transparency of realcloth 3D cable

Help and Troubleshooting
1

help, cable render not transparant. transparant box unchecked.

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2

I’m not sure I understand…
if your talking about the background, in render setting export as a PSD or PNG, not JPEG.

3

Zoom in on the cable, there are white spics. When I place a black / white bg behind the picture the color changes so it is transparent. yet placing a black object behind it doesn’t solve it completely.

4

how is the cable modeled? there are spaces and gaps inthe weave I see what you are talking about. You may need to place geometry inside the wrap, depending on how its modeled you can sweep a circle down the path and make the “wire” just smaller than the weave tube.

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5

It would help to have more information. It seems like you’re using the physical geometry/displacement option for the RealCloth material? If so, the transparent parts will appear because it’s actually generating geometry. I would try duplicating the cable and scaling it down .999 and set it to a diffuse black material and see if that works. That way you don’t need to leave KeyShot to solve this I think.

6

Scaling down a curved cable won’t give the result you want I’m afraid.

7

yeah. the scaling needs to be just on the diameter, if you scale the entire thing depending on hte camera placement you might see it. worth the 10 seconds to try though, never know :slight_smile: Its a band aid solution for sure.

8

You can use a vertex Color white, plug this node to displacement and use a negative displace value. Then the wire gets smaller in diameter. But you have to tweak the triangle size to avoid getting to much polygons.
Displacement with pure white can be used to offset the shape. But it doesn’t work well with sharp edges

9

Hi,

If you have access to a cad software, you can make a new tube a bit smaller using the same cable curve or offset a bit the cable surfaces inside. It should be the best result I guess.

10

It can… depending on the shape of the cable, but you’re right, there’s a chance it’ll move too much to the center of the object. But yeah, as Marco said, you could easily duplicate the cable and use displacement (I’d use a color to number node, but same outcome) to displace ‘inward’, effectively reducing the diameter.

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