From 1ddf594d15f31f1502eeb18f0f0c8039799fff01 Mon Sep 17 00:00:00 2001 From: raysan5 Date: Tue, 10 May 2016 18:24:28 +0200 Subject: Added support for indexed mesh data --- src/rlgl.c | 39 ++++++++++++++++++++++++++++----------- 1 file changed, 28 insertions(+), 11 deletions(-) (limited to 'src/rlgl.c') diff --git a/src/rlgl.c b/src/rlgl.c index 33f12deb..8364c4f1 100644 --- a/src/rlgl.c +++ b/src/rlgl.c @@ -783,16 +783,16 @@ void rlDisableDepthTest(void) // Unload texture from GPU memory void rlDeleteTextures(unsigned int id) { - glDeleteTextures(1, &id); + if (id != 0) glDeleteTextures(1, &id); } // Unload render texture from GPU memory void rlDeleteRenderTextures(RenderTexture2D target) { #if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) - glDeleteFramebuffers(1, &target.id); - glDeleteTextures(1, &target.texture.id); - glDeleteTextures(1, &target.depth.id); + if (target.id != 0) glDeleteFramebuffers(1, &target.id); + if (target.texture.id != 0) glDeleteTextures(1, &target.texture.id); + if (target.depth.id != 0) glDeleteTextures(1, &target.depth.id); #endif } @@ -800,7 +800,7 @@ void rlDeleteRenderTextures(RenderTexture2D target) void rlDeleteShader(unsigned int id) { #if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) - glDeleteProgram(id); + if (id != 0) glDeleteProgram(id); #endif } @@ -810,7 +810,7 @@ void rlDeleteVertexArrays(unsigned int id) #if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) if (vaoSupported) { - glDeleteVertexArrays(1, &id); + if (id != 0) glDeleteVertexArrays(1, &id); TraceLog(INFO, "[VAO ID %i] Unloaded model data from VRAM (GPU)", id); } #endif @@ -1204,10 +1204,13 @@ void rlglDrawEx(Mesh mesh, Material material, Matrix transform, bool wires) glVertexAttribPointer(material.shader.texcoord2Loc, 2, GL_FLOAT, 0, 0, 0); glEnableVertexAttribArray(material.shader.texcoord2Loc); } + + if (mesh.indices != NULL) glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, quadsBuffer[3]); } // Draw call! - glDrawArrays(GL_TRIANGLES, 0, mesh.vertexCount); + if (mesh.indices != NULL) glDrawElements(GL_TRIANGLES, mesh.trianglesCount*3, GL_UNSIGNED_SHORT, 0); // Indexed vertices draw + else glDrawArrays(GL_TRIANGLES, 0, mesh.vertexCount); if (material.texNormal.id != 0) { @@ -1225,7 +1228,11 @@ void rlglDrawEx(Mesh mesh, Material material, Matrix transform, bool wires) glBindTexture(GL_TEXTURE_2D, 0); // Unbind textures if (vaoSupported) glBindVertexArray(0); // Unbind VAO - else glBindBuffer(GL_ARRAY_BUFFER, 0); // Unbind VBOs + else + { + glBindBuffer(GL_ARRAY_BUFFER, 0); // Unbind VBOs + if (mesh.indices != NULL) glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); + } glUseProgram(0); // Unbind shader program #endif @@ -1682,11 +1689,12 @@ void rlglLoadMesh(Mesh *mesh) mesh->vboId[3] = 0; // Vertex colors VBO mesh->vboId[4] = 0; // Vertex tangents VBO mesh->vboId[5] = 0; // Vertex texcoords2 VBO + mesh->vboId[6] = 0; // Vertex indices VBO #if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) GLuint vaoId = 0; // Vertex Array Objects (VAO) - GLuint vboId[6]; // Vertex Buffer Objects (VBOs) + GLuint vboId[7]; // Vertex Buffer Objects (VBOs) if (vaoSupported) { @@ -1775,12 +1783,21 @@ void rlglLoadMesh(Mesh *mesh) glDisableVertexAttribArray(5); } + if (mesh->indices != NULL) + { + glGenBuffers(1, &vboId[6]); + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vboId[6]); + glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(unsigned short)*mesh->trianglesCount*3, mesh->indices, GL_STATIC_DRAW); + } + + mesh->vboId[0] = vboId[0]; // Vertex position VBO mesh->vboId[1] = vboId[1]; // Texcoords VBO mesh->vboId[2] = vboId[2]; // Normals VBO mesh->vboId[3] = vboId[3]; // Colors VBO mesh->vboId[4] = vboId[4]; // Tangents VBO mesh->vboId[5] = vboId[5]; // Texcoords2 VBO + mesh->vboId[6] = vboId[6]; // Indices VBO if (vaoSupported) { @@ -2733,9 +2750,9 @@ static void DrawDefaultBuffers(void) // NOTE: The final parameter tells the GPU the offset in bytes from the start of the index buffer to the location of the first index to process #if defined(GRAPHICS_API_OPENGL_33) - glDrawElements(GL_TRIANGLES, numIndicesToProcess, GL_UNSIGNED_INT, (GLvoid*) (sizeof(GLuint) * indicesOffset)); + glDrawElements(GL_TRIANGLES, numIndicesToProcess, GL_UNSIGNED_INT, (GLvoid *)(sizeof(GLuint)*indicesOffset)); #elif defined(GRAPHICS_API_OPENGL_ES2) - glDrawElements(GL_TRIANGLES, numIndicesToProcess, GL_UNSIGNED_SHORT, (GLvoid*) (sizeof(GLushort) * indicesOffset)); + glDrawElements(GL_TRIANGLES, numIndicesToProcess, GL_UNSIGNED_SHORT, (GLvoid *)(sizeof(GLushort)*indicesOffset)); #endif //GLenum err; //if ((err = glGetError()) != GL_NO_ERROR) TraceLog(INFO, "OpenGL error: %i", (int)err); //GL_INVALID_ENUM! -- cgit v1.2.3 From 6acfda599e5353b1c90bb11329ce50632851b1f5 Mon Sep 17 00:00:00 2001 From: raysan5 Date: Tue, 10 May 2016 19:25:06 +0200 Subject: Support indexed mesh data on OpenGL 1.1 path Keep asking myself why I maintain this rendering path... -___- --- src/rlgl.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'src/rlgl.c') diff --git a/src/rlgl.c b/src/rlgl.c index 8364c4f1..3c0d9e79 100644 --- a/src/rlgl.c +++ b/src/rlgl.c @@ -1094,7 +1094,7 @@ void rlglDrawEx(Mesh mesh, Material material, Matrix transform, bool wires) 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 + 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 @@ -1104,7 +1104,9 @@ void rlglDrawEx(Mesh mesh, Material material, Matrix transform, bool wires) rlPushMatrix(); rlMultMatrixf(MatrixToFloat(transform)); rlColor4ub(material.colDiffuse.r, material.colDiffuse.g, material.colDiffuse.b, material.colDiffuse.a); - glDrawArrays(GL_TRIANGLES, 0, mesh.vertexCount); + + 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 @@ -1209,7 +1211,7 @@ void rlglDrawEx(Mesh mesh, Material material, Matrix transform, bool wires) } // Draw call! - if (mesh.indices != NULL) glDrawElements(GL_TRIANGLES, mesh.trianglesCount*3, GL_UNSIGNED_SHORT, 0); // Indexed vertices draw + 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) @@ -1787,7 +1789,7 @@ void rlglLoadMesh(Mesh *mesh) { glGenBuffers(1, &vboId[6]); glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vboId[6]); - glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(unsigned short)*mesh->trianglesCount*3, mesh->indices, GL_STATIC_DRAW); + glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(unsigned short)*mesh->triangleCount*3, mesh->indices, GL_STATIC_DRAW); } -- cgit v1.2.3