ADDED: GetModelBoundingBox()

Reorganized models functionality, it still needs some review...

src/models.c

@@ -819,6 +819,35 @@ void UnloadModelKeepMeshes(Model model)
     TRACELOG(LOG_INFO, "MODEL: Unloaded model (but not meshes) from RAM and VRAM");
 }
 
+// Compute model bounding box limits (considers all meshes)
+BoundingBox GetModelBoundingBox(Model model)
+{
+    BoundingBox bounds = { 0 };
+    
+    if (model.meshCount > 0)
+    {      
+        Vector3 temp = { 0 };
+        bounds = GetMeshBoundingBox(model.meshes[0]);
+        
+        for (int i = 1; i < model.meshCount; i++)
+        {
+            BoundingBox tempBounds = GetMeshBoundingBox(model.meshes[i]);
+            
+            temp.x = (bounds.min.x < tempBounds.min.x)? bounds.min.x : tempBounds.min.x;
+            temp.y = (bounds.min.y < tempBounds.min.y)? bounds.min.y : tempBounds.min.y;
+            temp.z = (bounds.min.z < tempBounds.min.z)? bounds.min.z : tempBounds.min.z;
+            bounds.min = temp;
+
+            temp.x = (bounds.max.x > tempBounds.max.x)? bounds.max.x : tempBounds.max.x;
+            temp.y = (bounds.max.y > tempBounds.max.y)? bounds.max.y : tempBounds.max.y;
+            temp.z = (bounds.max.z > tempBounds.max.z)? bounds.max.z : tempBounds.max.z;
+            bounds.max = temp;
+        }
+    }
+    
+    return bounds;
+}
+
 // Upload vertex data into a VAO (if supported) and VBO
 void UploadMesh(Mesh *mesh, bool dynamic)
 {

src/raylib.h

@@ -1378,33 +1378,33 @@ RLAPI void DrawGrid(int slices, float spacing);
 // Model 3d Loading and Drawing Functions (Module: models)
 //------------------------------------------------------------------------------------
 
-// Model loading/unloading functions
+// Model management functions
 RLAPI Model LoadModel(const char *fileName);                                                // Load model from files (meshes and materials)
 RLAPI Model LoadModelFromMesh(Mesh mesh);                                                   // Load model from generated mesh (default material)
 RLAPI void UnloadModel(Model model);                                                        // Unload model (including meshes) from memory (RAM and/or VRAM)
 RLAPI void UnloadModelKeepMeshes(Model model);                                              // Unload model (but not meshes) from memory (RAM and/or VRAM)
+RLAPI BoundingBox GetModelBoundingBox(Model model);                                         // Compute model bounding box limits (considers all meshes)
 
-// Mesh loading/unloading functions
+// Model drawing functions
+RLAPI void DrawModel(Model model, Vector3 position, float scale, Color tint);                           // Draw a model (with texture if set)
+RLAPI void DrawModelEx(Model model, Vector3 position, Vector3 rotationAxis, float rotationAngle, Vector3 scale, Color tint); // Draw a model with extended parameters
+RLAPI void DrawModelWires(Model model, Vector3 position, float scale, Color tint);                      // Draw a model wires (with texture if set)
+RLAPI void DrawModelWiresEx(Model model, Vector3 position, Vector3 rotationAxis, float rotationAngle, Vector3 scale, Color tint); // Draw a model wires (with texture if set) with extended parameters
+RLAPI void DrawBoundingBox(BoundingBox box, Color color);                                               // Draw bounding box (wires)
+RLAPI void DrawBillboard(Camera camera, Texture2D texture, Vector3 position, float size, Color tint);   // Draw a billboard texture
+RLAPI void DrawBillboardRec(Camera camera, Texture2D texture, Rectangle source, Vector3 position, Vector2 size, Color tint); // Draw a billboard texture defined by source
+RLAPI void DrawBillboardPro(Camera camera, Texture2D texture, Rectangle source, Vector3 position, Vector2 size, Vector2 origin, float rotation, Color tint); // Draw a billboard texture defined by source and rotation
+
+// Mesh management functions
 RLAPI void UploadMesh(Mesh *mesh, bool dynamic);                                            // Upload mesh vertex data in GPU and provide VAO/VBO ids
 RLAPI void UpdateMeshBuffer(Mesh mesh, int index, void *data, int dataSize, int offset);    // Update mesh vertex data in GPU for a specific buffer index
+RLAPI void UnloadMesh(Mesh mesh);                                                           // Unload mesh data from CPU and GPU
 RLAPI void DrawMesh(Mesh mesh, Material material, Matrix transform);                        // Draw a 3d mesh with material and transform
 RLAPI void DrawMeshInstanced(Mesh mesh, Material material, Matrix *transforms, int instances); // Draw multiple mesh instances with material and different transforms
-RLAPI void UnloadMesh(Mesh mesh);                                                           // Unload mesh data from CPU and GPU
 RLAPI bool ExportMesh(Mesh mesh, const char *fileName);                                     // Export mesh data to file, returns true on success
-
-// Material loading/unloading functions
-RLAPI Material *LoadMaterials(const char *fileName, int *materialCount);                    // Load materials from model file
-RLAPI Material LoadMaterialDefault(void);                                                   // Load default material (Supports: DIFFUSE, SPECULAR, NORMAL maps)
-RLAPI void UnloadMaterial(Material material);                                               // Unload material from GPU memory (VRAM)
-RLAPI void SetMaterialTexture(Material *material, int mapType, Texture2D texture);          // Set texture for a material map type (MATERIAL_MAP_DIFFUSE, MATERIAL_MAP_SPECULAR...)
-RLAPI void SetModelMeshMaterial(Model *model, int meshId, int materialId);                  // Set material for a mesh
-
-// Model animations loading/unloading functions
-RLAPI ModelAnimation *LoadModelAnimations(const char *fileName, int *animsCount);           // Load model animations from file
-RLAPI void UpdateModelAnimation(Model model, ModelAnimation anim, int frame);               // Update model animation pose
-RLAPI void UnloadModelAnimation(ModelAnimation anim);                                       // Unload animation data
-RLAPI void UnloadModelAnimations(ModelAnimation* animations, unsigned int count);           // Unload animation array data
-RLAPI bool IsModelAnimationValid(Model model, ModelAnimation anim);                         // Check model animation skeleton match
+RLAPI BoundingBox GetMeshBoundingBox(Mesh mesh);                                            // Compute mesh bounding box limits
+RLAPI void GenMeshTangents(Mesh *mesh);                                                     // Compute mesh tangents
+RLAPI void GenMeshBinormals(Mesh *mesh);                                                    // Compute mesh binormals
 
 // Mesh generation functions
 RLAPI Mesh GenMeshPoly(int sides, float radius);                                            // Generate polygonal mesh
@@ -1418,20 +1418,19 @@ RLAPI Mesh GenMeshKnot(float radius, float size, int radSeg, int sides);
 RLAPI Mesh GenMeshHeightmap(Image heightmap, Vector3 size);                                 // Generate heightmap mesh from image data
 RLAPI Mesh GenMeshCubicmap(Image cubicmap, Vector3 cubeSize);                               // Generate cubes-based map mesh from image data
 
-// Mesh manipulation functions
-RLAPI BoundingBox GetMeshBoundingBox(Mesh mesh);                                            // Compute mesh bounding box limits
-RLAPI void GenMeshTangents(Mesh *mesh);                                                     // Compute mesh tangents
-RLAPI void GenMeshBinormals(Mesh *mesh);                                                    // Compute mesh binormals
+// Material loading/unloading functions
+RLAPI Material *LoadMaterials(const char *fileName, int *materialCount);                    // Load materials from model file
+RLAPI Material LoadMaterialDefault(void);                                                   // Load default material (Supports: DIFFUSE, SPECULAR, NORMAL maps)
+RLAPI void UnloadMaterial(Material material);                                               // Unload material from GPU memory (VRAM)
+RLAPI void SetMaterialTexture(Material *material, int mapType, Texture2D texture);          // Set texture for a material map type (MATERIAL_MAP_DIFFUSE, MATERIAL_MAP_SPECULAR...)
+RLAPI void SetModelMeshMaterial(Model *model, int meshId, int materialId);                  // Set material for a mesh
 
-// Model drawing functions
-RLAPI void DrawModel(Model model, Vector3 position, float scale, Color tint);                           // Draw a model (with texture if set)
-RLAPI void DrawModelEx(Model model, Vector3 position, Vector3 rotationAxis, float rotationAngle, Vector3 scale, Color tint); // Draw a model with extended parameters
-RLAPI void DrawModelWires(Model model, Vector3 position, float scale, Color tint);                      // Draw a model wires (with texture if set)
-RLAPI void DrawModelWiresEx(Model model, Vector3 position, Vector3 rotationAxis, float rotationAngle, Vector3 scale, Color tint); // Draw a model wires (with texture if set) with extended parameters
-RLAPI void DrawBoundingBox(BoundingBox box, Color color);                                               // Draw bounding box (wires)
-RLAPI void DrawBillboard(Camera camera, Texture2D texture, Vector3 position, float size, Color tint);   // Draw a billboard texture
-RLAPI void DrawBillboardRec(Camera camera, Texture2D texture, Rectangle source, Vector3 position, Vector2 size, Color tint); // Draw a billboard texture defined by source
-RLAPI void DrawBillboardPro(Camera camera, Texture2D texture, Rectangle source, Vector3 position, Vector2 size, Vector2 origin, float rotation, Color tint); // Draw a billboard texture defined by source and rotation
+// Model animations loading/unloading functions
+RLAPI ModelAnimation *LoadModelAnimations(const char *fileName, int *animsCount);           // Load model animations from file
+RLAPI void UpdateModelAnimation(Model model, ModelAnimation anim, int frame);               // Update model animation pose
+RLAPI void UnloadModelAnimation(ModelAnimation anim);                                       // Unload animation data
+RLAPI void UnloadModelAnimations(ModelAnimation* animations, unsigned int count);           // Unload animation array data
+RLAPI bool IsModelAnimationValid(Model model, ModelAnimation anim);                         // Check model animation skeleton match
 
 // Collision detection functions
 RLAPI bool CheckCollisionSpheres(Vector3 center1, float radius1, Vector3 center2, float radius2);       // Check collision between two spheres