blob: 491bbc4e11b46df3d7ebebb9871b4ed603dc90e1 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
lineVertexStream = fetchArrays Line $ concat $
[[V3 i (-3.0) 0.0, V3 i 3.0 0.0] | i <- [-3.0..3.0] ]
++ [[V3 (-3.0) i 0.0, V3 3.0 i 0.0] | i <- [-3.0..3.0] ]
clear = FrameBuffer $ (DepthImage @1 1000, ColorImage @1 white) -- ...
lines = LineCtx 1.0 LastVertex
colorFragmentCtx = accumulationContext (DepthOp Less True, ColorOp NoBlending (V4 True True True True))
m = Uniform "Mouse" :: Vec 2 Float
rasterizeWith = rasterizePrimitives
mapFragments2 s fs = accumulate colorFragmentCtx ( \a -> fs a) s clear
transform s f = mapPrimitives (\(p) -> let v = v3FToV4F p in (f v, v)) s
trans :: Vec 4 Float -> Vec 4 Float
trans (V4 x y _ _) = V4 (t *! x) (0.5 *! m%x *! x*!y) (t *! y) 1.0
where t = m%y
rotate' v = (Uniform "MVP" :: Mat 4 4 Float) *. v
main = lineVertexStream
`transform` ((scale 0.1 . rotate') . trans)
& rasterizeWith lines Smooth
`mapFragments2` id
& ScreenOut
|
