Add GLSL shader node using PyOpenGL#12148
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comfyanonymous merged 19 commits intomasterfrom Feb 20, 2026
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using moderngl package
pythongosssss
added
the
preview-gpu
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Kosinkadink
requested review from
Kosinkadink,
comfyanonymous and
guill
as code owners
Kosinkadink
previously approved these changes
Feb 18, 2026
* Add image operation blueprints * Add channels * Add glow * brightness/contrast * hsb * add glsl shader update system * shader nit iteration * add multipass for faster blur * more fixes * rebuild blueprints * print -> logger * Add edge preserving blur * fix: move _initialized flag to end of GLContext.__init__ Prevents '_vao' attribute error when init fails partway through and subsequent calls skip initialization due to early _initialized flag. * update valid ranges - threshold 0-100 - step 0+ * fix value ranges * rebuild node to remove extra inputs * Fix gamma step * clamp saturation in colorize instead of wrapping * Fix crash on 1x1 px images * rework description * remove unnecessary f --------- Co-authored-by: Hunter Senft-Grupp <hunter@comfy.org>
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