internal ConstantBuffer(GraphicsDevice graphicsDevice, ResourceUsage usage, DataArray data) : base(graphicsDevice, new System.Diagnostics.StackTrace()) { if (data.IsNull) { throw new ArgumentNullException("data.Pointer"); } if (data.Size <= 0) { throw new ArgumentOutOfRangeException("data.Size", data.Size, "Size must be bigger than 0."); } if (data.Size > graphicsDevice.OpenGLCapabilities.MaxUniformBlockSize) { throw new PlatformNotSupportedException(string.Format("data.Size {0} is too big. Supported maximum is {1}", data.Size, graphicsDevice.OpenGLCapabilities.MaxUniformBlockSize)); } this.Usage = usage; UboId = GL.GenBuffer(); graphicsDevice.CheckGLError(); if (!data.IsNull) { this.SizeBytes = data.Size; if (graphicsDevice.OpenGLCapabilities.DirectStateAccess == DirectStateAccess.None) { graphicsDevice.BindManager.ConstantBuffer = this; GL.BufferData(BufferTarget.UniformBuffer, new IntPtr(SizeBytes), data.Pointer, EnumConverter.Convert(Usage)); } else if (graphicsDevice.OpenGLCapabilities.DirectStateAccess == DirectStateAccess.Extension) { OpenTK.Graphics.OpenGL.GL.Ext.NamedBufferData(UboId, new IntPtr(SizeBytes), data.Pointer, (OpenTK.Graphics.OpenGL.ExtDirectStateAccess)EnumConverter.Convert(Usage)); } } graphicsDevice.CheckGLError("Constant Buffer Constructor"); }
internal ConstantBuffer(GraphicsDevice graphicsDevice, int sizeBytes, ResourceUsage usage) : base(graphicsDevice, new System.Diagnostics.StackTrace()) { if (usage == ResourceUsage.Immutable) { throw new ArgumentException("data", "Immutable buffers must be initialized with data."); } if (sizeBytes <= 0) { throw new ArgumentOutOfRangeException("sizeBytes", sizeBytes, "Size must be bigger than 0."); } this.SizeBytes = sizeBytes; this.Usage = usage; UboId = GL.GenBuffer(); if (graphicsDevice.OpenGLCapabilities.DirectStateAccess == DirectStateAccess.None) { graphicsDevice.BindManager.ConstantBuffer = this; GL.BufferData(BufferTarget.UniformBuffer, new IntPtr(SizeBytes), IntPtr.Zero, EnumConverter.Convert(Usage)); } else if (graphicsDevice.OpenGLCapabilities.DirectStateAccess == DirectStateAccess.Extension) { OpenTK.Graphics.OpenGL.GL.Ext.NamedBufferData(UboId, new IntPtr(SizeBytes), IntPtr.Zero, (OpenTK.Graphics.OpenGL.ExtDirectStateAccess)EnumConverter.Convert(Usage)); } graphicsDevice.CheckGLError("Constant Buffer Constructor"); }
internal Texture2DArray(GraphicsDevice graphicsDevice, int width, int height, int arraySize, TextureFormat format, bool generateMipMaps, ResourceUsage usage = ResourceUsage.Normal, params DataRectangle[] data) : base(graphicsDevice, new System.Diagnostics.StackTrace(1)) { if (width <= 0) { throw new ArgumentOutOfRangeException("width", "Width must be positive."); } if (height <= 0) { throw new ArgumentOutOfRangeException("height", "Height must be positive."); } if (format == TextureFormat.Unknown) { throw new ArgumentException("Format must not be TextureFormat.Unknown.", "format"); } if (width > graphicsDevice.OpenGLCapabilities.MaxTextureSize) { throw new PlatformNotSupportedException("width exceeds the maximum texture size"); } if (height > graphicsDevice.OpenGLCapabilities.MaxTextureSize) { throw new PlatformNotSupportedException("height exceeds the maximum texture size"); } if ((width % 2 != 0 || height % 2 != 0) && graphicsDevice.OpenGLCapabilities.SupportsNonPowerOf2Textures) { throw new PlatformNotSupportedException("Driver doesn't support non power of two textures"); } if (width != height) { throw new PlatformNotSupportedException("Texture arrays must be quadratic"); } if (arraySize <= 0) { throw new ArgumentOutOfRangeException("Array Size must be at least one", "arraySize"); } if (usage == ResourceUsage.Immutable && (data == null || data.Length == 0)) { throw new ArgumentException("data", "Immutable textures must be initialized with data."); } if (data != null && data.Length != 0 && data.Length < arraySize) { throw new ArgumentOutOfRangeException("data", data.Length, string.Format("data Lenght is too small for specified arraySize, expected: {0}", arraySize)); } this.Width = width; this.Height = height; this.ArraySize = arraySize; this.MipLevels = generateMipMaps ? OpenGL4.GraphicsDevice.MipLevels(width, height) : 1; this.Format = format; this.Usage = usage; var internalFormat = EnumConverter.Convert(Format); this.TextureID = GL.GenTexture(); if (graphicsDevice.OpenGLCapabilities.DirectStateAccess == DirectStateAccess.None) { graphicsDevice.BindManager.SetTexture(this, 0); GL.TexParameter(TextureTarget.Texture2DArray, TextureParameterName.TextureMaxLevel, this.MipLevels - 1); if (!TextureFormatHelper.IsCompressed(Format)) { if (graphicsDevice.OpenGLCapabilities.SupportsTextureStorage && graphicsDevice.OpenGLCapabilities.OpenGLVersion > new Version(4, 2)) { GL.TexStorage3D(TextureTarget3d.Texture2DArray, MipLevels, EnumConverter.ConvertSizedInternalFormat(Format), Width, Height, ArraySize); } else { GL.TexImage3D(TextureTarget.Texture2DArray, 0, internalFormat.Item1, width, height, arraySize, 0, internalFormat.Item2, internalFormat.Item3, IntPtr.Zero); } } } else if (graphicsDevice.OpenGLCapabilities.DirectStateAccess == DirectStateAccess.Extension) { Ext.TextureParameter(TextureID, OpenTK.Graphics.OpenGL.TextureTarget.Texture2D, OpenTK.Graphics.OpenGL.TextureParameterName.TextureMaxLevel, this.MipLevels - 1); if (!TextureFormatHelper.IsCompressed(Format)) { if (graphicsDevice.OpenGLCapabilities.SupportsTextureStorage && graphicsDevice.OpenGLCapabilities.OpenGLVersion > new Version(4, 2)) { Ext.TextureStorage3D(TextureID, (OpenTK.Graphics.OpenGL.ExtDirectStateAccess)TextureTarget3d.Texture2DArray, MipLevels, (OpenTK.Graphics.OpenGL.ExtDirectStateAccess)EnumConverter.ConvertSizedInternalFormat(Format), Width, Height, ArraySize); } else { Ext.TextureImage3D(TextureID, (OpenTK.Graphics.OpenGL.TextureTarget)TextureTarget.Texture3D, 0, (int)internalFormat.Item1, width, height, arraySize, 0, (OpenTK.Graphics.OpenGL.PixelFormat)internalFormat.Item2, (OpenTK.Graphics.OpenGL.PixelType)internalFormat.Item3, IntPtr.Zero); } } } else if (graphicsDevice.OpenGLCapabilities.DirectStateAccess == DirectStateAccess.Core) { } if (data != null) { for (int i = 0; i < data.Length; i++) { SetData(data[i], i, 0); } } graphicsDevice.CheckGLError(); }
internal void Apply(IDepthStencilState compareTo, int stencilReference) { if (compareTo != null || this.stencilReference != stencilReference) { //Depth if (compareTo.Info.IsDepthEnabled != Info.IsDepthEnabled) { if (Info.IsDepthEnabled) GL.Enable(EnableCap.DepthTest); else GL.Disable(EnableCap.DepthTest); } if (compareTo.Info.DepthWriteMask != Info.DepthWriteMask) GL.DepthMask(Info.DepthWriteMask == DepthWriteMask.All); if (compareTo.Info.DepthComparsion != Info.DepthComparsion) GL.DepthFunc(EnumConverter.Convert(Info.DepthComparsion)); //Stencil if (compareTo.Info.IsStencilEnabled != Info.IsStencilEnabled) { if (Info.IsStencilEnabled) GL.Enable(EnableCap.StencilTest); else GL.Disable(EnableCap.StencilTest); } if (compareTo.Info.StencilWriteMask != Info.StencilWriteMask) GL.StencilMask(Info.StencilWriteMask); if (compareTo.Info.FrontFace.Comparsion != Info.FrontFace.Comparsion) { GL.StencilFuncSeparate(StencilFace.Front, (StencilFunction)EnumConverter.Convert(Info.FrontFace.Comparsion), stencilReference, Info.StencilWriteMask); } if (compareTo.Info.FrontFace.DepthFailOperation != Info.FrontFace.DepthFailOperation || compareTo.Info.FrontFace.FailOperation != Info.FrontFace.FailOperation || compareTo.Info.FrontFace.PassOperation != Info.FrontFace.PassOperation) { GL.StencilOpSeparate(StencilFace.Front, EnumConverter.Convert(Info.FrontFace.FailOperation), EnumConverter.Convert(Info.FrontFace.DepthFailOperation), EnumConverter.Convert(Info.FrontFace.PassOperation)); } if (compareTo.Info.BackFace.Comparsion != Info.BackFace.Comparsion) { GL.StencilFuncSeparate(StencilFace.Back, (StencilFunction)EnumConverter.Convert(Info.BackFace.Comparsion), stencilReference, Info.StencilWriteMask); } if (compareTo.Info.BackFace.DepthFailOperation != Info.BackFace.DepthFailOperation || compareTo.Info.BackFace.FailOperation != Info.BackFace.FailOperation || compareTo.Info.BackFace.PassOperation != Info.BackFace.PassOperation) { GL.StencilOpSeparate(StencilFace.Back, EnumConverter.Convert(Info.BackFace.FailOperation), EnumConverter.Convert(Info.BackFace.DepthFailOperation), EnumConverter.Convert(Info.BackFace.PassOperation)); } } else { //Depth if (Info.IsDepthEnabled) GL.Enable(EnableCap.DepthTest); else GL.Disable(EnableCap.DepthTest); GL.DepthMask(Info.DepthWriteMask == DepthWriteMask.All); GL.DepthFunc(EnumConverter.Convert(Info.DepthComparsion)); //Stencil if (Info.IsStencilEnabled) GL.Enable(EnableCap.StencilTest); else GL.Disable(EnableCap.StencilTest); GL.StencilMask(Info.StencilWriteMask); GL.StencilFuncSeparate(StencilFace.Front, (StencilFunction)EnumConverter.Convert(Info.FrontFace.Comparsion), stencilReference, Info.StencilWriteMask); GL.StencilOpSeparate(StencilFace.Front, EnumConverter.Convert(Info.FrontFace.FailOperation), EnumConverter.Convert(Info.FrontFace.DepthFailOperation), EnumConverter.Convert(Info.FrontFace.PassOperation)); GL.StencilFuncSeparate(StencilFace.Back, (StencilFunction)EnumConverter.Convert(Info.BackFace.Comparsion), stencilReference, Info.StencilWriteMask); GL.StencilOpSeparate(StencilFace.Back, EnumConverter.Convert(Info.BackFace.FailOperation), EnumConverter.Convert(Info.BackFace.DepthFailOperation), EnumConverter.Convert(Info.BackFace.PassOperation)); } this.stencilReference = stencilReference; }
internal void SetData(DataRectangle data, int arrayIndex, int mipLevel) { var format = EnumConverter.Convert(Format); if (graphicsDevice.OpenGLCapabilities.DirectStateAccess == DirectStateAccess.None) { graphicsDevice.BindManager.SetTexture(this, 0); if (!TextureFormatHelper.IsCompressed(Format)) { GL.TexSubImage3D(TextureTarget.Texture2DArray, mipLevel, 0, 0, 0, Width, Height, ArraySize, format.Item2, format.Item3, data.Pointer); } else { GL.CompressedTexImage3D(TextureTarget.Texture2DArray, mipLevel, format.Item1, Width, Height, ArraySize, 0, data.Size, data.Pointer); } GL.TexParameter(TextureTarget.Texture2DArray, TextureParameterName.TextureMaxLevel, this.MipLevels - 1); } else if (graphicsDevice.OpenGLCapabilities.DirectStateAccess == DirectStateAccess.Extension) { if (!TextureFormatHelper.IsCompressed(Format)) { Ext.TextureSubImage3D(TextureID, (OpenTK.Graphics.OpenGL.TextureTarget)TextureTarget.Texture2DArray, mipLevel, 0, 0, 0, Width, Height, ArraySize, (OpenTK.Graphics.OpenGL.PixelFormat)format.Item2, (OpenTK.Graphics.OpenGL.PixelType)format.Item3, data.Pointer); } else { Ext.CompressedTextureImage3D(TextureID, (OpenTK.Graphics.OpenGL.TextureTarget)TextureTarget.Texture2DArray, mipLevel, (OpenTK.Graphics.OpenGL.ExtDirectStateAccess)EnumConverter.Convert(Format).Item1, Width, Height, ArraySize, 0, Marshal.SizeOf(data), data.Pointer); } OpenTK.Graphics.OpenGL.GL.Ext.TextureParameter(TextureID, (OpenTK.Graphics.OpenGL.TextureTarget)TextureTarget.Texture2DArray, OpenTK.Graphics.OpenGL.TextureParameterName.TextureMaxLevel, this.MipLevels - 1); } else if (graphicsDevice.OpenGLCapabilities.DirectStateAccess == DirectStateAccess.Core) { //OpenGL 4.5 } graphicsDevice.CheckGLError("Texture2DArray SetData"); }
internal Texture2DArray(GraphicsDevice graphicsDevice, int width, int height, int arraySize, TextureFormat format, int mipLevels, ResourceUsage usage = ResourceUsage.Normal, params DataRectangle[] data) : base(graphicsDevice, new System.Diagnostics.StackTrace(1)) { if (width <= 0) { throw new ArgumentOutOfRangeException("width", "Width must be positive."); } if (height <= 0) { throw new ArgumentOutOfRangeException("height", "Height must be positive."); } if (mipLevels < 0) { throw new ArgumentOutOfRangeException("mipLevels", "MipLevels must not be negative."); } if (format == TextureFormat.Unknown) { throw new ArgumentException("Format must not be TextureFormat.Unknown.", "format"); } if (width > graphicsDevice.OpenGLCapabilities.MaxTextureSize) { throw new PlatformNotSupportedException("width exceeds the maximum texture size"); } if (height > graphicsDevice.OpenGLCapabilities.MaxTextureSize) { throw new PlatformNotSupportedException("height exceeds the maximum texture size"); } if (width != height) { throw new PlatformNotSupportedException("Texture arrays must be quadratic"); } if (arraySize <= 0) { throw new ArgumentOutOfRangeException("Array Size must be at least one", "arraySize"); } if (data != null && data.Length != 0 && data.Length < mipLevels * arraySize) { throw new ArgumentOutOfRangeException("data", data.Length, string.Format("data Lenght is too small for specified arraySize and mipLevels, expected: {0}", mipLevels * arraySize)); } this.Width = width; this.Height = height; this.ArraySize = arraySize; this.MipLevels = mipLevels > 0 ? mipLevels : 1; this.Format = format; this.Usage = usage; var internalFormat = EnumConverter.Convert(Format); this.TextureID = GL.GenTexture(); if (graphicsDevice.OpenGLCapabilities.DirectStateAccess == DirectStateAccess.None) { graphicsDevice.BindManager.SetTexture(this, 0); GL.TexParameter(TextureTarget.Texture2DArray, TextureParameterName.TextureMaxLevel, this.MipLevels - 1); if (!TextureFormatHelper.IsCompressed(Format)) { if (graphicsDevice.OpenGLCapabilities.SupportsTextureStorage && graphicsDevice.OpenGLCapabilities.OpenGLVersion > new Version(4, 2)) { GL.TexStorage3D(TextureTarget3d.Texture2DArray, MipLevels, EnumConverter.ConvertSizedInternalFormat(Format), Width, Height, ArraySize); } else { GL.TexImage3D(TextureTarget.Texture2DArray, 0, internalFormat.Item1, width, height, arraySize, 0, internalFormat.Item2, internalFormat.Item3, IntPtr.Zero); } } } else if (graphicsDevice.OpenGLCapabilities.DirectStateAccess == DirectStateAccess.Extension) { Ext.TextureParameter(TextureID, OpenTK.Graphics.OpenGL.TextureTarget.Texture2D, OpenTK.Graphics.OpenGL.TextureParameterName.TextureMaxLevel, this.MipLevels - 1); if (!TextureFormatHelper.IsCompressed(Format)) { if (graphicsDevice.OpenGLCapabilities.SupportsTextureStorage && graphicsDevice.OpenGLCapabilities.OpenGLVersion > new Version(4, 2)) { Ext.TextureStorage3D(TextureID, (OpenTK.Graphics.OpenGL.ExtDirectStateAccess)TextureTarget3d.Texture2DArray, MipLevels, (OpenTK.Graphics.OpenGL.ExtDirectStateAccess)EnumConverter.ConvertSizedInternalFormat(Format), Width, Height, ArraySize); } else { Ext.TextureImage3D(TextureID, (OpenTK.Graphics.OpenGL.TextureTarget)TextureTarget.Texture3D, 0, (int)internalFormat.Item1, width, height, arraySize, 0, (OpenTK.Graphics.OpenGL.PixelFormat)internalFormat.Item2, (OpenTK.Graphics.OpenGL.PixelType)internalFormat.Item3, IntPtr.Zero); } } } else if (graphicsDevice.OpenGLCapabilities.DirectStateAccess == DirectStateAccess.Core) { } if (data != null) { for (int i = 0; i < data.Length; i++) { int arrayIndex = i / MipLevels; int mipIndex = i - arrayIndex * MipLevels; //Macht Sinn weil int gerundet wird SetData(data[i], arrayIndex, 0); } } graphicsDevice.CheckGLError(); }
public void DrawIndexed(int indexCount, int firstIndexLocation, int firstVertexLocation) { if (currentVertexBuffer == null) { throw new InvalidOperationException("Tried to draw without a vertexbuffer set."); } if (currentIndexBuffer == null) { throw new InvalidOperationException("Tried to draw without an indexbuffer set."); } ApplyState(); GL.DrawElements((BeginMode)EnumConverter.Convert(currentState.PrimitiveType), indexCount, EnumConverter.Convert(currentIndexBuffer.Format), firstVertexLocation * graphicsDevice.GetSizeOf(currentIndexBuffer.Format)); }
private void ApplyState() { if (currentState.Shader == null) { throw new InvalidOperationException("A shader is not set to the render context."); } var shader = graphicsDevice.Cast <Shader>(currentState.Shader, "currentState.Shader"); graphicsDevice.BindManager.Shader = shader; if (currentState.Rasterizer != null && currentState.Rasterizer != currentRasterizer) { RasterizerState rasterizer = graphicsDevice.Cast <RasterizerState>(currentState.Rasterizer, "currentState.Rasterizer"); rasterizer.Apply(currentRasterizer); currentRasterizer = rasterizer; } if (currentState.Blend != null && currentState.Blend != currentBlend) { BlendState blend = graphicsDevice.Cast <BlendState>(currentState.Blend, "currentState.Blend"); blend.Apply(currentBlend); currentBlend = blend; } if (currentState.DepthStencil != null && currentState.DepthStencil != currentDepthStencil) { DepthStencilState depthStencil = graphicsDevice.Cast <DepthStencilState>(currentState.DepthStencil, "currentState.DepthStencil"); depthStencil.Apply(currentDepthStencil, currentStencilReference); currentDepthStencil = depthStencil; } // Das VertexArrayObject speichert die Attribute calls eines bestimmten Shaders // Falls ein anderer Shader gesetzt ist oder diese Attribute gesetzt sind, müssen diese VertexAttributePointer gesetzt werden if (currentVertexBuffer.Shader != currentState.Shader) { if (!currentState.Shader.VertexDescription.EqualsIgnoreOrder(currentVertexBuffer.Description)) { throw new GraphicsException("Current shader VertexDescription doesn't match the description of the current VertexBuffer"); } VertexElement[] elements = currentVertexBuffer.Description.GetElements(); for (int i = 0; i < currentVertexBuffer.Description.ElementCount; i++) { GL.BindAttribLocation(shader.ProgramID, i, EnumConverter.Convert(elements[i].Usage)); } currentVertexBuffer.Shader = shader; } if (!graphicsDevice.OpenGLCapabilities.VertexAttribBinding) { graphicsDevice.BindManager.VertexArray = currentVertexBuffer.VaoID; if (currentVertexBuffer.LayoutDirty) { if (!currentState.Shader.VertexDescription.EqualsIgnoreOrder(currentVertexBuffer.Description)) { throw new GraphicsException("Current shader VertexDescription doesn't match the description of the current VertexBuffer"); } graphicsDevice.BindManager.VertexBuffer = currentVertexBuffer; int offset = 0; VertexElement[] elements = currentVertexBuffer.Description.GetElements(); for (int i = 0; i < graphicsDevice.OpenGLCapabilities.MaxVertexAttribs; i++) { if (i < currentVertexBuffer.Description.ElementCount) { GL.EnableVertexAttribArray(i); GL.VertexAttribPointer(i, graphicsDevice.GetComponentsOf(elements[i].Type), VertexAttribPointerType.Float, false, graphicsDevice.GetSizeOf(currentVertexBuffer.Description), offset); offset += graphicsDevice.GetSizeOf(elements[i].Type); } else { GL.DisableVertexAttribArray(i); } } currentVertexBuffer.LayoutDirty = false; } } else { if (!currentState.Shader.VertexDescription.EqualsIgnoreOrder(currentVertexBuffer.Description)) { throw new GraphicsException("Current shader VertexDescription doesn't match the description of the current VertexBuffer"); } graphicsDevice.BindManager.VertexBuffer = null; int layout = graphicsDevice.GetLayout(currentVertexBuffer.Description, graphicsDevice.Cast <Shader>(currentState.Shader, "currentState.shader")); graphicsDevice.BindManager.VertexArray = layout; graphicsDevice.BindManager.SetVertexBuffer(0, currentVertexBuffer); } graphicsDevice.BindManager.IndexBuffer = currentIndexBuffer; graphicsDevice.CheckGLError("RenderContext.ApplyState"); }
internal Sampler(GraphicsDevice graphicsDevice, SamplerInfo info) : base(graphicsDevice, new System.Diagnostics.StackTrace(1)) { Info = info; if ((Info.MagFilter == TextureFilter.Anisotropic || Info.MinFilter == TextureFilter.Anisotropic) && (!graphicsDevice.OpenGLCapabilities.SupportsAnisotropicFiltering || Info.MaximumAnisotropy > graphicsDevice.OpenGLCapabilities.MaxAnisotropicFiltering)) { throw new PlatformNotSupportedException("Anisotropic filtering is not supported at that level or at all."); } if (Info.MaximumAnisotropy == 0 && (Info.MagFilter == TextureFilter.Anisotropic || Info.MinFilter == TextureFilter.Anisotropic)) { throw new ArgumentException("MaximumAnisotropy must not be 0"); } if (Info.MipLodBias > graphicsDevice.OpenGLCapabilities.MaxTextureLoDBias) { throw new PlatformNotSupportedException("MipLoDBias is higher than max lod bias."); } SamplerID = GL.GenSampler(); //AddressMode GL.SamplerParameter(SamplerID, SamplerParameterName.TextureWrapS, (float)EnumConverter.Convert(Info.AddressU)); GL.SamplerParameter(SamplerID, SamplerParameterName.TextureWrapT, (float)EnumConverter.Convert(Info.AddressV)); GL.SamplerParameter(SamplerID, SamplerParameterName.TextureWrapR, (float)EnumConverter.Convert(Info.AddressW)); graphicsDevice.CheckGLError(); //Filtering Tuple <TextureMinFilter, TextureMagFilter> filter = EnumConverter.Convert(Info.MinFilter, Info.MagFilter, Info.MipFilter); TextureMinFilter min = (TextureMinFilter)filter.Item1; TextureMagFilter mag = (TextureMagFilter)filter.Item2; GL.SamplerParameter(SamplerID, SamplerParameterName.TextureMinFilter, (float)min); GL.SamplerParameter(SamplerID, SamplerParameterName.TextureMagFilter, (float)mag); GL.SamplerParameter(SamplerID, SamplerParameterName.TextureMaxAnisotropyExt, Info.MaximumAnisotropy); //Border color GL.SamplerParameter(SamplerID, SamplerParameterName.TextureBorderColor, new float[] { Info.BorderColor.R, Info.BorderColor.G, Info.BorderColor.B, Info.BorderColor.A }); //Compare modes if (Info.Type == SamplerType.Comparison) { GL.SamplerParameter(SamplerID, SamplerParameterName.TextureCompareMode, (float)TextureCompareMode.CompareRefToTexture); GL.SamplerParameter(SamplerID, SamplerParameterName.TextureCompareFunc, (float)EnumConverter.Convert(Info.ComparisonFunction)); } else { GL.SamplerParameter(SamplerID, SamplerParameterName.TextureCompareMode, (float)TextureCompareMode.None); } //LoD GL.SamplerParameter(SamplerID, SamplerParameterName.TextureMinLod, Info.MinimumLod); GL.SamplerParameter(SamplerID, SamplerParameterName.TextureMaxLod, Info.MaximumLod); GL.SamplerParameter(SamplerID, SamplerParameterName.TextureLodBias, Info.MipLodBias); graphicsDevice.CheckGLError(); }