DX11 removal, Surfel GI

version 0.57.0:
- DX11 removed, DX12 is default now on Windows
- graphics interfaces improved:
	- Bindless descriptor support is now assumed
	- GPU Buffers with USAGE_UPLOAD and USAGE_READBACK will be persistently mapped after creation
	- Removed Map/Unmap
	- added BindDynamicConstantBuffer helper function
	- improved AllocateGPU helper function
	- GPU Queries resolving can be done directly into GPUBuffer
	- UpdateBuffer now doesn't synchronize internally, this allows batching updates
	- removed support for bindless constant buffers (uniform buffers)
	- BindConstantBuffer will accept offset
	- RESOURCE_STATES refactor, they can be combined now in the barriers
	- many other refactors
- gbuffer normals removed, implemented visibility buffer
- bindless decals, bindless lightmaps, bindless hair particles, bindless software path tracing
- hair particles path tracing support
- path tracing eye adaption supported
- Surfel GI (experimental)

Editor/PaintToolWindow.cpp

@@ -1,7 +1,7 @@
 #include "stdafx.h"
 #include "Editor.h"
 #include "PaintToolWindow.h"
-#include "shaders/ShaderInterop_Paint.h"
+#include "shaders/ShaderInterop_Renderer.h"
 
 #include <sstream>
 #include <cmath>
@@ -305,22 +305,11 @@ void PaintToolWindow::Update(float dt)
 			// Need to requery this because RecordHistory might swap textures on material:
 			editTexture = GetEditTextureSlot(*material, &uvset);
 
-			static GPUBuffer cbuf;
-			if (!cbuf.IsValid())
-			{
-				GPUBufferDesc desc;
-				desc.BindFlags = BIND_CONSTANT_BUFFER;
-				desc.Usage = USAGE_DYNAMIC;
-				desc.CPUAccessFlags = CPU_ACCESS_WRITE;
-				desc.ByteWidth = sizeof(PaintTextureCB);
-				device->CreateBuffer(&desc, nullptr, &cbuf);
-			}
-
 			device->BindComputeShader(wiRenderer::GetShader(CSTYPE_PAINT_TEXTURE), cmd);
 
 			wiRenderer::BindCommonResources(cmd);
-			device->BindResource(CS, wiTextureHelper::getWhite(), TEXSLOT_ONDEMAND0, cmd);
-			device->BindUAV(CS, &editTexture, 0, cmd);
+			device->BindResource(wiTextureHelper::getWhite(), TEXSLOT_ONDEMAND0, cmd);
+			device->BindUAV(&editTexture, 0, cmd);
 
 			PaintTextureCB cb;
 			cb.xPaintBrushCenter = center;
@@ -328,8 +317,7 @@ void PaintToolWindow::Update(float dt)
 			cb.xPaintBrushAmount = amount;
 			cb.xPaintBrushFalloff = falloff;
 			cb.xPaintBrushColor = color.rgba;
-			device->UpdateBuffer(&cbuf, &cb, cmd);
-			device->BindConstantBuffer(CS, &cbuf, CB_GETBINDSLOT(PaintTextureCB), cmd);
+			device->PushConstants(&cb, sizeof(cb), cmd);
 
 			const uint diameter = cb.xPaintBrushRadius * 2;
 			const uint dispatch_dim = (diameter + PAINT_TEXTURE_BLOCKSIZE - 1) / PAINT_TEXTURE_BLOCKSIZE;
@@ -340,7 +328,6 @@ void PaintToolWindow::Update(float dt)
 			};
 			device->Barrier(barriers, arraysize(barriers), cmd);
 
-			device->UnbindUAVs(0, 1, cmd);
 
 			wiRenderer::GenerateMipChain(editTexture, wiRenderer::MIPGENFILTER::MIPGENFILTER_LINEAR, cmd);
 		}