View Full Version : What on Mars is going on here?
Balab 04-18-2003, 02:17 AM Hi there everyone!
What is going on here any Ideas? I don't understand where these black dots are coming from!
The scene contains a skylight and a sunlight and its Lightraycer all the way.
The more I shoot the wall at a smaller angle the more dots I get.
This is driving MAD
:annoyed:
By the way there is no bump mapping!
Thanks
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Dave Black
04-18-2003, 02:55 AM
Looks like you're samples are'nt high enough...
-3DZ
:D
Balab
04-18-2003, 11:10 AM
my samples are 250... do you think thats not enough?
What do you typicaly use?
Thanx
Dave Black
04-18-2003, 01:36 PM
Nah, that's high enough. I usually use 20 samples for tests, and 100 to 220 for finals.
There could be some other issues.
Could you take a screencap of you're advanced lighting dialog?
Just so we can rule some things out.
-3DZ
:D
Balab
04-19-2003, 12:11 AM
Here you are guys!:bounce:
CoolmoeDee
04-19-2003, 01:16 AM
I haven't played with the lighttracer in max 5 yet. But I would get black dots in my renders if my shadow samples were too low and increasing the samples solved the problem. Maybe that's what's going on in your render.
Balab
04-19-2003, 01:25 AM
Shadow samples? Did you mean rays per sample?
CoolmoeDee
04-19-2003, 12:39 PM
I meant the shadow sample option you get when you choose the cast shadow map option for a light.
like I said i haven't use the lighttracer in max 5. i just thought that they might be a similar option for the lightracer.
Refracted
04-19-2003, 02:18 PM
nah.. that doesn't look like sample problems actually.. that looks more like "CFC" (coincident face crud, term copyrighted by zeboxx :) ). Happens with brazil anyway, when there are 2 faces at exactly the same location, the raytracer doesn't know which to "choose" and as a result, you get weird artiacts. This usually happens with.. 0-height extrusions, and importing of cad models (autocad is notorious for creating double-faces). I'd check out that wall to make sure you dont have double-faces.
Balab
04-20-2003, 02:46 AM
Originally posted by Refracted
nah.. that doesn't look like sample problems actually.. that looks more like "CFC" (coincident face crud, term copyrighted by zeboxx :) ).
Yes I thought about that but I am positive that there is only one face there! But thanks anyway. Any other Ideas?:hmm:
cgbinho
04-20-2003, 05:14 AM
the wall could be intersectioning with other object.. and causing brazil to f** up.
ZeBoxx
04-20-2003, 07:57 AM
cgbinho :
The scene contains a skylight and a sunlight and its Lightraycer all the way.
:rolleyes:
Best regards,
Richard Annema
dominicqwek
04-21-2003, 11:38 AM
turn on supersampling for your mat. try hammersly sampling.
mrapelje
04-21-2003, 08:03 PM
Change your filter size from 0.5 to 3 and that should fix it.
Balab
04-22-2003, 01:06 AM
ThanX ... this must be it, I also installed the 5.1 upgrade and everything is fine now.
Thanks again guys!:buttrock:
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