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Old 26th January 2021, 15:54   #2
Nitorami
Major Dude
 
Join Date: Mar 2008
Location: Erlangen
Posts: 933
I don't know what happens exactly and why but it appears you left uv6 undefined in the warp shader but then use it in the next line:

warp_35=`mus = abs(0.012/(sqrt(uv6.x)+0.0009))*(rad+0.19);

Uninitialised variables can produce all sorts of unexpected effects.

EDIT: I get the exactly same white screen in my original crystal palace preset if I delete the line where uv6 is defined.
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