Chaos Corona Forum
Chaos Corona for 3ds Max => [Max] Bug Reporting => [Max] Resolved Bugs => Topic started by: Noah45 on 2015-10-30, 02:36:42
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Every -other Max file I open and render does this: CPU utilization, a double digit loss in speed, IR vs. VFB+
More info in post #13
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- Is the rendering actually going slower?
- Is there a difference if you turn off all the color correction?
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Yes, passes take disproportionately longer for a similar resolution.
No difference if color correction is on or off.
Has anyone experienced a similar difference?
I'm not sure if there is a solution, and I'll just have to workaround.
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113 views and one response?
Is there additional information needed ?
Am I not phrasing this correctly?
Seems to me it is a Corona Render Software issue.
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Why, because out of those 113 you think everyone uses VFB+ ?
I for example didn't encounter this issue, and my PC renders 100perc. using VFB+ instead of Corona framebuffer but I will try some comparisons to get some passes per minute info.
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They should be using VFB+, it's a great tool :] But unlikely that the VFB+ script would affect the performance. The same condition existed prior to installing VFB+
I do have Max files that render @ 100%, but other Max files render @ ~62% . IR always 100%
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I do have Max files that render @ 100%, but other Max files render @ ~62% . IR always 100%
It would be great if you could supply such scene for Corona team to investigate, maybe there's some bugs hidden.
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^Thanks, I'll make 2 scenes, 1 that has both FB/VFB render @ 100%, and a 2nd that is ~62%FB/100%VFB.
Today I reinstalled MAX2016 and RC6, same results
IT friend @ work thinks it may call for a windows reinstall.
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The same condition existed prior to installing VFB+
Wait, what? I've lost track of what you're trying to claim. Your initial post showed a comparison of the same scene rendered using corona VFB vs. VFB+. Which is it?
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Sorry for confusion. Top image is IR.
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But why did you label this as VFB+ if it happened before installing VFB+ ?
Basically, what does it have to do with VFB+ at all ?
Didn't you mean IR vs Normal rendering ? IR just uses Corona framebuffer always right now. Simply switch your framebuffer to Corona back and do the comparison again.
Like in this thread of yours with same issue:
https://forum.corona-renderer.com/index.php/topic,9886.msg63178.html#msg63178
And send such scene to Maru/Ondra.
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It's a simple question that is getting over done. Nevermind
Solved?
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Solved? How? Does all your scenes renders at 100% now? If not, you should take all available actions to do so, like reporting a bug and providing enough material for devs to investigate problem and fix a bug in case there is such. To render scenes at half a power is simply not acceptable.
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thanks romullus
1446307746_LJS2_34darkblugray22.7z file uploaded
screenshot for Maru/Ondra.
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Moved to bug reporting board, changed topic title.
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Additional information for troubleshooting
The example uploaded will only render between ~68-74% for both regular and interactive.
Some Max files will render all @ 100%, and others vary
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Every -other Max file I open and render does this: CPU utilization, a double digit loss in speed, IR vs. VFB+
More info in post #13
Turn off the "Low priority" option @ render settings ... it may be helped !!
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Was worth a try, and it did seem to average a couple % pts. (75% vs ~72%) thanks
Uploaded a new file for the Corona Team.
1446341553_Test2.7z
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both scenes render here fine. Have you tried unloading the VFB+ and re-rendering, or trying Corona VFB? Alternatively, you can capture a minidump while Corona is rendering (see https://coronarenderer.freshdesk.com/support/solutions/articles/5000524006) and send it to us, we can take a look if something is blocking the computation
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Picked that same project up, and it's cooking along nicely. I'll take a mini dump, if it happens again... : ]
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seems irreproducible
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I have a similar problem, cpu utilization drops to 60ish%. Also using VFB+, will check if native Corona FB renders better. I think it also has something to do with Siger materials.