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SHADER UTILITIES
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These are little snippets which may be useful in writing your own shaders.
>> basic way to slow the frame rate of a shader.
window.zz=window.zz||0
if(!(x+y)) zz++
if (lex.bg != 1 && !(zz % 4)) {
...
}
>> handy for brushes - use color to mask brush shape
lex.opacity = lex.bg == colors.black ? 0 : 1
Tip: Set to "animate brush", then use option+shift (alt+shift) to
copy color from the canvas. Brush will have the "shape" of the
copied color only. Can be a cool effect when used with fg/bg only.
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