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Vladimir (vbSigma)
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Sep 25 2021, 11:40 PM (16 w, 5 d)

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Oct 15 2021

Vladimir (vbSigma) added a comment to T91718: Adaptive sampling down-samples volume scattered shaded objects.

I tried, but V3 is totally different ... tried equivalent and it seems V3 does not have issue.
I recommend further study by a person familiar with V3.

Oct 15 2021, 1:21 AM · BF Blender

Sep 29 2021

Vladimir (vbSigma) added a comment to T91712: CPU/Cycles/Branched path tracing rendering crashes as EXCEPTION_ACCESS_VIOLATION at direct_emissive_eval.

Yes, it could be hardware fault, and, bug is not repetitive...pure random. Now, I render using v2.9 and it seems more stable...no crashing....and even if it crashes next try is success. As soon as possible I will try to build Blender. Freely close this as "unknown".
Thanks very much!

Sep 29 2021, 3:09 PM · BF Blender

Sep 28 2021

Vladimir (vbSigma) added a comment to T91712: CPU/Cycles/Branched path tracing rendering crashes as EXCEPTION_ACCESS_VIOLATION at direct_emissive_eval.

Just forget it please. I will download code and see what is happening. Sorry for disturbance.!

Sep 28 2021, 4:32 PM · BF Blender
Vladimir (vbSigma) added a comment to T91718: Adaptive sampling down-samples volume scattered shaded objects.

OK, that's fine for me...sorry for disturbance, didn't understand LTS policy.

Sep 28 2021, 4:19 PM · BF Blender
Vladimir (vbSigma) added a comment to T91712: CPU/Cycles/Branched path tracing rendering crashes as EXCEPTION_ACCESS_VIOLATION at direct_emissive_eval.

@Richard Antalik (ISS)
I'm not surprised, it is hardly reproducible. Sometimes it is 55-th frame, sometimes 200+, sometimes every tenth... Did you tried full animation 480 frames, or more?

Sep 28 2021, 4:15 PM · BF Blender

Sep 27 2021

Vladimir (vbSigma) updated the task description for T91712: CPU/Cycles/Branched path tracing rendering crashes as EXCEPTION_ACCESS_VIOLATION at direct_emissive_eval.
Sep 27 2021, 9:17 PM · BF Blender
Vladimir (vbSigma) added a comment to T91718: Adaptive sampling down-samples volume scattered shaded objects.

@Richard Antalik (ISS) ... I have tried at v3 alpha. It is very new to me and it is hard for me to put new render engine in equivalent situation like when rendering by v2.934. But, for v3.0 case, it seems there is no problem. Again, I'm not sure how to tune it at v3 alpha.

Sep 27 2021, 9:08 PM · BF Blender
Vladimir (vbSigma) updated the task description for T91718: Adaptive sampling down-samples volume scattered shaded objects.
Sep 27 2021, 8:59 PM · BF Blender
Vladimir (vbSigma) updated the task description for T91712: CPU/Cycles/Branched path tracing rendering crashes as EXCEPTION_ACCESS_VIOLATION at direct_emissive_eval.
Sep 27 2021, 8:13 PM · BF Blender
Vladimir (vbSigma) updated the task description for T91712: CPU/Cycles/Branched path tracing rendering crashes as EXCEPTION_ACCESS_VIOLATION at direct_emissive_eval.
Sep 27 2021, 7:38 PM · BF Blender
Vladimir (vbSigma) updated the task description for T91712: CPU/Cycles/Branched path tracing rendering crashes as EXCEPTION_ACCESS_VIOLATION at direct_emissive_eval.
Sep 27 2021, 7:38 PM · BF Blender
Vladimir (vbSigma) updated the task description for T91712: CPU/Cycles/Branched path tracing rendering crashes as EXCEPTION_ACCESS_VIOLATION at direct_emissive_eval.
Sep 27 2021, 7:37 PM · BF Blender
Vladimir (vbSigma) added a comment to T91712: CPU/Cycles/Branched path tracing rendering crashes as EXCEPTION_ACCESS_VIOLATION at direct_emissive_eval.

OK, I have found better way to invoke crash. I have updated task and changed steps for to reproduce crash.

Sep 27 2021, 7:35 PM · BF Blender
Vladimir (vbSigma) updated the task description for T91712: CPU/Cycles/Branched path tracing rendering crashes as EXCEPTION_ACCESS_VIOLATION at direct_emissive_eval.
Sep 27 2021, 7:28 PM · BF Blender
Vladimir (vbSigma) added a comment to T91718: Adaptive sampling down-samples volume scattered shaded objects.

It is hard to compare v3.0 vs 2.934 LTS. I specifically use Branched PT because scene is 360deg light source and BPT gives me better performance, faster convergence. But, I will try to repo on v3.0.

Sep 27 2021, 6:06 PM · BF Blender

Sep 26 2021

Vladimir (vbSigma) updated the task description for T91712: CPU/Cycles/Branched path tracing rendering crashes as EXCEPTION_ACCESS_VIOLATION at direct_emissive_eval.
Sep 26 2021, 11:56 AM · BF Blender
Vladimir (vbSigma) updated the task description for T91718: Adaptive sampling down-samples volume scattered shaded objects.
Sep 26 2021, 11:45 AM · BF Blender
Vladimir (vbSigma) updated the task description for T91718: Adaptive sampling down-samples volume scattered shaded objects.
Sep 26 2021, 11:21 AM · BF Blender
Vladimir (vbSigma) updated the task description for T91718: Adaptive sampling down-samples volume scattered shaded objects.
Sep 26 2021, 11:14 AM · BF Blender
Vladimir (vbSigma) updated the task description for T91718: Adaptive sampling down-samples volume scattered shaded objects.
Sep 26 2021, 11:10 AM · BF Blender
Vladimir (vbSigma) updated the task description for T91718: Adaptive sampling down-samples volume scattered shaded objects.
Sep 26 2021, 10:34 AM · BF Blender
Vladimir (vbSigma) created T91718: Adaptive sampling down-samples volume scattered shaded objects.
Sep 26 2021, 10:32 AM · BF Blender
Vladimir (vbSigma) updated the task description for T91712: CPU/Cycles/Branched path tracing rendering crashes as EXCEPTION_ACCESS_VIOLATION at direct_emissive_eval.
Sep 26 2021, 12:24 AM · BF Blender
Vladimir (vbSigma) created T91712: CPU/Cycles/Branched path tracing rendering crashes as EXCEPTION_ACCESS_VIOLATION at direct_emissive_eval.
Sep 26 2021, 12:22 AM · BF Blender