public ChunkBuffer()
{
//Setup all buffer allocators
VertexBuffers = new UniformBuffer(false);
BufferAllocators = new BufferAllocator[Sizes.Length];
unsafe
{
long *buf = (long *)VertexBuffers.Update();
for (int i = 0; i < Sizes.Length; i++)
{
BufferAllocators[i] = new BufferAllocator(Sizes[i], Counts[i], false, PixelInternalFormat.Rgba8ui);
buf[i * 2] = BufferAllocators[i].BufferTex.View.GetTextureHandle().SetResidency(Residency.Resident);
}
VertexBuffers.UpdateDone();
}
}
//Deferred Renderer Rework - New GBuffer -
//32:32:32 WorldPos, (16b:SPARE, 16b:materialIdx)
//8:8:8 Norm, 8:SPARE
//reproject z buffer and recompute chain for culling
public DeferredRenderer(Framebuffer[] fbufs, LightManager man)
{
lMan = man;
InfoBindings = new TextureBinding[fbufs.Length];
InfoBindings2 = new TextureBinding[fbufs.Length];
DepthBindings = new TextureBinding[fbufs.Length];
Framebuffers = new Framebuffer[fbufs.Length];
HiZMap = new TextureView[fbufs.Length][];
views = new ViewData[fbufs.Length];
HiZMapUBO = new UniformBuffer(false);
unsafe
{
int off = 0;
float *fp = (float *)HiZMapUBO.Update();
fp += 4;
for (int i = 0; i < views.Length; i++)
{
views[i] = new ViewData()
{
depthBuf = new Texture()
{
Width = fbufs[i].Width,
Height = fbufs[i].Height,
Depth = 1,
Format = PixelInternalFormat.DepthComponent32f,
GenerateMipmaps = false,
LayerCount = 1,
LevelCount = 1,
Target = TextureTarget.Texture2D
}.Build(),
infoTex = new Texture()
{
Width = fbufs[i].Width,
Height = fbufs[i].Height,
Depth = 1,
Format = PixelInternalFormat.Rgba32f,
GenerateMipmaps = false,
LayerCount = 1,
LevelCount = 1,
Target = TextureTarget.Texture2D
}.Build(),
infoTex2 = new Texture()
{
Width = fbufs[i].Width,
Height = fbufs[i].Height,
Depth = 1,
Format = PixelInternalFormat.Rgba8,
GenerateMipmaps = false,
LayerCount = 1,
LevelCount = 1,
Target = TextureTarget.Texture2D
}.Build(),
hiZ = new Texture()
{
Width = fbufs[i].Width,
Height = fbufs[i].Height,
Depth = 1,
Format = PixelInternalFormat.Rg32f,
GenerateMipmaps = false,
LayerCount = 1,
LevelCount = (int)(MathHelper.Log2((ulong)Math.Max(fbufs[i].Width, fbufs[i].Height)) + 1),
Target = TextureTarget.Texture2D
}.Build(),
gbuffer = new Framebuffer(fbufs[i].Width, fbufs[i].Height),
};
views[i].depthView = new TextureView()
{
BaseLayer = 0,
BaseLevel = 0,
Format = PixelInternalFormat.DepthComponent32f,
LayerCount = 1,
LevelCount = 1,
Target = TextureTarget.Texture2D
}.Build(views[i].depthBuf);
views[i].infoView = new TextureView()
{
BaseLayer = 0,
BaseLevel = 0,
Format = PixelInternalFormat.Rgba32f,
LayerCount = 1,
LevelCount = 1,
Target = TextureTarget.Texture2D
}.Build(views[i].infoTex);
views[i].infoView2 = new TextureView()
{
BaseLayer = 0,
BaseLevel = 0,
Format = PixelInternalFormat.Rgba8,
LayerCount = 1,
LevelCount = 1,
Target = TextureTarget.Texture2D
}.Build(views[i].infoTex2);
views[i].hiZView = new TextureView[views[i].hiZ.LevelCount];
for (int j = 0; j < views[i].hiZView.Length; j++)
{
views[i].hiZView[j] = new TextureView()
{
BaseLayer = 0,
BaseLevel = j,
Format = PixelInternalFormat.Rg32f,
LayerCount = 1,
LevelCount = 1,
Target = TextureTarget.Texture2D,
}.Build(views[i].hiZ);
var f_arr = (float[])views[i].hiZView[j].GetImageHandle().SetResidency(Residency.Resident, AccessMode.ReadWrite);
for (int q = 0; q < f_arr.Length; q++)
{
*(fp++) = f_arr[q];
}
fp += 2;
}
views[i].hiZTex = new TextureView()
{
BaseLayer = 0,
BaseLevel = 0,
Format = PixelInternalFormat.Rg32f,
LayerCount = 1,
LevelCount = views[i].hiZView.Length,
Target = TextureTarget.Texture2D
}.Build(views[i].hiZ);
var sampler = new TextureSampler();
sampler.SetEnableLinearFilter(false, true, false);
sampler.MinReadLevel = 0;
sampler.MaxReadLevel = views[i].hiZView.Length;
sampler.SetTileMode(TileMode.ClampToBorder, TileMode.ClampToBorder);
views[i].hiZBinding = new TextureBinding()
{
View = views[i].hiZTex,
Sampler = sampler
};
var f_arr_ = (float[])views[i].hiZBinding.GetTextureHandle().SetResidency(Residency.Resident);
for (int q = 0; q < f_arr_.Length; q++)
{
*(fp++) = f_arr_[q];
}
fp += 2;
views[i].gbuffer[FramebufferAttachment.DepthAttachment] = views[i].depthView;
views[i].gbuffer[FramebufferAttachment.ColorAttachment0] = views[i].infoView;
views[i].gbuffer[FramebufferAttachment.ColorAttachment1] = views[i].infoView2;
Framebuffers[i] = views[i].gbuffer;
views[i].program = new ShaderProgram(
ShaderSource.Load(ShaderType.VertexShader, "Shaders/RenderToTexture/FrameBufferTriangle/vertex.glsl"),
ShaderSource.Load(ShaderType.FragmentShader, "Shaders/RenderToTexture/FrameBufferTriangle/fragment.glsl")
);
views[i].copy = new ShaderProgram(
ShaderSource.Load(ShaderType.ComputeShader, "Shaders/HiZ/copy.glsl", $"#define MIP_COUNT {views[i].hiZView.Length}")
);
views[i].copyState = new RenderState(null, views[i].copy, null, new UniformBuffer[] { Engine.GlobalParameters, HiZMapUBO }, false, false, DepthFunc.Always, InverseDepth.Far, InverseDepth.Near, BlendFactor.SrcAlpha, BlendFactor.OneMinusSrcAlpha, Vector4.Zero, InverseDepth.ClearDepth, CullFaceMode.Back);
views[i].mipchain = new ShaderProgram(
ShaderSource.Load(ShaderType.ComputeShader, "Shaders/HiZ/mipchain.glsl", $"#define MIP_COUNT {views[i].hiZView.Length}")
);
views[i].mipchainState = new RenderState(null, views[i].mipchain, null, new UniformBuffer[] { Engine.GlobalParameters, HiZMapUBO }, false, false, DepthFunc.Always, InverseDepth.Far, InverseDepth.Near, BlendFactor.SrcAlpha, BlendFactor.OneMinusSrcAlpha, Vector4.Zero, InverseDepth.ClearDepth, CullFaceMode.Back);
views[i].state = new RenderState(fbufs[i], views[i].program, null, new UniformBuffer[] { Engine.GlobalParameters }, false, true, DepthFunc.Always, InverseDepth.Far, InverseDepth.Near, BlendFactor.SrcAlpha, BlendFactor.OneMinusSrcAlpha, Vector4.Zero, InverseDepth.ClearDepth, CullFaceMode.None);
InfoBindings[i] = new TextureBinding()
{
View = views[i].infoView,
Sampler = TextureSampler.Default
};
InfoBindings[i].GetTextureHandle().SetResidency(Residency.Resident);
InfoBindings2[i] = new TextureBinding()
{
View = views[i].infoView2,
Sampler = TextureSampler.Default
};
InfoBindings2[i].GetTextureHandle().SetResidency(Residency.Resident);
DepthBindings[i] = new TextureBinding()
{
View = views[i].depthView,
Sampler = TextureSampler.Default,
};
DepthBindings[i].GetTextureHandle().SetResidency(Residency.Resident);
HiZMap[i] = views[i].hiZView;
views[i].cBuffer = new CommandBuffer();
views[i].cBuffer.SetRenderState(views[i].state);
views[i].cBuffer.Draw(PrimitiveType.Triangles, 0, 3, 1, 0);
}
HiZMapUBO.UpdateDone();
}
}