Add mesh generation example -IN PROGRESS-

examples/models/models_mesh_generation.c

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+/*******************************************************************************************
+*
+*   raylib example - procedural mesh generation
+*
+*   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)
+*
+*   Copyright (c) 2017 Ramon Santamaria (Ray San)
+*
+********************************************************************************************/
+
+#include "raylib.h"
+
+//------------------------------------------------------------------------------------
+// Program main entry point
+//------------------------------------------------------------------------------------
+int main()
+{
+    // Initialization
+    //--------------------------------------------------------------------------------------
+    int screenWidth = 800;
+    int screenHeight = 450;
+
+    InitWindow(screenWidth, screenHeight, "raylib [models] example - mesh generation");
+    
+    //Model model = LoadModelFromMesh(GenMeshPlane(2, 2, 5, 5));            // Texture coordinates must be divided by resX, resZ
+    //Model model = LoadModelFromMesh(GenMeshCube(2.0f, 1.0f, 2.0f));       // OK!
+    //Model model = LoadModelFromMesh(GenMeshSphere(2, 32, 32));              // OK! (par_shapes)
+    //Model model = LoadModelFromMesh(GenMeshHemiSphere(2, 16, 16));              // OK! (par_shapes)
+    //Model model = LoadModelFromMesh(GenMeshCylinder(1, 2, 16));              // OK! (par_shapes)
+    Model model = LoadModelFromMesh(GenMeshTorus(0.25f, 4.0f, 16, 32));
+    //Model model = LoadModelFromMesh(GenMeshKnot(1.0f, 2.0f, 16, 128));
+    model.material.maps[MAP_DIFFUSE].texture = LoadTexture("resources/pixels.png");
+
+    // Debug information
+    /*
+    printf("model.mesh.vertexCount: %i\n", model.mesh.vertexCount);
+    printf("model.mesh.triangleCount: %i\n", model.mesh.triangleCount);
+    printf("model.mesh.vboId (position): %i\n", model.mesh.vboId[0]);
+    printf("model.mesh.vboId (texcoords): %i\n", model.mesh.vboId[1]);
+    printf("model.mesh.vboId (normals): %i\n", model.mesh.vboId[2]);
+    printf("model.mesh.vboId (indices): %i\n", model.mesh.vboId[6]);
+    */
+    
+    // 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 };
+
+    Vector3 position = { 0.0f, 0.0f, 0.0f };
+    
+    SetCameraMode(camera, CAMERA_FREE);         // Set a 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);      // Update internal camera and our camera
+        //----------------------------------------------------------------------------------
+
+        // Draw
+        //----------------------------------------------------------------------------------
+        BeginDrawing();
+
+            ClearBackground(RAYWHITE);
+
+            Begin3dMode(camera);
+
+                DrawModel(model, position, 1.0f, WHITE);
+
+                DrawGrid(10, 1.0);
+
+            End3dMode();
+
+        EndDrawing();
+        //----------------------------------------------------------------------------------
+    }
+
+    // De-Initialization
+    //--------------------------------------------------------------------------------------
+    UnloadModel(model);
+    
+    CloseWindow();        // Close window and OpenGL context
+    //--------------------------------------------------------------------------------------
+
+    return 0;
+}