20 lines
496 B
Python
20 lines
496 B
Python
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import math
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from pixel import Pixel
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def main(pixel: Pixel, resolution: tuple, frag_coord: tuple, time: float): # https://www.shadertoy.com/view/ldX3zr
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invAr = resolution[1] / resolution[0]
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uv = (frag_coord[0] / resolution[0], frag_coord[1] / resolution[1])
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col = [*uv, 0.5 + 0.5 * math.sin(time)]
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x = 0.5 - uv[0]
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y = (0.5 - uv[1]) * invAr
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r = -(x * x + y * y)
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z = 1.0 + 0.5 * math.sin((r + time * 0.035) / 0.013)
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for i in range(3):
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col[i] *= z
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pixel.background_color.set( *col )
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