Review examples collection -WIP-

WARNING: Examples list has been reviewed but examples haven't been recompiled yet... that's not trivial...

14 files changed, 732 insertions, 70 deletions

diff --git a/examples/src/models/models_animation.c b/examples/src/models/models_animation.c
new file mode 100644
index 0000000..a75241b
--- /dev/null
+++ b/examples/src/models/models_animation.c
@@ -0,0 +1,101 @@
+/*******************************************************************************************
+*
+*   raylib [models] example - Load 3d model with animations and play them
+*
+*   This example has been created using raylib 2.5 (www.raylib.com)
+*   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
+*
+*   Copyright (c) 2019 Ramon Santamaria (@raysan5) and @culacant
+*
+********************************************************************************************/
+
+#include "raylib.h"
+
+int main()
+{
+    // Initialization
+    //--------------------------------------------------------------------------------------
+    int screenWidth = 800;
+    int screenHeight = 450;
+
+    InitWindow(screenWidth, screenHeight, "raylib [models] example - model animation");
+
+    // Define the camera to look into our 3d world
+    Camera camera = { 0 };
+    camera.position = (Vector3){ 10.0f, 10.0f, 10.0f }; // Camera position
+    camera.target = (Vector3){ 0.0f, 0.0f, 0.0f };      // Camera looking at point
+    camera.up = (Vector3){ 0.0f, 1.0f, 0.0f };          // Camera up vector (rotation towards target)
+    camera.fovy = 45.0f;                                // Camera field-of-view Y
+    camera.type = CAMERA_PERSPECTIVE;                   // Camera mode type
+
+
+    Model model = LoadModel("resources/guy/guy.iqm");               // Load the animated model mesh and basic data
+    Texture2D texture = LoadTexture("resources/guy/guytex.png");    // Load model texture and set material
+    SetMaterialTexture(&model.materials[0], MAP_DIFFUSE, texture);  // Set model material map texture
+    
+    Vector3 position = { 0.0f, 0.0f, 0.0f };            // Set model position
+
+    // Load animation data
+    int animsCount = 0;
+    ModelAnimation *anims = LoadModelAnimations("resources/guy/guyanim.iqm", &animsCount);
+    int animFrameCounter = 0;
+
+    SetCameraMode(camera, CAMERA_FREE); // Set free camera mode
+
+    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
+        //----------------------------------------------------------------------------------
+        UpdateCamera(&camera);
+
+        // Play animation when spacebar is held down
+        if (IsKeyDown(KEY_SPACE))
+        {
+            animFrameCounter++;
+            UpdateModelAnimation(model, anims[0], animFrameCounter);
+            if (animFrameCounter >= anims[0].frameCount) animFrameCounter = 0;
+        }
+        //----------------------------------------------------------------------------------
+
+        // Draw
+        //----------------------------------------------------------------------------------
+        BeginDrawing();
+
+            ClearBackground(RAYWHITE);
+
+            BeginMode3D(camera);
+
+                DrawModelEx(model, position, (Vector3){ 1.0f, 0.0f, 0.0f }, -90.0f, (Vector3){ 1.0f, 1.0f, 1.0f }, WHITE);
+
+                for (int i = 0; i < model.boneCount; i++)
+                {
+                    DrawCube(anims[0].framePoses[animFrameCounter][i].translation, 0.2f, 0.2f, 0.2f, RED);
+                }
+
+                DrawGrid(10, 1.0f);         // Draw a grid
+
+            EndMode3D();
+
+            DrawText("PRESS SPACE to PLAY MODEL ANIMATION", 10, 10, 20, MAROON);
+            DrawText("(c) Guy IQM 3D model by @culacant", screenWidth - 200, screenHeight - 20, 10, GRAY);
+
+        EndDrawing();
+        //----------------------------------------------------------------------------------
+    }
+
+    // De-Initialization
+    //--------------------------------------------------------------------------------------
+    // Unload model animations data
+    for (int i = 0; i < animsCount; i++) UnloadModelAnimation(anims[i]);
+    
+    UnloadModel(model);         // Unload model
+
+    CloseWindow();              // Close window and OpenGL context
+    //--------------------------------------------------------------------------------------
+
+    return 0;
+}
diff --git a/examples/src/models/models_billboard.c b/examples/src/models/models_billboard.c
index 8ce6a44..5965571 100644
--- a/examples/src/models/models_billboard.c
+++ b/examples/src/models/models_billboard.c
@@ -28,7 +28,6 @@ int main()
     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
     
@@ -52,11 +51,11 @@ int main()
             ClearBackground(RAYWHITE);
 
             BeginMode3D(camera);
-            
-                DrawBillboard(camera, bill, billPosition, 2.0f, WHITE);
                 
                 DrawGrid(10, 1.0f);        // Draw a grid
-
+                
+                DrawBillboard(camera, bill, billPosition, 2.0f, WHITE);
+                
             EndMode3D();
 
             DrawFPS(10, 10);
diff --git a/examples/src/models/models_cubicmap.c b/examples/src/models/models_cubicmap.c
index c8d62c4..ac24188 100644
--- a/examples/src/models/models_cubicmap.c
+++ b/examples/src/models/models_cubicmap.c
@@ -31,7 +31,7 @@ int main()
     
     // NOTE: By default each cube is mapped to one part of texture atlas
     Texture2D texture = LoadTexture("resources/cubicmap_atlas.png");    // Load map texture
-    model.material.maps[MAP_DIFFUSE].texture = texture;                 // Set map diffuse texture
+    model.materials[0].maps[MAP_DIFFUSE].texture = texture;             // Set map diffuse texture
     
     Vector3 mapPosition = { -16.0f, 0.0f, -8.0f };          // Set model position
 
diff --git a/examples/src/models/models_first_person_maze.c b/examples/src/models/models_first_person_maze.c
new file mode 100644
index 0000000..093334b
--- /dev/null
+++ b/examples/src/models/models_first_person_maze.c
@@ -0,0 +1,126 @@
+/*******************************************************************************************
+*
+*   raylib [models] example - first person maze
+*
+*   This example has been created using raylib 2.5 (www.raylib.com)
+*   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
+*
+*   Copyright (c) 2019 Ramon Santamaria (@raysan5)
+*
+********************************************************************************************/
+
+#include "raylib.h"
+
+#include <stdlib.h>           // Required for: free()
+
+int main()
+{
+    // Initialization
+    //--------------------------------------------------------------------------------------
+    int screenWidth = 800;
+    int screenHeight = 450;
+
+    InitWindow(screenWidth, screenHeight, "raylib [models] example - first person maze");
+
+    // Define the camera to look into our 3d world
+    Camera camera = {{ 0.2f, 0.4f, 0.2f }, { 0.0f, 0.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f, 0 };
+
+    Image imMap = LoadImage("resources/cubicmap.png");      // Load cubicmap image (RAM)
+    Texture2D cubicmap = LoadTextureFromImage(imMap);       // Convert image to texture to display (VRAM)
+    Mesh mesh = GenMeshCubicmap(imMap, (Vector3){ 1.0f, 1.0f, 1.0f });
+    Model model = LoadModelFromMesh(mesh);
+    
+    // NOTE: By default each cube is mapped to one part of texture atlas
+    Texture2D texture = LoadTexture("resources/cubicmap_atlas.png");    // Load map texture
+    model.materials[0].maps[MAP_DIFFUSE].texture = texture;             // Set map diffuse texture
+    
+    // Get map image data to be used for collision detection
+    Color *mapPixels = GetImageData(imMap);
+    UnloadImage(imMap);             // Unload image from RAM
+    
+    Vector3 mapPosition = { -16.0f, 0.0f, -8.0f };  // Set model position
+    Vector3 playerPosition = camera.position;       // Set player position
+    
+    SetCameraMode(camera, CAMERA_FIRST_PERSON);     // Set camera mode
+
+    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
+        //----------------------------------------------------------------------------------
+        Vector3 oldCamPos = camera.position;    // Store old camera position
+        
+        UpdateCamera(&camera);      // Update camera
+        
+        // Check player collision (we simplify to 2D collision detection)
+        Vector2 playerPos = { camera.position.x, camera.position.z };
+        float playerRadius = 0.1f;  // Collision radius (player is modelled as a cilinder for collision)
+        
+        int playerCellX = (int)(playerPos.x - mapPosition.x + 0.5f);
+        int playerCellY = (int)(playerPos.y - mapPosition.z + 0.5f);
+        
+        // Out-of-limits security check
+        if (playerCellX < 0) playerCellX = 0;
+        else if (playerCellX >= cubicmap.width) playerCellX = cubicmap.width - 1;
+        
+        if (playerCellY < 0) playerCellY = 0;
+        else if (playerCellY >= cubicmap.height) playerCellY = cubicmap.height - 1;
+        
+        // Check map collisions using image data and player position
+        // TODO: Improvement: Just check player surrounding cells for collision
+        for (int y = 0; y < cubicmap.height; y++)
+        {
+            for (int x = 0; x < cubicmap.width; x++)
+            {
+                if ((mapPixels[y*cubicmap.width + x].r == 255) &&       // Collision: white pixel, only check R channel
+                    (CheckCollisionCircleRec(playerPos, playerRadius, 
+                    (Rectangle){ mapPosition.x - 0.5f + x*1.0f, mapPosition.z - 0.5f + y*1.0f, 1.0f, 1.0f })))
+                {
+                    // Collision detected, reset camera position
+                    camera.position = oldCamPos;
+                }
+            }
+        }
+        //----------------------------------------------------------------------------------
+
+        // Draw
+        //----------------------------------------------------------------------------------
+        BeginDrawing();
+
+            ClearBackground(RAYWHITE);
+
+            BeginMode3D(camera);
+
+                DrawModel(model, mapPosition, 1.0f, WHITE);                     // Draw maze map
+                //DrawCubeV(playerPosition, (Vector3){ 0.2f, 0.4f, 0.2f }, RED);  // Draw player
+
+            EndMode3D();
+            
+            DrawTextureEx(cubicmap, (Vector2){ GetScreenWidth() - cubicmap.width*4 - 20, 20 }, 0.0f, 4.0f, WHITE);
+            DrawRectangleLines(GetScreenWidth() - cubicmap.width*4 - 20, 20, cubicmap.width*4, cubicmap.height*4, GREEN);
+            
+            // Draw player position radar
+            DrawRectangle(GetScreenWidth() - cubicmap.width*4 - 20 + playerCellX*4, 20 + playerCellY*4, 4, 4, RED);
+
+            DrawFPS(10, 10);
+
+        EndDrawing();
+        //----------------------------------------------------------------------------------
+    }
+
+    // De-Initialization
+    //--------------------------------------------------------------------------------------
+    free(mapPixels);            // Unload color array
+    
+    UnloadTexture(cubicmap);    // Unload cubicmap texture
+    UnloadTexture(texture);     // Unload map texture
+    UnloadModel(model);         // Unload map model
+
+    CloseWindow();              // Close window and OpenGL context
+    //--------------------------------------------------------------------------------------
+
+    return 0;
+}
diff --git a/examples/src/models/models_heightmap.c b/examples/src/models/models_heightmap.c
index d131b12..e0475f1 100644
--- a/examples/src/models/models_heightmap.c
+++ b/examples/src/models/models_heightmap.c
@@ -29,7 +29,7 @@ int main()
     Mesh mesh = GenMeshHeightmap(image, (Vector3){ 16, 8, 16 });    // Generate heightmap mesh (RAM and VRAM)
     Model model = LoadModelFromMesh(mesh);                          // Load model from generated mesh
 
-    model.material.maps[MAP_DIFFUSE].texture = texture;             // Set map diffuse texture
+    model.materials[0].maps[MAP_DIFFUSE].texture = texture;         // Set map diffuse texture
     Vector3 mapPosition = { -8.0f, 0.0f, -8.0f };                   // Define model position
 
     UnloadImage(image);                     // Unload heightmap image from RAM, already uploaded to VRAM
diff --git a/examples/src/models/models_material_pbr.c b/examples/src/models/models_material_pbr.c
index 9f57634..5c308cf 100644
--- a/examples/src/models/models_material_pbr.c
+++ b/examples/src/models/models_material_pbr.c
@@ -12,6 +12,8 @@
 #include "raylib.h"
 #include "raymath.h"
 
+#include <stdio.h>
+
 #define RLIGHTS_IMPLEMENTATION
 #include "rlights.h"
 
@@ -34,19 +36,29 @@ 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 = { 0 };
+    camera.position = (Vector3){ 4.0f, 4.0f, 4.0f };    // Camera position
+    camera.target = (Vector3){ 0.0f, 0.5f, 0.0f };      // Camera looking at point
+    camera.up = (Vector3){ 0.0f, 1.0f, 0.0f };          // Camera up vector (rotation towards target)
+    camera.fovy = 45.0f;                                // Camera field-of-view Y
+    camera.type = CAMERA_PERSPECTIVE;                   // Camera mode type
 
     // Load model and PBR material
     Model model = LoadModel("resources/pbr/trooper.obj");
-    model.material = LoadMaterialPBR((Color){ 255, 255, 255, 255 }, 1.0f, 1.0f);
+    
+    // Mesh tangents are generated... and uploaded to GPU
+    // NOTE: New VBO for tangents is generated at default location and also binded to mesh VAO
+    MeshTangents(&model.meshes[0]);
+
+    model.materials[0] = LoadMaterialPBR((Color){ 255, 255, 255, 255 }, 1.0f, 1.0f);
 
     // Define lights attributes
     // NOTE: Shader is passed to every light on creation to define shader bindings internally
     Light lights[MAX_LIGHTS] = { 
-        CreateLight(LIGHT_POINT, (Vector3){ LIGHT_DISTANCE, LIGHT_HEIGHT, 0.0f }, (Vector3){ 0.0f, 0.0f, 0.0f }, (Color){ 255, 0, 0, 255 }, model.material.shader),
-        CreateLight(LIGHT_POINT, (Vector3){ 0.0f, LIGHT_HEIGHT, LIGHT_DISTANCE }, (Vector3){ 0.0f, 0.0f, 0.0f }, (Color){ 0, 255, 0, 255 }, model.material.shader),
-        CreateLight(LIGHT_POINT, (Vector3){ -LIGHT_DISTANCE, LIGHT_HEIGHT, 0.0f }, (Vector3){ 0.0f, 0.0f, 0.0f }, (Color){ 0, 0, 255, 255 }, model.material.shader),
-        CreateLight(LIGHT_DIRECTIONAL, (Vector3){ 0.0f, LIGHT_HEIGHT*2.0f, -LIGHT_DISTANCE }, (Vector3){ 0.0f, 0.0f, 0.0f }, (Color){ 255, 0, 255, 255 }, model.material.shader) 
+        CreateLight(LIGHT_POINT, (Vector3){ LIGHT_DISTANCE, LIGHT_HEIGHT, 0.0f }, (Vector3){ 0.0f, 0.0f, 0.0f }, (Color){ 255, 0, 0, 255 }, model.materials[0].shader),
+        CreateLight(LIGHT_POINT, (Vector3){ 0.0f, LIGHT_HEIGHT, LIGHT_DISTANCE }, (Vector3){ 0.0f, 0.0f, 0.0f }, (Color){ 0, 255, 0, 255 }, model.materials[0].shader),
+        CreateLight(LIGHT_POINT, (Vector3){ -LIGHT_DISTANCE, LIGHT_HEIGHT, 0.0f }, (Vector3){ 0.0f, 0.0f, 0.0f }, (Color){ 0, 0, 255, 255 }, model.materials[0].shader),
+        CreateLight(LIGHT_DIRECTIONAL, (Vector3){ 0.0f, LIGHT_HEIGHT*2.0f, -LIGHT_DISTANCE }, (Vector3){ 0.0f, 0.0f, 0.0f }, (Color){ 255, 0, 255, 255 }, model.materials[0].shader) 
     };
     
     SetCameraMode(camera, CAMERA_ORBITAL);  // Set an orbital camera mode
@@ -63,7 +75,7 @@ int main()
         
         // Send to material PBR shader camera view position
         float cameraPos[3] = { camera.position.x, camera.position.y, camera.position.z };
-        SetShaderValue(model.material.shader, model.material.shader.locs[LOC_VECTOR_VIEW], cameraPos, 3);
+        SetShaderValue(model.materials[0].shader, model.materials[0].shader.locs[LOC_VECTOR_VIEW], cameraPos, UNIFORM_VEC3);
         //----------------------------------------------------------------------------------
 
         // Draw
@@ -72,13 +84,13 @@ int main()
 
             ClearBackground(RAYWHITE);
 
-            Begin3dMode(camera);
+            BeginMode3D(camera);
 
                 DrawModel(model, Vector3Zero(), 1.0f, WHITE);
                 
                 DrawGrid(10, 1.0f);
 
-            End3dMode();
+            EndMode3D();
 
             DrawFPS(10, 10);
 
@@ -113,7 +125,7 @@ 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");
@@ -121,7 +133,7 @@ static Material LoadMaterialPBR(Color albedo, float metalness, float roughness)
     mat.shader.locs[LOC_MAP_BRDF] = GetShaderLocation(mat.shader, "brdfLUT");
 
     // Set view matrix location
-    mat.shader.locs[LOC_MATRIX_MODEL] = GetShaderLocation(mat.shader, "mMatrix");
+    mat.shader.locs[LOC_MATRIX_MODEL] = GetShaderLocation(mat.shader, "matModel");
     mat.shader.locs[LOC_MATRIX_VIEW] = GetShaderLocation(mat.shader, "view");
     mat.shader.locs[LOC_VECTOR_VIEW] = GetShaderLocation(mat.shader, "viewPos");
     
@@ -142,20 +154,24 @@ static Material LoadMaterialPBR(Color albedo, float metalness, float roughness)
     #define     PATH_BRDF_FS            "resources/shaders/brdf.fs"     // Path to bidirectional reflectance distribution function fragment shader
     
     Shader shdrCubemap = LoadShader(PATH_CUBEMAP_VS, PATH_CUBEMAP_FS);
+    printf("Loaded shader: cubemap\n");
     Shader shdrIrradiance = LoadShader(PATH_SKYBOX_VS, PATH_IRRADIANCE_FS);
+    printf("Loaded shader: irradiance\n");
     Shader shdrPrefilter = LoadShader(PATH_SKYBOX_VS, PATH_PREFILTER_FS);
+    printf("Loaded shader: prefilter\n");
     Shader shdrBRDF = LoadShader(PATH_BRDF_VS, PATH_BRDF_FS);
+    printf("Loaded shader: brdf\n");
     
     // Setup required shader locations
-    SetShaderValuei(shdrCubemap, GetShaderLocation(shdrCubemap, "equirectangularMap"), (int[1]){ 0 }, 1);
-    SetShaderValuei(shdrIrradiance, GetShaderLocation(shdrIrradiance, "environmentMap"), (int[1]){ 0 }, 1);
-    SetShaderValuei(shdrPrefilter, GetShaderLocation(shdrPrefilter, "environmentMap"), (int[1]){ 0 }, 1);
+    SetShaderValue(shdrCubemap, GetShaderLocation(shdrCubemap, "equirectangularMap"), (int[1]){ 0 }, UNIFORM_INT);
+    SetShaderValue(shdrIrradiance, GetShaderLocation(shdrIrradiance, "environmentMap"), (int[1]){ 0 }, UNIFORM_INT);
+    SetShaderValue(shdrPrefilter, GetShaderLocation(shdrPrefilter, "environmentMap"), (int[1]){ 0 }, UNIFORM_INT);
 
-    Texture2D texHDR = LoadTexture("resources/pinetree.hdr");
+    Texture2D texHDR = LoadTexture("resources/dresden_square.hdr");
     Texture2D cubemap = GenTextureCubemap(shdrCubemap, texHDR, CUBEMAP_SIZE);
     mat.maps[MAP_IRRADIANCE].texture = GenTextureIrradiance(shdrIrradiance, cubemap, IRRADIANCE_SIZE);
     mat.maps[MAP_PREFILTER].texture = GenTexturePrefilter(shdrPrefilter, cubemap, PREFILTERED_SIZE);
-    mat.maps[MAP_BRDF].texture = GenTextureBRDF(shdrBRDF, cubemap, BRDF_SIZE);
+    mat.maps[MAP_BRDF].texture = GenTextureBRDF(shdrBRDF, BRDF_SIZE);
     UnloadTexture(cubemap);
     UnloadTexture(texHDR);
     
@@ -173,14 +189,14 @@ static Material LoadMaterialPBR(Color albedo, float metalness, float roughness)
     SetTextureFilter(mat.maps[MAP_OCCLUSION].texture, FILTER_BILINEAR);
     
     // Enable sample usage in shader for assigned textures
-    SetShaderValuei(mat.shader, GetShaderLocation(mat.shader, "albedo.useSampler"), (int[1]){ 1 }, 1);
-    SetShaderValuei(mat.shader, GetShaderLocation(mat.shader, "normals.useSampler"), (int[1]){ 1 }, 1);
-    SetShaderValuei(mat.shader, GetShaderLocation(mat.shader, "metalness.useSampler"), (int[1]){ 1 }, 1);
-    SetShaderValuei(mat.shader, GetShaderLocation(mat.shader, "roughness.useSampler"), (int[1]){ 1 }, 1);
-    SetShaderValuei(mat.shader, GetShaderLocation(mat.shader, "occlusion.useSampler"), (int[1]){ 1 }, 1);
+    SetShaderValue(mat.shader, GetShaderLocation(mat.shader, "albedo.useSampler"), (int[1]){ 1 }, UNIFORM_INT);
+    SetShaderValue(mat.shader, GetShaderLocation(mat.shader, "normals.useSampler"), (int[1]){ 1 }, UNIFORM_INT);
+    SetShaderValue(mat.shader, GetShaderLocation(mat.shader, "metalness.useSampler"), (int[1]){ 1 }, UNIFORM_INT);
+    SetShaderValue(mat.shader, GetShaderLocation(mat.shader, "roughness.useSampler"), (int[1]){ 1 }, UNIFORM_INT);
+    SetShaderValue(mat.shader, GetShaderLocation(mat.shader, "occlusion.useSampler"), (int[1]){ 1 }, UNIFORM_INT);
     
     int renderModeLoc = GetShaderLocation(mat.shader, "renderMode");
-    SetShaderValuei(mat.shader, renderModeLoc, (int[1]){ 0 }, 1);
+    SetShaderValue(mat.shader, renderModeLoc, (int[1]){ 0 }, UNIFORM_INT);
 
     // Set up material properties color
     mat.maps[MAP_ALBEDO].color = albedo;
@@ -192,4 +208,4 @@ static Material LoadMaterialPBR(Color albedo, float metalness, float roughness)
     mat.maps[MAP_HEIGHT].value = 0.5f;
 
     return mat;
-}
\ No newline at end of file
+}
diff --git a/examples/src/models/models_mesh_generation.c b/examples/src/models/models_mesh_generation.c
index c02bd91..2b4b75a 100644
--- a/examples/src/models/models_mesh_generation.c
+++ b/examples/src/models/models_mesh_generation.c
@@ -11,7 +11,7 @@
 
 #include "raylib.h"
 
-#define NUM_MODELS  7      // We generate 7 parametric 3d shapes
+#define NUM_MODELS  8      // We generate 8 parametric 3d shapes
 
 int main()
 {
@@ -36,9 +36,10 @@ int main()
     models[4] = LoadModelFromMesh(GenMeshCylinder(1, 2, 16));
     models[5] = LoadModelFromMesh(GenMeshTorus(0.25f, 4.0f, 16, 32));
     models[6] = LoadModelFromMesh(GenMeshKnot(1.0f, 2.0f, 16, 128));
+    models[7] = LoadModelFromMesh(GenMeshPoly(5, 2.0f));
     
     // Set checked texture as default diffuse component for all models material
-    for (int i = 0; i < NUM_MODELS; i++) models[i].material.maps[MAP_DIFFUSE].texture = texture;
+    for (int i = 0; i < NUM_MODELS; i++) models[i].materials[0].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, 0 };
@@ -64,6 +65,17 @@ int main()
         {
             currentModel = (currentModel + 1)%NUM_MODELS; // Cycle between the textures
         }
+        
+        if (IsKeyPressed(KEY_RIGHT))
+        { 
+            currentModel++;
+            if (currentModel >= NUM_MODELS) currentModel = 0;
+        }
+        else if (IsKeyPressed(KEY_LEFT))
+        {
+            currentModel--;
+            if (currentModel < 0) currentModel = NUM_MODELS - 1;
+        }
         //----------------------------------------------------------------------------------
 
         // Draw
@@ -93,6 +105,7 @@ int main()
                 case 4: DrawText("CYLINDER", 680, 10, 20, DARKBLUE); break;
                 case 5: DrawText("TORUS", 680, 10, 20, DARKBLUE); break;
                 case 6: DrawText("KNOT", 680, 10, 20, DARKBLUE); break;
+                case 7: DrawText("POLY", 680, 10, 20, DARKBLUE); break;
                 default: break;
             }
 
diff --git a/examples/src/models/models_mesh_picking.c b/examples/src/models/models_mesh_picking.c
index e150fe9..4202882 100644
--- a/examples/src/models/models_mesh_picking.c
+++ b/examples/src/models/models_mesh_picking.c
@@ -13,7 +13,7 @@
 #include "raylib.h"
 #include "raymath.h"
 
-#define FLT_MAX     3.40282347E+38F     // Maximum value of a float, defined in <float.h>
+#define FLT_MAX     340282346638528859811704183484516925440.0f     // Maximum value of a float, from bit pattern 01111111011111111111111111111111
 
 int main()
 {
@@ -25,20 +25,21 @@ int main()
     InitWindow(screenWidth, screenHeight, "raylib [models] example - mesh picking");
 
     // Define the camera to look into our 3d world
-    Camera camera;
-    camera.position = (Vector3){ 10.0f, 8.0f, 10.0f };  // Camera position
-    camera.target = (Vector3){ 0.0f, 2.3f, 0.0f };      // Camera looking at point
+    Camera camera = { 0 };
+    camera.position = (Vector3){ 20.0f, 20.0f, 20.0f }; // Camera position
+    camera.target = (Vector3){ 0.0f, 8.0f, 0.0f };      // Camera looking at point
     camera.up = (Vector3){ 0.0f, 1.6f, 0.0f };          // Camera up vector (rotation towards target)
     camera.fovy = 45.0f;                                // Camera field-of-view Y
+    camera.type = CAMERA_PERSPECTIVE;                   // Camera mode type
 
-    Ray ray;        // Picking ray
+    Ray ray = { 0 };        // Picking ray
     
-    Model tower = LoadModel("resources/tower.obj");             // Load OBJ model
-    Texture2D texture = LoadTexture("resources/tower.png");     // Load model texture
-    tower.material.maps[MAP_DIFFUSE].texture = texture;         // Set model diffuse texture
+    Model tower = LoadModel("resources/models/turret.obj");                 // Load OBJ model
+    Texture2D texture = LoadTexture("resources/models/turret_diffuse.png"); // Load model texture
+    tower.materials[0].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.meshes[0]);   // Get mesh bounding box
     bool hitMeshBBox = false;
     bool hitTriangle = false;
 
@@ -61,7 +62,7 @@ int main()
         UpdateCamera(&camera);          // Update camera
         
         // Display information about closest hit
-        RayHitInfo nearestHit;
+        RayHitInfo nearestHit = { 0 };
         char *hitObjectName = "None";
         nearestHit.distance = FLT_MAX;
         nearestHit.hit = false;
@@ -94,15 +95,16 @@ int main()
         } 
         else hitTriangle = false;
 
-        RayHitInfo meshHitInfo;
+        RayHitInfo meshHitInfo = { 0 };
 
         // Check ray collision against bounding box first, before trying the full ray-mesh test
         if (CheckCollisionRayBox(ray, towerBBox)) 
         {
             hitMeshBBox = true;
             
-            // Check ray collision against mesh
-            meshHitInfo = GetCollisionRayMesh(ray, &tower.mesh);    
+            // Check ray collision against model
+            // NOTE: It considers model.transform matrix!
+            meshHitInfo = GetCollisionRayModel(ray, &tower);   
             
             if ((meshHitInfo.hit) && (meshHitInfo.distance < nearestHit.distance)) 
             {
@@ -111,7 +113,9 @@ int main()
                 hitObjectName = "Mesh";
             }
             
-        } hitMeshBBox = false; 
+        } 
+        
+        hitMeshBBox = false; 
         //----------------------------------------------------------------------------------
         
         // Draw
@@ -120,10 +124,12 @@ int main()
 
             ClearBackground(RAYWHITE);
 
-            Begin3dMode(camera);
+            BeginMode3D(camera);
 
                 // Draw the tower
-                DrawModel(tower, towerPos, 1.0, WHITE);
+                // WARNING: If scale is different than 1.0f, 
+                // not considered by GetCollisionRayModel()
+                DrawModel(tower, towerPos, 1.0f, WHITE);
                 
                 // Draw the test triangle
                 DrawLine3D(ta, tb, PURPLE);
@@ -149,9 +155,9 @@ int main()
 
                 DrawRay(ray, MAROON);
                 
-                DrawGrid(100, 1.0f);
+                DrawGrid(10, 10.0f);
 
-            End3dMode();
+            EndMode3D();
             
             // Draw some debug GUI text
             DrawText(FormatText("Hit Object: %s", hitObjectName), 10, 50, 10, BLACK);
@@ -176,6 +182,8 @@ int main()
             }
 
             DrawText("Use Mouse to Move Camera", 10, 430, 10, GRAY);
+            
+            DrawText("(c) Turret 3D model by Alberto Cano", screenWidth - 200, screenHeight - 20, 10, GRAY);
 
             DrawFPS(10, 10);
 
diff --git a/examples/src/models/models_obj_loading.c b/examples/src/models/models_obj_loading.c
index 70f9216..74e7d08 100644
--- a/examples/src/models/models_obj_loading.c
+++ b/examples/src/models/models_obj_loading.c
@@ -21,11 +21,16 @@ 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 };
-
-    Model dwarf = LoadModel("resources/model/dwarf.obj");                   // Load OBJ model
-    Texture2D texture = LoadTexture("resources/model/dwarf_diffuse.png");   // Load model texture
-    dwarf.material.maps[MAP_DIFFUSE].texture = texture;                     // Set map diffuse texture
+    Camera camera = { 0 };
+    camera.position = (Vector3){ 8.0f, 8.0f, 8.0f };    // Camera position
+    camera.target = (Vector3){ 0.0f, 2.5f, 0.0f };      // Camera looking at point
+    camera.up = (Vector3){ 0.0f, 1.0f, 0.0f };          // Camera up vector (rotation towards target)
+    camera.fovy = 45.0f;                                // Camera field-of-view Y
+    camera.type = CAMERA_PERSPECTIVE;                   // Camera mode type
+
+    Model model = LoadModel("resources/models/castle.obj");                 // Load OBJ model
+    Texture2D texture = LoadTexture("resources/models/castle_diffuse.png"); // Load model texture
+    model.materials[0].maps[MAP_DIFFUSE].texture = texture;                 // Set map diffuse texture
     Vector3 position = { 0.0f, 0.0f, 0.0f };                                // Set model position
 
     SetTargetFPS(60);   // Set our game to run at 60 frames-per-second
@@ -45,17 +50,17 @@ int main()
 
             ClearBackground(RAYWHITE);
 
-            Begin3dMode(camera);
+            BeginMode3D(camera);
 
-                DrawModel(dwarf, position, 2.0f, WHITE);   // Draw 3d model with texture
+                DrawModel(model, position, 0.2f, WHITE);   // Draw 3d model with texture
 
                 DrawGrid(10, 1.0f);         // Draw a grid
 
                 DrawGizmo(position);        // Draw gizmo
 
-            End3dMode();
-            
-            DrawText("(c) Dwarf 3D model by David Moreno", screenWidth - 200, screenHeight - 20, 10, GRAY);
+            EndMode3D();
+
+            DrawText("(c) Castle 3D model by Alberto Cano", screenWidth - 200, screenHeight - 20, 10, GRAY);
 
             DrawFPS(10, 10);
 
@@ -66,7 +71,7 @@ int main()
     // De-Initialization
     //--------------------------------------------------------------------------------------
     UnloadTexture(texture);     // Unload texture
-    UnloadModel(dwarf);         // Unload model
+    UnloadModel(model);         // Unload model
 
     CloseWindow();              // Close window and OpenGL context
     //--------------------------------------------------------------------------------------
diff --git a/examples/src/models/models_obj_viewer.c b/examples/src/models/models_obj_viewer.c
new file mode 100644
index 0000000..7d38744
--- /dev/null
+++ b/examples/src/models/models_obj_viewer.c
@@ -0,0 +1,127 @@
+/*******************************************************************************************
+*
+*   raylib [models] example - OBJ models viewer
+*
+*   This example has been created using raylib 2.0 (www.raylib.com)
+*   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
+*
+*   Copyright (c) 2014-2019 Ramon Santamaria (@raysan5)
+*
+********************************************************************************************/
+
+#include "raylib.h"
+
+#include <string.h>        // Required for: strcpy()
+
+int main()
+{
+    // Initialization
+    //--------------------------------------------------------------------------------------
+    int screenWidth = 800;
+    int screenHeight = 450;
+
+    InitWindow(screenWidth, screenHeight, "raylib example - obj viewer");
+
+    // Define the camera to look into our 3d world
+    Camera camera = {{ 30.0f, 30.0f, 30.0f }, { 0.0f, 10.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f, 0 };
+
+    Model model = LoadModel("resources/models/turret.obj");                     // Load default model obj
+    Texture2D texture = LoadTexture("resources/models/turret_diffuse.png");     // Load default model texture
+    model.materials[0].maps[MAP_DIFFUSE].texture = texture; // Bind texture to model
+
+    Vector3 position = { 0.0, 0.0, 0.0 };                   // Set model position
+    BoundingBox bounds = MeshBoundingBox(model.meshes[0]);  // Set model bounds
+    bool selected = false;                                  // Selected object flag
+
+    SetCameraMode(camera, CAMERA_FREE);     // Set a free camera mode
+
+    char objFilename[64] = "turret.obj";
+
+    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 (IsFileDropped())
+        {
+            int count = 0;
+            char **droppedFiles = GetDroppedFiles(&count);
+
+            if (count == 1)
+            {
+                if (IsFileExtension(droppedFiles[0], ".obj"))
+                {
+                    for (int i = 0; i < model.meshCount; i++) UnloadMesh(&model.meshes[i]);
+                    model.meshes = LoadMeshes(droppedFiles[0], &model.meshCount);
+                    bounds = MeshBoundingBox(model.meshes[0]);
+                }
+                else if (IsFileExtension(droppedFiles[0], ".png"))
+                {
+                    UnloadTexture(texture);
+                    texture = LoadTexture(droppedFiles[0]);
+                    model.materials[0].maps[MAP_DIFFUSE].texture = texture;
+                }
+
+                strcpy(objFilename, GetFileName(droppedFiles[0]));
+            }
+
+            ClearDroppedFiles();    // Clear internal buffers
+        }
+
+        UpdateCamera(&camera);
+
+        // Select model on mouse click
+        if (IsMouseButtonPressed(MOUSE_LEFT_BUTTON))
+        {
+            // Check collision between ray and box
+            if (CheckCollisionRayBox(GetMouseRay(GetMousePosition(), camera), bounds)) selected = !selected;
+            else selected = false;
+        }
+        //----------------------------------------------------------------------------------
+
+        // Draw
+        //----------------------------------------------------------------------------------
+        BeginDrawing();
+
+            ClearBackground(RAYWHITE);
+
+            BeginMode3D(camera);
+
+                DrawModel(model, position, 1.0f, WHITE);   // Draw 3d model with texture
+
+                DrawGrid(20.0, 10.0);        // Draw a grid
+
+                if (selected) DrawBoundingBox(bounds, GREEN);
+
+            EndMode3D();
+
+            DrawText("Free camera default controls:", 10, 20, 10, DARKGRAY);
+            DrawText("- Mouse Wheel to Zoom in-out", 20, 40, 10, GRAY);
+            DrawText("- Mouse Wheel Pressed to Pan", 20, 60, 10, GRAY);
+            DrawText("- Alt + Mouse Wheel Pressed to Rotate", 20, 80, 10, GRAY);
+            DrawText("- Alt + Ctrl + Mouse Wheel Pressed for Smooth Zoom", 20, 100, 10, GRAY);
+
+            DrawText("Drag & drop .obj/.png to load mesh/texture.", 10, GetScreenHeight() - 20, 10, DARKGRAY);
+            DrawText(FormatText("Current file: %s", objFilename), 250, GetScreenHeight() - 20, 10, GRAY);
+            if (selected) DrawText("MODEL SELECTED", GetScreenWidth() - 110, 10, 10, GREEN);
+
+            DrawText("(c) Turret 3D model by Alberto Cano", screenWidth - 200, screenHeight - 20, 10, GRAY);
+
+        EndDrawing();
+        //----------------------------------------------------------------------------------
+    }
+
+    // De-Initialization
+    //--------------------------------------------------------------------------------------
+    UnloadModel(model);         // Unload model
+
+    ClearDroppedFiles();        // Clear internal buffers
+
+    CloseWindow();              // Close window and OpenGL context
+    //--------------------------------------------------------------------------------------
+
+    return 0;
+}
\ No newline at end of file
diff --git a/examples/src/models/models_orthographic_projection.c b/examples/src/models/models_orthographic_projection.c
new file mode 100644
index 0000000..3ad32b6
--- /dev/null
+++ b/examples/src/models/models_orthographic_projection.c
@@ -0,0 +1,99 @@
+/*******************************************************************************************
+*
+*   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 2.0 (www.raylib.com)
+*   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
+*
+*   Example contributed by Max Danielsson (@autious) and reviewed by Ramon Santamaria (@raysan5)
+*
+*   Copyright (c) 2018 Max Danielsson (@autious) and 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);
+
+            BeginMode3D(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
+
+            EndMode3D();
+
+            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/src/models/models_rlgl_solar_system.c b/examples/src/models/models_rlgl_solar_system.c
new file mode 100644
index 0000000..7193d6f
--- /dev/null
+++ b/examples/src/models/models_rlgl_solar_system.c
@@ -0,0 +1,168 @@
+/*******************************************************************************************
+*
+*   raylib [models] example - rlgl module usage with push/pop matrix transformations
+*
+*   This example uses [rlgl] module funtionality (pseudo-OpenGL 1.1 style coding)
+*
+*   This example has been created using raylib 2.2 (www.raylib.com)
+*   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
+*
+*   Copyright (c) 2018 Ramon Santamaria (@raysan5)
+*
+********************************************************************************************/
+
+#include "raylib.h"
+#include "rlgl.h"
+
+//------------------------------------------------------------------------------------
+// Module Functions Declaration
+//------------------------------------------------------------------------------------
+void DrawSphereBasic(Color color);      // Draw sphere without any matrix transformation
+
+//------------------------------------------------------------------------------------
+// Program main entry point
+//------------------------------------------------------------------------------------
+int main()
+{
+    // Initialization
+    //--------------------------------------------------------------------------------------
+    const int screenWidth = 800;
+    const int screenHeight = 450;
+    
+    const float sunRadius = 4.0f;
+    const float earthRadius = 0.6f;
+    const float earthOrbitRadius = 8.0f;
+    const float moonRadius = 0.16f;
+    const float moonOrbitRadius = 1.5f;
+
+    InitWindow(screenWidth, screenHeight, "raylib [models] example - rlgl module usage with push/pop matrix transformations");
+
+    // Define the camera to look into our 3d world
+    Camera camera = { 0 };
+    camera.position = (Vector3){ 16.0f, 16.0f, 16.0f };
+    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;
+    
+    SetCameraMode(camera, CAMERA_FREE);
+       
+    float rotationSpeed = 0.2f;         // General system rotation speed
+    
+    float earthRotation = 0.0f;         // Rotation of earth around itself (days) in degrees
+    float earthOrbitRotation = 0.0f;    // Rotation of earth around the Sun (years) in degrees
+    float moonRotation = 0.0f;          // Rotation of moon around itself
+    float moonOrbitRotation = 0.0f;     // Rotation of moon around earth in degrees
+
+    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
+        //----------------------------------------------------------------------------------
+        UpdateCamera(&camera);
+        
+        earthRotation += (5.0f*rotationSpeed);
+        earthOrbitRotation += (365/360.0f*(5.0f*rotationSpeed)*rotationSpeed);
+        moonRotation += (2.0f*rotationSpeed);
+        moonOrbitRotation += (8.0f*rotationSpeed);
+        //----------------------------------------------------------------------------------
+
+        // Draw
+        //----------------------------------------------------------------------------------
+        BeginDrawing();
+
+            ClearBackground(RAYWHITE);
+
+            BeginMode3D(camera);
+            
+                rlPushMatrix();
+                    rlScalef(sunRadius, sunRadius, sunRadius);          // Scale Sun
+                    DrawSphereBasic(GOLD);                              // Draw the Sun
+                rlPopMatrix();
+                
+                rlPushMatrix();
+                    rlRotatef(earthOrbitRotation, 0.0f, 1.0f, 0.0f);    // Rotation for Earth orbit around Sun
+                    rlTranslatef(earthOrbitRadius, 0.0f, 0.0f);         // Translation for Earth orbit
+                    rlRotatef(-earthOrbitRotation, 0.0f, 1.0f, 0.0f);   // Rotation for Earth orbit around Sun inverted
+
+                    rlPushMatrix();
+                        rlRotatef(earthRotation, 0.25, 1.0, 0.0);       // Rotation for Earth itself
+                        rlScalef(earthRadius, earthRadius, earthRadius);// Scale Earth
+                        
+                        DrawSphereBasic(BLUE);                          // Draw the Earth
+                    rlPopMatrix();
+                    
+                    rlRotatef(moonOrbitRotation, 0.0f, 1.0f, 0.0f);     // Rotation for Moon orbit around Earth
+                    rlTranslatef(moonOrbitRadius, 0.0f, 0.0f);          // Translation for Moon orbit
+                    rlRotatef(-moonOrbitRotation, 0.0f, 1.0f, 0.0f);    // Rotation for Moon orbit around Earth inverted
+                    rlRotatef(moonRotation, 0.0f, 1.0f, 0.0f);          // Rotation for Moon itself
+                    rlScalef(moonRadius, moonRadius, moonRadius);       // Scale Moon
+                    
+                    DrawSphereBasic(LIGHTGRAY);                         // Draw the Moon
+                rlPopMatrix();
+                
+                // Some reference elements (not affected by previous matrix transformations)
+                DrawCircle3D((Vector3){ 0.0f, 0.0f, 0.0f }, earthOrbitRadius, (Vector3){ 1, 0, 0 }, 90.0f, Fade(RED, 0.5f));
+                DrawGrid(20, 1.0f);
+
+            EndMode3D();
+
+            DrawText("EARTH ORBITING AROUND THE SUN!", 400, 10, 20, MAROON);
+            DrawFPS(10, 10);
+
+        EndDrawing();
+        //----------------------------------------------------------------------------------
+    }
+
+    // De-Initialization
+    //--------------------------------------------------------------------------------------
+    CloseWindow();        // Close window and OpenGL context
+    //--------------------------------------------------------------------------------------
+
+    return 0;
+}
+
+//--------------------------------------------------------------------------------------------
+// Module Functions Definitions (local)
+//--------------------------------------------------------------------------------------------
+
+// Draw sphere without any matrix transformation
+// NOTE: Sphere is drawn in world position ( 0, 0, 0 ) with radius 1.0f
+void DrawSphereBasic(Color color)
+{
+    int rings = 16;
+    int slices = 16;
+    
+    rlBegin(RL_TRIANGLES);
+        rlColor4ub(color.r, color.g, color.b, color.a);
+
+        for (int i = 0; i < (rings + 2); i++)
+        {
+            for (int j = 0; j < slices; j++)
+            {
+                rlVertex3f(cosf(DEG2RAD*(270+(180/(rings + 1))*i))*sinf(DEG2RAD*(j*360/slices)),
+                           sinf(DEG2RAD*(270+(180/(rings + 1))*i)),
+                           cosf(DEG2RAD*(270+(180/(rings + 1))*i))*cosf(DEG2RAD*(j*360/slices)));
+                rlVertex3f(cosf(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*sinf(DEG2RAD*((j+1)*360/slices)),
+                           sinf(DEG2RAD*(270+(180/(rings + 1))*(i+1))),
+                           cosf(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*cosf(DEG2RAD*((j+1)*360/slices)));
+                rlVertex3f(cosf(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*sinf(DEG2RAD*(j*360/slices)),
+                           sinf(DEG2RAD*(270+(180/(rings + 1))*(i+1))),
+                           cosf(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*cosf(DEG2RAD*(j*360/slices)));
+
+                rlVertex3f(cosf(DEG2RAD*(270+(180/(rings + 1))*i))*sinf(DEG2RAD*(j*360/slices)),
+                           sinf(DEG2RAD*(270+(180/(rings + 1))*i)),
+                           cosf(DEG2RAD*(270+(180/(rings + 1))*i))*cosf(DEG2RAD*(j*360/slices)));
+                rlVertex3f(cosf(DEG2RAD*(270+(180/(rings + 1))*(i)))*sinf(DEG2RAD*((j+1)*360/slices)),
+                           sinf(DEG2RAD*(270+(180/(rings + 1))*(i))),
+                           cosf(DEG2RAD*(270+(180/(rings + 1))*(i)))*cosf(DEG2RAD*((j+1)*360/slices)));
+                rlVertex3f(cosf(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*sinf(DEG2RAD*((j+1)*360/slices)),
+                           sinf(DEG2RAD*(270+(180/(rings + 1))*(i+1))),
+                           cosf(DEG2RAD*(270+(180/(rings + 1))*(i+1)))*cosf(DEG2RAD*((j+1)*360/slices)));
+            }
+        }
+    rlEnd();
+}
diff --git a/examples/src/models/models_skybox.c b/examples/src/models/models_skybox.c
index 6f6002b..759c79c 100644
--- a/examples/src/models/models_skybox.c
+++ b/examples/src/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, 0 };
+    Camera camera = {{ 1.0f, 1.0f, 1.0f }, { 4.0f, 1.0f, 4.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f, 0 };
 
     // Load skybox model   
     Mesh cube = GenMeshCube(1.0f, 1.0f, 1.0f);
@@ -29,19 +29,19 @@ int main()
     
     // Load skybox shader and set required locations
     // NOTE: Some locations are automatically set at shader loading
-    skybox.material.shader = LoadShader("resources/shaders/skybox.vs", "resources/shaders/skybox.fs");
-    SetShaderValuei(skybox.material.shader, GetShaderLocation(skybox.material.shader, "environmentMap"), (int[1]){ MAP_CUBEMAP }, 1);
+    skybox.materials[0].shader = LoadShader("resources/shaders/skybox.vs", "resources/shaders/skybox.fs");
+    SetShaderValue(skybox.materials[0].shader, GetShaderLocation(skybox.materials[0].shader, "environmentMap"), (int[1]){ MAP_CUBEMAP }, UNIFORM_INT);
 
     // Load cubemap shader and setup required shader locations
     Shader shdrCubemap = LoadShader("resources/shaders/cubemap.vs", "resources/shaders/cubemap.fs");
-    SetShaderValuei(shdrCubemap, GetShaderLocation(shdrCubemap, "equirectangularMap"), (int[1]){ 0 }, 1);
+    SetShaderValue(shdrCubemap, GetShaderLocation(shdrCubemap, "equirectangularMap"), (int[1]){ 0 }, UNIFORM_INT);
     
     // Load HDR panorama (sphere) texture
     Texture2D texHDR = LoadTexture("resources/dresden_square.hdr");
     
     // Generate cubemap (texture with 6 quads-cube-mapping) from panorama HDR texture
     // NOTE: New texture is generated rendering to texture, shader computes the sphre->cube coordinates mapping
-    skybox.material.maps[MAP_CUBEMAP].texture = GenTextureCubemap(shdrCubemap, texHDR, 512);
+    skybox.materials[0].maps[MAP_CUBEMAP].texture = GenTextureCubemap(shdrCubemap, texHDR, 512);
     
     UnloadTexture(texHDR);      // Texture not required anymore, cubemap already generated
     UnloadShader(shdrCubemap);  // Unload cubemap generation shader, not required anymore
diff --git a/examples/src/models/models_yaw_pitch_roll.c b/examples/src/models/models_yaw_pitch_roll.c
index 652f168..658be08 100644
--- a/examples/src/models/models_yaw_pitch_roll.c
+++ b/examples/src/models/models_yaw_pitch_roll.c
@@ -5,9 +5,9 @@
 *   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 contributed by Berni (@Berni8k) and reviewed by Ramon Santamaria (@raysan5)
 *
-*   Copyright (c) 2017 Ramon Santamaria (@raysan5)
+*   Copyright (c) 2017 Berni (@Berni8k) and Ramon Santamaria (@raysan5)
 *
 ********************************************************************************************/
 
@@ -37,10 +37,10 @@ int main()
     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
+    Model model = LoadModel("resources/plane.obj");     // Load OBJ model
+    model.materials[0].maps[MAP_DIFFUSE].texture = LoadTexture("resources/plane_diffuse.png"); // Set map diffuse texture
 
-    GenTextureMipmaps(&model.material.maps[MAP_DIFFUSE].texture);
+    GenTextureMipmaps(&model.materials[0].maps[MAP_DIFFUSE].texture);
 
     Camera camera = { 0 };
     camera.position = (Vector3){ 0.0f, 60.0f, -120.0f };// Camera position perspective