Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] Bug Reporting => [Max] Resolved Bugs => Topic started by: StephenMF on 2015-05-29, 13:45:24

Title: Geometry motion blur destroys mesh
Post by: StephenMF on 2015-05-29, 13:45:24

The geometry motion blur destroys my mesh very badly. please have a look at my image.

What can this be?
I have adjusted the frame offset value to 1 and that fixed, but only in the very last frame of the animation.

Hope there is a solution out there.


Stephen

Title: Re: Geometry motion blur destroys mesh
Post by: maru on 2015-05-29, 14:10:52

I couldn't recreate but maybe I don' know how. Can you provide more details? Or a scene where this happens (could be different)? How is this model made? Bones/skin/morph used? How is it textured? Which version of Corona is this?

Title: Re: Geometry motion blur destroys mesh
Post by: Ondra on 2015-05-30, 01:07:22

It could be a bug. Can you post the scene?

Title: Re: Geometry motion blur destroys mesh
Post by: StephenMF on 2015-06-01, 11:13:04

I think I found what creates the error.
The object has a CoronaLightMtl where "Emit Light" is unchecked.

If I give the object a CoronaMTL and sets the self illumination multiplayer to 1 and add the texture to that channel, the motion blur renders correct.

Makes sense?

I will not upload a file here in public, but i will open a support ticket so this problem can be looked in to.

OK?

Stephen

Title: Re: Geometry motion blur destroys mesh
Post by: Ludvik Koutny on 2015-06-01, 11:18:18

Hi, this is good to know. But could you still send us at least isolated part of the scene so we can fix it? MB should work fine even with LightMTL that has disabled emission. If it doesn't, then it's a bug we would like to fix.

You can pack up the scene and send it here: https://corona-renderer.com/upload/

Title: Re: Geometry motion blur destroys mesh
Post by: StephenMF on 2015-06-01, 11:53:42

File uploaded.
1433152228_S_003_Emerge.zip.
Go to frame 90 and use camera005.

Roger?
Stephen

Title: Re: Geometry motion blur destroys mesh
Post by: Ondra on 2015-06-01, 14:14:02

thanks, will look later
o.

Title: Re: Geometry motion blur destroys mesh
Post by: maru on 2015-06-02, 13:36:26

Recreated. Looks like this only happens if there is some deformation going on. It doesn't happen when rotating/moving/scaling (I think so). Corona mtl with self illumination fixes it. Here is an example:

Title: Re: Geometry motion blur destroys mesh
Post by: Ondra on 2015-06-02, 14:35:22

Quote from: maru on 2015-06-02, 13:36:26

Recreated. Looks like this only happens if there is some deformation going on. It doesn't happen when rotating/moving/scaling (I think so). Corona mtl with self illumination fixes it. Here is an example:

scene! ;)
thx

Title: Re: Geometry motion blur destroys mesh
Post by: maru on 2015-06-02, 14:48:47

uhh sorry, here it is

Title: Re: Geometry motion blur destroys mesh
Post by: Ludvik Koutny on 2015-06-10, 11:47:07

Logged on mantis: https://corona-renderer.com/bugs/view.php?id=1086

Archiving to resolved.

Title: Re: Geometry motion blur destroys mesh
Post by: Ondra on 2015-06-14, 23:23:46

fixed