"Sparkly" outline in renders....whats going on??
thegreaticeman
Posts: 17
Hi guys and galls.... Ok this Im sure is a very easy one for you to answer...tho I dont have a clue myself as to what is causing it!
When rendering an animation I found this......
As you can see, all around the image there is a line which sparkles as the image moves. If I render out a still picture I get this.....
Nice and clean.
Now, I know that there are ways to render out an animation in single pictures and then string the pictures together to make an animation....and thats ok....BUT I dont want to do it like that. I want to save it out as a movie to start with.
So any idea as to why its causing this sparkle when saving an animation, and if so how can I get rid of it??
The animation uses default everything.... I have not messed with anything at all. It has a trans background and thats it...
Any help would be appreciated.
Thx
Shane.
Daz 3D is part of 
Connect
DAZ Productions, Inc.
7533 S Center View Ct #4664
West Jordan, UT 84084
Licensing Agreement | Terms of Service | Privacy Policy | EULA
© 2024 Daz Productions Inc. All Rights Reserved.
Comments
Iray or 3dl? My guess, and that is all it is, is that it might clear up if you change the background color to middle gray. I know that use to help with transparent backgrounds in 3dl.
Hi Khory.... It using 3dl....just the one that comes with DS. I have noted that if I change the background colour then yes...it does get rid of it. But heres the problem......
Im rendering out an animation that I will then composit into a backgroud. Im doing that way as loading a background with the model ups the render time. If I were (for example) to render it against a green background (for easy greenscreen comp shot) it works fine...not sparkle....but then when I take the green away because of the anti-aliasing of DS, then finished composit looks bad.
So even if I want to change the bacground colour I cant....it has to be trans.
Either that or I give in and add background images and put up with longer animation render times.
(Tho I still have no clue as to why its making the outline and sparkles!!)
It looks like 'ringing' to me and that's usually either the pixel filter or over driving the lights...or a combination of both.
What are your render settings and light setup?
As I said...all default. I have not changed anything at all. I just loaded in the model and that is it.
I didn't say to add a back ground. Simply change the background color to middle gray. Go to environment. Type background and then for background change the color to middle gray. You can still do a png transparent render but the sprites should be gone.
Screen shot of the render settings...
Why don't you want to render to an image sequence? It's much more robust, you can render frames in batches as your machine is free, you can fix and rerender any problem areas without having to rerender the whole thing, and you can get a clean alpha channel if you save to png or tiff.
Ok....I did understand what you said, and as I said before... "I have noted that if I change the background colour then yes...it does get rid of it. But heres the problem......
Im rendering out an animation that I will then composit into a backgroud. Im doing that way as loading a background with the model ups the render time. If I were (for example) to render it against a green background (for easy greenscreen comp shot) it works fine...not sparkle....but then when I take the green away because of the anti-aliasing of DS, then finished composit looks bad."
However...You have also said "You can still do a png transparent render".... How??? If I save it as single images, then yes I can save it as png...but Im saving this a a movie. If im missing something there, please tell me as it would be good to know how to save a movie in png.
Give me a min and I will upload that for you MJC.
Yes I know. There are things that are better than rendering a movie...I agree. But in this case I cant do that as its extra messing about and the animation has to be passed on for effects to do done and grading too... If it was up to me I would use single pics...but its not up to me....:(
Sadly that is the only way I know to get rid of those halos.
Heres the screen grabs of the settings for you MJC
If it's being passed on for grading and effects, why is gamma off?
And if this is just the headlamp, with the shading rate of 1 and the glossiness of the item, ringing is a very likely.
Or if you can live with a little loss of detail, try one of the other filter settings...gaussian would be one to check out.
Thank you for that MJC.... As I said, this is the default when I boot it up, I changed nothing. Glad that you point a few things out, lkike the gamma. I will have a quick mess about with what you say in DS and will post if it helps or not.
Thanks. :-)
If it's to be composited then you really need the alpha channel, so rendering to an image sequence as png of tiff is pretty much obligatory.
Ok... I still cant sort out the animation....which is a shame. However, as I said before to Richard, if it was up to me I would use single frame. So I have told em that the only way to do it is with single frame...and they are gonna have to string em together. :-)
Thanks for all the input guys... still its a shame that I will never know why the animation produces the sparkle. But hey....my job is to animate it, so thats what I will be doing...just in single pic format ;_)