illyrianeye Posted August 29, 2005 Share Posted August 29, 2005 I am having the following problem: I have a wood shelf in a wall, with a linear light on top of the shelf. I am pointing the light upwards and only want to see the light going up.However, the light leaks below the shelf, and My shadows are on. any advice? Link to comment Share on other sites More sharing options...
Ray Posted August 29, 2005 Share Posted August 29, 2005 Can you post an image so we can see what you mean? Also, which renderer are you using? Link to comment Share on other sites More sharing options...
illyrianeye Posted August 30, 2005 Author Share Posted August 30, 2005 here is the rendering. I am talking about the wood shelves, see how the light goes through them? The shelves should cas a shadow, and they dont. Shadows are on and the shelves are not excluded. Link to comment Share on other sites More sharing options...
abicalho Posted August 30, 2005 Share Posted August 30, 2005 How large is your meshing? Radiosity is meshing based and stores light in the vertices of the mesh - if your mesh is not dense enough it will not capture the detail you need. Also, keep in mind that adding a shelf will mean that your mesh will have vertices on top and bottom of the shelf, and that also causes light leaks. The best solution is to model acording to that. Link to comment Share on other sites More sharing options...
illyrianeye Posted August 31, 2005 Author Share Posted August 31, 2005 How large is your meshing? Radiosity is meshing based and stores light in the vertices of the mesh - if your mesh is not dense enough it will not capture the detail you need. Also, keep in mind that adding a shelf will mean that your mesh will have vertices on top and bottom of the shelf, and that also causes light leaks. The best solution is to model acording to that. the mesh for the white wood area is 6". the rest of the scene i think i have it under 2'-0". Not sure i understand how i need to model according to that? does that mean i need to not subdivide the shelf? Link to comment Share on other sites More sharing options...
abicalho Posted August 31, 2005 Share Posted August 31, 2005 Nope, you need to cut a hole in the wall where the shelf intersects it. 6" is way larget than your shelf height - no wonder why you aren't getting soft shadows underneath it. You'd need 1/2" - 2" meshing to capture anything there. Link to comment Share on other sites More sharing options...
illyrianeye Posted September 1, 2005 Author Share Posted September 1, 2005 Nope, you need to cut a hole in the wall where the shelf intersects it. 6" is way larget than your shelf height - no wonder why you aren't getting soft shadows underneath it. You'd need 1/2" - 2" meshing to capture anything there. cuting a hole in the wall kinda fixed the problem. I havent tried reducing the mesh size, which was 3" not 6". Is there a point in having shadows in radiosity? when they are ignored? Link to comment Share on other sites More sharing options...
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