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-- works with type signature
--frag :: (Vec 4 Float,Vec 2 Float) -> Vec 4 Float
frag = \(x,uv) -> x
makeFrame (vertexstream :: PrimitiveStream Triangle (Vec 4 Float,Vec 2 Float))
= imageFrame (emptyDepthImage 1, emptyColorImage navy)
`overlay` fragments
where
fragments =
vertexstream
& mapPrimitives (\(x,uv) -> (x,x,uv))
& rasterizePrimitives (TriangleCtx CullNone PolygonFill NoOffset LastVertex) (Smooth,Smooth)
& mapFragments frag
& accumulateWith (DepthOp Less True, ColorOp NoBlending (V4 True True True True))
main = renderFrame $
makeFrame (fetch "stream4" (Attribute "position4",Attribute "vertexUV"))
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