Hey folks, I was planning on writing a tutorial on a new method of radiosity that I came up with, but after writing the tut I went and did another scene using that method and the method fell flat on its butt. The problem is that there is another problem that does not make sense. The technic I was using was doing everything great, Radiosity, HDR reflections, faster rendering, when all of a sudden I noticed a potential flaw. If you look at the pic you'll notic how bright the roof is. Now, someone tell me WTF that is? I have a scene with a white globe (size doesnt matter) surrounding the scene. I have 5 spotlights shining up onto the white globe. These spotlights are above the room, not visable through the window. There is no lights in the room what so ever, the atomsphere is completely off. There is no reason why the ceiling should be so much brighter than the floor like that. I thought well maybe the light is bouncing off the ground plane outside the room. I removed the ground plane completely. No effect. I tried 20 different set-ups, different rooms, different lighting. It didn't matter. Same problem every time. I'm at my wits end because sound principles and attempts do not apply to this software. I don't like playing a guessing game everytime I make a scene. Once I learn how somethign should work, it should work that way,not change on you. I don't mean to be a know-it-all or anything, but to me that is a bug. Unless I can be given a logical explanation for the light to act so goofy then I will remain to feel that way. Bryce is a good program if you can accept it's limitations. I guess I can not. I'm going to take a break from Bryce and see what else is out there for what I want to achieve. As it stands right now Bryce can't do that. Maybe Corel can get it's act together and bump Bryce up to some of the other packages out there. I hope so. I like Bryce's GUI, its work flow and the idea behind it. But I guess the extremely slow render engine, the quirky lighting model and the terrain engine just don;t do it for me. I feel I have made a few friends here the short time I was here, and I hate to leave, but when a piece of software is making you pull your hair out over stuff then it's time to move on. I wish you folks the best of luck and hope to be swayed to come back some day :)

seems a shame. It would be a good thing if Bryce did radiosity the way you say, but there's still a lot of nice pics it can create. If you feel this strongly, it's probably time to look at a program that can do radiosity, but there's still plenty you can do with Bryce. Don't be a stranger..

I wish I'd said that.. The Staircase Wit

anahl nathrak uth vas betude doth yel dyenvey..;)

Someone wanted another example, so here it is Same set-up, different angle

Jd, that's how I do all my radiosity pics. heh. Member when I posted about the inverse lightdome in your first post?

Was used in both these renders http://www.renderosity.com/viewed.ez?galleryid=332086&Start=1&Artist=Ornlu&ByArtist=Yes http://www.renderosity.com/viewed.ez?galleryid=331596&Start=1&Artist=Ornlu&ByArtist=Yes

Is Cast Shadows checked in the lights? What about Shadow Ambience? What is the Falloff? Have you tried using a proper texture? What is the Ambience/Ambient of the ceiling? Finally, do you see where the side wall is creating a shadow on the floor? And there's nothing in front of the ceiling.

-- erlik

If it's a globe, doesn't the refraction setting come into play? Not sure how good my input is, since I haven't really played with this type of stuff.

---

Barbequed Pixels?

Your friendly neighborhood Wings3D nut.
Also feel free to browse my freebies at ShareCG.
There might be something worth downloading.

Q: Is Cast Shadows checked in the lights? A: Yes, I want the lighting to cause shadows, else I could just use Global ambiance, but I do WANT shadows. Q: What about Shadow Ambience? A: Shadow ambiance is set to black. All lights have same settings. Q: What is the Falloff? A: No fall-off. All lights are forever and ever ;) Q: Have you tried using a proper texture? A: Well no, but if it wont work with just plain color, then I cant imagine it working with textures. Q: What is the Ambience/Ambient of the ceiling? A: Same as all the other parts of the room. 1 Q: Finally, do you see where the side wall is creating a shadow on the floor? And there's nothing in front of the ceiling. A: Sorry Im not sure what u mean. Whic pic? And pauljs75, that might be something I should look at, not sure about the refraction. I thought refraction only was used when you had some transparency involved.

Both pictures. The window, if that's what it is. The white area, ie, where you see the sphere. The light from the sphere comes directly to the ceiling.

-- erlik

I may be mistaken but if the light settings are set to no falloff then won't the light sometimes pass through objects. I just seem to remember a post about that a while back. Catlin

I've noticed this problem too though when using it in an enclosed area, the thing is you are looking up at the ceiling which is reflecting the white color outside.

"I may be mistaken but if the light settings are set to no falloff then won't the light sometimes pass through objects. I just seem to remember a post about that a while back." Hmmm.. Scratches head. You bastages, Stop giving me hope ;)

Is more light reflected off the outside ground illuminating the ceiling more than the floor which does not receive as much light reflected off the sky?

Although I've thoroughly enjoyed your techniques, Sir JDW, it seems silly to abandon a program just because one technique won't work. Out tests for global lighting and radiousness and such, they are just exploratory and have little to do with actual Bryce scenes, in any event. Don't give up THAT easily! Just make some landscapes, or something different, and go back to this problem with a fresh mind?