public unsafe override void CreateDeviceObjects(GraphicsDevice gd, CommandList cl, SceneContext sc)
{
ResourceFactory factory = gd.ResourceFactory;
_vb = factory.CreateVertexBuffer(new BufferDescription(s_vertices.SizeInBytes()));
cl.UpdateBuffer(_vb, 0, s_vertices);
_ib = factory.CreateIndexBuffer(new IndexBufferDescription(s_indices.SizeInBytes(), IndexFormat.UInt16));
cl.UpdateBuffer(_ib, 0, s_indices);
_viewMatrixBuffer = factory.CreateUniformBuffer(new BufferDescription((ulong)Unsafe.SizeOf <Matrix4x4>()));
Texture textureCube;
TextureView textureView;
fixed(Rgba32 *frontPin = &_front.DangerousGetPinnableReferenceToPixelBuffer())
fixed(Rgba32 * backPin = &_back.DangerousGetPinnableReferenceToPixelBuffer())
fixed(Rgba32 * leftPin = &_left.DangerousGetPinnableReferenceToPixelBuffer())
fixed(Rgba32 * rightPin = &_right.DangerousGetPinnableReferenceToPixelBuffer())
fixed(Rgba32 * topPin = &_top.DangerousGetPinnableReferenceToPixelBuffer())
fixed(Rgba32 * bottomPin = &_bottom.DangerousGetPinnableReferenceToPixelBuffer())
{
uint width = (uint)_front.Width;
uint height = (uint)_front.Height;
textureCube = factory.CreateTexture(new TextureDescription(
width,
height,
1,
1,
1,
PixelFormat.R8_G8_B8_A8_UNorm,
TextureUsage.Sampled | TextureUsage.Cubemap));
uint faceSize = (uint)(_front.Width * _front.Height * Unsafe.SizeOf <Rgba32>());
cl.UpdateTextureCube(textureCube, (IntPtr)leftPin, faceSize, CubeFace.NegativeX, 0, 0, width, height, 0, 0);
cl.UpdateTextureCube(textureCube, (IntPtr)rightPin, faceSize, CubeFace.PositiveX, 0, 0, width, height, 0, 0);
cl.UpdateTextureCube(textureCube, (IntPtr)bottomPin, faceSize, CubeFace.NegativeY, 0, 0, width, height, 0, 0);
cl.UpdateTextureCube(textureCube, (IntPtr)topPin, faceSize, CubeFace.PositiveY, 0, 0, width, height, 0, 0);
cl.UpdateTextureCube(textureCube, (IntPtr)backPin, faceSize, CubeFace.NegativeZ, 0, 0, width, height, 0, 0);
cl.UpdateTextureCube(textureCube, (IntPtr)frontPin, faceSize, CubeFace.PositiveZ, 0, 0, width, height, 0, 0);
textureView = factory.CreateTextureView(new TextureViewDescription(textureCube));
}
VertexLayoutDescription[] vertexLayouts = new VertexLayoutDescription[]
{
new VertexLayoutDescription(
new VertexElementDescription("Position", VertexElementSemantic.Position, VertexElementFormat.Float3))
};
Shader vs = ShaderHelper.LoadShader(factory, "Skybox", ShaderStages.Vertex);
Shader fs = ShaderHelper.LoadShader(factory, "Skybox", ShaderStages.Fragment);
ShaderStageDescription[] shaderStages = new ShaderStageDescription[]
{
new ShaderStageDescription(ShaderStages.Vertex, vs, "VS"),
new ShaderStageDescription(ShaderStages.Fragment, fs, "VS"),
};
_layout = factory.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription("Projection", ResourceKind.Uniform, ShaderStages.Vertex),
new ResourceLayoutElementDescription("View", ResourceKind.Uniform, ShaderStages.Vertex),
new ResourceLayoutElementDescription("CubeTexture", ResourceKind.Texture, ShaderStages.Fragment),
new ResourceLayoutElementDescription("CubeSampler", ResourceKind.Sampler, ShaderStages.Fragment)));
PipelineDescription pd = new PipelineDescription(
BlendStateDescription.SingleAlphaBlend,
DepthStencilStateDescription.LessEqual,
new RasterizerStateDescription(FaceCullMode.None, TriangleFillMode.Solid, FrontFace.Clockwise, false, true),
PrimitiveTopology.TriangleList,
new ShaderSetDescription(vertexLayouts, shaderStages),
new ResourceLayout[] { _layout },
gd.SwapchainFramebuffer.OutputDescription);
_pipeline = factory.CreatePipeline(ref pd);
_resourceSet = factory.CreateResourceSet(new ResourceSetDescription(
_layout,
sc.ProjectionMatrixBuffer,
_viewMatrixBuffer,
textureView,
gd.PointSampler));
_disposeCollector.Add(_vb, _ib, _viewMatrixBuffer, textureCube, textureView, _layout, _pipeline, _resourceSet, vs, fs);
}
public unsafe override void CreateDeviceObjects(GraphicsDevice gd, CommandList cl, SceneContext sc)
{
ResourceFactory factory = gd.ResourceFactory;
_vb = factory.CreateVertexBuffer(new BufferDescription(VertexPosition.SizeInBytes * 4));
cl.UpdateBuffer(_vb, 0, new VertexPosition[]
{
new VertexPosition(new Vector3(-1000, 0, -1000)),
new VertexPosition(new Vector3(+1000, 0, -1000)),
new VertexPosition(new Vector3(+1000, 0, +1000)),
new VertexPosition(new Vector3(-1000, 0, +1000)),
});
_ib = factory.CreateIndexBuffer(new IndexBufferDescription(6 * 2, IndexFormat.UInt16));
cl.UpdateBuffer(_ib, 0, new ushort[] { 0, 1, 2, 0, 2, 3 });
const int gridSize = 64;
RgbaByte borderColor = new RgbaByte(255, 255, 255, 150);
RgbaByte[] pixels = CreateGridTexturePixels(gridSize, 1, borderColor, new RgbaByte());
Texture gridTexture = factory.CreateTexture(new TextureDescription(gridSize, gridSize, 1, 1, 1, PixelFormat.R8_G8_B8_A8_UNorm, TextureUsage.Sampled));
fixed(RgbaByte *pixelsPtr = pixels)
{
cl.UpdateTexture(gridTexture, (IntPtr)pixelsPtr, pixels.SizeInBytes(), 0, 0, 0, gridSize, gridSize, 1, 0, 0);
}
TextureView textureView = factory.CreateTextureView(new TextureViewDescription(gridTexture));
VertexLayoutDescription[] vertexLayouts = new VertexLayoutDescription[]
{
new VertexLayoutDescription(
new VertexElementDescription("Position", VertexElementSemantic.Position, VertexElementFormat.Float3))
};
Shader gridVS = ShaderHelper.LoadShader(factory, "Grid", ShaderStages.Vertex);
Shader gridFS = ShaderHelper.LoadShader(factory, "Grid", ShaderStages.Fragment);
ShaderStageDescription[] shaderStages = new ShaderStageDescription[]
{
new ShaderStageDescription(ShaderStages.Vertex, gridVS, "VS"),
new ShaderStageDescription(ShaderStages.Fragment, gridFS, "FS"),
};
ResourceLayout layout = factory.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription("Projection", ResourceKind.Uniform, ShaderStages.Vertex),
new ResourceLayoutElementDescription("View", ResourceKind.Uniform, ShaderStages.Vertex),
new ResourceLayoutElementDescription("GridTexture", ResourceKind.Texture, ShaderStages.Fragment),
new ResourceLayoutElementDescription("GridSampler", ResourceKind.Sampler, ShaderStages.Fragment)));
PipelineDescription pd = new PipelineDescription(
BlendStateDescription.SingleAlphaBlend,
DepthStencilStateDescription.LessEqual,
new RasterizerStateDescription(FaceCullMode.None, TriangleFillMode.Solid, FrontFace.Clockwise, true, true),
PrimitiveTopology.TriangleList,
new ShaderSetDescription(vertexLayouts, shaderStages),
new ResourceLayout[] { layout },
gd.SwapchainFramebuffer.OutputDescription);
_pipeline = factory.CreatePipeline(ref pd);
_resourceSet = factory.CreateResourceSet(new ResourceSetDescription(
layout,
sc.ProjectionMatrixBuffer,
sc.ViewMatrixBuffer,
textureView,
gd.PointSampler));
_disposeCollector.Add(_vb, _ib, gridTexture, textureView, gridVS, gridFS, layout, _pipeline, _resourceSet);
}
