REDESIGNED: models_obj_loading > models_loading

5 files changed, 143 insertions, 82 deletions

diff --git a/examples/Makefile b/examples/Makefile
index ce02d55f..26cb2328 100644
--- a/examples/Makefile
+++ b/examples/Makefile
@@ -420,8 +420,7 @@ EXAMPLES = \
     models/models_material_pbr \
     models/models_mesh_generation \
     models/models_mesh_picking \
-    models/models_obj_loading \
-    models/models_obj_viewer \
+    models/models_loading \
     models/models_orthographic_projection \
     models/models_rlgl_solar_system \
     models/models_skybox \
diff --git a/examples/models/models_loading.c b/examples/models/models_loading.c
new file mode 100644
index 00000000..af9c5e39
--- /dev/null
+++ b/examples/models/models_loading.c
@@ -0,0 +1,142 @@
+/*******************************************************************************************
+*
+*   raylib [models] example - Models loading
+*
+*   raylib supports multiple models file formats:
+*
+*     - OBJ > Text file, must include vertex position-texcoords-normals information,
+*             if files references some .mtl materials file, it will be loaded (or try to)
+*     - GLTF > Modern text/binary file format, includes lot of information and it could
+*              also reference external files, raylib will try loading mesh and materials data
+*     - IQM > Binary file format including mesh vertex data but also animation data,
+*             raylib can load .iqm animations.  
+*
+*   This example has been created using raylib 2.6 (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"
+
+int main(void)
+{
+    // Initialization
+    //--------------------------------------------------------------------------------------
+    const int screenWidth = 800;
+    const int screenHeight = 450;
+
+    InitWindow(screenWidth, screenHeight, "raylib [models] example - models loading");
+
+    // Define the camera to look into our 3d world
+    Camera camera = { 0 };
+    camera.position = (Vector3){ 50.0f, 50.0f, 50.0f }; // Camera position
+    camera.target = (Vector3){ 0.0f, 10.0f, 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/models/castle.obj");                 // Load 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
+ 
+    BoundingBox bounds = MeshBoundingBox(model.meshes[0]);  // Set model bounds
+
+    // NOTE: bounds are calculated from the original size of the model,
+    // if model is scaled on drawing, bounds must be also scaled
+
+    SetCameraMode(camera, CAMERA_FREE);     // Set a free camera mode
+
+    bool selected = false;          // Selected object flag
+
+    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);
+        
+        // Load new models/textures on drag&drop
+        if (IsFileDropped())
+        {
+            int count = 0;
+            char **droppedFiles = GetDroppedFiles(&count);
+
+            if (count == 1) // Only support one file dropped
+            {
+                if (IsFileExtension(droppedFiles[0], ".obj") ||
+                    IsFileExtension(droppedFiles[0], ".gltf") ||
+                    IsFileExtension(droppedFiles[0], ".iqm"))       // Model file formats supported
+                {
+                    UnloadModel(model);                     // Unload previous model
+                    model = LoadModel(droppedFiles[0]);     // Load new model
+                    model.materials[0].maps[MAP_DIFFUSE].texture = texture; // Set current map diffuse texture
+
+                    bounds = MeshBoundingBox(model.meshes[0]);
+                    
+                    // TODO: Move camera position from target enough distance to visualize model properly
+                }
+                else if (IsFileExtension(droppedFiles[0], ".png"))  // Texture file formats supported
+                {
+                    // Unload current model texture and load new one
+                    UnloadTexture(texture);
+                    texture = LoadTexture(droppedFiles[0]);
+                    model.materials[0].maps[MAP_DIFFUSE].texture = texture;
+                }
+            }
+
+            ClearDroppedFiles();    // Clear internal buffers
+        }
+
+        // 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, 10.0f);         // Draw a grid
+
+                if (selected) DrawBoundingBox(bounds, GREEN);   // Draw selection box
+
+            EndMode3D();
+            
+            DrawText("Drag & drop model to load mesh/texture.", 10, GetScreenHeight() - 20, 10, DARKGRAY);
+            if (selected) DrawText("MODEL SELECTED", GetScreenWidth() - 110, 10, 10, GREEN);
+
+            DrawText("(c) Castle 3D model by Alberto Cano", screenWidth - 200, screenHeight - 20, 10, GRAY);
+
+            DrawFPS(10, 10);
+
+        EndDrawing();
+        //----------------------------------------------------------------------------------
+    }
+
+    // De-Initialization
+    //--------------------------------------------------------------------------------------
+    UnloadTexture(texture);     // Unload texture
+    UnloadModel(model);         // Unload model
+
+    CloseWindow();              // Close window and OpenGL context
+    //--------------------------------------------------------------------------------------
+
+    return 0;
+}
\ No newline at end of file
diff --git a/examples/models/models_loading.png b/examples/models/models_loading.png
new file mode 100644
index 00000000..8ad8cb19
--- /dev/null
+++ b/examples/models/models_loading.png
diff --git a/examples/models/models_obj_loading.c b/examples/models/models_obj_loading.c
deleted file mode 100644
index 51578bc1..00000000
--- a/examples/models/models_obj_loading.c
+++ /dev/null
@@ -1,80 +0,0 @@
-/*******************************************************************************************
-*
-*   raylib [models] example - Load and draw a 3d model (OBJ)
-*
-*   This example has been created using raylib 1.3 (www.raylib.com)
-*   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
-*
-*   Copyright (c) 2014 Ramon Santamaria (@raysan5)
-*
-********************************************************************************************/
-
-#include "raylib.h"
-
-int main(void)
-{
-    // Initialization
-    //--------------------------------------------------------------------------------------
-    const int screenWidth = 800;
-    const int screenHeight = 450;
-
-    InitWindow(screenWidth, screenHeight, "raylib [models] example - obj model loading");
-
-    // Define the camera to look into our 3d world
-    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
-    //--------------------------------------------------------------------------------------
-
-    // Main game loop
-    while (!WindowShouldClose())    // Detect window close button or ESC key
-    {
-        // Update
-        //----------------------------------------------------------------------------------
-        //...
-        //----------------------------------------------------------------------------------
-
-        // Draw
-        //----------------------------------------------------------------------------------
-        BeginDrawing();
-
-            ClearBackground(RAYWHITE);
-
-            BeginMode3D(camera);
-
-                DrawModel(model, position, 0.2f, WHITE);   // Draw 3d model with texture
-
-                DrawGrid(10, 1.0f);         // Draw a grid
-
-                DrawGizmo(position);        // Draw gizmo
-
-            EndMode3D();
-
-            DrawText("(c) Castle 3D model by Alberto Cano", screenWidth - 200, screenHeight - 20, 10, GRAY);
-
-            DrawFPS(10, 10);
-
-        EndDrawing();
-        //----------------------------------------------------------------------------------
-    }
-
-    // De-Initialization
-    //--------------------------------------------------------------------------------------
-    UnloadTexture(texture);     // Unload texture
-    UnloadModel(model);         // Unload model
-
-    CloseWindow();              // Close window and OpenGL context
-    //--------------------------------------------------------------------------------------
-
-    return 0;
-}
\ No newline at end of file
diff --git a/examples/models/models_obj_loading.png b/examples/models/models_obj_loading.png
deleted file mode 100644
index 098aa601..00000000
--- a/examples/models/models_obj_loading.png
+++ /dev/null