Hello everyone ! I am currently developping quite a big project, and for simplicity I have chosen to use Processing as a graphical engine. I am coding with Eclipse Neon. The issue is that I have developped GLSL Fragment shaders to accelerate image processing, and then apply them to a P2D PGraphics…

I am writing this answer to close subject : apparently to apply a shader, something has to already have been drawn onto the PGraphics object, weither it is P2D or not. The simple fix was to apply a background color before applying the shader, weither it is a modifyer fragment shader or a “rendering”…

Drawing a shader generated PGraphics onto a non OpenGL PGraphics object

Processing Coding Questions

GoToLoop December 15, 2020, 8:07pm 2

Maybe transferring the contents of pixels[] to another’s via arrayCopy() might work:

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Drawing a shader generated PGraphics onto a non OpenGL PGraphics object

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