Glass have sqaures?! weird

[glass.use]

i saw this problem and i ignored it at 1.03 but still on 1.04 and im suffering of it
it happen with cube shape, if i made it very slim but plane is ok
i tried Stefan glass materials and i made my own and still.. look picture will explain
http://www.j1jj.com/uploads/f2897ab128.jpg


thanks

[glass.use]

i happens when i make a cube and make the both sides touch each others to be like plane, but its ok i think when you make it high a bit it will work fine

[Cristian Tumiati]

could you post the scene....please.

Best

Cristian.

[stefan]

looks like some bad overlapping polys.
you could repait geometry or try to set the secondary ray bias(under option tab) to 0.1 instaed of 0

cheers
stefan

[glass.use]

here you go,

http://rapidshare.com/files/59739123/sb.c4d.html

[MrBraun]

I have seen your file: try to use a cube with Y=1 cm or a plane!

The two faces of the cube one intersect the other! ;)

[Walli]

i happens when i make a cube and make the both sides touch each others to be like plane
didn´t test it, but I am not surprised. This is a bad thing in almost every render software I know.

When you need it flat, why not use a plane object instead?

best,
Walli

[hiro]

i opend the scene, and yes its true what mr. brown and the other guys said: you have to give the cube some thickness in y direction!
then everything is fine!

[MrBraun]

this is the result! :)

http://www.computergrafica3d.com/utenti/mrbraun/pp.jpg

[Cristian Tumiati]

The reason is.....

If you use the volume in refraction layer you cannot use the object with "volume".

When you have an object with 2 faces the volume is real.

When you have an object with 1 face (plane ect...) for simulate the volume you need chek the "volume" in refraction layer.

Best.

Cristian.

[glass.use]

i know and i said the solution up there but i was curious to know

[choppir]

Hi Christian,

What do you mean by:

If you use the volume in refraction layer you cannot use the object with "volume".

i don't understand

[Cristian Tumiati]

sorry for my english badddddd.

volume should be ever ON in glass.

Best.