Let me try sending this again without attaching the screen shot. Maybe that's why my posts are not showing up.
---------- Forwarded message ---------- From: Henry Tjernlund <[email protected]> Date: Mon, 3 Aug 2009 07:16:04 -0400 Subject: Teacup lighting To: [email protected] I worked through part of the part of the user manual on NURBS. I go inspired to make a tea cup, which worked well, BTW. Then I wanted to render it in global lighting. Attached is a screen capture of the render in RS 5. I added a background wall with the "Paper" material and changed the color to a light lavender. When I render I get a bright hot-spot. It doesn't show up until the second pass of the processing (which I assume is the GI post processing.) Lighting is provided by a rectangle make into a Special-Light. But that doesn't seem to be the cause of the hot-spot. The hot spot seems to be coming from another rectangle I am using to get a window-like reflection on the Porcelain material of the cups. That rectangle has the "Unshaded" material applied to it, which looks self-luminous. If I had that second rectangle, then the hot-spot goes away, but so do the nice and interesting reflections in the cups. I have thought of several ways to try and fix this, but each takes a while to do test renders. (Just this screen render took almost 3 hours.) So instead of spending days trying a multitude of tests, I am hoping that the experts here can suggest just the ideal fix. -- -- Henry Tjernlund http://www.renderosity.com/mod/gallery/browse.php?username=henrytj http://www.modelmayhem.com/HenryTjernlund http://imdb.com/name/nm2519729/ http://www.myspace.com/henrytj http://henrytj.deviantart.com/
