Andy

Forgive me if this is an easy question, but how can scalebias be performed on the GPU using a shader? I can see that a scalebias shader is already available but it doesn't offer any RGB control. Does it work in a different way or am I better using a different shader? Essentially I want to colour a white video different colours on the GPU.

Hi,
Forgive me if this is an easy question, but how can scalebias be performed on the GPU using a shader? I can see that a scalebias shader is already available but it doesn't offer any RGB control. Does it work in a different way or am I better using a different shader? Essentially I want to colour a white video different colours on the GPU.

scalebias-on-gpu

au contraire it does offer RGB control. There are 2 parameters if you

These are RGBA vectors you can set with for example [param scale 1. 1. 1. 1.]

au contraire it does offer RGB control.  There are 2 parameters if you
look at the shader file:

Ah of course. It didn't occur to me that they would be vectors. A bit obvious really, don't know how I missed it. Thanks for that.

Scalebias on GPU