Go Back   Foundation 3D Forums > Techniques, Instruction > 3D
Register FAQ Members List Calendar Mark Forums Read

3D Tutorials and your questions on your particular 3D application. Or post questions for general 3D help.

Reply
 
Thread Tools Display Modes
Old 7th Dec 2019, 08:35 PM   #1
Professor Moriarty
Registered Member
 
Professor Moriarty's Avatar
 Gallery
Blender Houdini LightWave Photoshop After Effects Digital Fusion Premiere
 
Join Date: Dec 2007
Location: System L-374
Posts: 833
Default After Effects - Gaps in light streaks when using the Echo plugin

I'm attempting to replicate the Star Trek: The Motion Picture warp jump effect using the Echo plugin in After Effects to smear the light streaks. I have a separate copy of my starship model that is nothing but the lights (so that the metal/opaque parts of the ship don't obscure them), and I'm compositing the lights layer on top of the "regular" model in After Effects. The lights layer is being blurred with the Echo plugin, but no matter what settings I try I just can't quite get the "gaps" between each echo to close up and create nice continuous streaks of light:



I'm sensing that there is an upper limit to how much the Echo plugin is able to smear a single frame, which would explain why I can't make each of those segments just a little bit longer so they all merge together. (I think the only reason they look merged together towards the beginning of the effect--look at the lower right corner--is because the ship is further away and the angle relative to the camera makes them appear to be merged.)

Before I go to the trouble of re-rendering the 50 or so frames that comprise the shot at a higher framerate (so that I have more frames to blur together), I was wondering if anyone had any suggestions for other ways I could attack this problem...? Thanks!
__________________
My crappy blog
Professor Moriarty is offline   Reply With Quote
Old 7th Dec 2019, 09:16 PM   #2
Professor Moriarty
Registered Member
 
Professor Moriarty's Avatar
 Gallery
Blender Houdini LightWave Photoshop After Effects Digital Fusion Premiere
 
Join Date: Dec 2007
Location: System L-374
Posts: 833
Default

Answered my own question. One of the ingredients I'm missing is an After Effects plugin that no longer exists: Time Blend (it was removed in CC 2015 because it wasn't compatible with the new AE architecture). Time Blend does what I need: it fills in the gaps between frames.

The makers of Time Blend (it was a third-party plugin) posted a "workaround" on their site so I'm going to give that a shot before I resort to rendering a hella lot of frames to close the segments.
__________________
My crappy blog
Professor Moriarty is offline   Reply With Quote
Old 18th Dec 2019, 12:14 AM   #3
Professor Moriarty
Registered Member
 
Professor Moriarty's Avatar
 Gallery
Blender Houdini LightWave Photoshop After Effects Digital Fusion Premiere
 
Join Date: Dec 2007
Location: System L-374
Posts: 833
Default

Actually... no. After even more experimentation (and also, frankly, RTFM for After Effects) I've gotten good results with Echo + pixel motion frame blending (which is built into After Effects) + 100% motion blurring when rendering the light emitter frames in OctaneRender. Once I've finished the animation I may write up a tutorial on how I accomplished the effect, if I think the results are tutorial-worthy
__________________
My crappy blog
Professor Moriarty is offline   Reply With Quote
Old 18th Dec 2019, 08:10 PM   #4
David cgc
Premiere Member
 
David cgc's Avatar
 Gallery
LightWave Maya Illustrator Photoshop After Effects Shake Premiere
 
Join Date: Nov 2007
Location: California
Posts: 892
Default

Quote:
Originally Posted by Professor Moriarty View Post
...100% motion blurring when rendering the light emitter frames in OctaneRender...
That was going to be my guess for the problem. I've done the TMP warp effect as a still, but I've never tried adapting my technique for an animation.
David cgc is offline   Reply With Quote
Old 21st Dec 2019, 09:24 PM   #5
Professor Moriarty
Registered Member
 
Professor Moriarty's Avatar
 Gallery
Blender Houdini LightWave Photoshop After Effects Digital Fusion Premiere
 
Join Date: Dec 2007
Location: System L-374
Posts: 833
Default

I’ll open this up for a quick peek but I’m trying to keep this under wraps until the entire video is ready. This is how it turned out:

https://vimeo.com/380593789
__________________
My crappy blog
Professor Moriarty is offline   Reply With Quote
Old 22nd Dec 2019, 05:25 AM   #6
Tony Gardner
Premiere Member
 
Tony Gardner's Avatar
 Gallery
LightWave Gimp
 
Join Date: Nov 2007
Location: Bristol, UK
Posts: 3,172
Default

Looking good
__________________
"Well my days of not taking you seriously are certainly coming to a... middle"
Tony Gardner is offline   Reply With Quote
Old 22nd Dec 2019, 05:08 PM   #7
Professor Moriarty
Registered Member
 
Professor Moriarty's Avatar
 Gallery
Blender Houdini LightWave Photoshop After Effects Digital Fusion Premiere
 
Join Date: Dec 2007
Location: System L-374
Posts: 833
Default

Thanks. Still a lot to do... I don’t like the entry/exit flashes and I have some volumetric effects I want to add for the debris cloud surrounding planet IV. But the exit from warp itself, yeah, that’s pretty much what I was going for. I went through a LOT of trial-and-error on that thing to get the look I wanted, which even with GPU rendering took several attempts to perfect. I can’t even imagine trying to prototype something like this with CPU rendering.
__________________
My crappy blog
Professor Moriarty is offline   Reply With Quote
Old 23rd Dec 2019, 07:29 AM   #8
bmckain
Wire Junkie
 
bmckain's Avatar
 Gallery
Bryce LightWave Poser Vue Photoshop
 
Join Date: Jun 2006
Location: Boise, ID. USA
Posts: 18,451
Default

Yeppers, well done. I can appreciate the stick to it ness to get it done to your liking. That's a rare quality.
__________________
The one thing you need to get past is simply the way you think. - William Vaughan
My Photography / My 3D Work
bmckain is offline   Reply With Quote

Go Back   Foundation 3D Forums > Techniques, Instruction > 3D
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 10:18 PM.


2006 - 2013 Foundation 3D