I’m trying to create a custom alpha from a sculpted plane using GrabDoc. I’ve followed multiple tutorials on this to the letter.
For some reason though, it keeps capturing the unsculpted base of the plane in the alpha as well, creating a gray, raised background in the alpha.
How do I fix this? It doesn’t happen in any tutorials I’ve seen, so I’ve had no luck figuring out how to fix it.
Can post an image? I’m not sure what result you’re getting.
It’s not hard to describe. To create an alpha from a sculpt, you normally just draw out a flat plane, sculpt on it, then go into Alpha and hit GrabDoc.
This will create a new Alpha from the sculpted details on the plane.
In my case, it keeps grabbing the ENTIRE plane, not just the sculpted bits. As a result, the background of the Alpha is solid gray instead of being clear.
So when I try to actually use the Alpha on a brush, it pulls out a raised square around the details.
For example, right now I’m trying to create a tuft of fur. When I use it on a mesh I get the fur detail surrounded by a raised square.
I assume this would normally happen if the plane were not fully encompassing the viewport, but this is not the case. I have every edge of the plane clipping out of view as it should.
-Edit-
I have an image now;
Attachments
Ah, thanks for the picture - it makes all the difference. What I think you have done is deformed the plane inwards as well as outwards. In order to capture the inwards displacement, GrabDoc is capturing the whole plane. You can solve it like this:
- Turn off Edit and clear the canvas (Ctrl+ N).
- Fill the canvas (Ctrl + F).
- Draw your plane on the canvas, holding Shift to constrain.
- Turn on Edit, then Alt+drag outside the canvas to position your model.
- Use GrabDoc to capture an alpha.
Filling the canvas creates a layer of pixols at 0 z-depth. This effectively masks those areas of your plane that are displaced inwards.
HTH,