public GpuShape(VoxelCell[,,] shape)
{
Shape = new GpuShapeInfo
{
Bounds = DiscreteBounds.Of(shape),
Voxels = Gpu.Default.Allocate(Flatten(shape))
};
}
public GpuSpaceBufferContext(uint buffer, DiscreteBounds bounds)
{
CUDAInterop.cuGLRegisterBufferObject(buffer);
_buffer = buffer;
_devicePointer = new deviceptr <VoxelFace>(GetDevicePointer());
_bounds = bounds;
}
public GpuSpace(DiscreteBounds bounds)
{
_buffer = Gl.GenBuffer();
_texture = Gl.GenTexture();
Bounds = bounds;
Gl.BindBuffer(BufferTarget.TextureBuffer, _buffer);
Gl.BufferData(BufferTarget.TextureBuffer, (uint)Marshal.SizeOf <VoxelFace>() * (uint)bounds.Length, null, BufferUsage.DynamicDraw);
}
private static VoxelCell[] Flatten(VoxelCell[,,] shape)
{
var bounds = DiscreteBounds.Of(shape);
var flatShape = new VoxelCell[bounds.Length];
foreach (var coordinates in bounds)
{
flatShape[bounds.Index(coordinates)] = shape.At(coordinates);
}
return(flatShape);
}
public static GpuShape LoadShape(string path, DiscreteBounds size, int borderSize)
{
var normalizedBounds = new Bounds
{
MinX = size.MinX + borderSize,
MinY = size.MinY + borderSize,
MinZ = size.MinZ + borderSize,
MaxX = size.MaxX - borderSize,
MaxY = size.MaxY - borderSize,
MaxZ = size.MaxZ - borderSize,
};
var stlShape = StlReader.LoadShape(path);
var normalizedShape = ShapeNormalizer.NormalizeShape(stlShape, normalizedBounds);
var voxelizedShape = VoxelSpaceBuilder.Build(normalizedShape, size);
return(new GpuShape(voxelizedShape));
}
public void Load()
{
_gpuShape = ShapeLoader.LoadShape("./Examples/ball.stl", DiscreteBounds.OfSize(30, 30, 30), 5);
}
public void Initialize()
{
_box = new Box();
_gpuSpace = new GpuSpace(DiscreteBounds.OfSize(30, 30, 30));
_program = new ShadingProgram();
}