Subsurf rendering problems in 2.28

Blender's renderer and external renderer export

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malefico
Posts: 159
Joined: Mon Oct 14, 2002 6:51 am

Subsurf rendering problems in 2.28

Postby malefico » Wed Aug 27, 2003 12:25 am

Hi guys.

When rendering a mesh with subsurf activated a random number of black cells appear. It looks as if a mesh were superimposed to the subsurfed with its normals inverted, so you can see it here and there as a black wireframe.

It can be solved sometimes by increasing the level of subsurf or (obviously) by switching off the subsurf at all. (Or switching to 2.27 :wink: )

I've heard of other people at the hispanic community at nicodigital having the same problem, both linux and windows.

Any other suffering soul here ?

(I'll upload a screenshot soon).

Cheers.

malefico.

dreamsgate
Posts: 126
Joined: Thu Oct 17, 2002 10:47 pm

Postby dreamsgate » Wed Aug 27, 2003 4:12 am

Actually my last pic did that too, only my subsurf object had a white frame on it, it looked cool so I was only mildly annoyed at the time.

harkyman
Posts: 278
Joined: Fri Oct 18, 2002 2:47 pm
Location: Pennsylvania, USA
Contact:

Postby harkyman » Wed Aug 27, 2003 1:23 pm

I'm experiencing the same thing. Upping the subsurf level by 1 seems to clear it up, but I'd rather not have to do that. What gives?

alltaken
Posts: 127
Joined: Mon Oct 14, 2002 7:08 am

Postby alltaken » Sat Aug 30, 2003 2:55 pm

i belive its caused by face normals being different between two faces

therefore subsurf is soomthing thr colour between the wrong side of the faces.

i have never been able to overcome this issue really, its very annoying, i think that changing the face normals of the original mesh to face all the same way e.g. inwards/outwards then it should render fine.


Alltaken

malefico
Posts: 159
Joined: Mon Oct 14, 2002 6:51 am

Postby malefico » Mon Sep 01, 2003 4:07 am

i belive its caused by face normals being different between two faces


mmmm I don't think so. It doesn't happen with 2.27 (and previous) (same file) plus it's a very simple model to have normal crazyness (a cube actually ! :D ).

Cheers.


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