question 3

[Maxi2022gt]

how do i import shaders?
do i have to import shadertoy shaders ?

[XeroOl]

Again, not part of the mirin template.

You can put Frag= or Vert= property on an actor in the XML
Generally, NotITG shaders won't be compatible with shadertoy, partly because shadertoy's variable names are a bit different, and partly because shadertoy uses a newer glsl version, while NotITG is on old glsl.

[Maxi2022gt]

so what platform do i put shaders?

[XeroOl]

I think the best advice for shaders is to look at how other modfiles use shaders.
#version 120 is a common target.

[Maxi2022gt]

i already learned how to use shaders.