Hi! I have a special problem in my project, I need to exchange the R,G and B channel of a RenderTexture. Now i achieve this in OnRender{} and exchange R,B and B channel pixel by Pixel. Can I ExChange R,G and B channel using Shader?
Well, a shader can do that.
If you just want to render a texture on an object with different channels, write a shader that does that.
For example you can create a new surface shader and change the line
fixed4 c = tex2D (_MainTex, IN.uv_MainTex) * _Color;
to
fixed4 c = tex2D (_MainTex, IN.uv_MainTex).gbra * _Color;
To swap the order.
Left is original, right is modified. All reds become blue, all greens become red and and blues become green.
