本文整理汇总了C#中Texture2D.Map方法的典型用法代码示例。如果您正苦于以下问题：C# Texture2D.Map方法的具体用法？C# Texture2D.Map怎么用？C# Texture2D.Map使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Texture2D的用法示例。
在下文中一共展示了Texture2D.Map方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: Make3D
private static Texture2D Make3D(Texture2D stereoTexture)
{
NvStereoImageHeader header = new NvStereoImageHeader(0x4433564e, 3840, 1080, 4, 0x00000002);
// stereoTexture contains a stereo image with the left eye image on the left half
// and the right eye image on the right half
// this staging texture will have an extra row to contain the stereo signature
Texture2DDescription stagingDesc = new Texture2DDescription()
{
ArraySize = 1,
Width = 2*size.Width,
Height = size.Height + 1,
BindFlags = BindFlags.None,
CpuAccessFlags = CpuAccessFlags.Write,
Format = SlimDX.DXGI.Format.R8G8B8A8_UNorm,
OptionFlags = ResourceOptionFlags.None,
Usage = ResourceUsage.Staging,
MipLevels = 1,
SampleDescription = new SampleDescription(1, 0)
};
Texture2D staging = new Texture2D(device, stagingDesc);
// Identify the source texture region to copy (all of it)
ResourceRegion stereoSrcBox = new ResourceRegion
{Front = 0, Back = 1, Top = 0, Bottom = size.Height, Left = 0, Right = 2*size.Width};
// Copy it to the staging texture
device.CopySubresourceRegion(stereoTexture, 0, stereoSrcBox, staging, 0, 0, 0, 0);
// Open the staging texture for reading
DataRectangle box = staging.Map(0, MapMode.Write, SlimDX.Direct3D10.MapFlags.None);
// Go to the last row
//box.Data.Seek(stereoTexture.Description.Width*stereoTexture.Description.Height*4, System.IO.SeekOrigin.Begin);
box.Data.Seek(box.Pitch*1080, System.IO.SeekOrigin.Begin);
// Write the NVSTEREO header
box.Data.Write(data, 0, data.Length);
staging.Unmap(0);
// Create the final stereoized texture
Texture2DDescription finalDesc = new Texture2DDescription()
{
ArraySize = 1,
Width = 2 * size.Width,
Height = size.Height + 1,
BindFlags = BindFlags.ShaderResource,
CpuAccessFlags = CpuAccessFlags.Write,
Format = SlimDX.DXGI.Format.R8G8B8A8_UNorm,
OptionFlags = ResourceOptionFlags.None,
Usage = ResourceUsage.Dynamic,
MipLevels = 1,
SampleDescription = new SampleDescription(1, 0)
};
// Copy the staging texture on a new texture to be used as a shader resource
Texture2D final = new Texture2D(device, finalDesc);
device.CopyResource(staging, final);
staging.Dispose();
return final;
}示例2: ComputeBRDFIntegral
unsafe void ComputeBRDFIntegral( System.IO.FileInfo _TableFileName, uint _TableSize ) {
// ComputeShader CS = new ComputeShader( m_Device, new System.IO.FileInfo( "Shaders/ComputeBRDFIntegral.hlsl" ), "CS", new ShaderMacro[0] );
ComputeShader CS = new ComputeShader( m_Device, new System.IO.FileInfo( "Shaders/ComputeBRDFIntegral.hlsl" ), "CS", new ShaderMacro[] { new ShaderMacro( "IMPORTANCE_SAMPLING", "1" ) } );
Texture2D TexTable = new Texture2D( m_Device, _TableSize, _TableSize, 1, 1, PIXEL_FORMAT.RG32_FLOAT, false, true, null );
TexTable.SetCSUAV( 0 );
CS.Use();
CS.Dispatch( _TableSize >> 4, _TableSize >> 4, 1 );
CS.Dispose();
string DDSFileName = System.IO.Path.GetFileNameWithoutExtension( _TableFileName.FullName ) + ".dds";
// DirectXTexManaged.TextureCreator.CreateDDS( DDSFileName, TexTable );
throw new Exception( "Deprecated!" );
Texture2D TexTableStaging = new Texture2D( m_Device, _TableSize, _TableSize, 1, 1, PIXEL_FORMAT.RG32_FLOAT, true, false, null );
TexTableStaging.CopyFrom( TexTable );
TexTable.Dispose();
// Write tables
float2 Temp = new float2();
float F0_analytical;
float ambient_analytical;
float maxAbsoluteError_F0 = 0.0f;
float maxRelativeError_F0 = 0.0f;
float avgAbsoluteError_F0 = 0.0f;
float avgRelativeError_F0 = 0.0f;
float maxAbsoluteError_ambient = 0.0f;
float maxRelativeError_ambient = 0.0f;
float avgAbsoluteError_ambient = 0.0f;
float avgRelativeError_ambient = 0.0f;
float2[] Integral_SpecularReflectance = new float2[_TableSize];
PixelsBuffer Buff = TexTableStaging.Map( 0, 0 );
using ( System.IO.BinaryReader R = Buff.OpenStreamRead() )
using ( System.IO.FileStream S = _TableFileName.Create() )
using ( System.IO.BinaryWriter W = new System.IO.BinaryWriter( S ) )
for ( int Y=0; Y < _TableSize; Y++ ) {
float2 SumSpecularlyReflected = float2.Zero;
for ( int X=0; X < _TableSize; X++ ) {
Temp.x = R.ReadSingle();
Temp.y = R.ReadSingle();
W.Write( Temp.x );
W.Write( Temp.y );
SumSpecularlyReflected.x += Temp.x;
SumSpecularlyReflected.y += Temp.y;
// Check analytical solution
float NdotV = (float) X / (_TableSize-1);
float roughness = (float) Y / (_TableSize-1);
AnalyticalBRDFIntegral_Order3( NdotV, roughness, out F0_analytical, out ambient_analytical );
// AnalyticalBRDFIntegral_Order2( NdotV, roughness, out F0_analytical, out ambient_analytical );
float absoluteError_F0 = Math.Abs( F0_analytical - Temp.x );
float relativeError_F0 = F0_analytical > 1e-6f ? Temp.x / F0_analytical : 0.0f;
maxAbsoluteError_F0 = Math.Max( maxAbsoluteError_F0, absoluteError_F0 );
maxRelativeError_F0 = Math.Max( maxRelativeError_F0, relativeError_F0 );
avgAbsoluteError_F0 += absoluteError_F0;
avgRelativeError_F0 += relativeError_F0;
float absoluteError_ambient = Math.Abs( ambient_analytical - Temp.y );
float relativeError_ambient = ambient_analytical > 1e-6f ? Temp.x / ambient_analytical : 0.0f;
maxAbsoluteError_ambient = Math.Max( maxAbsoluteError_ambient, absoluteError_ambient );
maxRelativeError_ambient = Math.Max( maxRelativeError_ambient, relativeError_ambient );
avgAbsoluteError_ambient += absoluteError_ambient;
avgRelativeError_ambient += relativeError_ambient;
}
// Normalize and store "not specularly reflected" light
SumSpecularlyReflected = SumSpecularlyReflected / _TableSize;
float sum_dielectric = 1.0f - (0.04f * SumSpecularlyReflected.x + SumSpecularlyReflected.y);
float sum_metallic = 1.0f - (SumSpecularlyReflected.x + SumSpecularlyReflected.y);
Integral_SpecularReflectance[Y] = SumSpecularlyReflected;
}
TexTableStaging.UnMap( 0, 0 );
avgAbsoluteError_F0 /= _TableSize*_TableSize;
avgRelativeError_F0 /= _TableSize*_TableSize;
avgAbsoluteError_ambient /= _TableSize*_TableSize;
avgRelativeError_ambient /= _TableSize*_TableSize;
string TotalSpecularReflectionTableFileName = System.IO.Path.GetFileNameWithoutExtension( _TableFileName.FullName ) + ".table";
using ( System.IO.FileStream S = new System.IO.FileInfo( TotalSpecularReflectionTableFileName ).Create() )
using ( System.IO.BinaryWriter W = new System.IO.BinaryWriter( S ) )
for ( int i=0; i < _TableSize; i++ ) {
W.Write( Integral_SpecularReflectance[i].x );
W.Write( Integral_SpecularReflectance[i].y );
}
}示例3: LoadBitmapInTexture
private void LoadBitmapInTexture(Bitmap bitmap, Texture2D texture)
{
var rect = texture.Map(0, MapMode.WriteDiscard, MapFlags.None);
if (rect.Data.CanWrite)
{
for (int j = 0; j < texture.Description.Height; j++)
{
int rowStart = j * rect.Pitch;
rect.Data.Seek(rowStart, SeekOrigin.Begin);
for (int i = 0; i < texture.Description.Width; i++)
{
var color = bitmap.GetPixel(i, j);
rect.Data.WriteByte((byte)color.R);
rect.Data.WriteByte((byte)color.G);
rect.Data.WriteByte((byte)color.B);
rect.Data.WriteByte((byte)color.A);
}
}
}
texture.Unmap(0);
}示例4: HistogramTexture2Array
/// <summary>
/// Reads back a lobe texture histogram into an array
/// </summary>
/// <param name="_texHistogram_CPU"></param>
/// <param name="_scatteringOrder"></param>
/// <returns></returns>
public static double[,] HistogramTexture2Array( Texture2D _texHistogram_CPU, int _scatteringOrder )
{
int scattMin = _scatteringOrder-1; // Because scattering order 1 is actually stored in first slice of the texture array
int scattMax = scattMin+1; // To simulate a single scattering order
// int scattMax = MAX_SCATTERING_ORDER; // To simulate all scattering orders accumulated
int W = _texHistogram_CPU.Width;
int H = _texHistogram_CPU.Height;
double[,] histogramData = new double[W,H];
for ( int scatteringOrder=scattMin; scatteringOrder < scattMax; scatteringOrder++ ) {
PixelsBuffer Content = _texHistogram_CPU.Map( 0, scatteringOrder );
using ( BinaryReader R = Content.OpenStreamRead() )
for ( int Y=0; Y < H; Y++ )
for ( int X=0; X < W; X++ )
histogramData[X,Y] += W * H * R.ReadSingle();
Content.CloseStream();
_texHistogram_CPU.UnMap( 0, scatteringOrder );
}
return histogramData;
}