-
32 bit comp produces artifacts
Working in float (32 bit).All 32 bit effects.
Shot needed to have some paint work done. Just clone stamped a couple hundred frames.
The paint is being track and than motion blur is being applied to the patches. However in 32 bit float all my paint work has black artifacts littering the shot. Looks like there is tearing going on and artifacting where ever I have painted.
Rendering in 16 bit produces clean renders but I can’t just clamp this shot?
Anyone have this happen or know a work around? I am doing frame by frame paint work around 400 strokes. First time I have had this artifacting happen? It is coming from the comp motion blur. Shoudl I just hand blur it? Maybe some advice or work arounds from anyone comping in float.
Thanks
-
13 Replies
-
prerender elements, or don’t use 16bit effects, or use utility hdr compander.
https://livedocs.adobe.com/en_US/AfterEffects/8.0/help.html?content=WSA666F80A-CCC4-488d-938D-5963ADEAB382.htmlhttps://technicolorsoftware.hostzi.com/
-
1) Unfortunately if a render has artifacts than a pre render will have artifacts. MB is tearing the render. So a pre render is not going to work if rendering in general does not work. This is a simple comp, no plug ins, just paint work. No heavy precomps, just few layers, few freeze frames tracked and than motion blured. It is producing tears or artifacts, like dead pixels.
2) No 16 bit or 8 bit effects are being used only 32 bit effects.
3)I too thought hrd compander was the ticket however since this is Motion blur tearing up and creating artifacts, no luck.
I guess I will have to take off the Motion Blur and just hand blur this thing.
If anyone who uses float on a weekly basis has run into this issue please let me know if you too have experience this.
-
[Anthony Dupsta] “I guess I will have to take off the Motion Blur and just hand blur this thing.”
Not a direct solution to your problem, but ReelSmart Motion Blur might save you quite a bit of work.
Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog – What I’m thinking when my workstation’s thinking
Creative Cow Forum Host: Live & Stage Events -
does it tear in AE or just when you render? try a Tiff sequence bit depth trillions. maybe a 8 bit rendering out is your problem.
https://technicolorsoftware.hostzi.com/
-
Real smart is pixel based right? The paint patches I have are tracking with the live action plate. When these paint patches translate AE should create motion blur. However in 32bit I get what looks like dead pixels and artifacts. When I turn off the motion blur in 32bit No artifacts.
Real smart is pixel based and I am not sure will create motion blur from my translating paint patches. I could apply the Real smart globally however that might compound the existing motion blur from the live action plate. I might try using a FG matte with Real Smart and isolate just where I want Real smart to look?
OK I will see what I come up with.
But more important, AE is tearing and breaking in 32bit when motion blur is applied to paint strokes being tracked onto a plate.Thanks for the suggestion.
-
[Anthony Dupsta] “Real smart is pixel based and I am not sure will create motion blur from my translating paint patches. I could apply the Real smart globally however that might compound the existing motion blur from the live action plate. I might try using a FG matte with Real Smart and isolate just where I want Real smart to look?”
Yes, RSMB is pixel-based — but if your plate and patches are on separate layers, it can track motion from your plate and apply the blur to the patches.
Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog – What I’m thinking when my workstation’s thinking
Creative Cow Forum Host: Live & Stage Events -
“does it tear in AE or just when you render”
Both. I can see the artifacts in the render and when I preview everything in full.No Tiffs. rendering in 8 bit is completely out of the question. I could try to sneak a 16bit render through the pipeline but I see where it is clamping my highs. So I will try other motion blur techniques before getting desperate with 16bit.
-
where’s Tod, that seems like a bug to me…
also, you can drop in levels-individual controls on the comp, then set clipping 32bpc to on, that way it leaves the other comps still zipping along in 32bpc.
https://technicolorsoftware.hostzi.com/
-
So as I have to deliver today, sometimes crude gets it done. However this is not a fix but this worked:
I would find the frame that has artifacts on it.
I was do a “save frame as” re render just that frame. Sometimes the artifact would be else where and sometimes I would get a clean frame to render. So I went through and re rendered each bad frame sometimes once, and sometimes three times. I finally got a clean sequence.
However if I need to make a change and re render the entire sequence I am hosed as I can not baby sit each frame being rendered.
This is no a fix just some silly work around that got it out the door.
I had to do this because when I turned off the motion blur some frames still had the tearing, so I can isolate this to paint strokes and float. They are not playing nice. -
“levels-individual controls on the comp, then set clipping 32bpc to on”
Hey Chris,
On a side note: About clamping certain layers.
It is always nice to hear of a diff strategy in how to clamp.
I am curious if this is the same as just using a compress and expand expression? Both are only clamping a specified node and not compromising the entire comp.
I suppose I could do it either way? Or is there a difference I should be aware of?
Reply to this Discussion! Login or Sign Up