I am trying to render some openGL scene offline and I can not get the same results - the recording looks way different. I was trying various things over the last few days but no success. Please see the attached pictures below. One is titled Good (this is a screenshot of recording made with QicktimePlayer hence real-time recording) and the other one is called Bad (offline render using jit.gl.node, jit.gl.pass and jit.record).

When you compare the two images you see that the offline render responds differently to light (don't mind the difference in composition because it is a non-repeatable algorithmic drawing) - the "Good" is much brighter, smeared lines have more tone variations and hence the overall image has more depth, you can see smeared dots that create curls....and all that is basically gone in the offline render. Why?

So the question is: what magical settings on whatever objects (jit.gl.render? jit.gl.node? jit.gl.pass?) do I need in order to get EXACTLY the same offline render?

I am working in UHD resolution and I need 60FPS. I have FSAA 1 on jit.gl.node. I also realised that if I don't manually change the quality on jit.gl.pass from LO to MID to HIGH and back to LO (which I need for the smearing effect) the result is even much worse - so I guess the part if not the whole problem is in jit.gl.pass?

PS: unfortunately I can not share the patch because automations and MIDI triggers come from Ableton and it's not a straightforward process to get to the stage that is captured on the attached photos.

So the question is: what magical settings on whatever objects (jit.gl.render? jit.gl.node? jit.gl.pass?) do I need in order to get EXACTLY the same offline render? 

PS: unfortunately I can not share the patch because automations and MIDI triggers come from Ableton and it's not a straightforward process to get to the stage that is captured on the attached photos.


massive-quality-difference-when-capturing-to-jit-gl-node-jit-gl-pass

maybe you can try exporting single frames as in image sequence in TIFF format using jit.matrix exportimage?

what codec are you using?
maybe you can try exporting single frames as in image sequence in TIFF format using jit.matrix exportimage?


The problem is not in jit.record because even if I remove it and use videoplane to display the captured video the problem remains the same. The problem must be in jit.gl.node or jit.gl.pass.

gonna have to see a patch. feel free to email me offline at robr _at_ cycling74.com

massive quality difference when capturing to jit.gl.node--->jit.gl.pass