Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] I need help! => Topic started by: Jpjapers on 2018-09-13, 16:19:21

Title: Motion blur problems
Post by: Jpjapers on 2018-09-13, 16:19:21
I have an object moving 300mm from still in 2 frames and for whatever reason motion blur does absolutely nothing even at 1/1 shutter speed.
Any ideas whats going on? Its the water. I have it set up as a thin glass material.
Title: Re: Motion blur problems
Post by: pokoy on 2018-09-13, 16:37:29
Corona doesn't support motion blur with changing topology afaik, if vertex number and order is changing between the 2 frames then that's the reason probably.
Title: Re: Motion blur problems
Post by: Jpjapers on 2018-09-13, 16:39:37
Corona doesn't support motion blur with changing topology afaik, if vertex number and order is changing between the 2 frames then that's the reason probably.

Nope im literally moving the entire object its not animated in the sense of a liquid sim.
Title: Re: Motion blur problems
Post by: romullus on 2018-09-13, 17:00:06
Make sure that your animation starts at least one frame before you render and stops at least one frame after. So if you render at frame 0, animation should start at -1 and end at 1 frames.
Title: Re: Motion blur problems
Post by: Jpjapers on 2018-09-13, 17:01:57
Make sure that your animation starts at least one frame before you render and stops at least one frame after. So if you render at frame 0, animation should start at -1 and end at 1 frames.

Im rendering frame 2 and the motion starts at frame 0
Title: Re: Motion blur problems
Post by: romullus on 2018-09-13, 17:14:54
Did you turn on motion blur for both camera and geometry? Did you check if it works on other objects?
Title: Re: Motion blur problems
Post by: Jpjapers on 2018-09-13, 17:17:42
Did you turn on motion blur for both camera and geometry? Did you check if it works on other objects?

Just for geometry as the camera isnt moving. I havent checked on other objects good idea!
Title: Re: Motion blur problems
Post by: Njen on 2018-09-13, 21:51:07
Just a note, when I am using a Max physical camera, the motion blur checkbox in the render settings does nothing. I have to make sure the motion blur check is turned on explicitly on the camera, then it works fine.
Title: Re: Motion blur problems
Post by: Jpjapers on 2018-09-13, 23:37:49
Just a note, when I am using a Max physical camera, the motion blur checkbox in the render settings does nothing. I have to make sure the motion blur check is turned on explicitly on the camera, then it works fine.

Im using a corona camera and i have it checked :/
Title: Re: Motion blur problems
Post by: pokoy on 2018-09-14, 10:56:16
Is this a pflow object? I'm not sure but I think you have to enable object mblur in the pflow event... it was the case for other renderers, not sure how Corona handles that.
Title: Re: Motion blur problems
Post by: Jpjapers on 2018-09-14, 12:36:30
Is this a pflow object? I'm not sure but I think you have to enable object mblur in the pflow event... it was the case for other renderers, not sure how Corona handles that.

Nope its geometry. Standard editable poly.
Title: Re: Motion blur problems
Post by: maru on 2018-09-14, 17:16:58
Can you share the scene with us? https://corona-renderer.com/upload
Title: Re: Motion blur problems
Post by: Jpjapers on 2018-09-14, 22:15:24
Can you share the scene with us? https://corona-renderer.com/upload

Itll be next week but sure
Title: Re: Motion blur problems
Post by: maru on 2018-09-17, 15:59:54
Ok, let us know when it's there.
Title: Re: Motion blur problems
Post by: Jpjapers on 2018-09-18, 10:27:15
Ok, let us know when it's there.
Am i ok to delete the rest of the geometry in the file?
They are engineering cad models for manufacture and are insanely heavy and they crank up the filesize to a few gb
Title: Re: Motion blur problems
Post by: maru on 2018-09-18, 12:47:01
Yes, sure you can optimize the scene as much as possible, that's actually welcome, but make sure the problem persists in that optimized scene.
Title: Re: Motion blur problems
Post by: Jpjapers on 2018-09-18, 14:17:08
Yes, sure you can optimize the scene as much as possible, that's actually welcome, but make sure the problem persists in that optimized scene.

Ok cool ill see what happens