landrvr1 Posted November 17, 2009 Share Posted November 17, 2009 I'm getting some terrible scallop type splotches on some glass, and have not been able to figure a way to eliminate them. This seems to be a shadow issue, as turning off receive shadows fixes the issue. When I increase the brightness of the ceiling, the problem goes away. Turning off reflections has no effect, but turning off refraction makes the problem go away. I'm happy with the light/dark values of the scene, and don't really want to mess with increasing the lighting or material brightness. Any suggestions? Tnx. Link to comment Share on other sites More sharing options...
landrvr1 Posted November 28, 2009 Author Share Posted November 28, 2009 *bump* Wow, anybody? lol. Link to comment Share on other sites More sharing options...
WAcky Posted November 29, 2009 Share Posted November 29, 2009 I would try firstly increase your lightcache samples to about 2000 and for your interp samples and hsph subdivs back to 50 and say 20 or 30. These two values can often create problems when they're just bumped up willy nilly. Link to comment Share on other sites More sharing options...
lensfx Posted November 29, 2009 Share Posted November 29, 2009 the easiest way...you can fix it with photo editor (ex: Photoshop) hihihi.....thats the better way than you rerender your scene...... Link to comment Share on other sites More sharing options...
WAcky Posted November 29, 2009 Share Posted November 29, 2009 That may be so but will you ever learn why this problem occured? No. And what happens if this problem occurs again in a situation that cant be fixed in photoshop? I reckon it's better practice to fix the problems before you get out of your 3D package. Link to comment Share on other sites More sharing options...
Tommy L Posted November 29, 2009 Share Posted November 29, 2009 I think you need to re-calculate the irradience map. Link to comment Share on other sites More sharing options...
landrvr1 Posted November 30, 2009 Author Share Posted November 30, 2009 I would try firstly increase your lightcache samples to about 2000 and for your interp samples and hsph subdivs back to 50 and say 20 or 30. These two values can often create problems when they're just bumped up willy nilly. Yeah, tried increasing the samples before and that didn't work. Dialing back the interp samps and subs also didn't work. The scallops get reduced, but are still there. @Tommy L Not following you here. This was a single frame render with so saved cache. What do you mean? Link to comment Share on other sites More sharing options...
Tommy L Posted December 1, 2009 Share Posted December 1, 2009 @Tommy L Not following you here. This was a single frame render with so saved cache. What do you mean? I misread it, my mistake. Dont listen to me, Im a div. Link to comment Share on other sites More sharing options...
Tommy L Posted December 1, 2009 Share Posted December 1, 2009 What lights do you have in your scene? It may be that a light somewhere has a goofy shadow setting. Maybe an .ies set to shadow map? Link to comment Share on other sites More sharing options...
aristocratic3d Posted December 1, 2009 Share Posted December 1, 2009 first of all sorry for my bad English. there has a self illuminated object at the opposite site of that glass material. or there has a window at the opposite site of that glass material, a bright light is coming through that path. So you cant get rid of it until that light reduced... Link to comment Share on other sites More sharing options...
landrvr1 Posted December 1, 2009 Author Share Posted December 1, 2009 the easiest way...you can fix it with photo editor (ex: Photoshop) hihihi.....thats the better way than you rerender your scene...... lol. That is the easiest way. However, like many folks I need to do things the hard way. Seriously, though. WAcky is correct in that I'd like to solve the problem. Plus, I do a lot of animations so cheating in Photoshop won't help me in the long term. Link to comment Share on other sites More sharing options...
landrvr1 Posted December 1, 2009 Author Share Posted December 1, 2009 first of all sorry for my bad English. there has a self illuminated object at the opposite site of that glass material. or there has a window at the opposite site of that glass material, a bright light is coming through that path. So you cant get rid of it until that light reduced... Hmm. That's one way to eliminate the problem, but reducing the light isn't an option. I need that light to acheive the correct design. @TommyL No light issues. Hmm. Someone over at Chaos has responded to my post there. BRB. Link to comment Share on other sites More sharing options...
landrvr1 Posted December 1, 2009 Author Share Posted December 1, 2009 Ahh, the answer has come from rivoli over at the Chaos forums. I had to change the LC filter from nearest to fixed. Never would have thought to do that. Tnx all. Link to comment Share on other sites More sharing options...
aristocratic3d Posted December 1, 2009 Share Posted December 1, 2009 great solution. ha ha. really. thanks Scott for sharing the info. Link to comment Share on other sites More sharing options...
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