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Stroke width smaller on backside of shape layer in ray-traced 3D

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samuel howeStroke width smaller on backside of shape layer in ray-traced 3D
by on Aug 30, 2016 at 4:16:45 pm

Why is the stroke width smaller on the backside of 3D shape layer? This only happens when using ray-traced 3D; using Classic 3D, the stroke is the same on both sides. My end goal is to have an extruded shape with a stroke (that is the same on both sides), but this doesn't seem possible! Anyone have an idea?

example: stroke1.gif


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Walter SoykaRe: Stroke width smaller on backside of shape layer in ray-traced 3D
by on Aug 30, 2016 at 5:17:46 pm

That's interesting.

Paths are stroked on the center in Ae; half of the stroke is inside the fille, and half of the stroke is outside the fill. What you see when you look at the back is the the half of the stroke that extends beyond the fill.

I'd separate the stroke from the fill and extrude them both separately. Extruding the stroke just a fraction more than the fill (or more, if the style suits) should get you the look you're going for.

Walter Soyka
Designer & Mad Scientist at Keen Live [link]
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
@keenlive [twitter]   |   RenderBreak [blog]   |   Profile [LinkedIn]


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Samuel HoweRe: Stroke width smaller on backside of shape layer in ray-traced 3D
by on Aug 30, 2016 at 5:31:25 pm

Ah, thanks, Walter!

So the stroke is only applied to the front of a shape fill, with only the outer half of the stroke viewable from back. Do you know why that is? Is it possible to apply a stroke to the backside of a shape? Do you know why this only happens in ray-traced 3D? Just curious!


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Walter SoykaRe: Stroke width smaller on backside of shape layer in ray-traced 3D
by on Aug 30, 2016 at 6:35:43 pm

The ray-tracing renderer is a whole different system than the classic 3D renderer. This could well be a bug. I just think the reason it happens is because the stroke is being drawn over the fill.

As another workaround, you could always duplicate the shape, turn it around, and position it right behind the other shape.

Walter Soyka
Designer & Mad Scientist at Keen Live [link]
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
@keenlive [twitter]   |   RenderBreak [blog]   |   Profile [LinkedIn]


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Samuel HoweRe: Stroke width smaller on backside of shape layer in ray-traced 3D
by on Aug 30, 2016 at 6:39:59 pm

Got it. Thanks a ton for your feedback!


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