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I have one question about one problem in my experiment with motion blur in Eevee. I know that in this time is not supported and maybe will be supported in future official release as another primary function, but I want to try some experiment with Vector pass from Cycles.

I would like to try to make render of car with animation of fast rotating back wheels. I make two scenes (duplicate, not linked).

I join this two scenes with separate Layers setups and render engines together in compositor. The same node tree is in the both scenes.

enter image description here

It works pretty well (picture), but It has a problem. It works only if I start rendering manualy by render button on scenes nodes, but it don´t work if I push F12 or Ctrl+F12. It rendered all scenes only in one renderer in actual scene. It do not switch them.

Please help me find out a issue, where is a problem. Thanks a lot :).

Note: For this test I use model from Blender Corvette modelling tutorial from CG Masters

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  • $\begingroup$ that did come out really nice. I think you'll have to script rendering with multiple render engines. $\endgroup$ – David Jul 13 at 14:36
  • $\begingroup$ I'm doing something similar in that I have a shot copied to two scenes and I render some parts w. cycles in one scene and the rest w. eevee in the other and then composite the results together. While hitting F12 to render a frame turns out fine things turn out differently with Ctrl-F12. I'm probably just going to do it in two steps: render w. cycles and save each rendered frame to an EXR Multilayer file. Then I'll do the eevee renders and at the same time combine them with the EXRs in the compositor. I know that works. $\endgroup$ – B Layer Sep 6 at 6:02

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