gistfile1.txt

type TVert = tuple
  pos: vec3
  norm: vec3
  uv: vec2
type TMVP = tuple
  model: mat4x4
  view: mat4x4
  proj:mat4x4
type TVSOut = tuple
  uv: vec2
#this would come from some other library
#would need to be able to do image related things
#with it
type TImage
shader standard:
  using pervert input: TVert
  using uniform mvp: TMVP
  using texture tex: TImage
  vc to ps vsout: vec2
  vsproc(): vec4 =
    vsout = input.uv
    result = mvp.proj * mvp.view * mvp.model * input.pos
  psproc(): vec4 =
    result = sample(tex, vsout.uv)
    
#the generated code would have something like:
proc drawStandard(input: seq[TVert], mvp: TMVP, tex: TImage) = ...
    
#we could have seperate stages as well maybe something liek
vertex shader standardvs:
  using pervert input: TVert
  using uniform mvp: TMVP
  using vertex output: TVert.pos
  vsproc(): TVert = 
    result.pos = mvp.proj * mvp.view * mvp.model * input.pos
    result.norm = input.norm
    result.uv = input.uv
pixel shader standardps:
  using texture tex: TImage
  psproc(input: TVert): vec4 = 
    result = sample(tex, input.uv)