Layers of opacity cause wireframes

[Peter M. Gruhn]

Model was going great. Did some more work. Looking great. I'm going to finish a project before Max catches on. Nope. I never do. (How do professionals get anything done with this thing? I can't even do toy projects.) Anyway...

 

I have a number of planes stacked up. Alternating "trace" and "paint". They are illustrating the metaphor of Photoshop layers. See oblique perspective.

 

With the camera looking down the stack triangle edges start showing up. They vary as the camera moves in and out and rotates off vertical. I think I've seen this before. And didn't figure a solution.

 

Come to think of it, the variation is not consistent with the idea that it's triangle edges. Except at frame 0 it's spot on.

 

Materials are standard with opacity. The paint layers are doing opacity through png alpha. The trace is doing it through hard set opacity.

 

Problem shows even if the trace it 0 opaque.

 

Problem was not there earlier in project. It appeared after I spent some time working on the paint brush.

 

I'd like a solution. Work arounds are OK. I tried using a raytrace material. Wicked slow. I think next I'll try Mental. I don't need it. I wanted the scanline speed.

 

No lights.

 

I try a quick new scene with similar... no problem.

[dean@pikcells]

try using an orthographic camera for the top down views as it will eradicate the perspective allowing you to see the grey edges. other than that I dont really understand your problem. are you wanting to get rid of the greyness (in perspective) so you can see straight through layers?

[Peter M. Gruhn]

I'm doing it in Mental. Took some tweaking to get my fine lines showing up, but I finally got that sussed. Render times are actually pretty good. (OK, I came down this morning and it was on frame 74, but really, it's only just these first few seconds at the beginning and end that will be bad. Promise.)

[Peter M. Gruhn]

> other than that I dont really understand your problem

 

See the white lines in the blue? They aren't supposed to be there.