User/Final shader improvements

[Meakk]

Is your feature request related to a problem? Please describe. There is a feature in F3D allowing the user to specify a final pixel color, --final-shader, based on the current pixel color computed by the renderer.
At the moment, only the source texture and the resolution can be used from the uniform variables.

Describe the solution you'd like We could add other uniform properties. The mandatory one would be the "time" (elapsed from the app start?), to allow animated shaders. Another requested is the background color.

Additional context See vtkF3DUserRenderPass::Render

[nahiim]

Hi NaHim here from Discord,

[mwestphal]

Nice, assigned :)

[mwestphal]

Hi @nahiim

Do you need help moving forward ? :)

Best,

[nahiim]

Yes sir. I'm kinda lost. I dont really know how to approach it. Although I haven't looked at it for a few days now.

[mwestphal]

Hi @nahiim we can help! Just ask specific questions, preferably on discord :)

[mwestphal]

Hi, @nahiim , do you need any help moving forward ?

[mwestphal]

Hi, @nahiim , do you need any help moving forward ?

[mwestphal]

Unassiging for now.