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Strange Outline
show user profile  Justin101
Hi all,

When I render out an image as a PNG or TGA file, there is a thin white outline around the object.
Below is a close up of a roof gutter that I have saved as a PNG and placed over a blue flat colour.
As you can see, there is always a thin white outline surrounding the edge of the object.

It is not too difficult to photoshop out, but I was wondering if anyone knows of a setting in 3ds max that instantly gets rid of this white outline. Any thoughts would be much appreciated.


 photo outline.jpg
read 376 times
2/17/2017 1:54:39 PM (last edit: 2/17/2017 1:55:56 PM)
show user profile  STRAT
looks like its a mask during render time. switch this option off in the PNG/TGA save settings in max


read 364 times
2/17/2017 2:40:17 PM (last edit: 2/17/2017 2:40:17 PM)
show user profile  9krausec
are you rendering on white? Are you using straight or a pre-multiplied alpha? Try adjusting you mask settings. Try rendering out openEXR instead of PNG/TGA.

- Portfolio-

read 332 times
2/18/2017 6:56:57 PM (last edit: 2/18/2017 6:56:57 PM)
show user profile  Error404
yea, looks like you're probably rendering over a white or a light background. If you're going to be placing something behind the building (like the blue color you have), you'll want to render over black. -

read 325 times
2/18/2017 11:00:32 PM (last edit: 2/18/2017 11:00:32 PM)
show user profile  Justin101
Excellent advice people.
I was rendering over a very white background.
Under environment and effects I had the "use map" ticked and the background HDRI map I was
using was very white. I unticked the "use map" and set the background colour to black and now the white outline is completely gone.

Thanks guys/girls.
read 291 times
2/22/2017 2:27:10 PM (last edit: 2/22/2017 2:27:10 PM)
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