Writing float to Rfloat texture in c# ?

Unity Engine
1

Hi All,

I want to write float number into a Rfloat texture, but I can’t succeed using setPixel or setPixel32.
Here is a basic sample (no real usage just for sample).

    void setFloatToTexture()
    {
        Texture2D tex = new Texture2D (128,128,TextureFormat.RFloat,false);
        Color32[] pixels = new Color32[128*128];

        for (int i = 0; i < 128*128; i++)
        {
            float value = 234.23f*i;
            pixels[i] = new Color32(value, 0.0f ,0.0f,1.0f);
        }
        tex.SetPixels32(pixels, 0);
        tex.Apply();
    }

The problem is that Color32 accept only bytes, so i get an error.
Does someone know how to do it? a small code sample would be appreciated.

Thanks!

2

Options:
A) Use Color instead of Color32, and SetPixels instead of SetPixels32
B) change your Color32 constructor parameters to 0-255 instead of floats

Although your first/red parameter is broken in either case. Color32 takes an int from 0-255 (you’re calculating and feeding it a float), while Color takes values from 0 to 1.0 (You’ll get black for the first pixel, then solid red for all other pixels). What exactly is that math intended to do?

3

Thanks StarManta !!

Using just Color and SetPixels works well.