View Full Version : black dots ?
03-21-2005, 12:39 PM
i have scene with final gather influence and one light,
the problem is when i render i get black squires (few pixels height and width)
on object edges, if those were not black it'd look like big antialiasing problem
but it's not, and i cannot figure out what is it about. anybody ?
05-16-2005, 01:15 AM
yep, getting the same prob. it seems increasing the gather rays by one (100 --> 101) seems to stop this problem in the short term, but the black squares creep in again once i command line. the only work around iv found so far is to offset rays, render, save image and continue. bye bye weekend renders i guess :p
05-16-2005, 06:37 AM
Try deleting your lights and re-recreating it. Sometimes that will fix it. Although, I've had these before in a non-related light issue, I had several shaders corrupt and the spec was causing these to pop up.
05-16-2005, 10:27 AM
I've heard that removing/lowering incandescence (if used of course) can help. I personally had this problem with corrupt normals and over-messed faces. After rebuilding the mesh everything was fine.
05-16-2005, 10:51 AM
I had a similar problem when using 3x32Bit framebuffer in combination with some chaotic shading networks...in 3x8 Bit everything looked perfect again...
We went through a simliar problem and found a solution. There was no FG, no GI, and yet these spots showed up. Looked like it was effecting certain pixels. Well what happened was along the modeling process(polys) objects were combined, seperated and so on. Then through out the texturing process single faces were assigned textures that was not shared with the whole poly. Finally adjustments were made to the model. All of these steps contributed to the spots. By clicking on the node in the hypergraph and showing its connections, it revealed that some nodes had up to 5 SG nodes assigned to it. So by cleaning this up and seperating any faces that needed its own texture, the problem went away. Not sure if this will help in your situation but maybe for the future.
05-16-2005, 02:29 PM
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