void Terrain::Init(ID3D11Device* device, ID3D11DeviceContext* dc, const InitInfo& initInfo)
{
mInfo = initInfo;
// Divide heightmap into patches such that each patch has CellsPerPatch.
mNumPatchVertRows = ((mInfo.HeightmapHeight-1) / CellsPerPatch) + 1;
mNumPatchVertCols = ((mInfo.HeightmapWidth-1) / CellsPerPatch) + 1;
mNumPatchVertices = mNumPatchVertRows*mNumPatchVertCols;
mNumPatchQuadFaces = (mNumPatchVertRows-1)*(mNumPatchVertCols-1);
LoadHeightmap();
Smooth();
CalcAllPatchBoundsY();
BuildQuadPatchVB(device);
BuildQuadPatchIB(device);
BuildHeightmapSRV(device);
std::vector<std::wstring> layerFilenames;
layerFilenames.push_back(mInfo.LayerMapFilename0);
layerFilenames.push_back(mInfo.LayerMapFilename1);
layerFilenames.push_back(mInfo.LayerMapFilename2);
layerFilenames.push_back(mInfo.LayerMapFilename3);
layerFilenames.push_back(mInfo.LayerMapFilename4);
mLayerMapArraySRV = d3dHelper::CreateTexture2DArraySRV(device, dc, layerFilenames);
HR(D3DX11CreateShaderResourceViewFromFileW(device,
mInfo.BlendMapFilename.c_str(), 0, 0, &mBlendMapSRV, 0));
}
int main()
{
// Initialization
//--------------------------------------------------------------------------------------
int screenWidth = 800;
int screenHeight = 450;
InitWindow(screenWidth, screenHeight, "raylib [models] example - heightmap loading and drawing");
// Define our custom camera to look into our 3d world
Camera camera = {{ 18.0f, 16.0f, 18.0f }, { 0.0f, 0.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f };
Image image = LoadImage("resources/heightmap.png"); // Load heightmap image (RAM)
Texture2D texture = LoadTextureFromImage(image); // Convert image to texture (VRAM)
Model map = LoadHeightmap(image, (Vector3) {
16, 8, 16
}); // Load heightmap model with defined size
map.material.texDiffuse = texture; // Set map diffuse texture
Vector3 mapPosition = { -8.0f, 0.0f, -8.0f }; // Set model position (depends on model scaling!)
UnloadImage(image); // Unload heightmap image from RAM, already uploaded to VRAM
SetCameraMode(camera, CAMERA_ORBITAL); // Set an orbital 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 camera
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
BeginDrawing();
ClearBackground(RAYWHITE);
Begin3dMode(camera);
// NOTE: Model is scaled to 1/4 of its original size (128x128 units)
DrawModel(map, mapPosition, 1.0f, RED);
DrawGrid(20, 1.0f);
End3dMode();
DrawTexture(texture, screenWidth - texture.width - 20, 20, WHITE);
DrawRectangleLines(screenWidth - texture.width - 20, 20, texture.width, texture.height, GREEN);
DrawFPS(10, 10);
EndDrawing();
//----------------------------------------------------------------------------------
}
// De-Initialization
//--------------------------------------------------------------------------------------
UnloadTexture(texture); // Unload texture
UnloadModel(map); // Unload model
CloseWindow(); // Close window and OpenGL context
//--------------------------------------------------------------------------------------
return 0;
}
