public void Dispose()
{
verticesBuffer.Dispose();
instanceCountBuffer.Dispose();
resultBuffer.Dispose();
clusterBuffer.Dispose();
removebuffer.Dispose();
heightMapBuffer.Dispose();
referenceBuffer.Dispose();
triangleBuffer.Dispose();
notUsedHeightmapIndices.Dispose();
current = null;
}
public TerrainDrawStreaming(int maximumLength, int meshSize, ComputeShader transformShader)
{
current = this;
if (meshSize % 2 != 0)
{
Debug.LogError("Terrain panel's size should be even number!");
meshSize++;
}
this.meshSize = meshSize;
//Initialize Mesh and triangles
int vertexCount = meshSize + 1;
vertSize = vertexCount;
heightMapSize = vertSize * vertSize;
NativeArray <float2> terrainVertexArray = new NativeArray <float2>(vertexCount * vertexCount, Allocator.Temp, NativeArrayOptions.UninitializedMemory);
float2 *arrPtr = terrainVertexArray.Ptr();
for (int x = 0; x < vertexCount; ++x)
{
for (int y = 0; y < vertexCount; ++y)
{
arrPtr[y * vertexCount + x] = new float2(x, y) / meshSize - new float2(0.5f, 0.5f);
}
}
verticesBuffer = new ComputeBuffer(terrainVertexArray.Length, sizeof(float2));
verticesBuffer.SetData(terrainVertexArray);
heightMapBuffer = new ComputeBuffer(maximumLength * (vertexCount * vertexCount), sizeof(float));
NativeArray <int> triangles = new NativeArray <int>(6 * meshSize * meshSize, Allocator.Temp, NativeArrayOptions.UninitializedMemory);
int *trianglePtr = triangles.Ptr();
for (int x = 0, count = 0; x < meshSize; ++x)
{
for (int y = 0; y < meshSize; ++y)
{
int4 indices = new int4(vertexCount * y + x, vertexCount * (y + 1) + x, vertexCount * y + (x + 1), vertexCount * (y + 1) + (x + 1));
trianglePtr[count] = indices.x;
trianglePtr[count + 1] = indices.y;
trianglePtr[count + 2] = indices.z;
trianglePtr[count + 3] = indices.y;
trianglePtr[count + 4] = indices.w;
trianglePtr[count + 5] = indices.z;
count += 6;
}
}
triangleBuffer = new ComputeBuffer(triangles.Length, sizeof(int));
triangleBuffer.SetData(triangles);
triangles.Dispose();
terrainVertexArray.Dispose();
removebuffer = new ComputeBuffer(100, sizeof(int2));
//Initialize indirect
clusterBuffer = new ComputeBuffer(maximumLength, sizeof(TerrainPanel));
referenceBuffer = new NativeList <ulong>(maximumLength, Allocator.Persistent);
this.transformShader = transformShader;
resultBuffer = new ComputeBuffer(maximumLength, sizeof(int));
instanceCountBuffer = new ComputeBuffer(5, sizeof(int), ComputeBufferType.IndirectArguments);
NativeArray <int> indirect = new NativeArray <int>(5, Allocator.Temp, NativeArrayOptions.ClearMemory);
indirect[0] = triangleBuffer.count;
instanceCountBuffer.SetData(indirect);
indirect.Dispose();
notUsedHeightmapIndices = new NativeList <int>(maximumLength, Allocator.Persistent);
for (int i = 0; i < maximumLength; ++i)
{
notUsedHeightmapIndices.Add(i);
}
}
