The wood was subdivided several times then beveled.
Any ideas?
d2
Actually no subdivision, just bevel.
Do you have transparency or sss on by mistake? Can you post a blend file?
GreyBeard
Could you post a screenshot of your mesh? One possibility is that there’s something wrong with the mesh topology.
The first jpg is from the door above. I want to upload the blend file, but don’t know how. It looks like you can only attach image files. The way to do it is probably obvious, but I don’t see it.
The other 2 show 2 simple objects. The original cube object was scaled then duplicated and rotated, that’s all that was done. Is it normal for the intersection to be a little darker?
I don’t think I have transparency turned on.
I’m using Blender 2.44 with VISTA Home Premium OS and there is no SSS panel.
When I use Internet Explorer and click on an attachment in a message or click on Manage Attachments when replying to a message, nothing happens. Viewing attachments and Manage Attachments both work OK when I use Netscape.
d2
Attachments
Could Ambient Occlusion be darkening the space between the two surfaces, and then somehow getting into the final render?
It may be because you have the two faces exactly overlaid on each other at the intersection. You should make this shape as one object by extruding faces from a cube, then scaling.
Can’t post blend files here. Use a third party storage site (there are plenty of free ones out there) and post a download link. BlenderArtists only accepts image files.
no. it is a problem in 2.43 but has been corrected in 2.44.
I got my blender version #s mixed up and have been using 2.43. I just downloaded 2.44 then opened the “door” blend which was created in 2.43 and rendered it in 2.44 with SSS turned on. See pic. The 2.43 render is on the left and the 2.44 on the right.
It looks like something is going on with just the horizontal boards. The SSS render darkened the light areas on the horizontal boards which make the 10 squares a lot less noticable, but they are still visible. Now the door is 2-toned which I don’t want.
I can create the door by extruding one original cube, but that won’t give me the same realistic individual board look as creating the door one board at a time.
Think I will create new horizontal boards from scratch and see what happens.
I also created from scratch in 2.44 the “+” shape objects. Render yielded the same dark square at the intersection of the 2 boards. When I rendered using SSS, both objects became darker which made the dark square less noticible, but still there.
Something isn’t right and I need to solve this now because it will probably come up again in the future. When it does, all I will need to do is check my notes.
d2
Attachments
looks to me like the shadow is being cast from one of the board faces in “front” onto the one in the “back” but because the board faces are occupying the same space the shadow actually appears to be on top of both.
overlapping polygons like that are just asking for mind boggleing artifacts though… 
I got it. The door is just one part of a bigger scene and I now know what was causing the dark squares, a spotlight with the settings OnlyShado, Buf.Shado, and Classic-Halfway. Classical results in some strange shadows, too. Irregular works OK but the shadows are harder. I will Raytrace the final render.
When I select Classic-Halfway or Classical and do not render the green ground plane, there are no dark squares on the door. Strange.
d2
