1/*******************************************************************************************
2*
3* raylib [models] example - Heightmap loading and drawing
4*
5* This example has been created using raylib 1.8 (www.raylib.com)
6* raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
7*
8* Copyright (c) 2015 Ramon Santamaria (@raysan5)
9*
10********************************************************************************************/
11
12#include "raylib.h"
13
14int main(void)
15{
16 // Initialization
17 //--------------------------------------------------------------------------------------
18 const int screenWidth = 800;
19 const int screenHeight = 450;
20
21 InitWindow(screenWidth, screenHeight, "raylib [models] example - heightmap loading and drawing");
22
23 // Define our custom camera to look into our 3d world
24 Camera camera = { { 18.0f, 18.0f, 18.0f }, { 0.0f, 0.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f, 0 };
25
26 Image image = LoadImage("resources/heightmap.png"); // Load heightmap image (RAM)
27 Texture2D texture = LoadTextureFromImage(image); // Convert image to texture (VRAM)
28
29 Mesh mesh = GenMeshHeightmap(image, (Vector3){ 16, 8, 16 }); // Generate heightmap mesh (RAM and VRAM)
30 Model model = LoadModelFromMesh(mesh); // Load model from generated mesh
31
32 model.materials[0].maps[MAP_DIFFUSE].texture = texture; // Set map diffuse texture
33 Vector3 mapPosition = { -8.0f, 0.0f, -8.0f }; // Define model position
34
35 UnloadImage(image); // Unload heightmap image from RAM, already uploaded to VRAM
36
37 SetCameraMode(camera, CAMERA_ORBITAL); // Set an orbital camera mode
38
39 SetTargetFPS(60); // Set our game to run at 60 frames-per-second
40 //--------------------------------------------------------------------------------------
41
42 // Main game loop
43 while (!WindowShouldClose()) // Detect window close button or ESC key
44 {
45 // Update
46 //----------------------------------------------------------------------------------
47 UpdateCamera(&camera); // Update camera
48 //----------------------------------------------------------------------------------
49
50 // Draw
51 //----------------------------------------------------------------------------------
52 BeginDrawing();
53
54 ClearBackground(RAYWHITE);
55
56 BeginMode3D(camera);
57
58 DrawModel(model, mapPosition, 1.0f, RED);
59
60 DrawGrid(20, 1.0f);
61
62 EndMode3D();
63
64 DrawTexture(texture, screenWidth - texture.width - 20, 20, WHITE);
65 DrawRectangleLines(screenWidth - texture.width - 20, 20, texture.width, texture.height, GREEN);
66
67 DrawFPS(10, 10);
68
69 EndDrawing();
70 //----------------------------------------------------------------------------------
71 }
72
73 // De-Initialization
74 //--------------------------------------------------------------------------------------
75 UnloadTexture(texture); // Unload texture
76 UnloadModel(model); // Unload model
77
78 CloseWindow(); // Close window and OpenGL context
79 //--------------------------------------------------------------------------------------
80
81 return 0;
82}