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Author Topic: Edge Mode Shadow Problem  (Read 1993 times)

EH2026

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Edge Mode Shadow Problem
« on: February 13, 2023, 07:58:37 PM »
Hi guys,

Any help appreciated, I've tried a few things but no luck. As of recently my edge trims appear to be misbehaving, they get trimmed in the viewport and in the render but they leave behind their shadow (untrimmed). I've tried bringing into a new file, checked loads of things but alas the problem persists.

Please see attached to understand.

Many thanks,

Jason

Arslan

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Re: Edge Mode Shadow Problem
« Reply #1 on: February 13, 2023, 11:59:27 PM »
Hi,

if you are using vrayDirt for paving material 'activate ignore invisible objects on vrayDirt settings' may fix the problem.

Best regards.

RealViz

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Re: Edge Mode Shadow Problem
« Reply #2 on: February 14, 2023, 08:47:50 AM »
Hi,

if you are using vrayDirt for paving material 'activate ignore invisible objects on vrayDirt settings' may fix the problem.

Best regards.
And increase max transp level in render.

Michal Karmazín

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Re: Edge Mode Shadow Problem
« Reply #3 on: February 14, 2023, 10:19:03 AM »
Hi,

As already mentioned by RealViz - the renderer most probably exceeded its default transparency limit (which could cause similar render artifacts) and increasing the Global switches - Max transp. levels (default value is 50) should help. Sometimes may be necessary to modify Secondary rays bias also. Please feel free to check this "Some key notes about Areas->Boundary Checking->Edge mode" related post: "In the case of very high-density scatters (like dense grass), many overlapping objects could be generated and V-Ray may exceed its default transparency limit (which can cause render artifacts)".

I hope that helps.

Best regards,

EH2026

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Re: Edge Mode Shadow Problem
« Reply #4 on: February 14, 2023, 11:41:18 AM »
Hi guys, tried all those things already, no dirt on objects, transparency set up from 50 -100, no difference.

Kind regards,

Jason

EH2026

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Re: Edge Mode Shadow Problem
« Reply #5 on: February 14, 2023, 03:15:48 PM »
Hi all, I have worked out a work around, it appears all the grass large presets have this problem, all the detail ones are fine, must be some bug somewhere..

Thanks,

Jason

Michal Karmazín

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Re: Edge Mode Shadow Problem
« Reply #6 on: February 15, 2023, 09:10:39 AM »
Hi Jason,

Let me mention, that sometimes it's needed to increase the Max transp. levels to a significantly higher value (even 500 or so).

Best regards,

RealViz

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Re: Edge Mode Shadow Problem
« Reply #7 on: February 15, 2023, 09:19:42 AM »
Check if you have Amb. Occlusion OFF in the renderer.

EH2026

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Re: Edge Mode Shadow Problem
« Reply #8 on: February 15, 2023, 09:54:08 AM »
Yep tried that RealViz, not AO, thanks for checking though !

Kind regards,

Jason

RealViz

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Re: Edge Mode Shadow Problem
« Reply #9 on: February 15, 2023, 10:58:53 AM »
So now all that's left to do is to send the scene (simplified). I'll check it.

Edit: Pls. max 2022 or older.
« Last Edit: February 15, 2023, 11:16:51 AM by RealViz »

EH2026

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Re: Edge Mode Shadow Problem
« Reply #10 on: February 20, 2023, 12:02:05 PM »
Thanks RealViz, the problem can be replicated in an empty new scene, I just saw an update to the forest pack lawns so maybe the guys have fixed it  :)

Will confirm later,

Cheers anyway

Jason

RealViz

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Re: Edge Mode Shadow Problem
« Reply #11 on: February 21, 2023, 01:17:38 PM »
I don't think it's a problem in the FP library. Probably something wrong in the renderer.

JO3814

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Re: Edge Mode Shadow Problem
« Reply #12 on: February 24, 2023, 09:54:28 AM »
Can you upload a simple scene here?

DS5736

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Re: Edge Mode Shadow Problem
« Reply #13 on: February 28, 2023, 03:06:27 PM »
Here's a scene but it's really just a vrayplane and a FP grass preset. The grass is based off the Common Grass 01 (large) preset, I just deleted two of the grass clumps to make the file smaller (and uploadeable). I've tried all of the above fixes (max transp. levels, no AO, etc) and nothing seems to work.  I'm running FP 8.0.9 and VRAY 6.10.02. I just recently updated both FP and VRAY to the latest so I'm not sure where this error popped up.

RealViz

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Re: Edge Mode Shadow Problem
« Reply #14 on: February 28, 2023, 04:35:17 PM »
Just open scene, hit render and no problem...
However, 3ds max reported some script errores. Plus I suppose "skylight" is not good to use. Try the classic V-ray setup. So maybe the render is changing some script that isn't running because I don't have it. The script error appeared during the render as well. I'm a bit worried if you have some rogue scripts from "china" (not only china!) that basically malware 3ds max.