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renderWire fb = let
blend = Blend (FuncSubtract,FuncAdd) ((SrcColor,SrcColor),(SrcColor,OneMinusSrcAlpha)) (V4 0.0 1.0 0.0 0.0)
modelViewProj = Uniform "viewProj" :: Mat 4 4 Float
polyMode = PolygonLine 20.0
polyMode' = PolygonPoint (PointSize 10.0)
polyMode'' = PolygonFill
rasterCtx = TriangleCtx CullNone polyMode (Offset (-1) 0) FirstVertex
fragmentCtx = (DepthOp Lequal True,ColorOp NoBlending (V4 True True True True))
vertexShader (v,n) = (PrimMulMatVec modelViewProj (v3FToV4F v), v3FToV4F n)
vertexStream = fetch "missing shader" (Attribute "position" :: Vec 3 Float,Attribute "color" :: Vec 3 Float)
primitiveStream = mapPrimitives vertexShader vertexStream
fragmentStream = rasterizePrimitives rasterCtx ((Smooth)) primitiveStream
fragmentShader = \((f)) -> ((V4 1.0 1.0 1.0 1.0))
in accumulate fragmentCtx fragmentShader fragmentStream fb
render fb = let
blend = Blend (FuncSubtract,FuncAdd) ((SrcColor,SrcColor),(SrcColor,OneMinusSrcAlpha)) (V4 0.0 1.0 0.0 0.0)
modelViewProj = Uniform "viewProj" :: Mat 4 4 Float
polyMode = PolygonLine 20.0
polyMode' = PolygonPoint (PointSize 10.0)
polyMode'' = PolygonFill
rasterCtx = TriangleCtx CullNone polyMode'' NoOffset FirstVertex
fragmentCtx = accumulationContext (DepthOp Less True,ColorOp NoBlending (V4 True True True True))
vertexShader (v,n) = (PrimMulMatVec modelViewProj (v3FToV4F v), v3FToV4F n)
vertexStream = fetch "missing shader" (Attribute "position" :: Vec 3 Float,Attribute "color" :: Vec 3 Float)
primitiveStream = mapPrimitives vertexShader vertexStream
fragmentStream = rasterizePrimitives rasterCtx ((Smooth)) primitiveStream
fragmentShader = \((f)) -> ((f))-- (V4 1.0 1.0 1.0 0.2)
in accumulate fragmentCtx fragmentShader fragmentStream fb
main = let
emptyFB = FrameBuffer (DepthImage @1 1000,ColorImage @1 (V4 0.0 0.0 0.4 1.0))
in ScreenOut $ renderWire $ render emptyFB
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