/// <summary>
/// Read a KtxFile and decode it.
/// </summary>
public Image <Rgba32> Decode(KtxFile file)
{
if (IsSupportedRawFormat(file.Header.GlInternalFormat))
{
var decoder = GetRawDecoder(file.Header.GlInternalFormat);
var data = file.MipMaps[0].Faces[0].Data;
var pixelWidth = file.MipMaps[0].Width;
var pixelHeight = file.MipMaps[0].Height;
var image = new Image <Rgba32>((int)pixelWidth, (int)pixelHeight);
var output = decoder.Decode(data, (int)pixelWidth, (int)pixelHeight);
var pixels = image.GetPixelSpan();
output.CopyTo(pixels);
return(image);
}
else
{
var decoder = GetDecoder(file.Header.GlInternalFormat);
if (decoder == null)
{
throw new NotSupportedException($"This format is not supported: {file.Header.GlInternalFormat}");
}
var data = file.MipMaps[0].Faces[0].Data;
var pixelWidth = file.MipMaps[0].Width;
var pixelHeight = file.MipMaps[0].Height;
var blocks = decoder.Decode(data, (int)pixelWidth, (int)pixelHeight, out var blockWidth, out var blockHeight);
return(ImageToBlocks.ImageFromRawBlocks(blocks, blockWidth, blockHeight,
(int)pixelWidth, (int)pixelHeight));
}
}
public static float DecodeCheckPSNR(string filename, Image <Rgba32> original)
{
using FileStream fs = File.OpenRead(filename);
var ktx = KtxFile.Load(fs);
var decoder = new BcDecoder();
using var img = decoder.Decode(ktx);
var pixels = original.GetPixelSpan();
var pixels2 = img.GetPixelSpan();
return(ImageQuality.PeakSignalToNoiseRatio(pixels, pixels2, true));
}
/// <summary>
/// Encodes all mipmap levels into a ktx or a dds file and writes it to the output stream.
/// </summary>
public void Encode(Image <Rgba32> inputImage, Stream outputStream)
{
if (OutputOptions.fileFormat == OutputFileFormat.Ktx)
{
KtxFile output = EncodeToKtx(inputImage);
output.Write(outputStream);
}
else if (OutputOptions.fileFormat == OutputFileFormat.Dds)
{
DdsFile output = EncodeToDds(inputImage);
output.Write(outputStream);
}
}
/// <summary>
/// Encodes all cubemap faces and mipmap levels into Ktx file and writes it to the output stream.
/// Order is +X, -X, +Y, -Y, +Z, -Z
/// </summary>
public void EncodeCubeMap(Image <Rgba32> right, Image <Rgba32> left, Image <Rgba32> top, Image <Rgba32> down,
Image <Rgba32> back, Image <Rgba32> front, Stream outputStream)
{
if (OutputOptions.fileFormat == OutputFileFormat.Ktx)
{
KtxFile output = EncodeCubeMapToKtx(right, left, top, down, back, front);
output.Write(outputStream);
}
else if (OutputOptions.fileFormat == OutputFileFormat.Dds)
{
DdsFile output = EncodeCubeMapToDds(right, left, top, down, back, front);
output.Write(outputStream);
}
}
public ImageInfo Load(Stream input)
{
// Load Ktx file
var ktxFile = KtxFile.Load(input);
// Prepare main image data
var imageData = ktxFile.MipMaps[0].Faces[0].Data;
var imageFormat = (int)ktxFile.header.GlInternalFormat;
var size = new Size((int)ktxFile.header.PixelWidth, (int)ktxFile.header.PixelHeight);
// Prepare mip maps
return(new ImageInfo(imageData, imageFormat, size)
{
MipMapData = ktxFile.MipMaps.Skip(1).Select(x => x.Faces[0].Data).ToArray()
});
}
/// <summary>
/// Read a Ktx or a Dds file from a stream and decode it.
/// </summary>
public Image <Rgba32>[] DecodeAllMipMaps(Stream inputStream)
{
var position = inputStream.Position;
try {
if (inputStream is FileStream fs)
{
var extension = Path.GetExtension(fs.Name).ToLower();
if (extension == ".ktx")
{
KtxFile file = KtxFile.Load(inputStream);
return(DecodeAllMipMaps(file));
}
else if (extension == ".dds")
{
DdsFile file = DdsFile.Load(inputStream);
return(DecodeAllMipMaps(file));
}
}
bool isDDS = false;
using (var br = new BinaryReader(inputStream, Encoding.UTF8, true)) {
var magic = br.ReadUInt32();
if (magic == 0x20534444U)
{
isDDS = true;
}
}
inputStream.Seek(position, SeekOrigin.Begin);
if (isDDS)
{
DdsFile dds = DdsFile.Load(inputStream);
return(DecodeAllMipMaps(dds));
}
else
{
KtxFile ktx = KtxFile.Load(inputStream);
return(DecodeAllMipMaps(ktx));
}
}
catch (Exception) {
inputStream.Seek(position, SeekOrigin.Begin);
throw;
}
}
public void Save(Stream output, ImageInfo imageInfo)
{
// Create Ktx file
var ktxHeader = CreateKtxHeader(imageInfo.ImageFormat, imageInfo.ImageSize);
var ktxFile = new KtxFile(ktxHeader);
// Add main image to Ktx
ktxFile.MipMaps.Add(CreateMipMap(imageInfo.ImageData, imageInfo.ImageSize));
// Add mips to Ktx
for (var i = 1; i <= imageInfo.MipMapCount; i++)
{
ktxFile.MipMaps.Add(CreateMipMap(imageInfo.MipMapData[i - 1], new Size(imageInfo.ImageSize.Width >> i, imageInfo.ImageSize.Height >> i)));
}
ktxFile.Write(output);
}
public void Bc4Decode()
{
using FileStream fs = File.OpenRead(@"../../../testImages/test_decompress_bc4_unorm.ktx");
KtxFile file = KtxFile.Load(fs);
Assert.True(file.Header.VerifyHeader());
Assert.Equal((uint)1, file.Header.NumberOfFaces);
BcDecoder decoder = new BcDecoder();
using var image = decoder.Decode(file);
Assert.Equal((uint)image.Width, file.Header.PixelWidth);
Assert.Equal((uint)image.Height, file.Header.PixelHeight);
using FileStream outFs = File.OpenWrite("decoding_test_bc4.png");
image.SaveAsPng(outFs);
}
/// <summary>
/// Encodes all mipmap levels into a Ktx file.
/// </summary>
public KtxFile EncodeToKtx(Image <Rgba32> inputImage)
{
KtxFile output;
IBcBlockEncoder compressedEncoder = null;
IRawEncoder uncompressedEncoder = null;
if (OutputOptions.format.IsCompressedFormat())
{
compressedEncoder = GetEncoder(OutputOptions.format);
if (compressedEncoder == null)
{
throw new NotSupportedException($"This format is not supported: {OutputOptions.format}");
}
output = new KtxFile(
KtxHeader.InitializeCompressed(inputImage.Width, inputImage.Height,
compressedEncoder.GetInternalFormat(),
compressedEncoder.GetBaseInternalFormat()));
}
else
{
uncompressedEncoder = GetRawEncoder(OutputOptions.format);
output = new KtxFile(
KtxHeader.InitializeUncompressed(inputImage.Width, inputImage.Height,
uncompressedEncoder.GetGlType(),
uncompressedEncoder.GetGlFormat(),
uncompressedEncoder.GetGlTypeSize(),
uncompressedEncoder.GetInternalFormat(),
uncompressedEncoder.GetBaseInternalFormat()));
}
uint numMipMaps = (uint)OutputOptions.maxMipMapLevel;
if (!OutputOptions.generateMipMaps)
{
numMipMaps = 1;
}
var mipChain = MipMapper.GenerateMipChain(inputImage, ref numMipMaps);
for (int i = 0; i < numMipMaps; i++)
{
byte[] encoded = null;
if (OutputOptions.format.IsCompressedFormat())
{
var blocks = ImageToBlocks.ImageTo4X4(mipChain[i].Frames[0], out int blocksWidth, out int blocksHeight);
encoded = compressedEncoder.Encode(blocks, blocksWidth, blocksHeight, OutputOptions.quality,
!Debugger.IsAttached && Options.multiThreaded);
}
else
{
encoded = uncompressedEncoder.Encode(mipChain[i].GetPixelSpan());
}
output.MipMaps.Add(new KtxMipmap((uint)encoded.Length,
(uint)inputImage.Width,
(uint)inputImage.Height, 1));
output.MipMaps[i].Faces[0] = new KtxMipFace(encoded,
(uint)inputImage.Width,
(uint)inputImage.Height);
}
foreach (var image in mipChain)
{
image.Dispose();
}
output.Header.NumberOfFaces = 1;
output.Header.NumberOfMipmapLevels = numMipMaps;
return(output);
}
protected override void CreateResources(ResourceFactory factory)
{
_vertexLayout = new VertexLayoutDescription(
new VertexElementDescription("Position", VertexElementSemantic.Position, VertexElementFormat.Float3),
new VertexElementDescription("UV", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float2),
new VertexElementDescription("Color", VertexElementSemantic.Color, VertexElementFormat.Float3),
new VertexElementDescription("Normal", VertexElementSemantic.Normal, VertexElementFormat.Float3));
using (Stream planeModelStream = OpenEmbeddedAssetStream("plane2.dae"))
{
_planeModel = new Model(
GraphicsDevice,
factory,
planeModelStream,
"dae",
_vertexLayout,
new Model.ModelCreateInfo(new Vector3(0.5f, 0.5f, 0.5f), Vector2.One, Vector3.Zero));
}
using (Stream dragonModelStream = OpenEmbeddedAssetStream("chinesedragon.dae"))
{
_dragonModel = new Model(
GraphicsDevice,
factory,
dragonModelStream,
"dae",
_vertexLayout,
new Model.ModelCreateInfo(new Vector3(0.3f, -0.3f, 0.3f), Vector2.One, Vector3.Zero));
}
using (Stream colorMapStream = OpenEmbeddedAssetStream("darkmetal_bc3_unorm.ktx"))
{
_colorMap = KtxFile.LoadTexture(
GraphicsDevice,
factory,
colorMapStream,
PixelFormat.BC3_UNorm);
}
_colorView = factory.CreateTextureView(_colorMap);
_offscreenColor = factory.CreateTexture(TextureDescription.Texture2D(
OffscreenWidth, OffscreenHeight, 1, 1,
PixelFormat.R8_G8_B8_A8_UNorm, TextureUsage.RenderTarget | TextureUsage.Sampled));
_offscreenView = factory.CreateTextureView(_offscreenColor);
Texture offscreenDepth = factory.CreateTexture(TextureDescription.Texture2D(
OffscreenWidth, OffscreenHeight, 1, 1, PixelFormat.R16_UNorm, TextureUsage.DepthStencil));
_offscreenFB = factory.CreateFramebuffer(new FramebufferDescription(offscreenDepth, _offscreenColor));
ShaderSetDescription phongShaders = new ShaderSetDescription(
new[] { _vertexLayout },
new[]
{
LoadShader(factory, "Phong", ShaderStages.Vertex, "VS"),
LoadShader(factory, "Phong", ShaderStages.Fragment, "FS")
});
ResourceLayout phongLayout = factory.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription("UBO", ResourceKind.UniformBuffer, ShaderStages.Vertex)));
GraphicsPipelineDescription pd = new GraphicsPipelineDescription(
BlendStateDescription.SingleOverrideBlend,
DepthStencilStateDescription.DepthOnlyLessEqual,
new RasterizerStateDescription(FaceCullMode.Front, PolygonFillMode.Solid, FrontFace.Clockwise, true, false),
PrimitiveTopology.TriangleList,
phongShaders,
phongLayout,
_offscreenFB.OutputDescription);
_offscreenPipeline = factory.CreateGraphicsPipeline(pd);
pd.Outputs = GraphicsDevice.SwapchainFramebuffer.OutputDescription;
pd.RasterizerState = RasterizerStateDescription.Default;
_dragonPipeline = factory.CreateGraphicsPipeline(pd);
ResourceLayout mirrorLayout = factory.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription("UBO", ResourceKind.UniformBuffer, ShaderStages.Vertex),
new ResourceLayoutElementDescription("ReflectionMap", ResourceKind.TextureReadOnly, ShaderStages.Fragment),
new ResourceLayoutElementDescription("ReflectionMapSampler", ResourceKind.Sampler, ShaderStages.Fragment),
new ResourceLayoutElementDescription("ColorMap", ResourceKind.TextureReadOnly, ShaderStages.Fragment),
new ResourceLayoutElementDescription("ColorMapSampler", ResourceKind.Sampler, ShaderStages.Fragment)));
ShaderSetDescription mirrorShaders = new ShaderSetDescription(
new[] { _vertexLayout },
new[]
{
LoadShader(factory, "Mirror", ShaderStages.Vertex, "VS"),
LoadShader(factory, "Mirror", ShaderStages.Fragment, "FS")
});
GraphicsPipelineDescription mirrorPD = new GraphicsPipelineDescription(
BlendStateDescription.SingleOverrideBlend,
DepthStencilStateDescription.DepthOnlyLessEqual,
new RasterizerStateDescription(FaceCullMode.None, PolygonFillMode.Solid, FrontFace.Clockwise, true, false),
PrimitiveTopology.TriangleList,
mirrorShaders,
mirrorLayout,
GraphicsDevice.SwapchainFramebuffer.OutputDescription);
_mirrorPipeline = factory.CreateGraphicsPipeline(ref mirrorPD);
_uniformBuffers_vsShared = factory.CreateBuffer(new BufferDescription(208, BufferUsage.UniformBuffer | BufferUsage.Dynamic));
_uniformBuffers_vsMirror = factory.CreateBuffer(new BufferDescription(208, BufferUsage.UniformBuffer | BufferUsage.Dynamic));
_uniformBuffers_vsOffScreen = factory.CreateBuffer(new BufferDescription(208, BufferUsage.UniformBuffer | BufferUsage.Dynamic));
_offscreenResourceSet = factory.CreateResourceSet(new ResourceSetDescription(phongLayout, _uniformBuffers_vsOffScreen));
_dragonResourceSet = factory.CreateResourceSet(new ResourceSetDescription(phongLayout, _uniformBuffers_vsShared));
_mirrorResourceSet = factory.CreateResourceSet(new ResourceSetDescription(mirrorLayout,
_uniformBuffers_vsMirror,
_offscreenView,
GraphicsDevice.LinearSampler,
_colorView,
GraphicsDevice.Aniso4xSampler));
_cl = factory.CreateCommandList();
}
public void LoadFromStream(Stream file)
{
tex2D = KtxFile.Load(file, false);
}
private void TransferDataKtx(KtxFile tex2D)
{
using CommandBuffer copyCmd = device.GetCommandPool().Rent();
VkMemoryAllocateInfo memAllocInfo = Initializers.memoryAllocateInfo();
VkMemoryRequirements memReqs;
copyCmd.Begin();
// Create a host-visible staging buffer that contains the raw image data
VkBuffer stagingBuffer;
VkDeviceMemory stagingMemory;
VkBufferCreateInfo bufferCreateInfo = Initializers.bufferCreateInfo();
bufferCreateInfo.size = tex2D.GetTotalSize();
// This buffer is used as a transfer source for the buffer copy
bufferCreateInfo.usage = VkBufferUsageFlags.TransferSrc;
bufferCreateInfo.sharingMode = VkSharingMode.Exclusive;
Util.CheckResult(vkCreateBuffer(device.device, &bufferCreateInfo, null, &stagingBuffer));
// Get memory requirements for the staging buffer (alignment, memory type bits)
vkGetBufferMemoryRequirements(device.device, stagingBuffer, &memReqs);
memAllocInfo.allocationSize = memReqs.size;
// Get memory type index for a host visible buffer
memAllocInfo.memoryTypeIndex = device.vulkanDevice.getMemoryType(memReqs.memoryTypeBits, VkMemoryPropertyFlags.HostVisible | VkMemoryPropertyFlags.HostCoherent);
Util.CheckResult(vkAllocateMemory(device.device, &memAllocInfo, null, &stagingMemory));
Util.CheckResult(vkBindBufferMemory(device.device, stagingBuffer, stagingMemory, 0));
// Copy texture data into staging buffer
byte *data;
Util.CheckResult(vkMapMemory(device.device, stagingMemory, 0, memReqs.size, 0, (void **)&data));
byte[] pixelData = tex2D.GetAllTextureData();
fixed(byte *pixelDataPtr = &pixelData[0])
{
Unsafe.CopyBlock(data, pixelDataPtr, (uint)pixelData.Length);
}
vkUnmapMemory(device.device, stagingMemory);
// Setup buffer copy regions for each mip level
using NativeList <VkBufferImageCopy> bufferCopyRegions = new NativeList <VkBufferImageCopy>();
uint offset = 0;
for (uint i = 0; i < mipLevels; i++)
{
VkBufferImageCopy bufferCopyRegion = new VkBufferImageCopy();
bufferCopyRegion.imageSubresource.aspectMask = VkImageAspectFlags.Color;
bufferCopyRegion.imageSubresource.mipLevel = i;
bufferCopyRegion.imageSubresource.baseArrayLayer = 0;
bufferCopyRegion.imageSubresource.layerCount = 1;
bufferCopyRegion.imageExtent.width = tex2D.Faces[0].Mipmaps[i].Width;
bufferCopyRegion.imageExtent.height = tex2D.Faces[0].Mipmaps[i].Height;
bufferCopyRegion.imageExtent.depth = 1;
bufferCopyRegion.bufferOffset = offset;
bufferCopyRegions.Add(bufferCopyRegion);
offset += tex2D.Faces[0].Mipmaps[i].SizeInBytes;
}
VkImageSubresourceRange subresourceRange = new VkImageSubresourceRange();
subresourceRange.aspectMask = VkImageAspectFlags.Color;
subresourceRange.baseMipLevel = 0;
subresourceRange.levelCount = mipLevels;
subresourceRange.layerCount = 1;
// Image barrier for optimal image (target)
// Optimal image will be used as destination for the copy
Tools.setImageLayout(
copyCmd.vkCmd,
image,
VkImageAspectFlags.Color,
VkImageLayout.Undefined,
VkImageLayout.TransferDstOptimal,
subresourceRange);
// Copy mip levels from staging buffer
vkCmdCopyBufferToImage(
copyCmd.vkCmd,
stagingBuffer,
image,
VkImageLayout.TransferDstOptimal,
bufferCopyRegions.Count,
bufferCopyRegions.Data);
// Change texture image layout to shader read after all mip levels have been copied
Tools.setImageLayout(
copyCmd.vkCmd,
image,
VkImageAspectFlags.Color,
VkImageLayout.TransferDstOptimal,
imageLayout,
subresourceRange);
copyCmd.End();
device.FlushCommandBuffer(copyCmd);
//device.flushCommandBuffer(copyCmd, copyQueue);
// Clean up staging resources
vkFreeMemory(device.device, stagingMemory, null);
vkDestroyBuffer(device.device, stagingBuffer, null);
}
protected override void CreateResources(ResourceFactory factory)
{
_projectionBuffer = factory.CreateBuffer(new BufferDescription(64, BufferUsage.UniformBuffer | BufferUsage.Dynamic));
_viewBuffer = factory.CreateBuffer(new BufferDescription(64, BufferUsage.UniformBuffer | BufferUsage.Dynamic));
_worldBuffer = factory.CreateBuffer(new BufferDescription(64, BufferUsage.UniformBuffer | BufferUsage.Dynamic));
Matrix4x4 worldMatrix =
Matrix4x4.CreateTranslation(0, 15000, -5000)
* Matrix4x4.CreateRotationX(3 * (float)Math.PI / 2)
* Matrix4x4.CreateScale(0.05f);
GraphicsDevice.UpdateBuffer(_worldBuffer, 0, ref worldMatrix);
ResourceLayout layout = factory.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription("Projection", ResourceKind.UniformBuffer, ShaderStages.Vertex),
new ResourceLayoutElementDescription("View", ResourceKind.UniformBuffer, ShaderStages.Vertex),
new ResourceLayoutElementDescription("World", ResourceKind.UniformBuffer, ShaderStages.Vertex),
new ResourceLayoutElementDescription("Bones", ResourceKind.UniformBuffer, ShaderStages.Vertex),
new ResourceLayoutElementDescription("SurfaceTex", ResourceKind.TextureReadOnly, ShaderStages.Fragment),
new ResourceLayoutElementDescription("SurfaceSampler", ResourceKind.Sampler, ShaderStages.Fragment)));
Texture texture;
using (Stream ktxStream = OpenEmbeddedAssetStream("goblin_bc3_unorm.ktx"))
{
texture = KtxFile.LoadTexture(
GraphicsDevice,
factory,
ktxStream,
PixelFormat.BC3_UNorm);
}
_texView = ResourceFactory.CreateTextureView(texture);
VertexLayoutDescription vertexLayouts = new VertexLayoutDescription(
new[]
{
new VertexElementDescription("Position", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float3),
new VertexElementDescription("UV", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float2),
new VertexElementDescription("BoneWeights", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float4),
new VertexElementDescription("BoneIndices", VertexElementSemantic.TextureCoordinate, VertexElementFormat.UInt4),
});
GraphicsPipelineDescription gpd = new GraphicsPipelineDescription(
BlendStateDescription.SingleOverrideBlend,
DepthStencilStateDescription.DepthOnlyLessEqual,
new RasterizerStateDescription(FaceCullMode.Back, PolygonFillMode.Solid, FrontFace.CounterClockwise, true, false),
PrimitiveTopology.TriangleList,
new ShaderSetDescription(
new[] { vertexLayouts },
factory.CreateFromSpirv(
new ShaderDescription(ShaderStages.Vertex, Encoding.UTF8.GetBytes(VertexCode), "main"),
new ShaderDescription(ShaderStages.Fragment, Encoding.UTF8.GetBytes(FragmentCode), "main"))),
layout,
GraphicsDevice.SwapchainFramebuffer.OutputDescription);
_pipeline = factory.CreateGraphicsPipeline(ref gpd);
AssimpContext ac = new AssimpContext();
using (Stream modelStream = OpenEmbeddedAssetStream("goblin.dae"))
{
_scene = ac.ImportFileFromStream(modelStream, "dae");
}
_rootNodeInverseTransform = _scene.RootNode.Transform;
_rootNodeInverseTransform.Inverse();
_firstMesh = _scene.Meshes[0];
AnimatedVertex[] vertices = new AnimatedVertex[_firstMesh.VertexCount];
for (int i = 0; i < vertices.Length; i++)
{
vertices[i].Position = new Vector3(_firstMesh.Vertices[i].X, _firstMesh.Vertices[i].Y, _firstMesh.Vertices[i].Z);
vertices[i].UV = new Vector2(_firstMesh.TextureCoordinateChannels[0][i].X, _firstMesh.TextureCoordinateChannels[0][i].Y);
}
_animation = _scene.Animations[0];
List <int> indices = new List <int>();
foreach (Face face in _firstMesh.Faces)
{
if (face.IndexCount == 3)
{
indices.Add(face.Indices[0]);
indices.Add(face.Indices[1]);
indices.Add(face.Indices[2]);
}
}
for (uint boneID = 0; boneID < _firstMesh.BoneCount; boneID++)
{
Bone bone = _firstMesh.Bones[(int)boneID];
_boneIDsByName.Add(bone.Name, boneID);
foreach (VertexWeight weight in bone.VertexWeights)
{
vertices[weight.VertexID].AddBone(boneID, weight.Weight);
}
}
Array.Resize(ref _boneTransformations, _firstMesh.BoneCount);
_bonesBuffer = ResourceFactory.CreateBuffer(new BufferDescription(
64 * 64, BufferUsage.UniformBuffer | BufferUsage.Dynamic));
_rs = factory.CreateResourceSet(new ResourceSetDescription(layout,
_projectionBuffer, _viewBuffer, _worldBuffer, _bonesBuffer, _texView, GraphicsDevice.Aniso4xSampler));
_indexCount = (uint)indices.Count;
_vertexBuffer = ResourceFactory.CreateBuffer(new BufferDescription(
(uint)(vertices.Length * Unsafe.SizeOf <AnimatedVertex>()), BufferUsage.VertexBuffer));
GraphicsDevice.UpdateBuffer(_vertexBuffer, 0, vertices);
_indexBuffer = ResourceFactory.CreateBuffer(new BufferDescription(
_indexCount * 4, BufferUsage.IndexBuffer));
GraphicsDevice.UpdateBuffer(_indexBuffer, 0, indices.ToArray());
_cl = factory.CreateCommandList();
_camera.Position = new Vector3(110, -87, -532);
_camera.Yaw = 0.45f;
_camera.Pitch = -0.55f;
_camera.MoveSpeed = 1000f;
_camera.FarDistance = 100000;
}
protected override void CreateResources(ResourceFactory factory)
{
_instanceCount = 8000u;
_camera.Position = new Vector3(-36f, 20f, 100f);
_camera.Pitch = -0.3f;
_camera.Yaw = 0.1f;
_cameraProjViewBuffer = factory.CreateBuffer(
new BufferDescription((uint)(Unsafe.SizeOf <Matrix4x4>() * 2), BufferUsage.UniformBuffer | BufferUsage.Dynamic));
_lightInfoBuffer = factory.CreateBuffer(new BufferDescription(32, BufferUsage.UniformBuffer | BufferUsage.Dynamic));
_rotationInfoBuffer = factory.CreateBuffer(new BufferDescription(16, BufferUsage.UniformBuffer | BufferUsage.Dynamic));
_lightDir = Vector3.Normalize(new Vector3(0.3f, -0.75f, -0.3f));
VertexLayoutDescription sharedVertexLayout = new VertexLayoutDescription(
new VertexElementDescription("Position", VertexElementSemantic.Position, VertexElementFormat.Float3),
new VertexElementDescription("Normal", VertexElementSemantic.Normal, VertexElementFormat.Float3),
new VertexElementDescription("TexCoord", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float2));
bool etc2Supported = GraphicsDevice.GetPixelFormatSupport(
PixelFormat.ETC2_R8_G8_B8_UNorm,
TextureType.Texture2D,
TextureUsage.Sampled);
PixelFormat pixelFormat = etc2Supported ? PixelFormat.ETC2_R8_G8_B8_UNorm : PixelFormat.BC3_UNorm;
byte[] rockTextureData = LoadEmbeddedAsset <byte[]>(
etc2Supported
? "texturearray_rocks_etc2_unorm.binary"
: "texturearray_rocks_bc3_unorm.binary");
Texture rockTexture = KtxFile.LoadTexture(
GraphicsDevice,
ResourceFactory,
rockTextureData,
pixelFormat);
TextureView rockTextureView = ResourceFactory.CreateTextureView(rockTexture);
ResourceLayoutElementDescription[] resourceLayoutElementDescriptions =
{
new ResourceLayoutElementDescription("ProjView", ResourceKind.UniformBuffer, ShaderStages.Vertex),
new ResourceLayoutElementDescription("RotationInfo", ResourceKind.UniformBuffer, ShaderStages.Vertex),
new ResourceLayoutElementDescription("LightInfo", ResourceKind.UniformBuffer, ShaderStages.Fragment),
};
ResourceLayoutDescription resourceLayoutDescription = new ResourceLayoutDescription(resourceLayoutElementDescriptions);
ResourceLayout sharedLayout = factory.CreateResourceLayout(resourceLayoutDescription);
ResourceLayoutElementDescription[] textureLayoutDescriptions =
{
new ResourceLayoutElementDescription("Tex", ResourceKind.TextureReadOnly, ShaderStages.Fragment),
new ResourceLayoutElementDescription("Samp", ResourceKind.Sampler, ShaderStages.Fragment)
};
ResourceLayout textureLayout = factory.CreateResourceLayout(new ResourceLayoutDescription(textureLayoutDescriptions));
BindableResource[] bindableResources = new BindableResource[] { _cameraProjViewBuffer, _rotationInfoBuffer, _lightInfoBuffer };
ResourceSetDescription resourceSetDescription = new ResourceSetDescription(sharedLayout, bindableResources);
_sharedResourceSet = factory.CreateResourceSet(resourceSetDescription);
BindableResource[] instanceBindableResources = { rockTextureView, GraphicsDevice.LinearSampler };
_instanceTextureSet = factory.CreateResourceSet(new ResourceSetDescription(textureLayout, instanceBindableResources));
ProcessedModel rock = LoadEmbeddedAsset <ProcessedModel>("rock01.binary");
_rockModel = rock.MeshParts[0].CreateDeviceResources(GraphicsDevice, ResourceFactory);
VertexLayoutDescription vertexLayoutPerInstance = new VertexLayoutDescription(
new VertexElementDescription("InstancePosition", VertexElementSemantic.Position, VertexElementFormat.Float3),
new VertexElementDescription("InstanceRotation", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float3),
new VertexElementDescription("InstanceScale", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float3),
new VertexElementDescription("InstanceTexArrayIndex", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Int1));
vertexLayoutPerInstance.InstanceStepRate = 1;
_instanceVB = ResourceFactory.CreateBuffer(new BufferDescription(InstanceInfo.Size * _instanceCount, BufferUsage.VertexBuffer));
InstanceInfo[] infos = new InstanceInfo[_instanceCount];
Random r = new Random();
float orbitDistance = 50f;
for (uint i = 0; i < _instanceCount / 2; i++)
{
float angle = (float)(r.NextDouble() * Math.PI * 2);
infos[i] = new InstanceInfo(
new Vector3(
((float)Math.Cos(angle) * orbitDistance) + (float)(-10 + r.NextDouble() * 20),
(float)(-1.5 + r.NextDouble() * 3),
((float)Math.Sin(angle) * orbitDistance) + (float)(-10 + r.NextDouble() * 20)),
new Vector3(
(float)(r.NextDouble() * Math.PI * 2),
(float)(r.NextDouble() * Math.PI * 2),
(float)(r.NextDouble() * Math.PI * 2)),
new Vector3((float)(0.65 + r.NextDouble() * 0.35)),
r.Next(0, (int)rockTexture.ArrayLayers));
}
orbitDistance = 100f;
for (uint i = _instanceCount / 2; i < _instanceCount; i++)
{
float angle = (float)(r.NextDouble() * Math.PI * 2);
infos[i] = new InstanceInfo(
new Vector3(
((float)Math.Cos(angle) * orbitDistance) + (float)(-10 + r.NextDouble() * 20),
(float)(-1.5 + r.NextDouble() * 3),
((float)Math.Sin(angle) * orbitDistance) + (float)(-10 + r.NextDouble() * 20)),
new Vector3(
(float)(r.NextDouble() * Math.PI * 2),
(float)(r.NextDouble() * Math.PI * 2),
(float)(r.NextDouble() * Math.PI * 2)),
new Vector3((float)(0.65 + r.NextDouble() * 0.35)),
r.Next(0, (int)rockTexture.ArrayLayers));
}
GraphicsDevice.UpdateBuffer(_instanceVB, 0, infos);
Shader instanceVS = LoadShader(ResourceFactory, "Instance", ShaderStages.Vertex, "VS");
Shader instanceFS = LoadShader(ResourceFactory, "Instance", ShaderStages.Fragment, "FS");
GraphicsPipelineDescription pipelineDescription = new GraphicsPipelineDescription()
{
BlendState = BlendStateDescription.SingleOverrideBlend,
DepthStencilState = new DepthStencilStateDescription(
depthTestEnabled: true,
depthWriteEnabled: true,
comparisonKind: ComparisonKind.LessEqual),
RasterizerState = new RasterizerStateDescription(
cullMode: FaceCullMode.Back,
fillMode: PolygonFillMode.Solid,
frontFace: FrontFace.Clockwise,
depthClipEnabled: true,
scissorTestEnabled: false
),
PrimitiveTopology = PrimitiveTopology.TriangleList,
ResourceLayouts = new ResourceLayout[] { sharedLayout, textureLayout },
ShaderSet = new ShaderSetDescription(
// The ordering of layouts directly impacts shader layout schemes
vertexLayouts: new VertexLayoutDescription[] { sharedVertexLayout, vertexLayoutPerInstance },
shaders: new Shader[] { instanceVS, instanceFS }
),
Outputs = MainSwapchain.Framebuffer.OutputDescription
};
_instancePipeline = factory.CreateGraphicsPipeline(pipelineDescription);
// Create planet Pipeline
// Almost everything is the same as the rock Pipeline,
// except no instance vertex buffer is needed, and different shaders are used.
pipelineDescription.ShaderSet = new ShaderSetDescription(
new[] { sharedVertexLayout },
new[]
{
LoadShader(ResourceFactory, "Planet", ShaderStages.Vertex, "VS"),
LoadShader(ResourceFactory, "Planet", ShaderStages.Fragment, "FS"),
});
_planetPipeline = ResourceFactory.CreateGraphicsPipeline(pipelineDescription);
ProcessedModel planet = LoadEmbeddedAsset <ProcessedModel>("sphere.binary");
_planetModel = planet.MeshParts[0].CreateDeviceResources(GraphicsDevice, ResourceFactory);
byte[] planetTexData = LoadEmbeddedAsset <byte[]>(
etc2Supported
? "lavaplanet_etc2_unorm.binary"
: "lavaplanet_bc3_unorm.binary");
Texture planetTexture = KtxFile.LoadTexture(GraphicsDevice, ResourceFactory, planetTexData, pixelFormat);
TextureView planetTextureView = ResourceFactory.CreateTextureView(planetTexture);
_planetTextureSet = ResourceFactory.CreateResourceSet(new ResourceSetDescription(textureLayout, planetTextureView, GraphicsDevice.Aniso4xSampler));
// Starfield resources
ResourceLayout invCameraInfoLayout = ResourceFactory.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription("InvCameraInfo", ResourceKind.UniformBuffer, ShaderStages.Fragment)));
_viewInfoBuffer = ResourceFactory.CreateBuffer(new BufferDescription((uint)Unsafe.SizeOf <InvCameraInfo>(), BufferUsage.UniformBuffer | BufferUsage.Dynamic));
_viewInfoSet = ResourceFactory.CreateResourceSet(new ResourceSetDescription(invCameraInfoLayout, _viewInfoBuffer));
ShaderSetDescription starfieldShaders = new ShaderSetDescription(
Array.Empty <VertexLayoutDescription>(),
new[]
{
LoadShader(ResourceFactory, "Starfield", ShaderStages.Vertex, "VS"),
LoadShader(ResourceFactory, "Starfield", ShaderStages.Fragment, "FS"),
});
_starfieldPipeline = ResourceFactory.CreateGraphicsPipeline(new GraphicsPipelineDescription(
BlendStateDescription.SingleOverrideBlend,
DepthStencilStateDescription.Disabled,
RasterizerStateDescription.CullNone,
PrimitiveTopology.TriangleList,
starfieldShaders,
new[] { invCameraInfoLayout },
MainSwapchain.Framebuffer.OutputDescription));
_commandList = factory.CreateCommandList();
}
protected override void CreateResources(ResourceFactory factory)
{
_instanceCount = 1 << 14;
_camera.Position = new Vector3(-36f, 20f, 100f);
_camera.Pitch = -0.3f;
_camera.Yaw = 0.1f;
_cameraProjViewBuffer = factory.CreateBuffer(
new BufferDescription((uint)(Unsafe.SizeOf <Matrix4x4>() * 2), BufferUsage.UniformBuffer | BufferUsage.Dynamic));
_lightInfoBuffer = factory.CreateBuffer(new BufferDescription(32, BufferUsage.UniformBuffer | BufferUsage.Dynamic));
_rotationInfoBuffer = factory.CreateBuffer(new BufferDescription(16, BufferUsage.UniformBuffer | BufferUsage.Dynamic));
_lightDir = Vector3.Normalize(new Vector3(0.3f, -0.75f, -0.3f));
VertexLayoutDescription sharedVertexLayout = new VertexLayoutDescription(
new VertexElementDescription("Position", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float3),
new VertexElementDescription("Normal", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float3),
new VertexElementDescription("TexCoord", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float2));
bool etc2Supported = GraphicsDevice.GetPixelFormatSupport(
PixelFormat.ETC2_R8_G8_B8_UNorm,
TextureType.Texture2D,
TextureUsage.Sampled);
PixelFormat pixelFormat = etc2Supported ? PixelFormat.ETC2_R8_G8_B8_UNorm : PixelFormat.BC3_UNorm;
byte[] rockTextureData = LoadEmbeddedAsset <byte[]>(
etc2Supported
? "texturearray_rocks_etc2_unorm.binary"
: "texturearray_rocks_bc3_unorm.binary");
Texture rockTexture = KtxFile.LoadTexture(
GraphicsDevice,
ResourceFactory,
rockTextureData,
pixelFormat);
TextureView rockTextureView = ResourceFactory.CreateTextureView(rockTexture);
ResourceLayoutElementDescription[] resourceLayoutElementDescriptions =
{
new ResourceLayoutElementDescription("LightInfo", ResourceKind.UniformBuffer, ShaderStages.Fragment),
new ResourceLayoutElementDescription("ProjView", ResourceKind.UniformBuffer, ShaderStages.Vertex),
new ResourceLayoutElementDescription("RotationInfo", ResourceKind.UniformBuffer, ShaderStages.Vertex),
};
ResourceLayoutDescription resourceLayoutDescription = new ResourceLayoutDescription(resourceLayoutElementDescriptions);
ResourceLayout sharedLayout = factory.CreateResourceLayout(resourceLayoutDescription);
ResourceLayoutElementDescription[] textureLayoutDescriptions =
{
new ResourceLayoutElementDescription("Tex", ResourceKind.TextureReadOnly, ShaderStages.Fragment),
new ResourceLayoutElementDescription("Samp", ResourceKind.Sampler, ShaderStages.Fragment)
};
ResourceLayout textureLayout = factory.CreateResourceLayout(new ResourceLayoutDescription(textureLayoutDescriptions));
BindableResource[] bindableResources = new BindableResource[] { _lightInfoBuffer, _cameraProjViewBuffer, _rotationInfoBuffer };
ResourceSetDescription resourceSetDescription = new ResourceSetDescription(sharedLayout, bindableResources);
_sharedResourceSet = factory.CreateResourceSet(resourceSetDescription);
BindableResource[] instanceBindableResources = { rockTextureView, GraphicsDevice.LinearSampler };
_instanceTextureSet = factory.CreateResourceSet(new ResourceSetDescription(textureLayout, instanceBindableResources));
ProcessedModel rock = LoadEmbeddedAsset <ProcessedModel>("sphere.binary");
_rockModel = rock.MeshParts[0].CreateDeviceResources(GraphicsDevice, ResourceFactory);
VertexLayoutDescription vertexLayoutPerInstancePos = new VertexLayoutDescription(
new VertexElementDescription("InstancePosition", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float3));
VertexLayoutDescription vertexLayoutPerInstanceScale = new VertexLayoutDescription(
new VertexElementDescription("InstanceScale", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float3));
VertexLayoutDescription vertexLayoutPerInstanceColor = new VertexLayoutDescription(
new VertexElementDescription("InstanceColor", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float3));
vertexLayoutPerInstancePos.InstanceStepRate = 1;
vertexLayoutPerInstanceScale.InstanceStepRate = 1;
vertexLayoutPerInstanceColor.InstanceStepRate = 1;
_instanceVBPos = ResourceFactory.CreateBuffer(new BufferDescription(Vector3.Size * _instanceCount, BufferUsage.VertexBuffer));
_instanceVBScale = ResourceFactory.CreateBuffer(new BufferDescription(Vector3.Size * _instanceCount, BufferUsage.VertexBuffer));
_instanceVBColor = ResourceFactory.CreateBuffer(new BufferDescription(Vector3.Size * _instanceCount, BufferUsage.VertexBuffer));
Vector3[] instancePos = new Vector3[_instanceCount];
Vector3[] instanceScale = new Vector3[_instanceCount];
Vector3[] instanceColors = new Vector3[_instanceCount];
Random r = new Random();
for (uint i = 0; i < _instanceCount; i++)
{
instancePos[i] = new Vector3(
1000.0f * ((float)r.NextDouble() - 0.5f),
200.0f * ((float)r.NextDouble() - 0.5f),
1000.0f * ((float)r.NextDouble() - 0.5f));
instanceScale[i] = new Vector3((float)(r.NextDouble() * 0.3));
instanceColors[i] = new Vector3((float)r.NextDouble() * 0.5f + 0.5f,
(float)r.NextDouble() * 0.5f + 0.5f,
(float)r.NextDouble() * 0.5f + 0.5f);
}
GraphicsDevice.UpdateBuffer(_instanceVBPos, 0, instancePos);
GraphicsDevice.UpdateBuffer(_instanceVBScale, 0, instanceScale);
GraphicsDevice.UpdateBuffer(_instanceVBColor, 0, instanceColors);
GraphicsPipelineDescription pipelineDescriptionRocks = new GraphicsPipelineDescription()
{
BlendState = BlendStateDescription.SingleOverrideBlend,
DepthStencilState = new DepthStencilStateDescription(
depthTestEnabled: true,
depthWriteEnabled: true,
comparisonKind: ComparisonKind.LessEqual),
RasterizerState = new RasterizerStateDescription(
cullMode: FaceCullMode.Back,
fillMode: PolygonFillMode.Solid,
frontFace: FrontFace.Clockwise,
depthClipEnabled: true,
scissorTestEnabled: false
),
PrimitiveTopology = PrimitiveTopology.TriangleList,
ResourceLayouts = new ResourceLayout[] { sharedLayout, textureLayout },
ShaderSet = new ShaderSetDescription(
// The ordering of layouts directly impacts shader layout schemes
vertexLayouts: new VertexLayoutDescription[] { sharedVertexLayout, vertexLayoutPerInstancePos, vertexLayoutPerInstanceScale, vertexLayoutPerInstanceColor },
shaders: LoadShaders("Instance")
),
Outputs = MainSwapchain.Framebuffer.OutputDescription
};
_instancePipeline = factory.CreateGraphicsPipeline(pipelineDescriptionRocks);
// Starfield resources
ResourceLayout invCameraInfoLayout = ResourceFactory.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription("InvCameraInfo", ResourceKind.UniformBuffer, ShaderStages.Fragment)));
_viewInfoBuffer = ResourceFactory.CreateBuffer(new BufferDescription((uint)Unsafe.SizeOf <MatrixPair>(), BufferUsage.UniformBuffer | BufferUsage.Dynamic));
_commandList = factory.CreateCommandList();
}
public void Dispose()
{
tex2D = null;
}
/// <summary>
/// Encodes all cubemap faces and mipmap levels into a Ktx file.
/// Order is +X, -X, +Y, -Y, +Z, -Z. Back maps to positive Z and front to negative Z.
/// </summary>
public KtxFile EncodeCubeMapToKtx(Image <Rgba32> right, Image <Rgba32> left, Image <Rgba32> top, Image <Rgba32> down,
Image <Rgba32> back, Image <Rgba32> front)
{
KtxFile output;
IBcBlockEncoder compressedEncoder = null;
IRawEncoder uncompressedEncoder = null;
if (right.Width != left.Width || right.Width != top.Width || right.Width != down.Width ||
right.Width != back.Width || right.Width != front.Width ||
right.Height != left.Height || right.Height != top.Height || right.Height != down.Height ||
right.Height != back.Height || right.Height != front.Height)
{
throw new ArgumentException("All input images of a cubemap should be the same size.");
}
Image <Rgba32>[] faces = new[] { right, left, top, down, back, front };
if (OutputOptions.format.IsCompressedFormat())
{
compressedEncoder = GetEncoder(OutputOptions.format);
if (compressedEncoder == null)
{
throw new NotSupportedException($"This format is not supported: {OutputOptions.format}");
}
output = new KtxFile(
KtxHeader.InitializeCompressed(right.Width, right.Height,
compressedEncoder.GetInternalFormat(),
compressedEncoder.GetBaseInternalFormat()));
}
else
{
uncompressedEncoder = GetRawEncoder(OutputOptions.format);
output = new KtxFile(
KtxHeader.InitializeUncompressed(right.Width, right.Height,
uncompressedEncoder.GetGlType(),
uncompressedEncoder.GetGlFormat(),
uncompressedEncoder.GetGlTypeSize(),
uncompressedEncoder.GetInternalFormat(),
uncompressedEncoder.GetBaseInternalFormat()));
}
uint numMipMaps = (uint)OutputOptions.maxMipMapLevel;
if (!OutputOptions.generateMipMaps)
{
numMipMaps = 1;
}
uint mipLength = MipMapper.CalculateMipChainLength(right.Width, right.Height, numMipMaps);
for (uint i = 0; i < mipLength; i++)
{
output.MipMaps.Add(new KtxMipmap(0, 0, 0, (uint)faces.Length));
}
for (int f = 0; f < faces.Length; f++)
{
var mipChain = MipMapper.GenerateMipChain(faces[f], ref numMipMaps);
for (int i = 0; i < numMipMaps; i++)
{
byte[] encoded = null;
if (OutputOptions.format.IsCompressedFormat())
{
var blocks = ImageToBlocks.ImageTo4X4(mipChain[i].Frames[0], out int blocksWidth, out int blocksHeight);
encoded = compressedEncoder.Encode(blocks, blocksWidth, blocksHeight, OutputOptions.quality,
!Debugger.IsAttached && Options.multiThreaded);
}
else
{
encoded = uncompressedEncoder.Encode(mipChain[i].GetPixelSpan());
}
if (f == 0)
{
output.MipMaps[i] = new KtxMipmap((uint)encoded.Length,
(uint)mipChain[i].Width,
(uint)mipChain[i].Height, (uint)faces.Length);
}
output.MipMaps[i].Faces[f] = new KtxMipFace(encoded,
(uint)mipChain[i].Width,
(uint)mipChain[i].Height);
}
foreach (var image in mipChain)
{
image.Dispose();
}
}
output.Header.NumberOfFaces = (uint)faces.Length;
output.Header.NumberOfMipmapLevels = mipLength;
return(output);
}
/**
* Load a 2D texture including all mip levels
*
* @param filename File to load (supports .ktx and .dds)
* @param format Vulkan format of the image data stored in the file
* @param device Vulkan device to create the texture on
* @param copyQueue Queue used for the texture staging copy commands (must support transfer)
* @param (Optional) imageUsageFlags Usage flags for the texture's image (defaults to VK_IMAGE_USAGE_SAMPLED_BIT)
* @param (Optional) imageLayout Usage layout for the texture (defaults VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL)
* @param (Optional) forceLinear Force linear tiling (not advised, defaults to false)
*
*/
public void FromTextureAsset(
TextureAsset asset,
GraphicsDevice device,
VkImageUsageFlags imageUsageFlags = VkImageUsageFlags.Sampled,
VkImageLayout imageLayout = VkImageLayout.ShaderReadOnlyOptimal)
{
VkFormat format = VkFormat.Undefined;
KtxFile tex2D = asset.GetTexture();
format = GlFormatToVulkanFormat.vkGetFormatFromOpenGLInternalFormat(tex2D.Header.GlInternalFormat, tex2D.Header.GlFormat, tex2D.Header.GlType);
width = tex2D.Header.PixelWidth;
height = tex2D.Header.PixelHeight;
if (height == 0)
{
height = width;
}
mipLevels = tex2D.Header.NumberOfMipmapLevels;
this.imageLayout = imageLayout;
this.format = format;
this.device = device;
// Get device properites for the requested texture format
VkFormatProperties formatProperties;
vkGetPhysicalDeviceFormatProperties(device.physicalDevice, format, out formatProperties);
VkMemoryAllocateInfo memAllocInfo = Initializers.memoryAllocateInfo();
VkMemoryRequirements memReqs;
// Create optimal tiled target image
VkImageCreateInfo imageCreateInfo = Initializers.imageCreateInfo();
imageCreateInfo.imageType = VkImageType.Image2D;
imageCreateInfo.format = format;
imageCreateInfo.mipLevels = mipLevels;
imageCreateInfo.arrayLayers = 1;
imageCreateInfo.samples = VkSampleCountFlags.Count1;
imageCreateInfo.tiling = VkImageTiling.Optimal;
imageCreateInfo.sharingMode = VkSharingMode.Exclusive;
imageCreateInfo.initialLayout = VkImageLayout.Undefined;
imageCreateInfo.extent = new VkExtent3D {
width = width, height = height, depth = 1
};
imageCreateInfo.usage = imageUsageFlags;
// Ensure that the TRANSFER_DST bit is set for staging
if ((imageCreateInfo.usage & VkImageUsageFlags.TransferDst) == 0)
{
imageCreateInfo.usage |= VkImageUsageFlags.TransferDst;
}
Util.CheckResult(vkCreateImage(device.device, &imageCreateInfo, null, out image));
vkGetImageMemoryRequirements(device.device, image, &memReqs);
memAllocInfo.allocationSize = memReqs.size;
memory = device.memoryAllocator.Allocate(memReqs.size, memReqs.alignment, memReqs.memoryTypeBits, false);
Util.CheckResult(vkBindImageMemory(device.device, image, memory.vkDeviceMemory, memory.offset));
//memAllocInfo.memoryTypeIndex = device.vulkanDevice.getMemoryType(memReqs.memoryTypeBits, VkMemoryPropertyFlags.DeviceLocal);
//Util.CheckResult(vkAllocateMemory(device.device, &memAllocInfo, null, out deviceMemory));
//Util.CheckResult(vkBindImageMemory(device.device, image, deviceMemory, 0));
TransferDataKtx(tex2D);
CreateSampler();
CreateView();
// Update descriptor image info member that can be used for setting up descriptor sets
UpdateDescriptor();
}