raylib-src/examples/models/models_obj_loading.c

/*******************************************************************************************
*
*   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;
}