Merge branch 'master' of https://github.com/raysan5/raylib into dr/mini_al

15 files changed, 171 insertions, 57 deletions

diff --git a/examples/models/models_billboard.c b/examples/models/models_billboard.c
index bca9faf8..3b3efc47 100644
--- a/examples/models/models_billboard.c
+++ b/examples/models/models_billboard.c
@@ -21,7 +21,13 @@ int main()
     InitWindow(screenWidth, screenHeight, "raylib [models] example - drawing billboards");
 
     // Define the camera to look into our 3d world
-    Camera camera = {{ 5.0f, 4.0f, 5.0f }, { 0.0f, 2.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f };
+    Camera camera = { 0 };
+    camera.position = (Vector3){ 5.0f, 4.0f, 5.0f };
+    camera.target = (Vector3){ 0.0f, 2.0f, 0.0f };
+    camera.up = (Vector3){ 0.0f, 1.0f, 0.0f };
+    camera.fovy = 45.0f;
+    camera.type = CAMERA_PERSPECTIVE;
+    
 
     Texture2D bill = LoadTexture("resources/billboard.png");     // Our texture billboard
     Vector3 billPosition = { 0.0f, 2.0f, 0.0f };                 // Position where draw billboard
diff --git a/examples/models/models_box_collisions.c b/examples/models/models_box_collisions.c
index 69cec418..eb72c54c 100644
--- a/examples/models/models_box_collisions.c
+++ b/examples/models/models_box_collisions.c
@@ -21,7 +21,7 @@ int main()
     InitWindow(screenWidth, screenHeight, "raylib [models] example - box collisions");
 
     // Define the camera to look into our 3d world
-    Camera camera = {{ 0.0f, 10.0f, 10.0f }, { 0.0f, 0.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f };
+    Camera camera = {{ 0.0f, 10.0f, 10.0f }, { 0.0f, 0.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f, 0 };
     
     Vector3 playerPosition = { 0.0f, 1.0f, 2.0f };
     Vector3 playerSize = { 1.0f, 2.0f, 1.0f };
diff --git a/examples/models/models_cubicmap.c b/examples/models/models_cubicmap.c
index d8be9329..47b88748 100644
--- a/examples/models/models_cubicmap.c
+++ b/examples/models/models_cubicmap.c
@@ -21,7 +21,7 @@ int main()
     InitWindow(screenWidth, screenHeight, "raylib [models] example - cubesmap loading and drawing");
 
     // Define the camera to look into our 3d world
-    Camera camera = {{ 16.0f, 14.0f, 16.0f }, { 0.0f, 0.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f };
+    Camera camera = {{ 16.0f, 14.0f, 16.0f }, { 0.0f, 0.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f, 0 };
 
     Image image = LoadImage("resources/cubicmap.png");      // Load cubicmap image (RAM)
     Texture2D cubicmap = LoadTextureFromImage(image);       // Convert image to texture to display (VRAM)
diff --git a/examples/models/models_geometric_shapes.c b/examples/models/models_geometric_shapes.c
index a13a1f3b..7a1e7e48 100644
--- a/examples/models/models_geometric_shapes.c
+++ b/examples/models/models_geometric_shapes.c
@@ -21,7 +21,12 @@ int main()
     InitWindow(screenWidth, screenHeight, "raylib [models] example - geometric shapes");
 
     // Define the camera to look into our 3d world
-    Camera camera = {{ 0.0f, 10.0f, 10.0f }, { 0.0f, 0.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f };
+    Camera camera = { 0 };
+    camera.position = (Vector3){ 0.0f, 10.0f, 10.0f };
+    camera.target = (Vector3){ 0.0f, 0.0f, 0.0f };
+    camera.up = (Vector3){ 0.0f, 1.0f, 0.0f };
+    camera.fovy = 45.0f;
+    camera.type = CAMERA_PERSPECTIVE;
 
     SetTargetFPS(60);   // Set our game to run at 60 frames-per-second
     //--------------------------------------------------------------------------------------
diff --git a/examples/models/models_heightmap.c b/examples/models/models_heightmap.c
index e476d1b7..55474185 100644
--- a/examples/models/models_heightmap.c
+++ b/examples/models/models_heightmap.c
@@ -21,7 +21,7 @@ int main()
     InitWindow(screenWidth, screenHeight, "raylib [models] example - heightmap loading and drawing");
 
     // Define our custom camera to look into our 3d world
-    Camera camera = {{ 18.0f, 16.0f, 18.0f }, { 0.0f, 0.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f };
+    Camera camera = {{ 18.0f, 16.0f, 18.0f }, { 0.0f, 0.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f, 0 };
 
     Image image = LoadImage("resources/heightmap.png");             // Load heightmap image (RAM)
     Texture2D texture = LoadTextureFromImage(image);                // Convert image to texture (VRAM)
diff --git a/examples/models/models_material_pbr.c b/examples/models/models_material_pbr.c
index 9f576348..4ad2c9e7 100644
--- a/examples/models/models_material_pbr.c
+++ b/examples/models/models_material_pbr.c
@@ -34,7 +34,7 @@ int main()
     InitWindow(screenWidth, screenHeight, "raylib [models] example - pbr material");
 
     // Define the camera to look into our 3d world
-    Camera camera = {{ 4.0f, 4.0f, 4.0f }, { 0.0f, 0.5f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f };
+    Camera camera = {{ 4.0f, 4.0f, 4.0f }, { 0.0f, 0.5f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f, 0 };
 
     // Load model and PBR material
     Model model = LoadModel("resources/pbr/trooper.obj");
@@ -113,7 +113,7 @@ static Material LoadMaterialPBR(Color albedo, float metalness, float roughness)
     mat.shader.locs[LOC_MAP_METALNESS] = GetShaderLocation(mat.shader, "metalness.sampler");
     mat.shader.locs[LOC_MAP_NORMAL] = GetShaderLocation(mat.shader, "normals.sampler");
     mat.shader.locs[LOC_MAP_ROUGHNESS] = GetShaderLocation(mat.shader, "roughness.sampler");
-    mat.shader.locs[LOC_MAP_OCCUSION] = GetShaderLocation(mat.shader, "occlusion.sampler");
+    mat.shader.locs[LOC_MAP_OCCLUSION] = GetShaderLocation(mat.shader, "occlusion.sampler");
     //mat.shader.locs[LOC_MAP_EMISSION] = GetShaderLocation(mat.shader, "emission.sampler");
     //mat.shader.locs[LOC_MAP_HEIGHT] = GetShaderLocation(mat.shader, "height.sampler");
     mat.shader.locs[LOC_MAP_IRRADIANCE] = GetShaderLocation(mat.shader, "irradianceMap");
diff --git a/examples/models/models_mesh_generation.c b/examples/models/models_mesh_generation.c
index 72222156..d9c28ac2 100644
--- a/examples/models/models_mesh_generation.c
+++ b/examples/models/models_mesh_generation.c
@@ -41,7 +41,7 @@ int main()
     for (int i = 0; i < NUM_MODELS; i++) models[i].material.maps[MAP_DIFFUSE].texture = texture;
 
     // Define the camera to look into our 3d world
-    Camera camera = {{ 5.0f, 5.0f, 5.0f }, { 0.0f, 0.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f };
+    Camera camera = {{ 5.0f, 5.0f, 5.0f }, { 0.0f, 0.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f, 0 };
 
     // Model drawing position
     Vector3 position = { 0.0f, 0.0f, 0.0f };
diff --git a/examples/models/models_mesh_picking.c b/examples/models/models_mesh_picking.c
index e150fe92..e09f9860 100644
--- a/examples/models/models_mesh_picking.c
+++ b/examples/models/models_mesh_picking.c
@@ -38,7 +38,7 @@ int main()
     tower.material.maps[MAP_DIFFUSE].texture = texture;         // Set model diffuse texture
     
     Vector3 towerPos = { 0.0f, 0.0f, 0.0f };                    // Set model position
-    BoundingBox towerBBox = CalculateBoundingBox(tower.mesh);    
+    BoundingBox towerBBox = MeshBoundingBox(tower.mesh);        // Get mesh bounding box
     bool hitMeshBBox = false;
     bool hitTriangle = false;
 
@@ -101,8 +101,8 @@ int main()
         {
             hitMeshBBox = true;
             
-            // Check ray collision against mesh
-            meshHitInfo = GetCollisionRayMesh(ray, &tower.mesh);    
+            // Check ray collision against model
+            meshHitInfo = GetCollisionRayModel(ray, &tower);   
             
             if ((meshHitInfo.hit) && (meshHitInfo.distance < nearestHit.distance)) 
             {
diff --git a/examples/models/models_obj_loading.c b/examples/models/models_obj_loading.c
index 70f92168..4f89130f 100644
--- a/examples/models/models_obj_loading.c
+++ b/examples/models/models_obj_loading.c
@@ -21,7 +21,12 @@ int main()
     InitWindow(screenWidth, screenHeight, "raylib [models] example - obj model loading");
 
     // Define the camera to look into our 3d world
-    Camera camera = {{ 3.0f, 3.0f, 3.0f }, { 0.0f, 1.5f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f };
+    Camera camera = { 0 };
+    camera.position = (Vector3){ 3.0f, 3.0f, 3.0f };
+    camera.target = (Vector3){ 0.0f, 1.5f, 0.0f };
+    camera.up = (Vector3){ 0.0f, 1.0f, 0.0f };
+    camera.fovy = 45.0f;
+    camera.type = CAMERA_PERSPECTIVE;
 
     Model dwarf = LoadModel("resources/model/dwarf.obj");                   // Load OBJ model
     Texture2D texture = LoadTexture("resources/model/dwarf_diffuse.png");   // Load model texture
diff --git a/examples/models/models_orthographic_projection.c b/examples/models/models_orthographic_projection.c
new file mode 100644
index 00000000..cb5ea053
--- /dev/null
+++ b/examples/models/models_orthographic_projection.c
@@ -0,0 +1,97 @@
+/*******************************************************************************************
+*
+*   raylib [models] example - Show the difference between perspective and orthographic projection 
+*
+*   This program is heavily based on the geometric objects example
+*
+*   This example has been created using raylib 1.9.7 (www.raylib.com)
+*   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
+*
+*   Copyright (c) 2018 Max Danielsson & Ramon Santamaria (@raysan5)
+*
+********************************************************************************************/
+
+#include "raylib.h"
+
+#define FOVY_PERSPECTIVE    45.0f
+#define WIDTH_ORTHOGRAPHIC  10.0f
+
+int main()
+{
+    // Initialization
+    //--------------------------------------------------------------------------------------
+    int screenWidth = 800;
+    int screenHeight = 450;
+
+    InitWindow(screenWidth, screenHeight, "raylib [models] example - geometric shapes");
+
+    // Define the camera to look into our 3d world
+    Camera camera = {{ 0.0f, 10.0f, 10.0f }, { 0.0f, 0.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, FOVY_PERSPECTIVE, CAMERA_PERSPECTIVE };
+
+    SetTargetFPS(60);   // Set our game to run at 60 frames-per-second
+    //--------------------------------------------------------------------------------------
+
+    // Main game loop
+    while (!WindowShouldClose())    // Detect window close button or ESC key
+    {
+        // Update
+        //----------------------------------------------------------------------------------
+        if (IsKeyPressed(KEY_SPACE)) 
+        {
+            if (camera.type == CAMERA_PERSPECTIVE) 
+            {
+                camera.fovy = WIDTH_ORTHOGRAPHIC;
+                camera.type = CAMERA_ORTHOGRAPHIC;
+            } 
+            else 
+            {
+                camera.fovy = FOVY_PERSPECTIVE;
+                camera.type = CAMERA_PERSPECTIVE;
+            }
+        }
+        //----------------------------------------------------------------------------------
+
+        // Draw
+        //----------------------------------------------------------------------------------
+        BeginDrawing();
+
+            ClearBackground(RAYWHITE);
+
+            Begin3dMode(camera);
+
+                DrawCube((Vector3){-4.0f, 0.0f, 2.0f}, 2.0f, 5.0f, 2.0f, RED);
+                DrawCubeWires((Vector3){-4.0f, 0.0f, 2.0f}, 2.0f, 5.0f, 2.0f, GOLD);
+                DrawCubeWires((Vector3){-4.0f, 0.0f, -2.0f}, 3.0f, 6.0f, 2.0f, MAROON);
+
+                DrawSphere((Vector3){-1.0f, 0.0f, -2.0f}, 1.0f, GREEN);
+                DrawSphereWires((Vector3){1.0f, 0.0f, 2.0f}, 2.0f, 16, 16, LIME);
+
+                DrawCylinder((Vector3){4.0f, 0.0f, -2.0f}, 1.0f, 2.0f, 3.0f, 4, SKYBLUE);
+                DrawCylinderWires((Vector3){4.0f, 0.0f, -2.0f}, 1.0f, 2.0f, 3.0f, 4, DARKBLUE);
+                DrawCylinderWires((Vector3){4.5f, -1.0f, 2.0f}, 1.0f, 1.0f, 2.0f, 6, BROWN);
+
+                DrawCylinder((Vector3){1.0f, 0.0f, -4.0f}, 0.0f, 1.5f, 3.0f, 8, GOLD);
+                DrawCylinderWires((Vector3){1.0f, 0.0f, -4.0f}, 0.0f, 1.5f, 3.0f, 8, PINK);
+
+                DrawGrid(10, 1.0f);        // Draw a grid
+
+            End3dMode();
+
+            DrawText("Press Spacebar to switch camera type", 10, GetScreenHeight() - 30, 20, DARKGRAY);
+
+            if (camera.type == CAMERA_ORTHOGRAPHIC) DrawText("ORTHOGRAPHIC", 10, 40, 20, BLACK);
+            else if (camera.type == CAMERA_PERSPECTIVE) DrawText("PERSPECTIVE", 10, 40, 20, BLACK);
+
+            DrawFPS(10, 10);
+
+        EndDrawing();
+        //----------------------------------------------------------------------------------
+    }
+
+    // De-Initialization
+    //--------------------------------------------------------------------------------------
+    CloseWindow();        // Close window and OpenGL context
+    //--------------------------------------------------------------------------------------
+
+    return 0;
+}
diff --git a/examples/models/models_skybox.c b/examples/models/models_skybox.c
index 46297e41..700824d3 100644
--- a/examples/models/models_skybox.c
+++ b/examples/models/models_skybox.c
@@ -21,7 +21,7 @@ int main()
     InitWindow(screenWidth, screenHeight, "raylib [models] example - skybox loading and drawing");
 
     // Define the camera to look into our 3d world
-    Camera camera = {{ 1.0f, 1.0f, 1.0f }, { 0.0f, 0.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f };
+    Camera camera = {{ 1.0f, 1.0f, 1.0f }, { 0.0f, 0.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f, 0 };
 
     // Load skybox model   
     Mesh cube = GenMeshCube(1.0f, 1.0f, 1.0f);
@@ -62,7 +62,7 @@ int main()
 
             Begin3dMode(camera);
 
-                DrawModel(skybox, Vector3Zero(), 1.0f, WHITE);
+                DrawModel(skybox, (Vector3){0, 0, 0}, 1.0f, WHITE);
                 
                 DrawGrid(10, 1.0f);
 
diff --git a/examples/models/models_yaw_pitch_roll.c b/examples/models/models_yaw_pitch_roll.c
index 2bae2bf8..c559e67b 100644
--- a/examples/models/models_yaw_pitch_roll.c
+++ b/examples/models/models_yaw_pitch_roll.c
@@ -5,7 +5,7 @@
 *   This example has been created using raylib 1.8 (www.raylib.com)
 *   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
 *
-*   Example based on Berni work on Raspberry Pi: 
+*   Example based on Berni work on Raspberry Pi:
 *   http://forum.raylib.com/index.php?p=/discussion/124/line-versus-triangle-drawing-order
 *
 *   Copyright (c) 2017 Ramon Santamaria (@raysan5)
@@ -30,25 +30,26 @@ int main()
 
     InitWindow(screenWidth, screenHeight, "raylib [models] example - plane rotations (yaw, pitch, roll)");
 
-    Texture2D texAngleGauge = LoadTexture("resources/angle_gauge.png"); 
+    Texture2D texAngleGauge = LoadTexture("resources/angle_gauge.png");
     Texture2D texBackground = LoadTexture("resources/background.png");
-    Texture2D texPitch = LoadTexture("resources/pitch.png");   
+    Texture2D texPitch = LoadTexture("resources/pitch.png");
     Texture2D texPlane = LoadTexture("resources/plane.png");
 
     RenderTexture2D framebuffer = LoadRenderTexture(192, 192);
-    
+
     // Model loading
     Model model = LoadModel("resources/plane.obj");      // Load OBJ model
     model.material.maps[MAP_DIFFUSE].texture = LoadTexture("resources/plane_diffuse.png"); // Set map diffuse texture
-    
+
     GenTextureMipmaps(&model.material.maps[MAP_DIFFUSE].texture);
-    
+
     Camera camera = { 0 };
     camera.position = (Vector3){ 0.0f, 60.0f, -120.0f };// Camera position perspective
     camera.target = (Vector3){ 0.0f, 12.0f, 0.0f };     // Camera looking at point
     camera.up = (Vector3){ 0.0f, 1.0f, 0.0f };          // Camera up vector (rotation towards target)
     camera.fovy = 30.0f;                                // Camera field-of-view Y
-    
+    camera.type = CAMERA_PERSPECTIVE;                   // Camera type
+
     float pitch = 0.0f;
     float roll = 0.0f;
     float yaw = 0.0f;
@@ -61,7 +62,7 @@ int main()
     {
         // Update
         //----------------------------------------------------------------------------------
-        
+
         // Plane roll (x-axis) controls
         if (IsKeyDown(KEY_LEFT)) roll += 1.0f;
         else if (IsKeyDown(KEY_RIGHT)) roll -= 1.0f;
@@ -70,7 +71,7 @@ int main()
             if (roll > 0.0f) roll -= 0.5f;
             else if (roll < 0.0f) roll += 0.5f;
         }
-        
+
         // Plane yaw (y-axis) controls
         if (IsKeyDown(KEY_S)) yaw += 1.0f;
         else if (IsKeyDown(KEY_A)) yaw -= 1.0f;
@@ -79,7 +80,7 @@ int main()
             if (yaw > 0.0f) yaw -= 0.5f;
             else if (yaw < 0.0f) yaw += 0.5f;
         }
-        
+
         // Plane pitch (z-axis) controls
         if (IsKeyDown(KEY_DOWN)) pitch += 0.6f;
         else if (IsKeyDown(KEY_UP)) pitch -= 0.6f;
@@ -88,7 +89,7 @@ int main()
             if (pitch > 0.3f) pitch -= 0.3f;
             else if (pitch < -0.3f) pitch += 0.3f;
         }
-        
+
         // Wraps the phase of an angle to fit between -180 and +180 degrees
         int pitchOffset = pitch;
         while (pitchOffset > 180) pitchOffset -= 360;
@@ -96,20 +97,20 @@ int main()
         pitchOffset *= 10;
 
         Matrix transform = MatrixIdentity();
-    
+
         transform = MatrixMultiply(transform, MatrixRotateZ(DEG2RAD*roll));
         transform = MatrixMultiply(transform, MatrixRotateX(DEG2RAD*pitch));
         transform = MatrixMultiply(transform, MatrixRotateY(DEG2RAD*yaw));
-        
+
         model.transform = transform;
         //----------------------------------------------------------------------------------
 
         // Draw
         //----------------------------------------------------------------------------------
         BeginDrawing();
-        
+
             ClearBackground(RAYWHITE);
-        
+
             // Draw framebuffer texture (Ahrs Display)
             int centerX = framebuffer.texture.width/2;
             int centerY = framebuffer.texture.height/2;
@@ -119,18 +120,18 @@ int main()
 
                 BeginBlendMode(BLEND_ALPHA);
 
-                DrawTexturePro(texBackground, (Rectangle){0,0,texBackground.width, texBackground.height},
+                DrawTexturePro(texBackground, (Rectangle){ 0, 0, texBackground.width, texBackground.height },
                                (Rectangle){ centerX, centerY, texBackground.width*scaleFactor, texBackground.height*scaleFactor},
-                               (Vector2){texBackground.width/2*scaleFactor, texBackground.height/2*scaleFactor + pitchOffset*scaleFactor}, roll, WHITE);
+                               (Vector2){ texBackground.width/2*scaleFactor, texBackground.height/2*scaleFactor + pitchOffset*scaleFactor }, roll, WHITE);
 
                 DrawTexturePro(texPitch, (Rectangle){ 0, 0, texPitch.width, texPitch.height },
                                (Rectangle){ centerX, centerY, texPitch.width*scaleFactor, texPitch.height*scaleFactor },
                                (Vector2){ texPitch.width/2*scaleFactor, texPitch.height/2*scaleFactor + pitchOffset*scaleFactor }, roll, WHITE);
-            
-                DrawTexturePro(texPlane, (Rectangle){0,0,texPlane.width, texPlane.height },
-                               (Rectangle){ centerX, centerY, texPlane.width*scaleFactor, texPlane.height*scaleFactor }, 
-                               (Vector2){texPlane.width/2*scaleFactor, texPlane.height/2*scaleFactor }, 0, WHITE);
-                                
+
+                DrawTexturePro(texPlane, (Rectangle){ 0, 0, texPlane.width, texPlane.height },
+                               (Rectangle){ centerX, centerY, texPlane.width*scaleFactor, texPlane.height*scaleFactor },
+                               (Vector2){ texPlane.width/2*scaleFactor, texPlane.height/2*scaleFactor }, 0, WHITE);
+
                 EndBlendMode();
 
             EndTextureMode();
@@ -144,10 +145,10 @@ int main()
             End3dMode();
 
             // Draw 2D GUI stuff
-            DrawAngleGauge(texAngleGauge, 80, 80, roll, "roll", RED);
-            DrawAngleGauge(texAngleGauge, 190, 80, pitch, "pitch", GREEN);
-            DrawAngleGauge(texAngleGauge, 300, 80, yaw, "yaw", SKYBLUE);
-            
+            DrawAngleGauge(texAngleGauge, 80, 70, roll, "roll", RED);
+            DrawAngleGauge(texAngleGauge, 190, 70, pitch, "pitch", GREEN);
+            DrawAngleGauge(texAngleGauge, 300, 70, yaw, "yaw", SKYBLUE);
+
             DrawRectangle(30, 360, 260, 70, Fade(SKYBLUE, 0.5f));
             DrawRectangleLines(30, 360, 260, 70, Fade(DARKBLUE, 0.5f));
             DrawText("Pitch controlled with: KEY_UP / KEY_DOWN", 40, 370, 10, DARKGRAY);
@@ -155,31 +156,31 @@ int main()
             DrawText("Yaw controlled with: KEY_A / KEY_S", 40, 410, 10, DARKGRAY);
 
             // Draw framebuffer texture
-            DrawTextureRec(framebuffer.texture, (Rectangle){ 0, 0, framebuffer.texture.width, -framebuffer.texture.height }, 
+            DrawTextureRec(framebuffer.texture, (Rectangle){ 0, 0, framebuffer.texture.width, -framebuffer.texture.height },
                            (Vector2){ screenWidth - framebuffer.texture.width - 20, 20 }, Fade(WHITE, 0.8f));
-            
+
             DrawRectangleLines(screenWidth - framebuffer.texture.width - 20, 20, framebuffer.texture.width, framebuffer.texture.height, DARKGRAY);
-        
+
         EndDrawing();
         //----------------------------------------------------------------------------------
     }
 
     // De-Initialization
     //--------------------------------------------------------------------------------------
-    
+
     // Unload all loaded data
     UnloadModel(model);
-    
+
     UnloadRenderTexture(framebuffer);
-    
-    UnloadTexture(texAngleGauge); 
+
+    UnloadTexture(texAngleGauge);
     UnloadTexture(texBackground);
-    UnloadTexture(texPitch);  
+    UnloadTexture(texPitch);
     UnloadTexture(texPlane);
-    
+
     CloseWindow();        // Close window and OpenGL context
     //--------------------------------------------------------------------------------------
-    
+
     return 0;
 }
 
@@ -192,7 +193,7 @@ void DrawAngleGauge(Texture2D angleGauge, int x, int y, float angle, char title[
     int textSize = 20;
 
     DrawTexturePro(angleGauge, srcRec, dstRec, origin, angle, color);
-  
-    DrawText(FormatText("%5.1f°", angle), x - MeasureText(FormatText("%5.1f°", angle), textSize) / 2, y + 10, textSize, DARKGRAY); 
-    DrawText(title, x - MeasureText(title, textSize) / 2, y + 60, textSize, DARKGRAY);  
-}
\ No newline at end of file
+
+    DrawText(FormatText("%5.1f", angle), x - MeasureText(FormatText("%5.1f", angle), textSize) / 2, y + 10, textSize, DARKGRAY);
+    DrawText(title, x - MeasureText(title, textSize) / 2, y + 60, textSize, DARKGRAY);
+}
diff --git a/examples/models/resources/angle_gauge.png b/examples/models/resources/angle_gauge.png
index 120f3601..f7871de6 100644
--- a/examples/models/resources/angle_gauge.png
+++ b/examples/models/resources/angle_gauge.png
diff --git a/examples/models/resources/plane.png b/examples/models/resources/plane.png
index 9f28ddb0..58951ea3 100644
--- a/examples/models/resources/plane.png
+++ b/examples/models/resources/plane.png
diff --git a/examples/models/resources/shaders/pbr.vs b/examples/models/resources/shaders/pbr.vs
index e852ac1a..885cb199 100644
--- a/examples/models/resources/shaders/pbr.vs
+++ b/examples/models/resources/shaders/pbr.vs
@@ -12,7 +12,7 @@
 in vec3 vertexPosition;
 in vec2 vertexTexCoord;
 in vec3 vertexNormal;
-in vec3 vertexTangent;
+in vec4 vertexTangent;
 
 // Input uniform values
 uniform mat4 mvp;
@@ -28,7 +28,7 @@ out vec3 fragBinormal;
 void main()
 {
     // Calculate binormal from vertex normal and tangent
-    vec3 vertexBinormal = cross(vertexNormal, vertexTangent);
+    vec3 vertexBinormal = cross(vertexNormal, vec3(vertexTangent));
 
     // Calculate fragment normal based on normal transformations
     mat3 normalMatrix = transpose(inverse(mat3(mMatrix)));
@@ -39,7 +39,7 @@ void main()
     // Send vertex attributes to fragment shader
     fragTexCoord = vertexTexCoord;
     fragNormal = normalize(normalMatrix*vertexNormal);
-    fragTangent = normalize(normalMatrix*vertexTangent);
+    fragTangent = normalize(normalMatrix*vec3(vertexTangent));
     fragTangent = normalize(fragTangent - dot(fragTangent, fragNormal)*fragNormal);
     fragBinormal = normalize(normalMatrix*vertexBinormal);
     fragBinormal = cross(fragNormal, fragTangent);