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I have Texture3D. I want to read a part of it from CPU side.  I'm using SharpDX toolkit (v2.5.1).

My data is always 0. it's not working, but I don't get any errors in the output.

This is the source texture:

            testTex = Texture3D.New<float>(GraphicsDevice, wx, wy, wz, PixelFormat.R32.Float, texDat, TextureFlags.ShaderResource, sdx11.ResourceUsage.Default);

And I'm trying to read part of it here:

        tempFloat = new float[1];
        TextureDescription stagedTexDesc = new TextureDescription()
        {
            Height = 1,
            Width = 1,
            Depth = 1,
            MipLevels = 1,
            ArraySize = 1,
            Format = testTex.Format,
            Usage = sdx11.ResourceUsage.Staging,
            CpuAccessFlags = sdx11.CpuAccessFlags.Read | sdx11.CpuAccessFlags.Write,
        };
        texNew = Texture3D.New(GraphicsDevice, stagedTexDesc);

        deviceContext.CopySubresourceRegion(testTex, 0, new sdx11.ResourceRegion(iHPos.X, iHPos.Y, iHPos.Z, iHPos.X + 1, iHPos.Y + 1, iHPos.Z + 1), texNew, 0);
        texNew.GetData(tempFloat);

tempFloat[0] value is always 0.0. GetData method performs Map and Unmap of the resource automatically.
If I try to call GetData method on original texture then it seems that it gets the data correctly. Also, is there some better way to read the data?

I have a Texture3D. I want to read a part of it from CPU side. (I'm using the SharpDX toolkit (v2.5.1).)

My data is always 0, but the output shows no errors.

This is the source texture:

testTex = Texture3D.New<float>(GraphicsDevice, wx, wy, wz, PixelFormat.R32.Float, texDat, TextureFlags.ShaderResource, sdx11.ResourceUsage.Default);

I'm trying to read part of it here:

tempFloat = new float[1];
TextureDescription stagedTexDesc = new TextureDescription()
{
    Height = 1,
    Width = 1,
    Depth = 1,
    MipLevels = 1,
    ArraySize = 1,
    Format = testTex.Format,
    Usage = sdx11.ResourceUsage.Staging,
    CpuAccessFlags = sdx11.CpuAccessFlags.Read | sdx11.CpuAccessFlags.Write,
};
texNew = Texture3D.New(GraphicsDevice, stagedTexDesc);

deviceContext.CopySubresourceRegion(testTex, 0, new sdx11.ResourceRegion(iHPos.X, iHPos.Y, iHPos.Z, iHPos.X + 1, iHPos.Y + 1, iHPos.Z + 1), texNew, 0);
texNew.GetData(tempFloat);

tempFloat[0] value is always 0.0. The GetData method performs Map and Unmap of the resource automatically

If I try to call GetData on the original texture, it seems to get the data correctly.

Also, is there a better way to read the data?

I have a Texture3D and I would like to read just one part of it on the CPU.
  I'm using SharpDX toolkit (v2.5.1), and I expected this code to work but the data is always 0.
Also, I don't get any errors in the output.

This is the source texture:

            testTex = Texture3D.New<float>(GraphicsDevice, wx, wy, wz, PixelFormat.R32.Float, texDat, TextureFlags.ShaderResource, sdx11.ResourceUsage.Default);

And I'm trying to read part of it like this:

        tempFloat = new float[1];
        TextureDescription stagedTexDesc = new TextureDescription()
        {
            Height = 1,
            Width = 1,
            Depth = 1,
            MipLevels = 1,
            ArraySize = 1,
            Format = testTex.Format,
            Usage = sdx11.ResourceUsage.Staging,
            CpuAccessFlags = sdx11.CpuAccessFlags.Read | sdx11.CpuAccessFlags.Write,
        };
        texNew = Texture3D.New(GraphicsDevice, stagedTexDesc);

        deviceContext.CopySubresourceRegion(testTex, 0, new sdx11.ResourceRegion(iHPos.X, iHPos.Y, iHPos.Z, iHPos.X + 1, iHPos.Y + 1, iHPos.Z + 1), texNew, 0);
        texNew.GetData(tempFloat);

But tempFloat[0] value is always 0.0. GetData method performs Map and Unmap of the resource automatically.
If I try to call GetData method on original texture then it seems that it gets the data correctly. Also, is there some better way to read the data?

Thank you

I have Texture3D. I want to read a part of it from CPU side. I'm using SharpDX toolkit (v2.5.1).

My data is always 0. it's not working, but I don't get any errors in the output.

This is the source texture:

            testTex = Texture3D.New<float>(GraphicsDevice, wx, wy, wz, PixelFormat.R32.Float, texDat, TextureFlags.ShaderResource, sdx11.ResourceUsage.Default);

And I'm trying to read part of it here:

        tempFloat = new float[1];
        TextureDescription stagedTexDesc = new TextureDescription()
        {
            Height = 1,
            Width = 1,
            Depth = 1,
            MipLevels = 1,
            ArraySize = 1,
            Format = testTex.Format,
            Usage = sdx11.ResourceUsage.Staging,
            CpuAccessFlags = sdx11.CpuAccessFlags.Read | sdx11.CpuAccessFlags.Write,
        };
        texNew = Texture3D.New(GraphicsDevice, stagedTexDesc);

        deviceContext.CopySubresourceRegion(testTex, 0, new sdx11.ResourceRegion(iHPos.X, iHPos.Y, iHPos.Z, iHPos.X + 1, iHPos.Y + 1, iHPos.Z + 1), texNew, 0);
        texNew.GetData(tempFloat);

tempFloat[0] value is always 0.0. GetData method performs Map and Unmap of the resource automatically.
If I try to call GetData method on original texture then it seems that it gets the data correctly. Also, is there some better way to read the data?

I have a Texture3D and I would like to read just one part of it on the CPU.
I'm using SharpDX toolkit, and I expected this to work but the data is always 0.
Also, I don't get any errors in the output.

This is the source texture:

            testTex = Texture3D.New<float>(GraphicsDevice, wx, wy, wz, PixelFormat.R32.Float, texDat, TextureFlags.ShaderResource, sdx11.ResourceUsage.Default);

And I'm trying to read part of it like this:

        tempFloat = new float[1];
        TextureDescription stagedTexDesc = new TextureDescription()
        {
            Height = 1,
            Width = 1,
            Depth = 1,
            MipLevels = 1,
            ArraySize = 1,
            Format = testTex.Format,
            Usage = sdx11.ResourceUsage.Staging,
            CpuAccessFlags = sdx11.CpuAccessFlags.Read | sdx11.CpuAccessFlags.Write,
        };
        texNew = Texture3D.New(GraphicsDevice, stagedTexDesc);

        deviceContext.CopySubresourceRegion(testTex, 0, new sdx11.ResourceRegion(iHPos.X, iHPos.Y, iHPos.Z, iHPos.X + 1, iHPos.Y + 1, iHPos.Z + 1), texNew, 0);
        texNew.GetData(tempFloat);

But tempFloat[0] value is always 0.0. GetData method performs Map and Unmap of the resource automatically.
If I try to call GetData method on original texture then it seems that it gets the data correctly. Also, is there some better way to read the data?

Thank you

I have a Texture3D and I would like to read just one part of it on the CPU.
I'm using SharpDX toolkit (v2.5.1), and I expected this code to work but the data is always 0.
Also, I don't get any errors in the output.

This is the source texture:

            testTex = Texture3D.New<float>(GraphicsDevice, wx, wy, wz, PixelFormat.R32.Float, texDat, TextureFlags.ShaderResource, sdx11.ResourceUsage.Default);

And I'm trying to read part of it like this:

        tempFloat = new float[1];
        TextureDescription stagedTexDesc = new TextureDescription()
        {
            Height = 1,
            Width = 1,
            Depth = 1,
            MipLevels = 1,
            ArraySize = 1,
            Format = testTex.Format,
            Usage = sdx11.ResourceUsage.Staging,
            CpuAccessFlags = sdx11.CpuAccessFlags.Read | sdx11.CpuAccessFlags.Write,
        };
        texNew = Texture3D.New(GraphicsDevice, stagedTexDesc);

        deviceContext.CopySubresourceRegion(testTex, 0, new sdx11.ResourceRegion(iHPos.X, iHPos.Y, iHPos.Z, iHPos.X + 1, iHPos.Y + 1, iHPos.Z + 1), texNew, 0);
        texNew.GetData(tempFloat);

But tempFloat[0] value is always 0.0. GetData method performs Map and Unmap of the resource automatically.
If I try to call GetData method on original texture then it seems that it gets the data correctly. Also, is there some better way to read the data?

Thank you