public VirtualTextureLoader(string pathName, ComputeShader terrainEditShader, int terrainMaskCount, long resolution, bool is16Bit, MTerrainLoadingThread loadingThread)
{
this.loadingThread = loadingThread;
if (is16Bit)
{
readPass = 4;
writePass = 5;
bitLength = 2;
}
else
{
bitLength = 1;
readPass = 2;
writePass = 3;
}
this.resolution = resolution;
size = resolution * resolution * bitLength;
this.terrainMaskCount = terrainMaskCount;
fileReadBuffer = new byte[size];
maskLoader = new FileStream(pathName, FileMode.OpenOrCreate, FileAccess.ReadWrite);
loadingCommandQueue = new NativeQueue <MaskBuffer>(100, Allocator.Persistent);
this.terrainEditShader = terrainEditShader;
readWriteBuffer = new ComputeBuffer((int)(size / sizeof(uint)), sizeof(uint));
loadingThreadExecutor = () =>
{
MaskBuffer mb;
while (loadingCommandQueue.TryDequeue(out mb))
{
maskLoader.Position = mb.offset;
maskLoader.Read(fileReadBuffer, 0, (int)size);
UnsafeUtility.MemCpy(mb.bytesData, fileReadBuffer.Ptr(), size);
*mb.isFinished = true;
}
};
}
protected override void OnEnableFunc()
{
if (current && current != this)
{
enabled = false;
Debug.LogError("Only One Terrain allowed!");
return;
}
if (!terrainData)
{
enabled = false;
Debug.LogError("No Data!");
return;
}
if (!cam || !decalCamera)
{
enabled = false;
Debug.LogError("No Decal Camera!");
return;
}
initializing = true;
lodOffset = terrainData.GetLodOffset();
largestChunkCount = (int)(0.1 + pow(2.0, lodOffset));
msb = new MStringBuilder(32);
oneVTPixelWorldLength = terrainData.VTTexelLength();
textureShader = Resources.Load <ComputeShader>("ProceduralTexture");
shader = Resources.Load <ComputeShader>("TerrainCompute");
current = this;
int indexMapSize = 1;
for (int i = 1; i < terrainData.lodDistances.Length; ++i)
{
indexMapSize *= 2;
}
vtContainer = new NativeArray <int>(4, Allocator.Persistent, NativeArrayOptions.UninitializedMemory);
maskLoadList = new NativeQueue <MaskLoadCommand>(10, Allocator.Persistent);
ComputeShader editShader = Resources.Load <ComputeShader>("TerrainEdit");
loadingThread = new MTerrainLoadingThread(10);
maskLoader = new VirtualTextureLoader(terrainData.maskmapPath, editShader, largestChunkCount, MASK_RESOLUTION, false, loadingThread);
heightLoader = new VirtualTextureLoader(terrainData.heightmapPath, editShader, largestChunkCount, MASK_RESOLUTION, true, loadingThread);
loadDataList = new NativeQueue <TerrainLoadData>(100, Allocator.Persistent);
initializeLoadList = new NativeQueue <TerrainLoadData>(100, Allocator.Persistent);
NativeArray <uint> dispatchDraw = new NativeArray <uint>(5, Allocator.Temp, NativeArrayOptions.ClearMemory);
dispatchDraw[0] = 6;
VirtualTextureFormat *formats = stackalloc VirtualTextureFormat[]
{
new VirtualTextureFormat((VirtualTextureSize)COLOR_RESOLUTION, GraphicsFormat.R8G8B8A8_UNorm, "_VirtualMainTex", 2),
new VirtualTextureFormat((VirtualTextureSize)COLOR_RESOLUTION, GraphicsFormat.R16G16_SNorm, "_VirtualBumpMap", 2),
new VirtualTextureFormat((VirtualTextureSize)COLOR_RESOLUTION, GraphicsFormat.R8G8_UNorm, "_VirtualSMMap", 2),
new VirtualTextureFormat((VirtualTextureSize)HEIGHT_RESOLUTION, HEIGHT_FORMAT, "_VirtualDisplacement", 0)
};
mipIDs = new NativeArray <int>(2, Allocator.Persistent, NativeArrayOptions.UninitializedMemory);
mipIDs[0] = Shader.PropertyToID("_Mip0");
mipIDs[1] = Shader.PropertyToID("_Mip1");
chunkCount = (int)(pow(2.0, terrainData.lodDistances.Length - 1) + 0.1);
vt = new VirtualTexture(terrainData.virtualTexCapacity, min(2048, chunkCount), formats, 4, "_TerrainVTIndexTex");
textureCapacity = terrainData.virtualTexCapacity;
VirtualTextureFormat *maskFormats = stackalloc VirtualTextureFormat[]
{
new VirtualTextureFormat((VirtualTextureSize)MASK_RESOLUTION, GraphicsFormat.R8_UNorm, "_VirtualMaskmap"),
new VirtualTextureFormat((VirtualTextureSize)MASK_RESOLUTION, GraphicsFormat.R16_UNorm, "_VirtualHeightmap"),
};
maskVT = new VirtualTexture(terrainData.heightmapTexCapacity, largestChunkCount, maskFormats, 2, "_MaskIndexMap");
maskVT.GetTexture(0).filterMode = FilterMode.Point;
maskVT.GetTexture(1).filterMode = FilterMode.Point;
vt.GetTexture(0).filterMode = FilterMode.Trilinear;
vt.GetTexture(1).filterMode = FilterMode.Trilinear;
vt.GetTexture(2).filterMode = FilterMode.Trilinear;
vt.GetTexture(3).filterMode = FilterMode.Bilinear;
allLodLevles = new NativeList_Float(terrainData.lodDistances.Length, Allocator.Persistent);
for (int i = 0; i < terrainData.lodDistances.Length; ++i)
{
allLodLevles.Add((float)min(terrainData.lodDistances[max(0, i - 1)], terrainData.lodDistances[i]));
}
allLodLevles[terrainData.lodDistances.Length] = 0;
meshResolution = terrainData.GetMeshResolution();
cullingFlags = new RenderTexture(new RenderTextureDescriptor
{
graphicsFormat = GraphicsFormat.R8_UNorm,
dimension = TextureDimension.Tex2D,
width = meshResolution,
height = meshResolution,
volumeDepth = 1,
enableRandomWrite = true,
msaaSamples = 1,
useMipMap = false
});
cullingFlags.filterMode = FilterMode.Point;
cullingFlags.Create();
albedoTex = new RenderTexture(new RenderTextureDescriptor
{
graphicsFormat = GraphicsFormat.R8G8B8A8_UNorm,
dimension = TextureDimension.Tex2DArray,
width = COLOR_RESOLUTION,
height = COLOR_RESOLUTION,
volumeDepth = Mathf.Max(1, terrainData.textures.Length),
enableRandomWrite = true,
msaaSamples = 1,
autoGenerateMips = false,
useMipMap = true,
mipCount = 6,
});
albedoTex.Create();
normalTex = new RenderTexture(new RenderTextureDescriptor
{
graphicsFormat = GraphicsFormat.R16G16_SNorm,
dimension = TextureDimension.Tex2DArray,
width = COLOR_RESOLUTION,
height = COLOR_RESOLUTION,
autoGenerateMips = false,
useMipMap = true,
volumeDepth = Mathf.Max(1, terrainData.textures.Length),
enableRandomWrite = true,
msaaSamples = 1,
mipCount = 6,
});
normalTex.Create();
smTex = new RenderTexture(new RenderTextureDescriptor
{
graphicsFormat = GraphicsFormat.R16G16_UNorm,
dimension = TextureDimension.Tex2DArray,
width = COLOR_RESOLUTION,
height = COLOR_RESOLUTION,
volumeDepth = Mathf.Max(1, terrainData.textures.Length),
enableRandomWrite = true,
msaaSamples = 1,
useMipMap = true,
autoGenerateMips = false,
mipCount = 6,
depthBufferBits = 0,
useDynamicScale = false
});
smTex.Create();
/* heightTex = new RenderTexture(new RenderTextureDescriptor
* {
* graphicsFormat = GraphicsFormat.R8_UNorm,
* dimension = TextureDimension.Tex2DArray,
* width = COLOR_RESOLUTION,
* height = COLOR_RESOLUTION,
* volumeDepth = Mathf.Max(1, terrainData.textures.Length),
* enableRandomWrite = true,
* msaaSamples = 1,
* useMipMap = true,
* autoGenerateMips = false,
* mipCount = 6,
* depthBufferBits = 0,
* useDynamicScale = false
* });*/
heightloadingCacheRT = new RenderTexture(new RenderTextureDescriptor
{
width = COLOR_RESOLUTION + 2,
height = COLOR_RESOLUTION + 2,
volumeDepth = 1,
enableRandomWrite = true,
dimension = TextureDimension.Tex2D,
graphicsFormat = GraphicsFormat.R16_UNorm,
msaaSamples = 1,
useMipMap = false,
autoGenerateMips = false,
mipCount = 0,
depthBufferBits = 0,
useDynamicScale = false,
});
randomTileRT = new RenderTexture(256, 256, 0, GraphicsFormat.R16G16B16A16_SNorm, 0);
randomTileRT.enableRandomWrite = true;
randomTileRT.wrapMode = TextureWrapMode.Repeat;
randomTileRT.filterMode = FilterMode.Point;
randomTileRT.Create();
heightloadingCacheRT.Create();
// heightTex.Create();
smTex.wrapMode = TextureWrapMode.Repeat;
normalTex.wrapMode = TextureWrapMode.Repeat;
albedoTex.wrapMode = TextureWrapMode.Repeat;
// heightTex.wrapMode = TextureWrapMode.Repeat;
boundBoxLoadList = new NativeQueue <MaskLoadCommand>(10, Allocator.Persistent);
boundingLoadStream = new FileStream(terrainData.boundPath, FileMode.OpenOrCreate, FileAccess.ReadWrite);
boundingDict = new NativeDictionary <int2, MTerrainBoundingTree, Int2Equal>(20, Allocator.Persistent, new Int2Equal());
InitializeMeshData();
allDrawCommand = new NativeList <TerrainDrawCommand>(20, Allocator.Persistent);
materialBuffer = new ComputeBuffer(max(1, terrainData.allMaterials.Length), sizeof(MTerrainData.HeightBlendMaterial));
materialBuffer.SetData(terrainData.allMaterials);
decalLayerOffset = max(0, terrainData.lodDistances.Length - terrainData.allDecalLayers.Length);
tree = new TerrainQuadTree(-1, TerrainQuadTree.LocalPos.LeftDown, 0, 0, terrainData.largestChunkSize, double3(1, 0, 0), 0);
StartCoroutine(AsyncLoader());
}