blob: a455eb32a3c012ff0ab5ccc9b56e666c503c2416 (
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
28
29
30
31
32
33
34
35
36
37
38
|
SHADER UTILITIES
================
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.
>> copy color from canvas at x/y
lex.assign( canvas.get(x,y) )
>> animate canvas up and to the left..
lex.assign( canvas.get(x+1,y+1) )
|
