Integrator does not switch back to progressive automatically when using GPU, after using non progressive on CPU #33909

New Issue

john kearvell · 2013-01-17T16:00:28+01:00

john kearvell commented

2013-01-17 16:00:28 +01:00

%%%--- Operating System, Graphics card ---
Ubuntu 12.1, nvidia GTX460

- Blender version with error, and version that worked ---

Buildbot r53872

- Short description of error ---

After changing to the non-progressive integrator using CPU for rendering, I noticed that if I change back to GPU without turning the progressive check box back on, the number of samples set for GPU is ignored and the number of samples actually rendered are those set in AA samples using the non progressive integrator.

- Steps for others to reproduce the error (preferably based on attached .blend file) ---

Start any scene
Using GPU rendering, set number of samples to an amount (eg. 200).
Render
Change to CPU
Turn off progressive rendering, set samples to low amount (eg. AA 5)
Render
Change back to GPU, using Device pulldown, but don't turn progessive back on.
Render - The scene will now only render with the number of samples set in AA section of the non progressive integrator, regardless of how many samples you set for rendering.

I would have assumed that when changing back to GPU, progressive should be re-enabled automatically however, this does not appear to be the case. This confused me for a while as I could not understand why even though I had set 200 samples I was only getting a few in the render (5).

Maybe this should be an automatic process? However, if the intention is to enable non progressive rendering for GPU in the future (I don't know if this is possible), then please ignore.

%%%

%%%--- Operating System, Graphics card --- Ubuntu 12.1, nvidia GTX460 - Blender version with error, and version that worked --- Buildbot r53872 - Short description of error --- After changing to the non-progressive integrator using CPU for rendering, I noticed that if I change back to GPU without turning the progressive check box back on, the number of samples set for GPU is ignored and the number of samples actually rendered are those set in AA samples using the non progressive integrator. - Steps for others to reproduce the error (preferably based on attached .blend file) --- 1. Start any scene 2. Using GPU rendering, set number of samples to an amount (eg. 200). 3. Render 4. Change to CPU 5. Turn off progressive rendering, set samples to low amount (eg. AA 5) 6. Render 7. Change back to GPU, using Device pulldown, but don't turn progessive back on. 8. Render - The scene will now only render with the number of samples set in AA section of the non progressive integrator, regardless of how many samples you set for rendering. I would have assumed that when changing back to GPU, progressive should be re-enabled automatically however, this does not appear to be the case. This confused me for a while as I could not understand why even though I had set 200 samples I was only getting a few in the render (5). Maybe this should be an automatic process? However, if the intention is to enable non progressive rendering for GPU in the future (I don't know if this is possible), then please ignore. %%%

john kearvell commented

2013-01-17 16:00:28 +01:00

Changed status to: 'Open'

Thomas Dinges commented

2013-01-17 20:53:49 +01:00

%%%Fix in SVN 53885. Thanks for the report. %%%

Thomas Dinges commented

2013-01-17 20:53:49 +01:00

Changed status from 'Open' to: 'Resolved'

Thomas Dinges closed this issue

2013-01-17 20:53:49 +01:00

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Integrator does not switch back to progressive automatically when using GPU, after using non progressive on CPU #33909