public void BuildMesh()
{
var shader = GameResources.ComputeShader;
var k = shader.FindKernel("Marching");
gridBuffer.SetData(gridData, 0, 0, gridData.Length);
trisBuffer.SetCounterValue(0);
shader.SetInts("m_Size", GameResources.ChunkSize.x, GameResources.ChunkSize.y, GameResources.ChunkSize.z);
shader.SetFloats("m_Isolevel", planet.noiseDesc.Isolevel);
shader.SetBuffer(k, "m_GridPointBuffer", gridBuffer);
shader.SetBuffer(k, "m_TriBuffer", trisBuffer);
shader.GetKernelThreadGroupSizes(k, out uint kx, out uint ky, out uint kz);
var thgx = (int)math.ceil(GameResources.ChunkSize.x / (float)kx);
var thgy = (int)math.ceil(GameResources.ChunkSize.y / (float)ky);
var thgz = (int)math.ceil(GameResources.ChunkSize.z / (float)kz);
shader.Dispatch(k, thgx, thgy, thgz);
ComputeBuffer.CopyCount(trisBuffer, countBuffer, 0);
countBuffer.GetData(countBufferArray, 0, 0, 1);
var tCount = countBufferArray[0];
if (tCount == 0)
{
return;
}
trisBuffer.GetData(trisBufferTempArray, 0, 0, tCount);
var vertices = new NativeArray <Vertex>(tCount * 3, Allocator.Temp, NativeArrayOptions.UninitializedMemory);
var triangles = new NativeArray <Saitama.ProceduralMesh.Triangle>(tCount, Allocator.Temp, NativeArrayOptions.UninitializedMemory);
for (var i = 0; i < tCount; i++)
{
var vIndex = i * 3;
vertices[vIndex] = new Vertex {
pos = trisBufferTempArray[i][0]
};
vertices[vIndex + 1] = new Vertex {
pos = trisBufferTempArray[i][1]
};
vertices[vIndex + 2] = new Vertex {
pos = trisBufferTempArray[i][2]
};
triangles[i] = new Saitama.ProceduralMesh.Triangle(0, 1, 2) + vIndex;
}
mesh.Update(triangles, vertices);
mesh.RecalculateNormals();
UpdateMeshCollider();
}
public void Execute(int i)
{
var vIndex = i * 3;
vertices[vIndex] = new Vertex {
pos = trisBuffer[i][0]
};
vertices[vIndex + 1] = new Vertex {
pos = trisBuffer[i][1]
};
vertices[vIndex + 2] = new Vertex {
pos = trisBuffer[i][2]
};
triangles[i] = new Saitama.ProceduralMesh.Triangle(0, 1, 2) + vIndex;
}
