@JakubValtar Any comments about this?

Hm. Could you post any code or screenshots for me, @jsundram? Are other blend modes ok?

@JakubValtar , here's code to repro: jsundram/issue_4376.pyde

You can see the results of the different renderers (4 is the blend mode for SUBTRACT, see PConstants.java#L260).

@JakubValtar , I wrote jsundram/render_all_blend_modes.pyde to run through all the blend modes for all of the renderers, and make 3 different graphics, so you can see where they differ. There are a bunch of differences between P2D/P3D and Java2D, although P2D and P3D appear to be the same everywhere (I didn't do any pixel diffing, just eyeballing). Weirdly, the subtract issue that I raised above doesn't show up -- maybe you can look at my code and see why?

This is a duplicate of #4019, blendMode is basically reset between setup() and draw(). For now, set it in draw() each frame. It should be fixed in #4341, which is waiting to be merged.

And btw, thanks for making the comparison. You see differences because DIFFERENCE, HARD_LIGHT, SOFT_LIGHT, OVERLAY, DODGE, and BURN modes are supported only in the default renderer (you are supposed to get an error message when you try to set unsupported mode). I revised and optimised all modes last year and I'm fairly confident they do what they should.

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.