From 037edbaa1322a2174d91c7aeacc9170f5b6913cb Mon Sep 17 00:00:00 2001 From: raysan5 Date: Wed, 18 May 2016 13:22:14 +0200 Subject: Reorganize data for consistency --- src/rlgl.c | 431 +++++++++++++++++++++++++++++++++++++------------------------ 1 file changed, 264 insertions(+), 167 deletions(-) (limited to 'src/rlgl.c') diff --git a/src/rlgl.c b/src/rlgl.c index 0c0da221..8e725521 100644 --- a/src/rlgl.c +++ b/src/rlgl.c @@ -740,6 +740,24 @@ void rlDisableDepthTest(void) glDisable(GL_DEPTH_TEST); } +// Enable wire mode +void rlEnableWireMode(void) +{ +#if defined (GRAPHICS_API_OPENGL_11) || defined(GRAPHICS_API_OPENGL_33) + // NOTE: glPolygonMode() not available on OpenGL ES + glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); +#endif +} + +// Disable wire mode +void rlDisableWireMode(void) +{ +#if defined (GRAPHICS_API_OPENGL_11) || defined(GRAPHICS_API_OPENGL_33) + // NOTE: glPolygonMode() not available on OpenGL ES + glPolygonMode(GL_FRONT_AND_BACK, GL_FILL); +#endif +} + // Unload texture from GPU memory void rlDeleteTextures(unsigned int id) { @@ -1033,175 +1051,15 @@ void rlglClose(void) void rlglDraw(void) { #if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) - UpdateDefaultBuffers(); - DrawDefaultBuffers(); -#endif -} - -// Draw a 3d mesh with material and transform -void rlglDrawEx(Mesh mesh, Material material, Matrix transform, bool wires) -{ -#if defined (GRAPHICS_API_OPENGL_11) || defined(GRAPHICS_API_OPENGL_33) - // NOTE: glPolygonMode() not available on OpenGL ES - if (wires) glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); -#endif - -#if defined(GRAPHICS_API_OPENGL_11) - glEnable(GL_TEXTURE_2D); - glBindTexture(GL_TEXTURE_2D, material.texDiffuse.id); - - // NOTE: On OpenGL 1.1 we use Vertex Arrays to draw model - glEnableClientState(GL_VERTEX_ARRAY); // Enable vertex array - glEnableClientState(GL_TEXTURE_COORD_ARRAY); // Enable texture coords array - if (mesh.normals != NULL) glEnableClientState(GL_NORMAL_ARRAY); // Enable normals array - if (mesh.colors != NULL) glEnableClientState(GL_COLOR_ARRAY); // Enable colors array - - glVertexPointer(3, GL_FLOAT, 0, mesh.vertices); // Pointer to vertex coords array - glTexCoordPointer(2, GL_FLOAT, 0, mesh.texcoords); // Pointer to texture coords array - if (mesh.normals != NULL) glNormalPointer(GL_FLOAT, 0, mesh.normals); // Pointer to normals array - if (mesh.colors != NULL) glColorPointer(4, GL_UNSIGNED_BYTE, 0, mesh.colors); // Pointer to colors array - - rlPushMatrix(); - rlMultMatrixf(MatrixToFloat(transform)); - rlColor4ub(material.colDiffuse.r, material.colDiffuse.g, material.colDiffuse.b, material.colDiffuse.a); - - if (mesh.indices != NULL) glDrawElements(GL_TRIANGLES, mesh.triangleCount*3, GL_UNSIGNED_SHORT, mesh.indices); - else glDrawArrays(GL_TRIANGLES, 0, mesh.vertexCount); - rlPopMatrix(); - - glDisableClientState(GL_VERTEX_ARRAY); // Disable vertex array - glDisableClientState(GL_TEXTURE_COORD_ARRAY); // Disable texture coords array - if (mesh.normals != NULL) glDisableClientState(GL_NORMAL_ARRAY); // Disable normals array - if (mesh.colors != NULL) glDisableClientState(GL_NORMAL_ARRAY); // Disable colors array - - glDisable(GL_TEXTURE_2D); - glBindTexture(GL_TEXTURE_2D, 0); -#endif - -#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) - glUseProgram(material.shader.id); - - // At this point the modelview matrix just contains the view matrix (camera) - // That's because Begin3dMode() sets it an no model-drawing function modifies it, all use rlPushMatrix() and rlPopMatrix() - Matrix matView = modelview; // View matrix (camera) - Matrix matProjection = projection; // Projection matrix (perspective) - - // Calculate model-view matrix combining matModel and matView - Matrix matModelView = MatrixMultiply(transform, matView); // Transform to camera-space coordinates - - // Calculate model-view-projection matrix (MVP) - Matrix matMVP = MatrixMultiply(matModelView, matProjection); // Transform to screen-space coordinates - - // Send combined model-view-projection matrix to shader - glUniformMatrix4fv(material.shader.mvpLoc, 1, false, MatrixToFloat(matMVP)); - - // Apply color tinting (material.colDiffuse) - // NOTE: Just update one uniform on fragment shader - float vColor[4] = { (float)material.colDiffuse.r/255, (float)material.colDiffuse.g/255, (float)material.colDiffuse.b/255, (float)material.colDiffuse.a/255 }; - glUniform4fv(material.shader.tintColorLoc, 1, vColor); - - // Set shader textures (diffuse, normal, specular) - glActiveTexture(GL_TEXTURE0); - glBindTexture(GL_TEXTURE_2D, material.texDiffuse.id); - glUniform1i(material.shader.mapDiffuseLoc, 0); // Texture fits in active texture unit 0 - - if ((material.texNormal.id != 0) && (material.shader.mapNormalLoc != -1)) - { - glActiveTexture(GL_TEXTURE1); - glBindTexture(GL_TEXTURE_2D, material.texNormal.id); - glUniform1i(material.shader.mapNormalLoc, 1); // Texture fits in active texture unit 1 - } - - if ((material.texSpecular.id != 0) && (material.shader.mapSpecularLoc != -1)) - { - glActiveTexture(GL_TEXTURE2); - glBindTexture(GL_TEXTURE_2D, material.texSpecular.id); - glUniform1i(material.shader.mapSpecularLoc, 2); // Texture fits in active texture unit 2 - } - - if (vaoSupported) - { - glBindVertexArray(mesh.vaoId); - } - else - { - // Bind mesh VBO data: vertex position (shader-location = 0) - glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[0]); - glVertexAttribPointer(material.shader.vertexLoc, 3, GL_FLOAT, 0, 0, 0); - glEnableVertexAttribArray(material.shader.vertexLoc); - - // Bind mesh VBO data: vertex texcoords (shader-location = 1) - glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[1]); - glVertexAttribPointer(material.shader.texcoordLoc, 2, GL_FLOAT, 0, 0, 0); - glEnableVertexAttribArray(material.shader.texcoordLoc); - - // Bind mesh VBO data: vertex normals (shader-location = 2, if available) - if (material.shader.normalLoc != -1) - { - glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[2]); - glVertexAttribPointer(material.shader.normalLoc, 3, GL_FLOAT, 0, 0, 0); - glEnableVertexAttribArray(material.shader.normalLoc); - } - - // Bind mesh VBO data: vertex colors (shader-location = 3, if available) , tangents, texcoords2 (if available) - if (material.shader.colorLoc != -1) - { - glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[3]); - glVertexAttribPointer(material.shader.colorLoc, 4, GL_UNSIGNED_BYTE, GL_TRUE, 0, 0); - glEnableVertexAttribArray(material.shader.colorLoc); - } - - // Bind mesh VBO data: vertex tangents (shader-location = 4, if available) - if (material.shader.tangentLoc != -1) - { - glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[4]); - glVertexAttribPointer(material.shader.tangentLoc, 3, GL_FLOAT, 0, 0, 0); - glEnableVertexAttribArray(material.shader.tangentLoc); - } - - // Bind mesh VBO data: vertex texcoords2 (shader-location = 5, if available) - if (material.shader.texcoord2Loc != -1) - { - glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[5]); - glVertexAttribPointer(material.shader.texcoord2Loc, 2, GL_FLOAT, 0, 0, 0); - glEnableVertexAttribArray(material.shader.texcoord2Loc); - } - - if (mesh.indices != NULL) glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, quads.vboId[3]); - } - - // Draw call! - if (mesh.indices != NULL) glDrawElements(GL_TRIANGLES, mesh.triangleCount*3, GL_UNSIGNED_SHORT, 0); // Indexed vertices draw - else glDrawArrays(GL_TRIANGLES, 0, mesh.vertexCount); - - if (material.texNormal.id != 0) - { - glActiveTexture(GL_TEXTURE1); - glBindTexture(GL_TEXTURE_2D, 0); - } - - if (material.texSpecular.id != 0) - { - glActiveTexture(GL_TEXTURE2); - glBindTexture(GL_TEXTURE_2D, 0); - } - - glActiveTexture(GL_TEXTURE0); // Set shader active texture to default 0 - glBindTexture(GL_TEXTURE_2D, 0); // Unbind textures - - if (vaoSupported) glBindVertexArray(0); // Unbind VAO - else +/* + for (int i = 0; i < modelsCount; i++) { - glBindBuffer(GL_ARRAY_BUFFER, 0); // Unbind VBOs - if (mesh.indices != NULL) glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); + rlglDrawMesh(models[i]->mesh, models[i]->material, models[i]->transform); } - - glUseProgram(0); // Unbind shader program -#endif - -#if defined (GRAPHICS_API_OPENGL_11) || defined(GRAPHICS_API_OPENGL_33) - // NOTE: glPolygonMode() not available on OpenGL ES - if (wires) glPolygonMode(GL_FRONT_AND_BACK, GL_FILL); +*/ + // NOTE: Default buffers always drawn at the end + UpdateDefaultBuffers(); + DrawDefaultBuffers(); #endif } @@ -1776,6 +1634,245 @@ void rlglLoadMesh(Mesh *mesh) #endif } +// Update vertex data on GPU (upload new data to one buffer) +void rlglUpdateMesh(Mesh mesh, int buffer, int numVertex) +{ + // Activate mesh VAO + if (vaoSupported) glBindVertexArray(mesh.vaoId); + + switch (buffer) + { + case 0: // Update vertices (vertex position) + { + glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[0]); + if (numVertex >= mesh.vertexCount) glBufferData(GL_ARRAY_BUFFER, sizeof(float)*3*numVertex, mesh.vertices, GL_DYNAMIC_DRAW); + else glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(float)*3*numVertex, mesh.vertices); + + } break; + case 1: // Update texcoords (vertex texture coordinates) + { + glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[1]); + if (numVertex >= mesh.vertexCount) glBufferData(GL_ARRAY_BUFFER, sizeof(float)*2*numVertex, mesh.texcoords, GL_DYNAMIC_DRAW); + else glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(float)*2*numVertex, mesh.texcoords); + + } break; + case 2: // Update normals (vertex normals) + { + glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[0]); + if (numVertex >= mesh.vertexCount) glBufferData(GL_ARRAY_BUFFER, sizeof(float)*3*numVertex, mesh.normals, GL_DYNAMIC_DRAW); + else glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(float)*3*numVertex, mesh.normals); + + } break; + case 3: // Update colors (vertex colors) + { + glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[2]); + if (numVertex >= mesh.vertexCount) glBufferData(GL_ARRAY_BUFFER, sizeof(float)*4*numVertex, mesh.colors, GL_DYNAMIC_DRAW); + else glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(unsigned char)*4*numVertex, mesh.colors); + + } break; + case 4: // Update tangents (vertex tangents) + { + glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[0]); + if (numVertex >= mesh.vertexCount) glBufferData(GL_ARRAY_BUFFER, sizeof(float)*3*numVertex, mesh.tangents, GL_DYNAMIC_DRAW); + else glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(float)*3*numVertex, mesh.tangents); + } break; + case 5: // Update texcoords2 (vertex second texture coordinates) + { + glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[1]); + if (numVertex >= mesh.vertexCount) glBufferData(GL_ARRAY_BUFFER, sizeof(float)*2*numVertex, mesh.texcoords2, GL_DYNAMIC_DRAW); + else glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(float)*2*numVertex, mesh.texcoords2); + } break; + default: break; + } + + // Unbind the current VAO + if (vaoSupported) glBindVertexArray(0); + + // Another option would be using buffer mapping... + //mesh.vertices = glMapBuffer(GL_ARRAY_BUFFER, GL_READ_WRITE); + // Now we can modify vertices + //glUnmapBuffer(GL_ARRAY_BUFFER); +} + +// Draw a 3d mesh with material and transform +void rlglDrawMesh(Mesh mesh, Material material, Matrix transform) +{ +#if defined(GRAPHICS_API_OPENGL_11) + glEnable(GL_TEXTURE_2D); + glBindTexture(GL_TEXTURE_2D, material.texDiffuse.id); + + // NOTE: On OpenGL 1.1 we use Vertex Arrays to draw model + glEnableClientState(GL_VERTEX_ARRAY); // Enable vertex array + glEnableClientState(GL_TEXTURE_COORD_ARRAY); // Enable texture coords array + if (mesh.normals != NULL) glEnableClientState(GL_NORMAL_ARRAY); // Enable normals array + if (mesh.colors != NULL) glEnableClientState(GL_COLOR_ARRAY); // Enable colors array + + glVertexPointer(3, GL_FLOAT, 0, mesh.vertices); // Pointer to vertex coords array + glTexCoordPointer(2, GL_FLOAT, 0, mesh.texcoords); // Pointer to texture coords array + if (mesh.normals != NULL) glNormalPointer(GL_FLOAT, 0, mesh.normals); // Pointer to normals array + if (mesh.colors != NULL) glColorPointer(4, GL_UNSIGNED_BYTE, 0, mesh.colors); // Pointer to colors array + + rlPushMatrix(); + rlMultMatrixf(MatrixToFloat(transform)); + rlColor4ub(material.colDiffuse.r, material.colDiffuse.g, material.colDiffuse.b, material.colDiffuse.a); + + if (mesh.indices != NULL) glDrawElements(GL_TRIANGLES, mesh.triangleCount*3, GL_UNSIGNED_SHORT, mesh.indices); + else glDrawArrays(GL_TRIANGLES, 0, mesh.vertexCount); + rlPopMatrix(); + + glDisableClientState(GL_VERTEX_ARRAY); // Disable vertex array + glDisableClientState(GL_TEXTURE_COORD_ARRAY); // Disable texture coords array + if (mesh.normals != NULL) glDisableClientState(GL_NORMAL_ARRAY); // Disable normals array + if (mesh.colors != NULL) glDisableClientState(GL_NORMAL_ARRAY); // Disable colors array + + glDisable(GL_TEXTURE_2D); + glBindTexture(GL_TEXTURE_2D, 0); +#endif + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glUseProgram(material.shader.id); + + // At this point the modelview matrix just contains the view matrix (camera) + // That's because Begin3dMode() sets it an no model-drawing function modifies it, all use rlPushMatrix() and rlPopMatrix() + Matrix matView = modelview; // View matrix (camera) + Matrix matProjection = projection; // Projection matrix (perspective) + + // Calculate model-view matrix combining matModel and matView + Matrix matModelView = MatrixMultiply(transform, matView); // Transform to camera-space coordinates + + // Calculate model-view-projection matrix (MVP) + Matrix matMVP = MatrixMultiply(matModelView, matProjection); // Transform to screen-space coordinates + + // Send combined model-view-projection matrix to shader + glUniformMatrix4fv(material.shader.mvpLoc, 1, false, MatrixToFloat(matMVP)); + + // Apply color tinting (material.colDiffuse) + // NOTE: Just update one uniform on fragment shader + float vColor[4] = { (float)material.colDiffuse.r/255, (float)material.colDiffuse.g/255, (float)material.colDiffuse.b/255, (float)material.colDiffuse.a/255 }; + glUniform4fv(material.shader.tintColorLoc, 1, vColor); + + // Set shader textures (diffuse, normal, specular) + glActiveTexture(GL_TEXTURE0); + glBindTexture(GL_TEXTURE_2D, material.texDiffuse.id); + glUniform1i(material.shader.mapDiffuseLoc, 0); // Texture fits in active texture unit 0 + + if ((material.texNormal.id != 0) && (material.shader.mapNormalLoc != -1)) + { + glActiveTexture(GL_TEXTURE1); + glBindTexture(GL_TEXTURE_2D, material.texNormal.id); + glUniform1i(material.shader.mapNormalLoc, 1); // Texture fits in active texture unit 1 + } + + if ((material.texSpecular.id != 0) && (material.shader.mapSpecularLoc != -1)) + { + glActiveTexture(GL_TEXTURE2); + glBindTexture(GL_TEXTURE_2D, material.texSpecular.id); + glUniform1i(material.shader.mapSpecularLoc, 2); // Texture fits in active texture unit 2 + } + + if (vaoSupported) + { + glBindVertexArray(mesh.vaoId); + } + else + { + // Bind mesh VBO data: vertex position (shader-location = 0) + glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[0]); + glVertexAttribPointer(material.shader.vertexLoc, 3, GL_FLOAT, 0, 0, 0); + glEnableVertexAttribArray(material.shader.vertexLoc); + + // Bind mesh VBO data: vertex texcoords (shader-location = 1) + glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[1]); + glVertexAttribPointer(material.shader.texcoordLoc, 2, GL_FLOAT, 0, 0, 0); + glEnableVertexAttribArray(material.shader.texcoordLoc); + + // Bind mesh VBO data: vertex normals (shader-location = 2, if available) + if (material.shader.normalLoc != -1) + { + glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[2]); + glVertexAttribPointer(material.shader.normalLoc, 3, GL_FLOAT, 0, 0, 0); + glEnableVertexAttribArray(material.shader.normalLoc); + } + + // Bind mesh VBO data: vertex colors (shader-location = 3, if available) , tangents, texcoords2 (if available) + if (material.shader.colorLoc != -1) + { + glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[3]); + glVertexAttribPointer(material.shader.colorLoc, 4, GL_UNSIGNED_BYTE, GL_TRUE, 0, 0); + glEnableVertexAttribArray(material.shader.colorLoc); + } + + // Bind mesh VBO data: vertex tangents (shader-location = 4, if available) + if (material.shader.tangentLoc != -1) + { + glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[4]); + glVertexAttribPointer(material.shader.tangentLoc, 3, GL_FLOAT, 0, 0, 0); + glEnableVertexAttribArray(material.shader.tangentLoc); + } + + // Bind mesh VBO data: vertex texcoords2 (shader-location = 5, if available) + if (material.shader.texcoord2Loc != -1) + { + glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[5]); + glVertexAttribPointer(material.shader.texcoord2Loc, 2, GL_FLOAT, 0, 0, 0); + glEnableVertexAttribArray(material.shader.texcoord2Loc); + } + + if (mesh.indices != NULL) glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, quads.vboId[3]); + } + + // Draw call! + if (mesh.indices != NULL) glDrawElements(GL_TRIANGLES, mesh.triangleCount*3, GL_UNSIGNED_SHORT, 0); // Indexed vertices draw + else glDrawArrays(GL_TRIANGLES, 0, mesh.vertexCount); + + if (material.texNormal.id != 0) + { + glActiveTexture(GL_TEXTURE1); + glBindTexture(GL_TEXTURE_2D, 0); + } + + if (material.texSpecular.id != 0) + { + glActiveTexture(GL_TEXTURE2); + glBindTexture(GL_TEXTURE_2D, 0); + } + + glActiveTexture(GL_TEXTURE0); // Set shader active texture to default 0 + glBindTexture(GL_TEXTURE_2D, 0); // Unbind textures + + if (vaoSupported) glBindVertexArray(0); // Unbind VAO + else + { + glBindBuffer(GL_ARRAY_BUFFER, 0); // Unbind VBOs + if (mesh.indices != NULL) glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); + } + + glUseProgram(0); // Unbind shader program +#endif +} + +// Unload mesh data from CPU and GPU +void rlglUnloadMesh(Mesh *mesh) +{ + if (mesh->vertices != NULL) free(mesh->vertices); + if (mesh->texcoords != NULL) free(mesh->texcoords); + if (mesh->normals != NULL) free(mesh->normals); + if (mesh->colors != NULL) free(mesh->colors); + if (mesh->tangents != NULL) free(mesh->tangents); + if (mesh->texcoords2 != NULL) free(mesh->texcoords2); + if (mesh->indices != NULL) free(mesh->indices); + + rlDeleteBuffers(mesh->vboId[0]); // vertex + rlDeleteBuffers(mesh->vboId[1]); // texcoords + rlDeleteBuffers(mesh->vboId[2]); // normals + rlDeleteBuffers(mesh->vboId[3]); // colors + rlDeleteBuffers(mesh->vboId[4]); // tangents + rlDeleteBuffers(mesh->vboId[5]); // texcoords2 + rlDeleteBuffers(mesh->vboId[6]); // indices + + rlDeleteVertexArrays(mesh->vaoId); +} + // Read screen pixel data (color buffer) unsigned char *rlglReadScreenPixels(int width, int height) { -- cgit v1.2.3 From 8bbbe8cd76d93bc85810fd13a6cb6c4df18bd30d Mon Sep 17 00:00:00 2001 From: raysan5 Date: Thu, 19 May 2016 13:50:29 +0200 Subject: Corrected namings --- src/rlgl.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'src/rlgl.c') diff --git a/src/rlgl.c b/src/rlgl.c index 8e725521..888a9313 100644 --- a/src/rlgl.c +++ b/src/rlgl.c @@ -2425,12 +2425,12 @@ static void LoadDefaultShaderLocations(Shader *shader) // vertex texcoord2 location = 5 // Get handles to GLSL input attibute locations - shader->vertexLoc = glGetAttribLocation(shader->id, "vertexPosition"); - shader->texcoordLoc = glGetAttribLocation(shader->id, "vertexTexCoord"); - shader->normalLoc = glGetAttribLocation(shader->id, "vertexNormal"); - shader->colorLoc = glGetAttribLocation(shader->id, "vertexColor"); - shader->tangentLoc = glGetAttribLocation(shader->id, "vertexTangent"); - shader->texcoord2Loc = glGetAttribLocation(shader->id, "vertexTexCoord2"); + shader->vertexLoc = glGetAttribLocation(shader->id, DEFAULT_ATTRIB_POSITION_NAME); + shader->texcoordLoc = glGetAttribLocation(shader->id, DEFAULT_ATTRIB_TEXCOORD_NAME); + shader->normalLoc = glGetAttribLocation(shader->id, DEFAULT_ATTRIB_NORMAL_NAME); + shader->colorLoc = glGetAttribLocation(shader->id, DEFAULT_ATTRIB_COLOR_NAME); + shader->tangentLoc = glGetAttribLocation(shader->id, DEFAULT_ATTRIB_TANGENT_NAME); + shader->texcoord2Loc = glGetAttribLocation(shader->id, DEFAULT_ATTRIB_TEXCOORD2_NAME); // Get handles to GLSL uniform locations (vertex shader) shader->mvpLoc = glGetUniformLocation(shader->id, "mvpMatrix"); @@ -2447,8 +2447,8 @@ static void UnloadDefaultShader(void) { glUseProgram(0); - //glDetachShader(defaultShaderProgram, vertexShader); - //glDetachShader(defaultShaderProgram, fragmentShader); + //glDetachShader(defaultShader, vertexShader); + //glDetachShader(defaultShader, fragmentShader); //glDeleteShader(vertexShader); // Already deleted on shader compilation //glDeleteShader(fragmentShader); // Already deleted on sahder compilation glDeleteProgram(defaultShader.id); -- cgit v1.2.3 From 7d1d9ff143cd7c6c55d3fd891b43e143431ea15f Mon Sep 17 00:00:00 2001 From: raysan5 Date: Fri, 20 May 2016 09:36:02 +0200 Subject: Support DYNAMIC_DRAW mesh loading --- src/rlgl.c | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) (limited to 'src/rlgl.c') diff --git a/src/rlgl.c b/src/rlgl.c index 888a9313..cc2b8942 100644 --- a/src/rlgl.c +++ b/src/rlgl.c @@ -1500,7 +1500,7 @@ void rlglGenerateMipmaps(Texture2D texture) } // Upload vertex data into a VAO (if supported) and VBO -void rlglLoadMesh(Mesh *mesh) +void rlglLoadMesh(Mesh *mesh, bool dynamic) { mesh->vaoId = 0; // Vertex Array Object mesh->vboId[0] = 0; // Vertex positions VBO @@ -1510,6 +1510,9 @@ void rlglLoadMesh(Mesh *mesh) mesh->vboId[4] = 0; // Vertex tangents VBO mesh->vboId[5] = 0; // Vertex texcoords2 VBO mesh->vboId[6] = 0; // Vertex indices VBO + + int drawHint = GL_STATIC_DRAW; + if (dynamic) drawHint = GL_DYNAMIC_DRAW; #if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) GLuint vaoId = 0; // Vertex Array Objects (VAO) @@ -1527,14 +1530,14 @@ void rlglLoadMesh(Mesh *mesh) // Enable vertex attributes: position (shader-location = 0) glGenBuffers(1, &vboId[0]); glBindBuffer(GL_ARRAY_BUFFER, vboId[0]); - glBufferData(GL_ARRAY_BUFFER, sizeof(float)*3*mesh->vertexCount, mesh->vertices, GL_STATIC_DRAW); + glBufferData(GL_ARRAY_BUFFER, sizeof(float)*3*mesh->vertexCount, mesh->vertices, drawHint); glVertexAttribPointer(0, 3, GL_FLOAT, 0, 0, 0); glEnableVertexAttribArray(0); // Enable vertex attributes: texcoords (shader-location = 1) glGenBuffers(1, &vboId[1]); glBindBuffer(GL_ARRAY_BUFFER, vboId[1]); - glBufferData(GL_ARRAY_BUFFER, sizeof(float)*2*mesh->vertexCount, mesh->texcoords, GL_STATIC_DRAW); + glBufferData(GL_ARRAY_BUFFER, sizeof(float)*2*mesh->vertexCount, mesh->texcoords, drawHint); glVertexAttribPointer(1, 2, GL_FLOAT, 0, 0, 0); glEnableVertexAttribArray(1); @@ -1543,7 +1546,7 @@ void rlglLoadMesh(Mesh *mesh) { glGenBuffers(1, &vboId[2]); glBindBuffer(GL_ARRAY_BUFFER, vboId[2]); - glBufferData(GL_ARRAY_BUFFER, sizeof(float)*3*mesh->vertexCount, mesh->normals, GL_STATIC_DRAW); + glBufferData(GL_ARRAY_BUFFER, sizeof(float)*3*mesh->vertexCount, mesh->normals, drawHint); glVertexAttribPointer(2, 3, GL_FLOAT, 0, 0, 0); glEnableVertexAttribArray(2); } @@ -1559,7 +1562,7 @@ void rlglLoadMesh(Mesh *mesh) { glGenBuffers(1, &vboId[3]); glBindBuffer(GL_ARRAY_BUFFER, vboId[3]); - glBufferData(GL_ARRAY_BUFFER, sizeof(unsigned char)*4*mesh->vertexCount, mesh->colors, GL_STATIC_DRAW); + glBufferData(GL_ARRAY_BUFFER, sizeof(unsigned char)*4*mesh->vertexCount, mesh->colors, drawHint); glVertexAttribPointer(3, 4, GL_UNSIGNED_BYTE, GL_TRUE, 0, 0); glEnableVertexAttribArray(3); } @@ -1575,7 +1578,7 @@ void rlglLoadMesh(Mesh *mesh) { glGenBuffers(1, &vboId[4]); glBindBuffer(GL_ARRAY_BUFFER, vboId[4]); - glBufferData(GL_ARRAY_BUFFER, sizeof(float)*3*mesh->vertexCount, mesh->tangents, GL_STATIC_DRAW); + glBufferData(GL_ARRAY_BUFFER, sizeof(float)*3*mesh->vertexCount, mesh->tangents, drawHint); glVertexAttribPointer(4, 3, GL_FLOAT, 0, 0, 0); glEnableVertexAttribArray(4); } @@ -1591,7 +1594,7 @@ void rlglLoadMesh(Mesh *mesh) { glGenBuffers(1, &vboId[5]); glBindBuffer(GL_ARRAY_BUFFER, vboId[5]); - glBufferData(GL_ARRAY_BUFFER, sizeof(float)*2*mesh->vertexCount, mesh->texcoords2, GL_STATIC_DRAW); + glBufferData(GL_ARRAY_BUFFER, sizeof(float)*2*mesh->vertexCount, mesh->texcoords2, drawHint); glVertexAttribPointer(5, 2, GL_FLOAT, 0, 0, 0); glEnableVertexAttribArray(5); } -- cgit v1.2.3 From dcf5f45f687f2a534286aecd5e6471a0440b0c21 Mon Sep 17 00:00:00 2001 From: raysan5 Date: Fri, 20 May 2016 12:28:07 +0200 Subject: Add lighting system -IN PROGRESS- Improved materials --- src/rlgl.c | 167 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 162 insertions(+), 5 deletions(-) (limited to 'src/rlgl.c') diff --git a/src/rlgl.c b/src/rlgl.c index cc2b8942..e971d747 100644 --- a/src/rlgl.c +++ b/src/rlgl.c @@ -71,6 +71,8 @@ #define MAX_DRAWS_BY_TEXTURE 256 // Draws are organized by texture changes #define TEMP_VERTEX_BUFFER_SIZE 4096 // Temporal Vertex Buffer (required for vertex-transformations) // NOTE: Every vertex are 3 floats (12 bytes) + +#define MAX_LIGHTS 8 // Max lights supported by standard shader #ifndef GL_SHADING_LANGUAGE_VERSION #define GL_SHADING_LANGUAGE_VERSION 0x8B8C @@ -199,6 +201,10 @@ static bool texCompETC1Supported = false; // ETC1 texture compression support static bool texCompETC2Supported = false; // ETC2/EAC texture compression support static bool texCompPVRTSupported = false; // PVR texture compression support static bool texCompASTCSupported = false; // ASTC texture compression support + +// Lighting data +static Light lights[MAX_LIGHTS]; // Lights pool +static int lightsCount; // Counts current enabled physic objects #endif // Compressed textures support flags @@ -227,6 +233,7 @@ static void LoadCompressedTexture(unsigned char *data, int width, int height, in static unsigned int LoadShaderProgram(char *vShaderStr, char *fShaderStr); // Load custom shader strings and return program id static Shader LoadDefaultShader(void); // Load default shader (just vertex positioning and texture coloring) +static Shader LoadStandardShader(void); // Load standard shader (support materials and lighting) static void LoadDefaultShaderLocations(Shader *shader); // Bind default shader locations (attributes and uniforms) static void UnloadDefaultShader(void); // Unload default shader @@ -235,6 +242,8 @@ static void UpdateDefaultBuffers(void); // Update default internal buffers ( static void DrawDefaultBuffers(void); // Draw default internal buffers vertex data static void UnloadDefaultBuffers(void); // Unload default internal buffers vertex data from CPU and GPU +static void SetShaderLights(Shader shader); // Sets shader uniform values for lights array + static char *ReadTextFile(const char *fileName); #endif @@ -1749,11 +1758,19 @@ void rlglDrawMesh(Mesh mesh, Material material, Matrix transform) // Send combined model-view-projection matrix to shader glUniformMatrix4fv(material.shader.mvpLoc, 1, false, MatrixToFloat(matMVP)); - // Apply color tinting (material.colDiffuse) - // NOTE: Just update one uniform on fragment shader - float vColor[4] = { (float)material.colDiffuse.r/255, (float)material.colDiffuse.g/255, (float)material.colDiffuse.b/255, (float)material.colDiffuse.a/255 }; - glUniform4fv(material.shader.tintColorLoc, 1, vColor); - + // Setup shader uniforms for material related data + // TODO: Check if using standard shader to get location points + + // Upload to shader material.colDiffuse + float vColorDiffuse[4] = { (float)material.colDiffuse.r/255, (float)material.colDiffuse.g/255, (float)material.colDiffuse.b/255, (float)material.colDiffuse.a/255 }; + glUniform4fv(material.shader.tintColorLoc, 1, vColorDiffuse); + + // TODO: Upload to shader material.colAmbient + // glUniform4f(???, (float)material.colAmbient.r/255, (float)material.colAmbient.g/255, (float)material.colAmbient.b/255, (float)material.colAmbient.a/255); + + // TODO: Upload to shader material.colSpecular + // glUniform4f(???, (float)material.colSpecular.r/255, (float)material.colSpecular.g/255, (float)material.colSpecular.b/255, (float)material.colSpecular.a/255); + // Set shader textures (diffuse, normal, specular) glActiveTexture(GL_TEXTURE0); glBindTexture(GL_TEXTURE_2D, material.texDiffuse.id); @@ -1764,6 +1781,9 @@ void rlglDrawMesh(Mesh mesh, Material material, Matrix transform) glActiveTexture(GL_TEXTURE1); glBindTexture(GL_TEXTURE_2D, material.texNormal.id); glUniform1i(material.shader.mapNormalLoc, 1); // Texture fits in active texture unit 1 + + // TODO: Upload to shader normalDepth + //glUniform1f(???, material.normalDepth); } if ((material.texSpecular.id != 0) && (material.shader.mapSpecularLoc != -1)) @@ -1771,7 +1791,13 @@ void rlglDrawMesh(Mesh mesh, Material material, Matrix transform) glActiveTexture(GL_TEXTURE2); glBindTexture(GL_TEXTURE_2D, material.texSpecular.id); glUniform1i(material.shader.mapSpecularLoc, 2); // Texture fits in active texture unit 2 + + // TODO: Upload to shader glossiness + //glUniform1f(???, material.glossiness); } + + // Setup shader uniforms for lights + SetShaderLights(material.shader); if (vaoSupported) { @@ -2198,6 +2224,55 @@ void SetBlendMode(int mode) } } +// Create a new light, initialize it and add to pool +// TODO: Review creation parameters (only generic ones) +Light CreateLight(int type, Vector3 position, Color diffuse) +{ + // Allocate dynamic memory + Light light = (Light)malloc(sizeof(LightData)); + + // Initialize light values with generic values + light->id = lightsCount; + light->type = type; + light->enabled = true; + + light->position = position; + light->direction = (Vector3){ 0.0f, 0.0f, 0.0f }; + light->intensity = 1.0f; + light->diffuse = diffuse; + light->specular = WHITE; + + // Add new light to the array + lights[lightsCount] = light; + + // Increase enabled lights count + lightsCount++; + + return light; +} + +// Destroy a light and take it out of the list +void DestroyLight(Light light) +{ + // Free dynamic memory allocation + free(lights[light->id]); + + // Remove *obj from the pointers array + for (int i = light->id; i < lightsCount; i++) + { + // Resort all the following pointers of the array + if ((i + 1) < lightsCount) + { + lights[i] = lights[i + 1]; + lights[i]->id = lights[i + 1]->id; + } + else free(lights[i]); + } + + // Decrease enabled physic objects count + lightsCount--; +} + //---------------------------------------------------------------------------------- // Module specific Functions Definition //---------------------------------------------------------------------------------- @@ -2415,6 +2490,32 @@ static Shader LoadDefaultShader(void) return shader; } +// Load standard shader +// NOTE: This shader supports: +// - Up to 3 different maps: diffuse, normal, specular +// - Material properties: colDiffuse, colAmbient, colSpecular, glossiness, normalDepth +// - Up to 8 lights: Point, Directional or Spot +static Shader LoadStandardShader(void) +{ + Shader shader; + + char *vShaderStr; + char *fShaderStr; + + // TODO: Implement standard uber-shader, supporting all features (GLSL 100 / GLSL 330) + + // NOTE: Shader could be quite extensive so it could be implemented in external files (standard.vs/standard.fs) + + shader.id = LoadShaderProgram(vShaderStr, fShaderStr); + + if (shader.id != 0) TraceLog(INFO, "[SHDR ID %i] Standard shader loaded successfully", shader.id); + else TraceLog(WARNING, "[SHDR ID %i] Standard shader could not be loaded", shader.id); + + if (shader.id != 0) LoadDefaultShaderLocations(&shader); // TODO: Review locations fetching + + return shader; +} + // Get location handlers to for shader attributes and uniforms // NOTE: If any location is not found, loc point becomes -1 static void LoadDefaultShaderLocations(Shader *shader) @@ -2900,6 +3001,62 @@ static void UnloadDefaultBuffers(void) free(quads.indices); } +// Sets shader uniform values for lights array +// NOTE: It would be far easier with shader UBOs but are not supported on OpenGL ES 2.0f +// TODO: Review memcpy() and parameters pass +static void SetShaderLights(Shader shader) +{ + /* + // NOTE: Standard Shader must include the following data: + + // Shader Light struct + struct Light { + vec3 position; + vec3 direction; + + vec3 diffuse; + float intensity; + } + + const int maxLights = 8; + uniform int lightsCount; // Number of lights + uniform Light lights[maxLights]; + */ + + int locPoint; + char locName[32] = "lights[x].position\0"; + + glUseProgram(shader.id); + + locPoint = glGetUniformLocation(shader.id, "lightsCount"); + glUniform1i(locPoint, lightsCount); + + for (int i = 0; i < lightsCount; i++) + { + locName[7] = '0' + i; + + memcpy(&locName[10], "position\0", strlen("position\0")); + locPoint = glGetUniformLocation(shader.id, locName); + glUniform3f(locPoint, lights[i]->position.x, lights[i]->position.y, lights[i]->position.z); + + memcpy(&locName[10], "direction\0", strlen("direction\0")); + locPoint = glGetUniformLocation(shader.id, locName); + glUniform3f(locPoint, lights[i]->direction.x, lights[i]->direction.y, lights[i]->direction.z); + + memcpy(&locName[10], "diffuse\0", strlen("diffuse\0")); + locPoint = glGetUniformLocation(shader.id, locName); + glUniform4f(locPoint, (float)lights[i]->diffuse.r/255, (float)lights[i]->diffuse.g/255, (float)lights[i]->diffuse.b/255, (float)lights[i]->diffuse.a/255 ); + + memcpy(&locName[10], "intensity\0", strlen("intensity\0")); + locPoint = glGetUniformLocation(shader.id, locName); + glUniform1f(locPoint, lights[i]->intensity); + + // TODO: Pass to the shader any other required data from LightData struct + } + + glUseProgram(0); +} + // Read text data from file // NOTE: text chars array should be freed manually static char *ReadTextFile(const char *fileName) -- cgit v1.2.3 From 6dac1efefef137ae487fa9f4c782b80538f784ba Mon Sep 17 00:00:00 2001 From: raysan5 Date: Fri, 20 May 2016 15:01:36 +0200 Subject: Comented buggy code to avoid problems... ...on model drawing --- src/rlgl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/rlgl.c') diff --git a/src/rlgl.c b/src/rlgl.c index e971d747..c5048aff 100644 --- a/src/rlgl.c +++ b/src/rlgl.c @@ -1797,7 +1797,7 @@ void rlglDrawMesh(Mesh mesh, Material material, Matrix transform) } // Setup shader uniforms for lights - SetShaderLights(material.shader); + //SetShaderLights(material.shader); if (vaoSupported) { -- cgit v1.2.3 From 30c8058fca39e4d6566b2fc06ae2498c48c00717 Mon Sep 17 00:00:00 2001 From: victorfisac Date: Fri, 20 May 2016 17:18:07 +0200 Subject: Add standard lighting (1/3) - Ambient and lambert lighting added. - Ambient and diffuse colors linked to standard shader. - Single light linked to standard shader. - LoadStandardMaterial() and depending functions added. --- src/rlgl.c | 149 ++++++++++++++++++++++++++++++++++++++++++++++++++----------- 1 file changed, 124 insertions(+), 25 deletions(-) (limited to 'src/rlgl.c') diff --git a/src/rlgl.c b/src/rlgl.c index c5048aff..e2195e4d 100644 --- a/src/rlgl.c +++ b/src/rlgl.c @@ -191,6 +191,7 @@ static bool useTempBuffer = false; // Shader Programs static Shader defaultShader; +static Shader standardShader; static Shader currentShader; // By default, defaultShader // Flags for supported extensions @@ -236,6 +237,7 @@ static Shader LoadDefaultShader(void); // Load default shader (just vertex static Shader LoadStandardShader(void); // Load standard shader (support materials and lighting) static void LoadDefaultShaderLocations(Shader *shader); // Bind default shader locations (attributes and uniforms) static void UnloadDefaultShader(void); // Unload default shader +static void UnloadStandardShader(void); // Unload standard shader static void LoadDefaultBuffers(void); // Load default internal buffers (lines, triangles, quads) static void UpdateDefaultBuffers(void); // Update default internal buffers (VAOs/VBOs) with vertex data @@ -1018,6 +1020,7 @@ void rlglInit(void) // Init default Shader (customized for GL 3.3 and ES2) defaultShader = LoadDefaultShader(); + standardShader = LoadStandardShader(); currentShader = defaultShader; LoadDefaultBuffers(); // Initialize default vertex arrays buffers (lines, triangles, quads) @@ -1046,6 +1049,7 @@ void rlglClose(void) { #if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) UnloadDefaultShader(); + UnloadStandardShader(); UnloadDefaultBuffers(); // Delete default white texture @@ -1757,19 +1761,30 @@ void rlglDrawMesh(Mesh mesh, Material material, Matrix transform) // Send combined model-view-projection matrix to shader glUniformMatrix4fv(material.shader.mvpLoc, 1, false, MatrixToFloat(matMVP)); - - // Setup shader uniforms for material related data - // TODO: Check if using standard shader to get location points // Upload to shader material.colDiffuse float vColorDiffuse[4] = { (float)material.colDiffuse.r/255, (float)material.colDiffuse.g/255, (float)material.colDiffuse.b/255, (float)material.colDiffuse.a/255 }; glUniform4fv(material.shader.tintColorLoc, 1, vColorDiffuse); + + // Check if using standard shader to get location points + // NOTE: standard shader specific locations are got at render time to keep Shader struct as simple as possible (with just default shader locations) + if(material.shader.id == standardShader.id) + { + // Send model transformations matrix to shader + glUniformMatrix4fv(glGetUniformLocation(material.shader.id, "modelMatrix"), 1, false, MatrixToFloat(transform)); + + // Setup shader uniforms for lights + SetShaderLights(material.shader); + + // Upload to shader material.colAmbient + glUniform4f(glGetUniformLocation(material.shader.id, "colAmbient"), (float)material.colAmbient.r/255, (float)material.colAmbient.g/255, (float)material.colAmbient.b/255, (float)material.colAmbient.a/255); + + // Upload to shader material.colSpecular + glUniform4f(glGetUniformLocation(material.shader.id, "colSpecular"), (float)material.colSpecular.r/255, (float)material.colSpecular.g/255, (float)material.colSpecular.b/255, (float)material.colSpecular.a/255); - // TODO: Upload to shader material.colAmbient - // glUniform4f(???, (float)material.colAmbient.r/255, (float)material.colAmbient.g/255, (float)material.colAmbient.b/255, (float)material.colAmbient.a/255); - - // TODO: Upload to shader material.colSpecular - // glUniform4f(???, (float)material.colSpecular.r/255, (float)material.colSpecular.g/255, (float)material.colSpecular.b/255, (float)material.colSpecular.a/255); + // TODO: Upload to shader glossiness + //glUniform1f(???, material.glossiness); + } // Set shader textures (diffuse, normal, specular) glActiveTexture(GL_TEXTURE0); @@ -1791,13 +1806,7 @@ void rlglDrawMesh(Mesh mesh, Material material, Matrix transform) glActiveTexture(GL_TEXTURE2); glBindTexture(GL_TEXTURE_2D, material.texSpecular.id); glUniform1i(material.shader.mapSpecularLoc, 2); // Texture fits in active texture unit 2 - - // TODO: Upload to shader glossiness - //glUniform1f(???, material.glossiness); } - - // Setup shader uniforms for lights - //SetShaderLights(material.shader); if (vaoSupported) { @@ -2148,6 +2157,17 @@ Shader GetDefaultShader(void) #endif } +// Get default shader +Shader GetStandardShader(void) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + return standardShader; +#else + Shader shader = { 0 }; + return shader; +#endif +} + // Get shader uniform location int GetShaderLocation(Shader shader, const char *uniformName) { @@ -2499,13 +2519,75 @@ static Shader LoadStandardShader(void) { Shader shader; - char *vShaderStr; - char *fShaderStr; - - // TODO: Implement standard uber-shader, supporting all features (GLSL 100 / GLSL 330) - - // NOTE: Shader could be quite extensive so it could be implemented in external files (standard.vs/standard.fs) - + // Vertex shader directly defined, no external file required +#if defined(GRAPHICS_API_OPENGL_33) + char vShaderStr[] = "#version 330 \n" + "in vec3 vertexPosition; \n" + "in vec3 vertexNormal; \n" + "in vec2 vertexTexCoord; \n" + "in vec4 vertexColor; \n" + "out vec2 fragTexCoord; \n" + "out vec4 fragColor; \n" + "out vec3 fragNormal; \n" +#elif defined(GRAPHICS_API_OPENGL_ES2) + char vShaderStr[] = "#version 100 \n" + "attribute vec3 vertexPosition; \n" + "attribute vec3 vertexNormal; \n" + "attribute vec2 vertexTexCoord; \n" + "attribute vec4 vertexColor; \n" + "varying vec2 fragTexCoord; \n" + "varying vec4 fragColor; \n" + "varying vec3 fragNormal; \n" +#endif + "uniform mat4 mvpMatrix; \n" + "uniform mat4 modelMatrix; \n" + "void main() \n" + "{ \n" + " fragTexCoord = vertexTexCoord; \n" + " fragColor = vertexColor; \n" + " mat3 normalMatrix = transpose(inverse(mat3(modelMatrix))); \n" + " fragNormal = normalize(normalMatrix*vertexNormal); \n" + " gl_Position = mvpMatrix*vec4(vertexPosition, 1.0); \n" + "} \n"; + + // TODO: add specular calculation, multi-lights structs and light type calculations (directional, point, spot) + // Fragment shader directly defined, no external file required +#if defined(GRAPHICS_API_OPENGL_33) + char fShaderStr[] = "#version 330 \n" + "in vec2 fragTexCoord; \n" + "in vec4 fragColor; \n" + "in vec3 fragNormal; \n" + "out vec4 finalColor; \n" +#elif defined(GRAPHICS_API_OPENGL_ES2) + char fShaderStr[] = "#version 100 \n" + "precision mediump float; \n" // precision required for OpenGL ES2 (WebGL) + "varying vec2 fragTexCoord; \n" + "varying vec4 fragColor; \n" + "varying vec3 fragNormal; \n" +#endif + "uniform sampler2D texture0; \n" + "uniform vec4 fragTintColor; \n" + "uniform vec4 colAmbient; \n" + "uniform vec4 colSpecular; \n" + "uniform vec3 lightDir; \n" + "vec3 LambertLighting(in vec3 n, in vec3 l) \n" + "{ \n" + " return clamp(dot(n, l), 0, 1)*fragTintColor.rgb; \n" + "} \n" + + "void main() \n" + "{ \n" + " vec3 n = normalize(fragNormal); \n" + " vec3 l = normalize(lightDir); \n" +#if defined(GRAPHICS_API_OPENGL_33) + " vec4 texelColor = texture(texture0, fragTexCoord); \n" + " finalColor = vec4(texelColor.rgb*(colAmbient.rgb + LambertLighting(n, l)) - colSpecular.rgb + colSpecular.rgb, texelColor.a*fragTintColor.a); \n" // Stupid specular color operation to avoid shader location errors +#elif defined(GRAPHICS_API_OPENGL_ES2) + " vec4 texelColor = texture2D(texture0, fragTexCoord); \n" // NOTE: texture2D() is deprecated on OpenGL 3.3 and ES 3.0 + " gl_FragColor = texelColor*fragTintColor*fragColor; \n" +#endif + "} \n"; + shader.id = LoadShaderProgram(vShaderStr, fShaderStr); if (shader.id != 0) TraceLog(INFO, "[SHDR ID %i] Standard shader loaded successfully", shader.id); @@ -2554,10 +2636,23 @@ static void UnloadDefaultShader(void) //glDetachShader(defaultShader, vertexShader); //glDetachShader(defaultShader, fragmentShader); //glDeleteShader(vertexShader); // Already deleted on shader compilation - //glDeleteShader(fragmentShader); // Already deleted on sahder compilation + //glDeleteShader(fragmentShader); // Already deleted on shader compilation glDeleteProgram(defaultShader.id); } +// Unload standard shader +static void UnloadStandardShader(void) +{ + glUseProgram(0); + + //glDetachShader(defaultShader, vertexShader); + //glDetachShader(defaultShader, fragmentShader); + //glDeleteShader(vertexShader); // Already deleted on shader compilation + //glDeleteShader(fragmentShader); // Already deleted on shader compilation + glDeleteProgram(standardShader.id); +} + + // Load default internal buffers (lines, triangles, quads) static void LoadDefaultBuffers(void) { @@ -3006,6 +3101,9 @@ static void UnloadDefaultBuffers(void) // TODO: Review memcpy() and parameters pass static void SetShaderLights(Shader shader) { + // Note: currently working with one light (index 0) + // TODO: add multi-lights feature (http://www.learnopengl.com/#!Lighting/Multiple-lights) + /* // NOTE: Standard Shader must include the following data: @@ -3023,7 +3121,7 @@ static void SetShaderLights(Shader shader) uniform Light lights[maxLights]; */ - int locPoint; + /*int locPoint; char locName[32] = "lights[x].position\0"; glUseProgram(shader.id); @@ -3052,9 +3150,10 @@ static void SetShaderLights(Shader shader) glUniform1f(locPoint, lights[i]->intensity); // TODO: Pass to the shader any other required data from LightData struct - } + }*/ - glUseProgram(0); + int locPoint = GetShaderLocation(shader, "lightDir"); + glUniform3f(locPoint, lights[0]->position.x, lights[0]->position.y, lights[0]->position.z); } // Read text data from file -- cgit v1.2.3 From c320a21f2b0e96f7605624e84048ccab9700b516 Mon Sep 17 00:00:00 2001 From: victorfisac Date: Sat, 21 May 2016 18:16:39 +0200 Subject: Add standard lighting (2/3) - 3 light types added (point, directional, spot). - DrawLights() function added using line shapes. - Standard lighting example added. - Removed useless struct variables from material and light. - Fixed light attributes dynamic locations errors. - Standard vertex and fragment shaders temporally added until rewrite it as char pointers in rlgl. TODO: - Add normal and specular maps calculations in standard shader. - Add control structs to handle which attributes needs to be calculated (textures, specular...). - Adapt standard shader to version 110. - Rewrite standard shader as char pointers in rlgl. --- src/rlgl.c | 213 ++++++++++++++++++++++++++----------------------------------- 1 file changed, 91 insertions(+), 122 deletions(-) (limited to 'src/rlgl.c') diff --git a/src/rlgl.c b/src/rlgl.c index e2195e4d..55677f3e 100644 --- a/src/rlgl.c +++ b/src/rlgl.c @@ -1773,6 +1773,9 @@ void rlglDrawMesh(Mesh mesh, Material material, Matrix transform) // Send model transformations matrix to shader glUniformMatrix4fv(glGetUniformLocation(material.shader.id, "modelMatrix"), 1, false, MatrixToFloat(transform)); + // Send view transformation matrix to shader. View matrix 8, 9 and 10 are view direction vector axis values (target - position) + glUniform3f(glGetUniformLocation(material.shader.id, "viewDir"), matView.m8, matView.m9, matView.m10); + // Setup shader uniforms for lights SetShaderLights(material.shader); @@ -1782,8 +1785,8 @@ void rlglDrawMesh(Mesh mesh, Material material, Matrix transform) // Upload to shader material.colSpecular glUniform4f(glGetUniformLocation(material.shader.id, "colSpecular"), (float)material.colSpecular.r/255, (float)material.colSpecular.g/255, (float)material.colSpecular.b/255, (float)material.colSpecular.a/255); - // TODO: Upload to shader glossiness - //glUniform1f(???, material.glossiness); + // Upload to shader glossiness + glUniform1f(glGetUniformLocation(material.shader.id, "glossiness"), material.glossiness); } // Set shader textures (diffuse, normal, specular) @@ -2245,7 +2248,6 @@ void SetBlendMode(int mode) } // Create a new light, initialize it and add to pool -// TODO: Review creation parameters (only generic ones) Light CreateLight(int type, Vector3 position, Color diffuse) { // Allocate dynamic memory @@ -2257,10 +2259,9 @@ Light CreateLight(int type, Vector3 position, Color diffuse) light->enabled = true; light->position = position; - light->direction = (Vector3){ 0.0f, 0.0f, 0.0f }; + light->target = (Vector3){ 0.0f, 0.0f, 0.0f }; light->intensity = 1.0f; light->diffuse = diffuse; - light->specular = WHITE; // Add new light to the array lights[lightsCount] = light; @@ -2271,6 +2272,31 @@ Light CreateLight(int type, Vector3 position, Color diffuse) return light; } +// Draw all created lights in 3D world +void DrawLights(void) +{ + for (int i = 0; i < lightsCount; i++) + { + switch (lights[i]->type) + { + case LIGHT_POINT: DrawSphereWires(lights[i]->position, 0.3f*lights[i]->intensity, 4, 8, (lights[i]->enabled ? lights[i]->diffuse : BLACK)); break; + case LIGHT_DIRECTIONAL: + { + Draw3DLine(lights[i]->position, lights[i]->target, (lights[i]->enabled ? lights[i]->diffuse : BLACK)); + DrawSphereWires(lights[i]->position, 0.3f*lights[i]->intensity, 4, 8, (lights[i]->enabled ? lights[i]->diffuse : BLACK)); + DrawCubeWires(lights[i]->target, 0.3f, 0.3f, 0.3f, (lights[i]->enabled ? lights[i]->diffuse : BLACK)); + } + case LIGHT_SPOT: + { + Draw3DLine(lights[i]->position, lights[i]->target, (lights[i]->enabled ? lights[i]->diffuse : BLACK)); + DrawCylinderWires(lights[i]->position, 0.0f, 0.3f*lights[i]->coneAngle/50, 0.6f, 5, (lights[i]->enabled ? lights[i]->diffuse : BLACK)); + DrawCubeWires(lights[i]->target, 0.3f, 0.3f, 0.3f, (lights[i]->enabled ? lights[i]->diffuse : BLACK)); + } break; + default: break; + } + } +} + // Destroy a light and take it out of the list void DestroyLight(Light light) { @@ -2488,15 +2514,15 @@ static Shader LoadDefaultShader(void) "varying vec4 fragColor; \n" #endif "uniform sampler2D texture0; \n" - "uniform vec4 fragTintColor; \n" + "uniform vec4 colDiffuse; \n" "void main() \n" "{ \n" #if defined(GRAPHICS_API_OPENGL_33) " vec4 texelColor = texture(texture0, fragTexCoord); \n" - " finalColor = texelColor*fragTintColor*fragColor; \n" + " finalColor = texelColor*colDiffuse*fragColor; \n" #elif defined(GRAPHICS_API_OPENGL_ES2) " vec4 texelColor = texture2D(texture0, fragTexCoord); \n" // NOTE: texture2D() is deprecated on OpenGL 3.3 and ES 3.0 - " gl_FragColor = texelColor*fragTintColor*fragColor; \n" + " gl_FragColor = texelColor*colDiffuse*fragColor; \n" #endif "} \n"; @@ -2513,87 +2539,17 @@ static Shader LoadDefaultShader(void) // Load standard shader // NOTE: This shader supports: // - Up to 3 different maps: diffuse, normal, specular -// - Material properties: colDiffuse, colAmbient, colSpecular, glossiness, normalDepth +// - Material properties: colAmbient, colDiffuse, colSpecular, glossiness, normalDepth // - Up to 8 lights: Point, Directional or Spot static Shader LoadStandardShader(void) { - Shader shader; - - // Vertex shader directly defined, no external file required -#if defined(GRAPHICS_API_OPENGL_33) - char vShaderStr[] = "#version 330 \n" - "in vec3 vertexPosition; \n" - "in vec3 vertexNormal; \n" - "in vec2 vertexTexCoord; \n" - "in vec4 vertexColor; \n" - "out vec2 fragTexCoord; \n" - "out vec4 fragColor; \n" - "out vec3 fragNormal; \n" -#elif defined(GRAPHICS_API_OPENGL_ES2) - char vShaderStr[] = "#version 100 \n" - "attribute vec3 vertexPosition; \n" - "attribute vec3 vertexNormal; \n" - "attribute vec2 vertexTexCoord; \n" - "attribute vec4 vertexColor; \n" - "varying vec2 fragTexCoord; \n" - "varying vec4 fragColor; \n" - "varying vec3 fragNormal; \n" -#endif - "uniform mat4 mvpMatrix; \n" - "uniform mat4 modelMatrix; \n" - "void main() \n" - "{ \n" - " fragTexCoord = vertexTexCoord; \n" - " fragColor = vertexColor; \n" - " mat3 normalMatrix = transpose(inverse(mat3(modelMatrix))); \n" - " fragNormal = normalize(normalMatrix*vertexNormal); \n" - " gl_Position = mvpMatrix*vec4(vertexPosition, 1.0); \n" - "} \n"; - - // TODO: add specular calculation, multi-lights structs and light type calculations (directional, point, spot) - // Fragment shader directly defined, no external file required -#if defined(GRAPHICS_API_OPENGL_33) - char fShaderStr[] = "#version 330 \n" - "in vec2 fragTexCoord; \n" - "in vec4 fragColor; \n" - "in vec3 fragNormal; \n" - "out vec4 finalColor; \n" -#elif defined(GRAPHICS_API_OPENGL_ES2) - char fShaderStr[] = "#version 100 \n" - "precision mediump float; \n" // precision required for OpenGL ES2 (WebGL) - "varying vec2 fragTexCoord; \n" - "varying vec4 fragColor; \n" - "varying vec3 fragNormal; \n" -#endif - "uniform sampler2D texture0; \n" - "uniform vec4 fragTintColor; \n" - "uniform vec4 colAmbient; \n" - "uniform vec4 colSpecular; \n" - "uniform vec3 lightDir; \n" - "vec3 LambertLighting(in vec3 n, in vec3 l) \n" - "{ \n" - " return clamp(dot(n, l), 0, 1)*fragTintColor.rgb; \n" - "} \n" - - "void main() \n" - "{ \n" - " vec3 n = normalize(fragNormal); \n" - " vec3 l = normalize(lightDir); \n" -#if defined(GRAPHICS_API_OPENGL_33) - " vec4 texelColor = texture(texture0, fragTexCoord); \n" - " finalColor = vec4(texelColor.rgb*(colAmbient.rgb + LambertLighting(n, l)) - colSpecular.rgb + colSpecular.rgb, texelColor.a*fragTintColor.a); \n" // Stupid specular color operation to avoid shader location errors -#elif defined(GRAPHICS_API_OPENGL_ES2) - " vec4 texelColor = texture2D(texture0, fragTexCoord); \n" // NOTE: texture2D() is deprecated on OpenGL 3.3 and ES 3.0 - " gl_FragColor = texelColor*fragTintColor*fragColor; \n" -#endif - "} \n"; - - shader.id = LoadShaderProgram(vShaderStr, fShaderStr); + // Load standard shader (TODO: rewrite as char pointers) + Shader shader = LoadShader("resources/shaders/standard.vs", "resources/shaders/standard.fs"); if (shader.id != 0) TraceLog(INFO, "[SHDR ID %i] Standard shader loaded successfully", shader.id); else TraceLog(WARNING, "[SHDR ID %i] Standard shader could not be loaded", shader.id); - if (shader.id != 0) LoadDefaultShaderLocations(&shader); // TODO: Review locations fetching + if (shader.id != 0) LoadDefaultShaderLocations(&shader); return shader; } @@ -2622,7 +2578,7 @@ static void LoadDefaultShaderLocations(Shader *shader) shader->mvpLoc = glGetUniformLocation(shader->id, "mvpMatrix"); // Get handles to GLSL uniform locations (fragment shader) - shader->tintColorLoc = glGetUniformLocation(shader->id, "fragTintColor"); + shader->tintColorLoc = glGetUniformLocation(shader->id, "colDiffuse"); shader->mapDiffuseLoc = glGetUniformLocation(shader->id, "texture0"); shader->mapNormalLoc = glGetUniformLocation(shader->id, "texture1"); shader->mapSpecularLoc = glGetUniformLocation(shader->id, "texture2"); @@ -3098,62 +3054,75 @@ static void UnloadDefaultBuffers(void) // Sets shader uniform values for lights array // NOTE: It would be far easier with shader UBOs but are not supported on OpenGL ES 2.0f -// TODO: Review memcpy() and parameters pass static void SetShaderLights(Shader shader) { - // Note: currently working with one light (index 0) - // TODO: add multi-lights feature (http://www.learnopengl.com/#!Lighting/Multiple-lights) - - /* - // NOTE: Standard Shader must include the following data: - - // Shader Light struct - struct Light { - vec3 position; - vec3 direction; - - vec3 diffuse; - float intensity; - } - - const int maxLights = 8; - uniform int lightsCount; // Number of lights - uniform Light lights[maxLights]; - */ + int locPoint = glGetUniformLocation(shader.id, "lightsCount"); + glUniform1i(locPoint, lightsCount); - /*int locPoint; char locName[32] = "lights[x].position\0"; - - glUseProgram(shader.id); - - locPoint = glGetUniformLocation(shader.id, "lightsCount"); - glUniform1i(locPoint, lightsCount); for (int i = 0; i < lightsCount; i++) { locName[7] = '0' + i; - memcpy(&locName[10], "position\0", strlen("position\0")); - locPoint = glGetUniformLocation(shader.id, locName); - glUniform3f(locPoint, lights[i]->position.x, lights[i]->position.y, lights[i]->position.z); + memcpy(&locName[10], "enabled\0", strlen("enabled\0") + 1); + locPoint = GetShaderLocation(shader, locName); + glUniform1i(locPoint, lights[i]->enabled); - memcpy(&locName[10], "direction\0", strlen("direction\0")); - locPoint = glGetUniformLocation(shader.id, locName); - glUniform3f(locPoint, lights[i]->direction.x, lights[i]->direction.y, lights[i]->direction.z); - - memcpy(&locName[10], "diffuse\0", strlen("diffuse\0")); + memcpy(&locName[10], "type\0", strlen("type\0") + 1); + locPoint = GetShaderLocation(shader, locName); + glUniform1i(locPoint, lights[i]->type); + + memcpy(&locName[10], "diffuse\0", strlen("diffuse\0") + 2); locPoint = glGetUniformLocation(shader.id, locName); - glUniform4f(locPoint, (float)lights[i]->diffuse.r/255, (float)lights[i]->diffuse.g/255, (float)lights[i]->diffuse.b/255, (float)lights[i]->diffuse.a/255 ); + glUniform4f(locPoint, (float)lights[i]->diffuse.r/255, (float)lights[i]->diffuse.g/255, (float)lights[i]->diffuse.b/255, (float)lights[i]->diffuse.a/255); memcpy(&locName[10], "intensity\0", strlen("intensity\0")); locPoint = glGetUniformLocation(shader.id, locName); glUniform1f(locPoint, lights[i]->intensity); + switch(lights[i]->type) + { + case LIGHT_POINT: + { + memcpy(&locName[10], "position\0", strlen("position\0") + 1); + locPoint = GetShaderLocation(shader, locName); + glUniform3f(locPoint, lights[i]->position.x, lights[i]->position.y, lights[i]->position.z); + + memcpy(&locName[10], "attenuation\0", strlen("attenuation\0")); + locPoint = GetShaderLocation(shader, locName); + glUniform1f(locPoint, lights[i]->attenuation); + } break; + case LIGHT_DIRECTIONAL: + { + memcpy(&locName[10], "direction\0", strlen("direction\0") + 2); + locPoint = GetShaderLocation(shader, locName); + Vector3 direction = { lights[i]->target.x - lights[i]->position.x, lights[i]->target.y - lights[i]->position.y, lights[i]->target.z - lights[i]->position.z }; + VectorNormalize(&direction); + glUniform3f(locPoint, direction.x, direction.y, direction.z); + } break; + case LIGHT_SPOT: + { + memcpy(&locName[10], "position\0", strlen("position\0") + 1); + locPoint = GetShaderLocation(shader, locName); + glUniform3f(locPoint, lights[i]->position.x, lights[i]->position.y, lights[i]->position.z); + + memcpy(&locName[10], "direction\0", strlen("direction\0") + 2); + locPoint = GetShaderLocation(shader, locName); + + Vector3 direction = { lights[i]->target.x - lights[i]->position.x, lights[i]->target.y - lights[i]->position.y, lights[i]->target.z - lights[i]->position.z }; + VectorNormalize(&direction); + glUniform3f(locPoint, direction.x, direction.y, direction.z); + + memcpy(&locName[10], "coneAngle\0", strlen("coneAngle\0")); + locPoint = GetShaderLocation(shader, locName); + glUniform1f(locPoint, lights[i]->coneAngle); + } break; + default: break; + } + // TODO: Pass to the shader any other required data from LightData struct - }*/ - - int locPoint = GetShaderLocation(shader, "lightDir"); - glUniform3f(locPoint, lights[0]->position.x, lights[0]->position.y, lights[0]->position.z); + } } // Read text data from file -- cgit v1.2.3 From dcd6942ed1ab703625f5c7072cbcfd823c681db7 Mon Sep 17 00:00:00 2001 From: victorfisac Date: Sat, 21 May 2016 18:22:15 +0200 Subject: Fix small bug and spacing --- src/rlgl.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'src/rlgl.c') diff --git a/src/rlgl.c b/src/rlgl.c index 55677f3e..85c0cae2 100644 --- a/src/rlgl.c +++ b/src/rlgl.c @@ -1397,7 +1397,7 @@ RenderTexture2D rlglLoadRenderTexture(int width, int height) { TraceLog(WARNING, "Framebuffer object could not be created..."); - switch(status) + switch (status) { case GL_FRAMEBUFFER_UNSUPPORTED: TraceLog(WARNING, "Framebuffer is unsupported"); break; case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT: TraceLog(WARNING, "Framebuffer incomplete attachment"); break; @@ -1768,7 +1768,7 @@ void rlglDrawMesh(Mesh mesh, Material material, Matrix transform) // Check if using standard shader to get location points // NOTE: standard shader specific locations are got at render time to keep Shader struct as simple as possible (with just default shader locations) - if(material.shader.id == standardShader.id) + if (material.shader.id == standardShader.id) { // Send model transformations matrix to shader glUniformMatrix4fv(glGetUniformLocation(material.shader.id, "modelMatrix"), 1, false, MatrixToFloat(transform)); @@ -2285,7 +2285,7 @@ void DrawLights(void) Draw3DLine(lights[i]->position, lights[i]->target, (lights[i]->enabled ? lights[i]->diffuse : BLACK)); DrawSphereWires(lights[i]->position, 0.3f*lights[i]->intensity, 4, 8, (lights[i]->enabled ? lights[i]->diffuse : BLACK)); DrawCubeWires(lights[i]->target, 0.3f, 0.3f, 0.3f, (lights[i]->enabled ? lights[i]->diffuse : BLACK)); - } + } break; case LIGHT_SPOT: { Draw3DLine(lights[i]->position, lights[i]->target, (lights[i]->enabled ? lights[i]->diffuse : BLACK)); @@ -3081,7 +3081,7 @@ static void SetShaderLights(Shader shader) locPoint = glGetUniformLocation(shader.id, locName); glUniform1f(locPoint, lights[i]->intensity); - switch(lights[i]->type) + switch (lights[i]->type) { case LIGHT_POINT: { @@ -3295,7 +3295,7 @@ static void TraceLog(int msgType, const char *text, ...) va_list args; va_start(args, text); - switch(msgType) + switch (msgType) { case INFO: fprintf(stdout, "INFO: "); break; case ERROR: fprintf(stdout, "ERROR: "); break; -- cgit v1.2.3