public void Build()
{
UpdateMaterial();
_loadingCircle = TerrainUtilities.GenerateLoadingCircle(loadRadius);
if (_tileBuffer != null)
{
foreach (var tile in _tileBuffer)
{
Destroy(tile.Value.gameObject);
}
}
_tileBuffer = new Dictionary <IntegerCoordinate2D, TerrainTile>();
_unusedTileQueue = new Queue <IntegerCoordinate2D>();
_lastCenterX = int.MaxValue;
_lastCenterY = int.MaxValue;
}
public static IEnumerator GetChunkData(IntegerCoordinate2D coordinate2D, TerrainController controller,
TerrainTile tile)
{
//Working = true;
var settings = controller.terrainGeneratorSettings;
var shader = settings.terrainComputeShader;
//Debug.Log("Starting GPU Compute "+Time.frameCount);
var dataSize = settings.size + 2;
var kernel1 = settings.terrainComputeShader.FindKernel("TerrainGeneratorPass1");
var kernel2 = settings.terrainComputeShader.FindKernel("TerrainGeneratorPass2");
if (_inputData == null || _inputData.Length != dataSize * dataSize)
{
_inputData = new TerrainTileVertexData[dataSize * dataSize];
_dataBuffer =
new ComputeBuffer(_inputData.Length, 24); //2 * Vector3 = 2 * (3 * float) = 2 * (3 * 4) = 24
_dataBuffer.SetData(_inputData);
shader.SetInt("_size", dataSize);
TerrainUtilities.TransferTerrainGeneratorSettingsToComputeShader(shader, settings);
shader.SetBuffer(kernel1, "_Data", _dataBuffer);
shader.SetBuffer(kernel2, "_Data", _dataBuffer);
shader.SetFloat("_BlendExponent", controller.blendExponent);
shader.SetFloat("_BlendOffset", controller.blendOffset);
shader.SetVectorArray("_maxTessellationStrengths",
controller.materialData.GetMaxTessellationStrengthArray());
}
//Debug.Log("StartX: "+coordinate2D.x * (settings.size - 1));
settings.terrainComputeShader.SetInt("_startX", coordinate2D.x * (settings.size - 1));
settings.terrainComputeShader.SetInt("_startY", coordinate2D.y * (settings.size - 1));
//Init splat RenderTexture
var splatTexture = new RenderTexture(dataSize, dataSize, 0)
{
enableRandomWrite = true, useMipMap = true, filterMode = FilterMode.Bilinear
};
splatTexture.Create();
settings.terrainComputeShader.SetTexture(kernel2, "_splatTexture", splatTexture);
/*if (tile.data.tessellationTexture != null)
* {
* Object.Destroy(tile.data.tessellationTexture);
* }*/
//Init tessellation Texture
var tessellationTexture = new RenderTexture(dataSize, dataSize, 0)
{
enableRandomWrite = true, useMipMap = true, filterMode = FilterMode.Point
};
tessellationTexture.Create();
settings.terrainComputeShader.SetTexture(kernel2, "_tessellationTexture", tessellationTexture);
settings.terrainComputeShader.Dispatch(kernel1, dataSize * dataSize / 8, 1, 1);
settings.terrainComputeShader.Dispatch(kernel2, dataSize * dataSize / 8, 1, 1);
var request = AsyncGPUReadback.Request(_dataBuffer);
yield return(new WaitUntil(() => request.done));
_inputData = request.GetData <TerrainTileVertexData>().ToArray();
//Combine all data into output struct
tile.data = new TerrainTileData
{
locationData = _inputData//, splatTexture = splatTexture, tessellationTexture = tessellationTexture
};
yield return(null);
}