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Transparency issues in 3D animation
Hi everyone
got a strange issue here while creating an 3D animation in AE 6.5 Pro bundle(german version).
The object consist of various AI files for the blueprint like graphics and some colored and masked layers to colorize the blueprints and to illustrate some 3 dimensional depth and stuff.Firts thing I noticed in a preview is a flickering in the transparency( see upper part linked picture). Both samples are frames right next to each other – #0059 and #0060)., second one is the transparency of the black line element, which is actually in front of the grey part, but is treated like laying behind.(lower part of linked picture)
I also have an error warning when switching to the top view which I can’t explain
‘After Effects Fehler: Suggested scale is invalid (zero?)(26
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4 Replies
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Looks like the Z-sorting is skewed. How far apart are your elements? Even the Advanced 3D renderer will give you wrong results, if you’re layers are to close to one another. Try to scale your stuff up and work in larger dimensions if that’s not already the case. The error means that AE cannot allocate any pixels to your layer and thus is unable to calculate a bounding box. Can happen if your layers are large and perfectly perpendicular to world space.
Mylenium
[Pour Myl
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thx for reply
I tried various sizes and it was always the same error. I need to line up perpendicular at least when I set up the scene, later on it is OK to rotate. Strange thing is that I don’t have this error in the same project on a dffernt comp creating similiar stuff using bitmaps. I wprefer to stick with the *.ai files since I can scale them without aliasing problems.
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have you changed the blend modes? What happens if you change the background color? your lines look scaringly thin.
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I used a normal blend mode. The thickness of the lines is not the problem. nayway, I converted them into bitmaps in PS the error didn’t appear again, but I stil have those transpaernce issues. I switched the blue parts to a multply blending mode, but I’m not satisfied with the result, so I’m trying to mask/matte the parts out vie a travelling matte layer.
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