public static int Main()
{
// Initialization
//--------------------------------------------------------------------------------------
const int screenWidth = 800;
const int screenHeight = 450;
InitWindow(screenWidth, screenHeight, "raylib [models] example - skybox loading and drawing");
// Define the camera to look into our 3d world
Camera3D camera = new Camera3D(new Vector3(1.0f, 1.0f, 1.0f), new Vector3(4.0f, 1.0f, 4.0f), new Vector3(0.0f, 1.0f, 0.0f), 45.0f, CAMERA_PERSPECTIVE);
// Load skybox model
Mesh cube = GenMeshCube(1.0f, 1.0f, 1.0f);
Model skybox = LoadModelFromMesh(cube);
// Load skybox shader and set required locations
// NOTE: Some locations are automatically set at shader loading
Shader shader = LoadShader("resources/shaders/glsl330/skybox.vs", "resources/shaders/glsl330/skybox.fs");
Utils.SetMaterialShader(ref skybox, 0, ref shader);
Utils.SetShaderValue(shader, GetShaderLocation(shader, "environmentMap"), new int[] { (int)MAP_CUBEMAP }, UNIFORM_INT);
Utils.SetShaderValue(shader, GetShaderLocation(shader, "vflipped"), new int[] { 1 }, UNIFORM_INT);
// Load cubemap shader and setup required shader locations
Shader shdrCubemap = LoadShader("resources/shaders/glsl330/cubemap.vs", "resources/shaders/glsl330/cubemap.fs");
Utils.SetShaderValue(shdrCubemap, GetShaderLocation(shdrCubemap, "equirectangularMap"), new int[] { 0 }, UNIFORM_INT);
// Load HDR panorama (sphere) texture
string panoFileName = "resources/dresden_square_2k.hdr";
Texture2D panorama = LoadTexture(panoFileName);
// Generate cubemap (texture with 6 quads-cube-mapping) from panorama HDR texture
// NOTE: New texture is generated rendering to texture, shader computes the sphre->cube coordinates mapping
Texture2D cubemap = GenTextureCubemap(shdrCubemap, panorama, 1024, PixelFormat.UNCOMPRESSED_R8G8B8A8);
Utils.SetMaterialTexture(ref skybox, 0, MAP_CUBEMAP, ref cubemap);
UnloadTexture(panorama); // Texture not required anymore, cubemap already generated
SetCameraMode(camera, CAMERA_FIRST_PERSON); // Set a first person 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(ref camera); // Update camera
// Load new cubemap texture on drag&drop
if (IsFileDropped())
{
int count = 0;
string[] droppedFiles = Utils.MarshalDroppedFiles(ref count);
// Only support one file dropped
if (count == 1)
{
if (IsFileExtension(droppedFiles[0], ".png;.jpg;.hdr;.bmp;.tga"))
{
// Unload current cubemap texture and load new one
UnloadTexture(Utils.GetMaterialTexture(ref skybox, 0, MAP_CUBEMAP));
panorama = LoadTexture(droppedFiles[0]);
panoFileName = droppedFiles[0];
// Generate cubemap from panorama texture
cubemap = GenTextureCubemap(shdrCubemap, panorama, 1024, PixelFormat.UNCOMPRESSED_R8G8B8A8);
Utils.SetMaterialTexture(ref skybox, 0, MAP_CUBEMAP, ref cubemap);
UnloadTexture(panorama);
}
}
// Clear internal buffers
ClearDroppedFiles();
}
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
BeginDrawing();
ClearBackground(RAYWHITE);
BeginMode3D(camera);
DrawModel(skybox, new Vector3(0, 0, 0), 1.0f, WHITE);
DrawGrid(10, 1.0f);
EndMode3D();
DrawFPS(10, 10);
EndDrawing();
//----------------------------------------------------------------------------------
}
// De-Initialization
//--------------------------------------------------------------------------------------
UnloadModel(skybox); // Unload skybox model (and textures)
CloseWindow(); // Close window and OpenGL context
//--------------------------------------------------------------------------------------
return(0);
}
