Is there a Texture1D in XNA?

Question

I need to pass an array of Vector3 or Vector4's to my pixel shader. Is there something like a one dimensional texture that I can set from the CPU and sample on the GPU?

How about a 1 dimensional Texture2D? Texture2D SimpleTexture = new Texture2D(GraphicsDevice, 1, 100, false, SurfaceFormat.Color); — Elideb, Nov 16 '11 at 17:29
Yeah, I was thinking that too, but it limits you to no more than 4096 in either dimension and i need something like 76,800 entries — Mr Bell, Nov 16 '11 at 18:14
Was it really necessary to ask ***6*** questions in a row about how to do this? — Andrew Russell, Nov 17 '11 at 01:58
possible duplicate of [What does the pixel shader function tex1D do with a Texture2d](http://stackoverflow.com/questions/8157722/what-does-the-pixel-shader-function-tex1d-do-with-a-texture2d) — Neil Knight, Nov 17 '11 at 10:58
While my recent batch of questions are similar I think that individually they are asking about different things. For instance in Neil's call out I am asking about the functionality of tex1D and in this one I am asking if there is a 1d data structure. The way I figure someone might know if there is a 1d texture, but might not be familiar with the workings of hlsl function tex1d() — Mr Bell, Nov 17 '11 at 15:12

annonymously · Answer 1 · 2011-11-28T11:53:27.103

No there is no built-in class that you can use, but you can create your own one (untested):

public class Texture1D
{
    GraphicsDevice device;
    Vector4[] pixels;

    bool mipMap = false;
    SurfaceFormat Format;

    public Texture1D (GraphicsDevice Device, int Length)
    {
        pixels = new Vector4[Length];
        device = Device;
        Format = SurfaceFormat.Color;
    }

    public Texture1D (GraphicsDevice Device, int Length, bool mipMap, SurfaceFormat format)
    {
        pixels = new Vector4[Length];
        device = Device;
        this.mipMap = mipMap;
        Format = format;
    }
}

Is there a Texture1D in XNA?

1 Answers1