YOUR ACCOUNT

Home > Forums > Bugs and Problems (Windows) > 

Serious Motion Blur Bug

Active Topics Search
Login or Register to post new topics or replies
uberzev
not lyftzev

Posts: 1890
Filters: 36
If the 'Directional' slider of the Motion Blur component is set to 100 it produces artifacts (noticeable when compared to source image). In this example the artifacts appear as horizontal bands due to the blur angle being horizontal:



This happens in both Gaussian and regular mode.



In the mean time the workaround is to set the 'Directional' slider to 99.999999. This however introduces other major problems (although they are not reflected in the example).

Motion Blur Bug.ffxml
Posted: April 10, 2009 9:45 am   Details E-Mail
Sphinx.
Filter Optimizer

Posts: 1750
Filters: 39
Hey Uber,

I reported an offset bug in the motion blur some time ago (see here), maybe that bug is what is causing the artifacts you see here?

Actually the bug allows you to find the width of a pixel in the source image (see here)

Njyldgarkn init/prepare process x no. of render blocks x no. of passes
Posted: April 13, 2009 3:31 am   Details E-Mail
uberzev
not lyftzev

Posts: 1890
Filters: 36
Quote
Sphinx. wrote:
I reported an offset bug in the motion blur some time ago (see here), maybe that bug is what is causing the artifacts you see here?
Yeah, looks like the same bug.
Posted: April 13, 2009 6:13 am   Details E-Mail
ThreeDee
Lost in Space

Posts: 1672
Filters: 112
The plus side of this bug is that it allows you to reverse engineer the size of the original image and create pixel-size based effects.
Posted: April 14, 2009 2:36 am   Details E-Mail
Sphinx.
Filter Optimizer

Posts: 1750
Filters: 39
Quote
ThreeDee wrote:
The plus side of this bug is that it allows you to reverse engineer the size of the original image and create pixel-size based effects.


Exactly, but ideally it would be better to have a set of image property components (like average color, min and max) that gives you these constants, and then get the offset bug fixed in the motion blur.
Njyldgarkn init/prepare process x no. of render blocks x no. of passes
Posted: April 14, 2009 3:25 am   Details E-Mail
GMM
Moderator
Filter Forge, Inc
Posts: 3491
We're aware of the issue. However, don't expect it to be fixed soon (Vladimir may be able to give a more precise estimate). Try to find some positive effects in it, as ThreeDee did smile;)
Posted: April 14, 2009 5:34 am   Details E-Mail

Join Our Community!

Filter Forge has a thriving, vibrant, knowledgeable user community. Feel free to join us and have fun!

33,720 Registered Users
+9 new in 7 days!

153,546 Posts
+6 new last day!

15,348 Topics
+71 new in year!

Create an Account

Online Users Last minute:

27 unregistered users.

Recent Forum Posts:

Join our Forum Join our Forum
Over 30 000 members!
Join us on Facebook Join us on Facebook
Over 42 000 likes!
Follow us on Twitter Follow us on Twitter
Get updates quickly!
Follow us on Instagram Follow us on Instagram
Tag us #filterforge