TextureSlice and TextureRegion API

lib/RefreshCS

@@ -1 +1 @@
-Subproject commit 031ad4c04781fe4a0d98a177333ebf7764d2fe91
+Subproject commit 020e76782a2aba7861a8e356d1d212a2bffb2d2e

src/Graphics/Bindings/TextureLevelBinding.cs

@@ -1,17 +0,0 @@
-namespace MoonWorks.Graphics
-{
-	/// <summary>
-	/// A texture-level pair to be used when binding compute textures.
-	/// </summary>
-	public struct TextureLevelBinding
-	{
-		public Texture Texture;
-		public uint MipLevel;
-
-		public TextureLevelBinding(Texture texture, uint mipLevel = 0)
-		{
-			Texture = texture;
-			MipLevel = mipLevel;
-		}
-	}
-}

src/Graphics/CommandBuffer.cs

@@ -157,9 +157,9 @@ namespace MoonWorks.Graphics
 #if DEBUG
 			renderPassActive = true;
 			hasDepthStencilAttachment = false;
-			colorAttachmentSampleCount = colorAttachmentInfo.Texture.SampleCount;
+			colorAttachmentSampleCount = colorAttachmentInfo.TextureSlice.Texture.SampleCount;
 			colorAttachmentCount = 1;
-			colorFormatOne = colorAttachmentInfo.Texture.Format;
+			colorFormatOne = colorAttachmentInfo.TextureSlice.Texture.Format;
 #endif
 		}
 
@@ -182,7 +182,7 @@ namespace MoonWorks.Graphics
 			AssertTextureNotNull(colorAttachmentInfoTwo);
 			AssertColorTarget(colorAttachmentInfoTwo);
 
-			AssertSameSampleCount(colorAttachmentInfoOne.Texture, colorAttachmentInfoTwo.Texture);
+			AssertSameSampleCount(colorAttachmentInfoOne.TextureSlice.Texture, colorAttachmentInfoTwo.TextureSlice.Texture);
 #endif
 
 			var refreshColorAttachmentInfos = stackalloc Refresh.ColorAttachmentInfo[2];
@@ -200,10 +200,10 @@ namespace MoonWorks.Graphics
 #if DEBUG
 			renderPassActive = true;
 			hasDepthStencilAttachment = false;
-			colorAttachmentSampleCount = colorAttachmentInfoOne.Texture.SampleCount;
+			colorAttachmentSampleCount = colorAttachmentInfoOne.TextureSlice.Texture.SampleCount;
 			colorAttachmentCount = 2;
-			colorFormatOne = colorAttachmentInfoOne.Texture.Format;
+			colorFormatOne = colorAttachmentInfoOne.TextureSlice.Texture.Format;
-			colorFormatTwo = colorAttachmentInfoTwo.Texture.Format;
+			colorFormatTwo = colorAttachmentInfoTwo.TextureSlice.Texture.Format;
 #endif
 		}
 
@@ -232,8 +232,8 @@ namespace MoonWorks.Graphics
 			AssertTextureNotNull(colorAttachmentInfoThree);
 			AssertColorTarget(colorAttachmentInfoThree);
 
-			AssertSameSampleCount(colorAttachmentInfoOne.Texture, colorAttachmentInfoTwo.Texture);
+			AssertSameSampleCount(colorAttachmentInfoOne.TextureSlice.Texture, colorAttachmentInfoTwo.TextureSlice.Texture);
-			AssertSameSampleCount(colorAttachmentInfoOne.Texture, colorAttachmentInfoThree.Texture);
+			AssertSameSampleCount(colorAttachmentInfoOne.TextureSlice.Texture, colorAttachmentInfoThree.TextureSlice.Texture);
 #endif
 
 			var refreshColorAttachmentInfos = stackalloc Refresh.ColorAttachmentInfo[3];
@@ -252,11 +252,11 @@ namespace MoonWorks.Graphics
 #if DEBUG
 			renderPassActive = true;
 			hasDepthStencilAttachment = false;
-			colorAttachmentSampleCount = colorAttachmentInfoOne.Texture.SampleCount;
+			colorAttachmentSampleCount = colorAttachmentInfoOne.TextureSlice.Texture.SampleCount;
 			colorAttachmentCount = 3;
-			colorFormatOne = colorAttachmentInfoOne.Texture.Format;
+			colorFormatOne = colorAttachmentInfoOne.TextureSlice.Texture.Format;
-			colorFormatTwo = colorAttachmentInfoTwo.Texture.Format;
+			colorFormatTwo = colorAttachmentInfoTwo.TextureSlice.Texture.Format;
-			colorFormatThree = colorAttachmentInfoThree.Texture.Format;
+			colorFormatThree = colorAttachmentInfoThree.TextureSlice.Texture.Format;
 #endif
 		}
 
@@ -290,9 +290,9 @@ namespace MoonWorks.Graphics
 			AssertTextureNotNull(colorAttachmentInfoFour);
 			AssertColorTarget(colorAttachmentInfoFour);
 
-			AssertSameSampleCount(colorAttachmentInfoOne.Texture, colorAttachmentInfoTwo.Texture);
+			AssertSameSampleCount(colorAttachmentInfoOne.TextureSlice.Texture, colorAttachmentInfoTwo.TextureSlice.Texture);
-			AssertSameSampleCount(colorAttachmentInfoOne.Texture, colorAttachmentInfoThree.Texture);
+			AssertSameSampleCount(colorAttachmentInfoOne.TextureSlice.Texture, colorAttachmentInfoThree.TextureSlice.Texture);
-			AssertSameSampleCount(colorAttachmentInfoOne.Texture, colorAttachmentInfoFour.Texture);
+			AssertSameSampleCount(colorAttachmentInfoOne.TextureSlice.Texture, colorAttachmentInfoFour.TextureSlice.Texture);
 #endif
 
 			var refreshColorAttachmentInfos = stackalloc Refresh.ColorAttachmentInfo[4];
@@ -312,12 +312,12 @@ namespace MoonWorks.Graphics
 #if DEBUG
 			renderPassActive = true;
 			hasDepthStencilAttachment = false;
-			colorAttachmentSampleCount = colorAttachmentInfoOne.Texture.SampleCount;
+			colorAttachmentSampleCount = colorAttachmentInfoOne.TextureSlice.Texture.SampleCount;
 			colorAttachmentCount = 4;
-			colorFormatOne = colorAttachmentInfoOne.Texture.Format;
+			colorFormatOne = colorAttachmentInfoOne.TextureSlice.Texture.Format;
-			colorFormatTwo = colorAttachmentInfoTwo.Texture.Format;
+			colorFormatTwo = colorAttachmentInfoTwo.TextureSlice.Texture.Format;
-			colorFormatThree = colorAttachmentInfoThree.Texture.Format;
+			colorFormatThree = colorAttachmentInfoThree.TextureSlice.Texture.Format;
-			colorFormatFour = colorAttachmentInfoFour.Texture.Format;
+			colorFormatFour = colorAttachmentInfoFour.TextureSlice.Texture.Format;
 #endif
 		}
 
@@ -348,8 +348,8 @@ namespace MoonWorks.Graphics
 #if DEBUG
 			renderPassActive = true;
 			hasDepthStencilAttachment = true;
-			depthStencilAttachmentSampleCount = depthStencilAttachmentInfo.Texture.SampleCount;
+			depthStencilAttachmentSampleCount = depthStencilAttachmentInfo.TextureSlice.Texture.SampleCount;
-			depthStencilFormat = depthStencilAttachmentInfo.Texture.Format;
+			depthStencilFormat = depthStencilAttachmentInfo.TextureSlice.Texture.Format;
 #endif
 		}
 
@@ -370,7 +370,7 @@ namespace MoonWorks.Graphics
 
 			AssertTextureNotNull(colorAttachmentInfo);
 			AssertColorTarget(colorAttachmentInfo);
-			AssertSameSampleCount(colorAttachmentInfo.Texture, depthStencilAttachmentInfo.Texture);
+			AssertSameSampleCount(colorAttachmentInfo.TextureSlice.Texture, depthStencilAttachmentInfo.TextureSlice.Texture);
 #endif
 
 			var refreshColorAttachmentInfos = stackalloc Refresh.ColorAttachmentInfo[1];
@@ -389,11 +389,11 @@ namespace MoonWorks.Graphics
 #if DEBUG
 			renderPassActive = true;
 			hasDepthStencilAttachment = true;
-			colorAttachmentSampleCount = colorAttachmentInfo.Texture.SampleCount;
+			colorAttachmentSampleCount = colorAttachmentInfo.TextureSlice.Texture.SampleCount;
 			colorAttachmentCount = 1;
-			depthStencilAttachmentSampleCount = depthStencilAttachmentInfo.Texture.SampleCount;
+			depthStencilAttachmentSampleCount = depthStencilAttachmentInfo.TextureSlice.Texture.SampleCount;
-			colorFormatOne = colorAttachmentInfo.Texture.Format;
+			colorFormatOne = colorAttachmentInfo.TextureSlice.Texture.Format;
-			depthStencilFormat = depthStencilAttachmentInfo.Texture.Format;
+			depthStencilFormat = depthStencilAttachmentInfo.TextureSlice.Texture.Format;
 #endif
 		}
 
@@ -420,8 +420,8 @@ namespace MoonWorks.Graphics
 			AssertTextureNotNull(colorAttachmentInfoTwo);
 			AssertColorTarget(colorAttachmentInfoTwo);
 
-			AssertSameSampleCount(colorAttachmentInfoOne.Texture, colorAttachmentInfoTwo.Texture);
+			AssertSameSampleCount(colorAttachmentInfoOne.TextureSlice.Texture, colorAttachmentInfoTwo.TextureSlice.Texture);
-			AssertSameSampleCount(colorAttachmentInfoOne.Texture, depthStencilAttachmentInfo.Texture);
+			AssertSameSampleCount(colorAttachmentInfoOne.TextureSlice.Texture, depthStencilAttachmentInfo.TextureSlice.Texture);
 #endif
 
 			var refreshColorAttachmentInfos = stackalloc Refresh.ColorAttachmentInfo[2];
@@ -441,11 +441,11 @@ namespace MoonWorks.Graphics
 #if DEBUG
 			renderPassActive = true;
 			hasDepthStencilAttachment = true;
-			colorAttachmentSampleCount = colorAttachmentInfoOne.Texture.SampleCount;
+			colorAttachmentSampleCount = colorAttachmentInfoOne.TextureSlice.Texture.SampleCount;
 			colorAttachmentCount = 2;
-			colorFormatOne = colorAttachmentInfoOne.Texture.Format;
+			colorFormatOne = colorAttachmentInfoOne.TextureSlice.Texture.Format;
-			colorFormatTwo = colorAttachmentInfoTwo.Texture.Format;
+			colorFormatTwo = colorAttachmentInfoTwo.TextureSlice.Texture.Format;
-			depthStencilFormat = depthStencilAttachmentInfo.Texture.Format;
+			depthStencilFormat = depthStencilAttachmentInfo.TextureSlice.Texture.Format;
 #endif
 		}
 
@@ -477,9 +477,9 @@ namespace MoonWorks.Graphics
 			AssertTextureNotNull(colorAttachmentInfoThree);
 			AssertColorTarget(colorAttachmentInfoThree);
 
-			AssertSameSampleCount(colorAttachmentInfoOne.Texture, colorAttachmentInfoTwo.Texture);
+			AssertSameSampleCount(colorAttachmentInfoOne.TextureSlice.Texture, colorAttachmentInfoTwo.TextureSlice.Texture);
-			AssertSameSampleCount(colorAttachmentInfoOne.Texture, colorAttachmentInfoTwo.Texture);
+			AssertSameSampleCount(colorAttachmentInfoOne.TextureSlice.Texture, colorAttachmentInfoTwo.TextureSlice.Texture);
-			AssertSameSampleCount(colorAttachmentInfoOne.Texture, depthStencilAttachmentInfo.Texture);
+			AssertSameSampleCount(colorAttachmentInfoOne.TextureSlice.Texture, depthStencilAttachmentInfo.TextureSlice.Texture);
 #endif
 
 			var refreshColorAttachmentInfos = stackalloc Refresh.ColorAttachmentInfo[3];
@@ -500,12 +500,12 @@ namespace MoonWorks.Graphics
 #if DEBUG
 			renderPassActive = true;
 			hasDepthStencilAttachment = true;
-			colorAttachmentSampleCount = colorAttachmentInfoOne.Texture.SampleCount;
+			colorAttachmentSampleCount = colorAttachmentInfoOne.TextureSlice.Texture.SampleCount;
 			colorAttachmentCount = 3;
-			colorFormatOne = colorAttachmentInfoOne.Texture.Format;
+			colorFormatOne = colorAttachmentInfoOne.TextureSlice.Texture.Format;
-			colorFormatTwo = colorAttachmentInfoTwo.Texture.Format;
+			colorFormatTwo = colorAttachmentInfoTwo.TextureSlice.Texture.Format;
-			colorFormatThree = colorAttachmentInfoThree.Texture.Format;
+			colorFormatThree = colorAttachmentInfoThree.TextureSlice.Texture.Format;
-			depthStencilFormat = depthStencilAttachmentInfo.Texture.Format;
+			depthStencilFormat = depthStencilAttachmentInfo.TextureSlice.Texture.Format;
 #endif
 		}
 
@@ -542,10 +542,10 @@ namespace MoonWorks.Graphics
 			AssertTextureNotNull(colorAttachmentInfoFour);
 			AssertColorTarget(colorAttachmentInfoFour);
 
-			AssertSameSampleCount(colorAttachmentInfoOne.Texture, colorAttachmentInfoTwo.Texture);
+			AssertSameSampleCount(colorAttachmentInfoOne.TextureSlice.Texture, colorAttachmentInfoTwo.TextureSlice.Texture);
-			AssertSameSampleCount(colorAttachmentInfoOne.Texture, colorAttachmentInfoThree.Texture);
+			AssertSameSampleCount(colorAttachmentInfoOne.TextureSlice.Texture, colorAttachmentInfoThree.TextureSlice.Texture);
-			AssertSameSampleCount(colorAttachmentInfoOne.Texture, colorAttachmentInfoFour.Texture);
+			AssertSameSampleCount(colorAttachmentInfoOne.TextureSlice.Texture, colorAttachmentInfoFour.TextureSlice.Texture);
-			AssertSameSampleCount(colorAttachmentInfoOne.Texture, depthStencilAttachmentInfo.Texture);
+			AssertSameSampleCount(colorAttachmentInfoOne.TextureSlice.Texture, depthStencilAttachmentInfo.TextureSlice.Texture);
 #endif
 
 			var refreshColorAttachmentInfos = stackalloc Refresh.ColorAttachmentInfo[4];
@@ -567,13 +567,13 @@ namespace MoonWorks.Graphics
 #if DEBUG
 			renderPassActive = true;
 			hasDepthStencilAttachment = true;
-			colorAttachmentSampleCount = colorAttachmentInfoOne.Texture.SampleCount;
+			colorAttachmentSampleCount = colorAttachmentInfoOne.TextureSlice.Texture.SampleCount;
 			colorAttachmentCount = 4;
-			colorFormatOne = colorAttachmentInfoOne.Texture.Format;
+			colorFormatOne = colorAttachmentInfoOne.TextureSlice.Texture.Format;
-			colorFormatTwo = colorAttachmentInfoTwo.Texture.Format;
+			colorFormatTwo = colorAttachmentInfoTwo.TextureSlice.Texture.Format;
-			colorFormatThree = colorAttachmentInfoThree.Texture.Format;
+			colorFormatThree = colorAttachmentInfoThree.TextureSlice.Texture.Format;
-			colorFormatFour = colorAttachmentInfoFour.Texture.Format;
+			colorFormatFour = colorAttachmentInfoFour.TextureSlice.Texture.Format;
-			depthStencilFormat = depthStencilAttachmentInfo.Texture.Format;
+			depthStencilFormat = depthStencilAttachmentInfo.TextureSlice.Texture.Format;
 #endif
 		}
 
@@ -1662,9 +1662,9 @@ namespace MoonWorks.Graphics
 		/// <summary>
 		/// Binds a texture to be used in the compute shader.
 		/// </summary>
-		/// <param name="binding">A texture-level pair to bind.</param>
+		/// <param name="slice">A texture slice to bind.</param>
 		public unsafe void BindComputeTextures(
-			TextureLevelBinding binding
+			TextureSlice slice
 		) {
 #if DEBUG
 			AssertNotSubmitted();
@@ -1673,28 +1673,24 @@ namespace MoonWorks.Graphics
 			AssertComputeTextureCount(1);
 #endif
 
-			var texturePtrs = stackalloc IntPtr[1];
+			var textureSlicePtrs = stackalloc Refresh.TextureSlice[1];
-			texturePtrs[0] = binding.Texture.Handle;
+			textureSlicePtrs[0] = slice.ToRefreshTextureSlice();
-
-			var mipLevels = stackalloc uint[1];
-			mipLevels[0] = binding.MipLevel;
 
 			Refresh.Refresh_BindComputeTextures(
 				Device.Handle,
 				Handle,
-				(IntPtr) texturePtrs,
+				(IntPtr) textureSlicePtrs
-				(IntPtr) mipLevels
 			);
 		}
 
 		/// <summary>
 		/// Binds textures to be used in the compute shader.
 		/// </summary>
-		/// <param name="bindingOne">A texture-level pair to bind.</param>
+		/// <param name="sliceOne">A texture-level pair to bind.</param>
-		/// <param name="bindingTwo">A texture-level pair to bind.</param>
+		/// <param name="sliceTwo">A texture-level pair to bind.</param>
 		public unsafe void BindComputeTextures(
-			TextureLevelBinding bindingOne,
+			TextureSlice sliceOne,
-			TextureLevelBinding bindingTwo
+			TextureSlice sliceTwo
 		) {
 #if DEBUG
 			AssertNotSubmitted();
@@ -1703,32 +1699,27 @@ namespace MoonWorks.Graphics
 			AssertComputeTextureCount(2);
 #endif
 
-			var texturePtrs = stackalloc IntPtr[2];
+			var textureSlicePtrs = stackalloc Refresh.TextureSlice[2];
-			texturePtrs[0] = bindingOne.Texture.Handle;
+			textureSlicePtrs[0] = sliceOne.ToRefreshTextureSlice();
-			texturePtrs[1] = bindingTwo.Texture.Handle;
+			textureSlicePtrs[1] = sliceTwo.ToRefreshTextureSlice();
-
-			var mipLevels = stackalloc uint[2];
-			mipLevels[0] = bindingOne.MipLevel;
-			mipLevels[1] = bindingTwo.MipLevel;
 
 			Refresh.Refresh_BindComputeTextures(
 				Device.Handle,
 				Handle,
-				(IntPtr) texturePtrs,
+				(IntPtr) textureSlicePtrs
-				(IntPtr) mipLevels
 			);
 		}
 
 		/// <summary>
 		/// Binds textures to be used in the compute shader.
 		/// </summary>
-		/// <param name="bindingOne">A texture-level pair to bind.</param>
+		/// <param name="sliceOne">A texture-level pair to bind.</param>
-		/// <param name="bindingTwo">A texture-level pair to bind.</param>
+		/// <param name="sliceTwo">A texture-level pair to bind.</param>
-		/// <param name="bindingThree">A texture-level pair to bind.</param>
+		/// <param name="sliceThree">A texture-level pair to bind.</param>
 		public unsafe void BindComputeTextures(
-			TextureLevelBinding bindingOne,
+			TextureSlice sliceOne,
-			TextureLevelBinding bindingTwo,
+			TextureSlice sliceTwo,
-			TextureLevelBinding bindingThree
+			TextureSlice sliceThree
 		) {
 #if DEBUG
 			AssertNotSubmitted();
@@ -1737,36 +1728,30 @@ namespace MoonWorks.Graphics
 			AssertComputeTextureCount(3);
 #endif
 
-			var texturePtrs = stackalloc IntPtr[3];
+			var textureSlicePtrs = stackalloc Refresh.TextureSlice[3];
-			texturePtrs[0] = bindingOne.Texture.Handle;
+			textureSlicePtrs[0] = sliceOne.ToRefreshTextureSlice();
-			texturePtrs[1] = bindingTwo.Texture.Handle;
+			textureSlicePtrs[1] = sliceTwo.ToRefreshTextureSlice();
-			texturePtrs[2] = bindingThree.Texture.Handle;
+			textureSlicePtrs[2] = sliceThree.ToRefreshTextureSlice();
-
-			var mipLevels = stackalloc uint[3];
-			mipLevels[0] = bindingOne.MipLevel;
-			mipLevels[1] = bindingTwo.MipLevel;
-			mipLevels[2] = bindingThree.MipLevel;
 
 			Refresh.Refresh_BindComputeTextures(
 				Device.Handle,
 				Handle,
-				(IntPtr) texturePtrs,
+				(IntPtr) textureSlicePtrs
-				(IntPtr) mipLevels
 			);
 		}
 
 		/// <summary>
 		/// Binds textures to be used in the compute shader.
 		/// </summary>
-		/// <param name="bindingOne">A texture-level pair to bind.</param>
+		/// <param name="sliceOne">A texture-level pair to bind.</param>
-		/// <param name="bindingTwo">A texture-level pair to bind.</param>
+		/// <param name="sliceTwo">A texture-level pair to bind.</param>
-		/// <param name="bindingThree">A texture-level pair to bind.</param>
+		/// <param name="sliceThree">A texture-level pair to bind.</param>
-		/// <param name="bindingFour">A texture-level pair to bind.</param>
+		/// <param name="sliceFour">A texture-level pair to bind.</param>
 		public unsafe void BindComputeTextures(
-			TextureLevelBinding bindingOne,
+			TextureSlice sliceOne,
-			TextureLevelBinding bindingTwo,
+			TextureSlice sliceTwo,
-			TextureLevelBinding bindingThree,
+			TextureSlice sliceThree,
-			TextureLevelBinding bindingFour
+			TextureSlice sliceFour
 		) {
 #if DEBUG
 			AssertNotSubmitted();
@@ -1775,55 +1760,49 @@ namespace MoonWorks.Graphics
 			AssertComputeTextureCount(4);
 #endif
 
-			var texturePtrs = stackalloc IntPtr[4];
+			var textureSlicePtrs = stackalloc Refresh.TextureSlice[4];
-			texturePtrs[0] = bindingOne.Texture.Handle;
+			textureSlicePtrs[0] = sliceOne.ToRefreshTextureSlice();
-			texturePtrs[1] = bindingTwo.Texture.Handle;
+			textureSlicePtrs[1] = sliceTwo.ToRefreshTextureSlice();
-			texturePtrs[2] = bindingThree.Texture.Handle;
+			textureSlicePtrs[2] = sliceThree.ToRefreshTextureSlice();
-			texturePtrs[3] = bindingFour.Texture.Handle;
+			textureSlicePtrs[3] = sliceFour.ToRefreshTextureSlice();
-
-			var mipLevels = stackalloc uint[4];
-			mipLevels[0] = bindingOne.MipLevel;
-			mipLevels[1] = bindingTwo.MipLevel;
-			mipLevels[2] = bindingThree.MipLevel;
-			mipLevels[3] = bindingFour.MipLevel;
 
 			Refresh.Refresh_BindComputeTextures(
 				Device.Handle,
 				Handle,
-				(IntPtr) texturePtrs,
+				(IntPtr) textureSlicePtrs
-				(IntPtr) mipLevels
 			);
 		}
 
 		/// <summary>
 		/// Binds textures to be used in the compute shader.
 		/// </summary>
-		/// <param name="bindings">A set of texture-level pairs to bind.</param>
+		/// <param name="slices">A set of texture-level pairs to bind.</param>
 		public unsafe void BindComputeTextures(
-			in Span<TextureLevelBinding> bindings
+			in Span<TextureSlice> slices
 		) {
 #if DEBUG
 			AssertNotSubmitted();
 			AssertInComputePass("Cannot bind compute textures outside of compute pass!");
 			AssertComputePipelineBound();
-			AssertComputeTextureCount(bindings.Length);
+			AssertComputeTextureCount(slices.Length);
 #endif
 
-			var texturePtrs = stackalloc IntPtr[bindings.Length];
+			Refresh.TextureSlice* textureSlicePtrs = (Refresh.TextureSlice*) NativeMemory.Alloc(
-			var mipLevels = stackalloc uint[bindings.Length];
+				(nuint) (Marshal.SizeOf<Refresh.TextureSlice>() * slices.Length)
+			);
 
-			for (var i = 0; i < bindings.Length; i += 1)
+			for (var i = 0; i < slices.Length; i += 1)
 			{
-				texturePtrs[i] = bindings[i].Texture.Handle;
+				textureSlicePtrs[i] = slices[i].ToRefreshTextureSlice();
-				mipLevels[i] = bindings[i].MipLevel;
 			}
 
 			Refresh.Refresh_BindComputeTextures(
 				Device.Handle,
 				Handle,
-				(IntPtr) texturePtrs,
+				(IntPtr) textureSlicePtrs
-				(IntPtr) mipLevels
 			);
+
+			NativeMemory.Free(textureSlicePtrs);
 		}
 
 		/// <summary>
@@ -1948,7 +1927,7 @@ namespace MoonWorks.Graphics
 		/// </summary>
 		public void UploadToTexture(
 			TransferBuffer transferBuffer,
-			in TextureSlice textureSlice,
+			in TextureRegion textureRegion,
 			in BufferImageCopy copyParams,
 			CopyOptions option
 		)
@@ -1956,14 +1935,14 @@ namespace MoonWorks.Graphics
 #if DEBUG
 			AssertNotSubmitted();
 			AssertInCopyPass("Cannot upload to texture outside of copy pass!");
-			AssertBufferBoundsCheck(transferBuffer.Size, copyParams.BufferOffset, textureSlice.Size);
+			AssertBufferBoundsCheck(transferBuffer.Size, copyParams.BufferOffset, textureRegion.Size);
 #endif
 
 			Refresh.Refresh_UploadToTexture(
 				Device.Handle,
 				Handle,
 				transferBuffer.Handle,
-				textureSlice.ToRefreshTextureSlice(),
+				textureRegion.ToRefreshTextureRegion(),
 				copyParams.ToRefresh(),
 				(Refresh.CopyOptions) option
 			);
@@ -1979,7 +1958,7 @@ namespace MoonWorks.Graphics
 		) {
 			UploadToTexture(
 				transferBuffer,
-				new TextureSlice(texture),
+				new TextureRegion(texture),
 				new BufferImageCopy(0, 0, 0),
 				option
 			);
@@ -2070,7 +2049,7 @@ namespace MoonWorks.Graphics
 		/// fully copied until the command buffer has finished execution.
 		/// </summary>
 		public void DownloadFromTexture(
-			in TextureSlice textureSlice,
+			in TextureRegion textureRegion,
 			TransferBuffer transferBuffer,
 			in BufferImageCopy copyParams,
 			TransferOptions option
@@ -2078,13 +2057,13 @@ namespace MoonWorks.Graphics
 #if DEBUG
 			AssertNotSubmitted();
 			AssertInCopyPass("Cannot download from texture outside of copy pass!");
-			AssertBufferBoundsCheck(transferBuffer.Size, copyParams.BufferOffset, textureSlice.Size);
+			AssertBufferBoundsCheck(transferBuffer.Size, copyParams.BufferOffset, textureRegion.Size);
 #endif
 
 			Refresh.Refresh_DownloadFromTexture(
 				Device.Handle,
 				Handle,
-				textureSlice.ToRefreshTextureSlice(),
+				textureRegion.ToRefreshTextureRegion(),
 				transferBuffer.Handle,
 				copyParams.ToRefresh(),
 				(Refresh.TransferOptions) option
@@ -2100,7 +2079,7 @@ namespace MoonWorks.Graphics
 			TransferOptions option
 		) {
 			DownloadFromTexture(
-				new TextureSlice(texture),
+				new TextureRegion(texture),
 				transferBuffer,
 				new BufferImageCopy(0, 0, 0),
 				option
@@ -2164,8 +2143,8 @@ namespace MoonWorks.Graphics
 		/// You MAY assume that the copy has finished in subsequent commands.
 		/// </summary>
 		public void CopyTextureToTexture(
-			in TextureSlice source,
+			in TextureRegion source,
-			in TextureSlice destination,
+			in TextureRegion destination,
 			CopyOptions option
 		) {
 #if DEBUG
@@ -2177,8 +2156,8 @@ namespace MoonWorks.Graphics
 			Refresh.Refresh_CopyTextureToTexture(
 				Device.Handle,
 				Handle,
-				source.ToRefreshTextureSlice(),
+				source.ToRefreshTextureRegion(),
-				destination.ToRefreshTextureSlice(),
+				destination.ToRefreshTextureRegion(),
 				(Refresh.CopyOptions) option
 			);
 		}
@@ -2193,8 +2172,8 @@ namespace MoonWorks.Graphics
 			CopyOptions option
 		) {
 			CopyTextureToTexture(
-				new TextureSlice(source),
+				new TextureRegion(source),
-				new TextureSlice(destination),
+				new TextureRegion(destination),
 				option
 			);
 		}
@@ -2206,7 +2185,7 @@ namespace MoonWorks.Graphics
 		/// You MAY assume that the copy has finished in subsequent commands.
 		/// </summary>
 		public void CopyTextureToBuffer(
-			in TextureSlice textureSlice,
+			in TextureRegion textureRegion,
 			GpuBuffer buffer,
 			in BufferImageCopy copyParams,
 			CopyOptions option
@@ -2214,13 +2193,13 @@ namespace MoonWorks.Graphics
 #if DEBUG
 			AssertNotSubmitted();
 			AssertInCopyPass("Cannot download from texture outside of copy pass!");
-			AssertBufferBoundsCheck(buffer.Size, copyParams.BufferOffset, textureSlice.Size);
+			AssertBufferBoundsCheck(buffer.Size, copyParams.BufferOffset, textureRegion.Size);
 #endif
 
 			Refresh.Refresh_CopyTextureToBuffer(
 				Device.Handle,
 				Handle,
-				textureSlice.ToRefreshTextureSlice(),
+				textureRegion.ToRefreshTextureRegion(),
 				buffer.Handle,
 				copyParams.ToRefresh(),
 				(Refresh.CopyOptions) option
@@ -2236,7 +2215,7 @@ namespace MoonWorks.Graphics
 			CopyOptions option
 		) {
 			CopyTextureToBuffer(
-				new TextureSlice(texture),
+				new TextureRegion(texture),
 				buffer,
 				new BufferImageCopy(0, 0, 0),
 				option
@@ -2251,21 +2230,21 @@ namespace MoonWorks.Graphics
 		/// </summary>
 		public void CopyBufferToTexture(
 			GpuBuffer gpuBuffer,
-			in TextureSlice textureSlice,
+			in TextureRegion textureRegion,
 			in BufferImageCopy copyParams,
 			CopyOptions option
 		) {
 #if DEBUG
 			AssertNotSubmitted();
 			AssertInCopyPass("Cannot download from texture outside of copy pass!");
-			AssertBufferBoundsCheck(gpuBuffer.Size, copyParams.BufferOffset, textureSlice.Size);
+			AssertBufferBoundsCheck(gpuBuffer.Size, copyParams.BufferOffset, textureRegion.Size);
 #endif
 
 			Refresh.Refresh_CopyBufferToTexture(
 				Device.Handle,
 				Handle,
 				gpuBuffer.Handle,
-				textureSlice.ToRefreshTextureSlice(),
+				textureRegion.ToRefreshTextureRegion(),
 				copyParams.ToRefresh(),
 				(Refresh.CopyOptions) option
 			);
@@ -2281,7 +2260,7 @@ namespace MoonWorks.Graphics
 		) {
 			CopyBufferToTexture(
 				buffer,
-				new TextureSlice(texture),
+				new TextureRegion(texture),
 				new BufferImageCopy(0, 0, 0),
 				option
 			);
@@ -2458,7 +2437,7 @@ namespace MoonWorks.Graphics
 
 		private void AssertTextureNotNull(ColorAttachmentInfo colorAttachmentInfo)
 		{
-			if (colorAttachmentInfo.Texture == null || colorAttachmentInfo.Texture.Handle == IntPtr.Zero)
+			if (colorAttachmentInfo.TextureSlice.Texture == null || colorAttachmentInfo.TextureSlice.Texture.Handle == IntPtr.Zero)
 			{
 				throw new System.ArgumentException("Render pass color attachment Texture cannot be null!");
 			}
@@ -2466,7 +2445,7 @@ namespace MoonWorks.Graphics
 
 		private void AssertColorTarget(ColorAttachmentInfo colorAttachmentInfo)
 		{
-			if ((colorAttachmentInfo.Texture.UsageFlags & TextureUsageFlags.ColorTarget) == 0)
+			if ((colorAttachmentInfo.TextureSlice.Texture.UsageFlags & TextureUsageFlags.ColorTarget) == 0)
 			{
 				throw new System.ArgumentException("Render pass color attachment UsageFlags must include TextureUsageFlags.ColorTarget!");
 			}
@@ -2482,13 +2461,13 @@ namespace MoonWorks.Graphics
 
 		private void AssertValidDepthAttachment(DepthStencilAttachmentInfo depthStencilAttachmentInfo)
 		{
-			if (depthStencilAttachmentInfo.Texture == null ||
+			if (depthStencilAttachmentInfo.TextureSlice.Texture == null ||
-				depthStencilAttachmentInfo.Texture.Handle == IntPtr.Zero)
+				depthStencilAttachmentInfo.TextureSlice.Texture.Handle == IntPtr.Zero)
 			{
 				throw new System.ArgumentException("Render pass depth stencil attachment Texture cannot be null!");
 			}
 
-			if ((depthStencilAttachmentInfo.Texture.UsageFlags & TextureUsageFlags.DepthStencilTarget) == 0)
+			if ((depthStencilAttachmentInfo.TextureSlice.Texture.UsageFlags & TextureUsageFlags.DepthStencilTarget) == 0)
 			{
 				throw new System.ArgumentException("Render pass depth stencil attachment UsageFlags must include TextureUsageFlags.DepthStencilTarget!");
 			}

src/Graphics/RefreshStructs.cs

@@ -174,40 +174,33 @@ namespace MoonWorks.Graphics
 		}
 	}
 
-	[StructLayout(LayoutKind.Sequential)]
 	public struct ColorAttachmentInfo
 	{
-		public Texture Texture;
+		public TextureSlice TextureSlice;
-		public uint Depth;
-		public uint Layer;
-		public uint Level;
 		public Color ClearColor;
 		public LoadOp LoadOp;
 		public StoreOp StoreOp;
+		public bool SafeDiscard;
 
 		public ColorAttachmentInfo(
-			Texture texture,
+			TextureSlice textureSlice,
 			Color clearColor,
+			bool safeDiscard = true,
 			StoreOp storeOp = StoreOp.Store
 		) {
-			Texture = texture;
+			TextureSlice = textureSlice;
-			Depth = 0;
-			Layer = 0;
-			Level = 0;
 			ClearColor = clearColor;
 			LoadOp = LoadOp.Clear;
 			StoreOp = storeOp;
+			SafeDiscard = safeDiscard;
 		}
 
 		public ColorAttachmentInfo(
-			Texture texture,
+			TextureSlice textureSlice,
 			LoadOp loadOp = LoadOp.DontCare,
 			StoreOp storeOp = StoreOp.Store
 		) {
-			Texture = texture;
+			TextureSlice = textureSlice;
-			Depth = 0;
-			Layer = 0;
-			Level = 0;
 			ClearColor = Color.White;
 			LoadOp = loadOp;
 			StoreOp = storeOp;
@@ -217,10 +210,7 @@ namespace MoonWorks.Graphics
 		{
 			return new Refresh.ColorAttachmentInfo
 			{
-				texture = Texture.Handle,
+				textureSlice = TextureSlice.ToRefreshTextureSlice(),
-				depth = Depth,
-				layer = Layer,
-				level = Level,
 				clearColor = new Refresh.Vec4
 				{
 					x = ClearColor.R / 255f,
@@ -229,53 +219,46 @@ namespace MoonWorks.Graphics
 					w = ClearColor.A / 255f
 				},
 				loadOp = (Refresh.LoadOp) LoadOp,
-				storeOp = (Refresh.StoreOp) StoreOp
+				storeOp = (Refresh.StoreOp) StoreOp,
+				safeDiscard = Conversions.BoolToByte(SafeDiscard)
 			};
 		}
 	}
 
-	[StructLayout(LayoutKind.Sequential)]
 	public struct DepthStencilAttachmentInfo
 	{
-		public Texture Texture;
+		public TextureSlice TextureSlice;
-		public uint Depth;
-		public uint Layer;
-		public uint Level;
 		public DepthStencilValue DepthStencilClearValue;
 		public LoadOp LoadOp;
 		public StoreOp StoreOp;
 		public LoadOp StencilLoadOp;
 		public StoreOp StencilStoreOp;
+		public bool SafeDiscard;
 
 		public DepthStencilAttachmentInfo(
-			Texture texture,
+			TextureSlice textureSlice,
 			DepthStencilValue clearValue,
+			bool safeDiscard = true,
 			StoreOp depthStoreOp = StoreOp.Store,
 			StoreOp stencilStoreOp = StoreOp.Store
-		)
+		){
-		{
+			TextureSlice = textureSlice;
-			Texture = texture;
-			Depth = 0;
-			Layer = 0;
-			Level = 0;
 			DepthStencilClearValue = clearValue;
 			LoadOp = LoadOp.Clear;
 			StoreOp = depthStoreOp;
 			StencilLoadOp = LoadOp.Clear;
 			StencilStoreOp = stencilStoreOp;
+			SafeDiscard = safeDiscard;
 		}
 
 		public DepthStencilAttachmentInfo(
-			Texture texture,
+			TextureSlice textureSlice,
 			LoadOp loadOp = LoadOp.DontCare,
 			StoreOp storeOp = StoreOp.Store,
 			LoadOp stencilLoadOp = LoadOp.DontCare,
 			StoreOp stencilStoreOp = StoreOp.Store
 		) {
-			Texture = texture;
+			TextureSlice = textureSlice;
-			Depth = 0;
-			Layer = 0;
-			Level = 0;
 			DepthStencilClearValue = new DepthStencilValue();
 			LoadOp = loadOp;
 			StoreOp = storeOp;
@@ -283,38 +266,17 @@ namespace MoonWorks.Graphics
 			StencilStoreOp = stencilStoreOp;
 		}
 
-		public DepthStencilAttachmentInfo(
-			Texture texture,
-			DepthStencilValue depthStencilValue,
-			LoadOp loadOp,
-			StoreOp storeOp,
-			LoadOp stencilLoadOp,
-			StoreOp stencilStoreOp
-		) {
-			Texture = texture;
-			Depth = 0;
-			Layer = 0;
-			Level = 0;
-			DepthStencilClearValue = depthStencilValue;
-			LoadOp = loadOp;
-			StoreOp = storeOp;
-			StencilLoadOp = stencilLoadOp;
-			StencilStoreOp = stencilStoreOp;
-		}
-
 		public Refresh.DepthStencilAttachmentInfo ToRefresh()
 		{
 			return new Refresh.DepthStencilAttachmentInfo
 			{
-				texture = Texture.Handle,
+				textureSlice = TextureSlice.ToRefreshTextureSlice(),
-				depth = Depth,
-				layer = Layer,
-				level = Level,
 				depthStencilClearValue = DepthStencilClearValue.ToRefresh(),
 				loadOp = (Refresh.LoadOp) LoadOp,
 				storeOp = (Refresh.StoreOp) StoreOp,
 				stencilLoadOp = (Refresh.LoadOp) StencilLoadOp,
-				stencilStoreOp = (Refresh.StoreOp) StencilStoreOp
+				stencilStoreOp = (Refresh.StoreOp) StencilStoreOp,
+				safeDiscard = Conversions.BoolToByte(SafeDiscard)
 			};
 		}
 	}

src/Graphics/ResourceUploader.cs

@@ -22,7 +22,7 @@ namespace MoonWorks.Graphics
 		uint dataSize = 1024;
 
 		List<(GpuBuffer, BufferCopy, CopyOptions)> BufferUploads = new List<(GpuBuffer, BufferCopy, CopyOptions)>();
-		List<(TextureSlice, uint, CopyOptions)> TextureUploads = new List<(TextureSlice, uint, CopyOptions)>();
+		List<(TextureRegion, uint, CopyOptions)> TextureUploads = new List<(TextureRegion, uint, CopyOptions)>();
 
 		public ResourceUploader(GraphicsDevice device) : base(device)
 		{
@@ -142,12 +142,14 @@ namespace MoonWorks.Graphics
 					var byteSpan = new Span<byte>(byteBuffer, levelSize);
 					stream.ReadExactly(byteSpan);
 
-					var textureSlice = new TextureSlice
+					var textureRegion = new TextureRegion
+					{
+						TextureSlice = new TextureSlice
 						{
 							Texture = texture,
-						MipLevel = (uint) level,
+							Layer = (uint) face,
-						BaseLayer = (uint) face,
+							MipLevel = (uint) level
-						LayerCount = 1,
+						},
 						X = 0,
 						Y = 0,
 						Z = 0,
@@ -156,7 +158,7 @@ namespace MoonWorks.Graphics
 						Depth = 1
 					};
 
-					SetTextureData(textureSlice, byteSpan, CopyOptions.SafeOverwrite);
+					SetTextureData(textureRegion, byteSpan, CopyOptions.SafeOverwrite);
 
 					NativeMemory.Free(byteBuffer);
 				}
@@ -174,36 +176,36 @@ namespace MoonWorks.Graphics
 			return CreateTextureFromDDS(stream);
 		}
 
-		public void SetTextureDataFromCompressed(TextureSlice textureSlice, Span<byte> compressedImageData)
+		public void SetTextureDataFromCompressed(TextureRegion textureRegion, Span<byte> compressedImageData)
 		{
 			var pixelData = ImageUtils.GetPixelDataFromBytes(compressedImageData, out var _, out var _, out var sizeInBytes);
 			var pixelSpan = new Span<byte>((void*) pixelData, (int) sizeInBytes);
 
-			SetTextureData(textureSlice, pixelSpan, CopyOptions.SafeOverwrite);
+			SetTextureData(textureRegion, pixelSpan, CopyOptions.SafeOverwrite);
 
 			ImageUtils.FreePixelData(pixelData);
 		}
 
-		public void SetTextureDataFromCompressed(TextureSlice textureSlice, Stream compressedImageStream)
+		public void SetTextureDataFromCompressed(TextureRegion textureRegion, Stream compressedImageStream)
 		{
 			var length = compressedImageStream.Length;
 			var buffer = NativeMemory.Alloc((nuint) length);
 			var span = new Span<byte>(buffer, (int) length);
 			compressedImageStream.ReadExactly(span);
-			SetTextureDataFromCompressed(textureSlice, span);
+			SetTextureDataFromCompressed(textureRegion, span);
 			NativeMemory.Free(buffer);
 		}
 
-		public void SetTextureDataFromCompressed(TextureSlice textureSlice, string compressedImageFilePath)
+		public void SetTextureDataFromCompressed(TextureRegion textureRegion, string compressedImageFilePath)
 		{
 			var fileStream = new FileStream(compressedImageFilePath, FileMode.Open, FileAccess.Read);
-			SetTextureDataFromCompressed(textureSlice, fileStream);
+			SetTextureDataFromCompressed(textureRegion, fileStream);
 		}
 
 		/// <summary>
 		/// Prepares upload of pixel data into a TextureSlice.
 		/// </summary>
-		public void SetTextureData<T>(TextureSlice textureSlice, Span<T> data, CopyOptions option) where T : unmanaged
+		public void SetTextureData<T>(TextureRegion textureRegion, Span<T> data, CopyOptions option) where T : unmanaged
 		{
 			var elementSize = Marshal.SizeOf<T>();
 			var dataLengthInBytes = (uint) (elementSize * data.Length);
@@ -211,10 +213,10 @@ namespace MoonWorks.Graphics
 			uint resourceOffset;
 			fixed (T* dataPtr = data)
 			{
-				resourceOffset = CopyDataAligned(dataPtr, dataLengthInBytes, Texture.TexelSize(textureSlice.Texture.Format));
+				resourceOffset = CopyDataAligned(dataPtr, dataLengthInBytes, Texture.TexelSize(textureRegion.TextureSlice.Texture.Format));
 			}
 
-			TextureUploads.Add((textureSlice, resourceOffset, option));
+			TextureUploads.Add((textureRegion, resourceOffset, option));
 		}
 
 		// Upload
@@ -274,11 +276,11 @@ namespace MoonWorks.Graphics
 				);
 			}
 
-			foreach (var (textureSlice, offset, option) in TextureUploads)
+			foreach (var (textureRegion, offset, option) in TextureUploads)
 			{
 				commandBuffer.UploadToTexture(
 					TransferBuffer,
-					textureSlice,
+					textureRegion,
 					new BufferImageCopy(
 						offset,
 						0,

src/Graphics/Resources/Texture.cs

@@ -14,6 +14,7 @@ namespace MoonWorks.Graphics
 		public uint Depth { get; }
 		public TextureFormat Format { get; internal set; }
 		public bool IsCube { get; }
+		public uint LayerCount { get; }
 		public uint LevelCount { get; }
 		public SampleCount SampleCount { get; }
 		public TextureUsageFlags UsageFlags { get; }
@@ -46,6 +47,7 @@ namespace MoonWorks.Graphics
 				Height = height,
 				Depth = 1,
 				IsCube = false,
+				LayerCount = 1,
 				LevelCount = levelCount,
 				SampleCount = sampleCount,
 				Format = format,
@@ -56,15 +58,43 @@ namespace MoonWorks.Graphics
 		}
 
 		/// <summary>
-		/// Creates a 3D texture.
+		/// Creates a 2D texture array.
 		/// </summary>
 		/// <param name="device">An initialized GraphicsDevice.</param>
 		/// <param name="width">The width of the texture.</param>
 		/// <param name="height">The height of the texture.</param>
-		/// <param name="depth">The depth of the texture.</param>
+		/// <param name="layerCount">The layer count of the texture.</param>
 		/// <param name="format">The format of the texture.</param>
 		/// <param name="usageFlags">Specifies how the texture will be used.</param>
 		/// <param name="levelCount">Specifies the number of mip levels.</param>
+		public static Texture CreateTexture2DArray(
+			GraphicsDevice device,
+			uint width,
+			uint height,
+			uint layerCount,
+			TextureFormat format,
+			TextureUsageFlags usageFlags,
+			uint levelCount = 1
+		) {
+			var textureCreateInfo = new TextureCreateInfo
+			{
+				Width = width,
+				Height = height,
+				Depth = 1,
+				IsCube = false,
+				LayerCount = layerCount,
+				LevelCount = levelCount,
+				Format = format,
+				UsageFlags = usageFlags
+			};
+
+			return new Texture(device, textureCreateInfo);
+		}
+
+		/// <summary>
+		/// Creates a 3D texture.
+		/// Note that the width, height and depth all form one slice and cannot be subdivided in a texture slice.
+		/// </summary>
 		public static Texture CreateTexture3D(
 			GraphicsDevice device,
 			uint width,
@@ -80,6 +110,7 @@ namespace MoonWorks.Graphics
 				Height = height,
 				Depth = depth,
 				IsCube = false,
+				LayerCount = 1,
 				LevelCount = levelCount,
 				Format = format,
 				UsageFlags = usageFlags
@@ -109,6 +140,7 @@ namespace MoonWorks.Graphics
 				Height = size,
 				Depth = 1,
 				IsCube = true,
+				LayerCount = 6,
 				LevelCount = levelCount,
 				Format = format,
 				UsageFlags = usageFlags
@@ -137,14 +169,13 @@ namespace MoonWorks.Graphics
 			Height = textureCreateInfo.Height;
 			Depth = textureCreateInfo.Depth;
 			IsCube = textureCreateInfo.IsCube;
+			LayerCount = textureCreateInfo.LayerCount;
 			LevelCount = textureCreateInfo.LevelCount;
 			SampleCount = textureCreateInfo.SampleCount;
 			UsageFlags = textureCreateInfo.UsageFlags;
 			Size = Width * Height * BytesPerPixel(Format) / BlockSizeSquared(Format);
 		}
 
-		public static implicit operator TextureSlice(Texture t) => new TextureSlice(t);
-
 		// Used by AcquireSwapchainTexture.
 		// Should not be tracked, because swapchain textures are managed by Vulkan.
 		internal Texture(
@@ -270,5 +301,8 @@ namespace MoonWorks.Graphics
 					return 0;
 			}
 		}
+
+		public static implicit operator TextureSlice(Texture t) => new TextureSlice(t);
+		public static implicit operator TextureRegion(Texture t) => new TextureRegion(t);
 	}
 }

src/Graphics/State/TextureCreateInfo.cs

@@ -11,6 +11,7 @@ namespace MoonWorks.Graphics
 		public uint Height;
 		public uint Depth;
 		public bool IsCube;
+		public uint LayerCount;
 		public uint LevelCount;
 		public SampleCount SampleCount;
 		public TextureFormat Format;
@@ -24,6 +25,7 @@ namespace MoonWorks.Graphics
 				height = Height,
 				depth = Depth,
 				isCube = Conversions.BoolToByte(IsCube),
+				layerCount = LayerCount,
 				levelCount = LevelCount,
 				sampleCount = (Refresh.SampleCount) SampleCount,
 				format = (Refresh.TextureFormat) Format,

src/Graphics/TextureRegion.cs

@@ -0,0 +1,46 @@
+using RefreshCS;
+
+namespace MoonWorks.Graphics
+{
+	/// <summary>
+	/// A texture region specifies a subregion of a texture.
+	/// These are used by copy commands.
+	/// </summary>
+	public struct TextureRegion
+	{
+		public TextureSlice TextureSlice;
+		public uint X;
+		public uint Y;
+		public uint Z;
+		public uint Width;
+		public uint Height;
+		public uint Depth;
+
+		public uint Size => (Width * Height * Depth * Texture.BytesPerPixel(TextureSlice.Texture.Format) / Texture.BlockSizeSquared(TextureSlice.Texture.Format)) >> (int) TextureSlice.MipLevel;
+
+		public TextureRegion(Texture texture)
+		{
+			TextureSlice = new TextureSlice(texture);
+			X = 0;
+			Y = 0;
+			Z = 0;
+			Width = texture.Width;
+			Height = texture.Height;
+			Depth = texture.Depth;
+		}
+
+		public Refresh.TextureRegion ToRefreshTextureRegion()
+		{
+			return new Refresh.TextureRegion
+			{
+				textureSlice = TextureSlice.ToRefreshTextureSlice(),
+				x = X,
+				y = Y,
+				z = Z,
+				w = Width,
+				h = Height,
+				d = Depth
+			};
+		}
+	}
+}

src/Graphics/TextureSlice.cs

@@ -3,55 +3,31 @@
 namespace MoonWorks.Graphics
 {
 	/// <summary>
-	/// A texture slice specifies a subregion of a texture.
+	/// A texture slice specifies a subresource of a texture.
-	/// Many operations can use texture slices in place of textures for the sake of convenience.
 	/// </summary>
 	public struct TextureSlice
 	{
 		public Texture Texture;
 		public uint MipLevel;
-		public uint BaseLayer;
+		public uint Layer;
-		public uint LayerCount;
-		public uint X;
-		public uint Y;
-		public uint Z;
-		public uint Width;
-		public uint Height;
-		public uint Depth;
 
-		public uint Size => (Width * Height * Depth * LayerCount * Texture.BytesPerPixel(Texture.Format) / Texture.BlockSizeSquared(Texture.Format)) >> (int) MipLevel;
+		public uint Size => (Texture.Width * Texture.Height * Texture.Depth * Texture.BytesPerPixel(Texture.Format) / Texture.BlockSizeSquared(Texture.Format)) >> (int) MipLevel;
 
 		public TextureSlice(Texture texture)
 		{
 			Texture = texture;
 			MipLevel = 0;
-			BaseLayer = 0;
+			Layer = 0;
-			LayerCount = (uint) (texture.IsCube ? 6 : 1);
-			X = 0;
-			Y = 0;
-			Z = 0;
-			Width = texture.Width;
-			Height = texture.Height;
-			Depth = texture.Depth;
 		}
 
 		public Refresh.TextureSlice ToRefreshTextureSlice()
 		{
-			Refresh.TextureSlice textureSlice = new Refresh.TextureSlice
+			return new Refresh.TextureSlice
 			{
 				texture = Texture.Handle,
 				mipLevel = MipLevel,
-				baseLayer = BaseLayer,
+				layer = Layer
-				layerCount = LayerCount,
-				x = X,
-				y = Y,
-				z = Z,
-				w = Width,
-				h = Height,
-				d = Depth
 			};
-
-			return textureSlice;
 		}
 	}
 }

src/Video/VideoPlayer.cs

@@ -287,7 +287,7 @@ namespace MoonWorks.Video
 				commandBuffer.EndCopyPass();
 
 				commandBuffer.BeginRenderPass(
-					new ColorAttachmentInfo(RenderTexture, Color.Black)
+					new ColorAttachmentInfo(RenderTexture, Color.Black, true)
 				);
 
 				commandBuffer.BindGraphicsPipeline(Device.VideoPipeline);