How to set texture pixel ?

Hi,

How to set texture pixel ?
This code don't work :

Code (CSharp):

1. tex2D(_MainTex, float2(i.uv.x, i.uv.y)) = result;

Thanks

 

Nope, it won't.

You can either ender to a render texture using a shader and a Blit() and copy the results using ReadPixels back to a Texture2D, or you can modify the Texture2D directly from C# using GetPixels()/SetPixels(). You cannot directly modify a Texture2D from a shader, only read from them.

What exactly are you trying to do?

 

I try to debug this shader (last post) : https://forum.unity.com/threads/camera-raycast-error.1027111/#post-6653737