AO weirdness

Support Compositing and Post Processing
1

What’s going on here. I’ve attached 4 images.

They are a combination of shadows and/or Ambient occlusion being on or off.

1 No shadows or AO = What I would expect.
2 No shadows but AO on = Yikes its all black. Not what I would expect at all
3 Shadows on and AO off = Well it basically looks like AO is still on.
4 Shadows on and AO on = Seems to confirm my suspicions about 3 as it’s identical, indicating that AO is on when shadows are on.

Is this a bug, does it happen to anyone else?
I’m 64bit ubuntu.

And I use 2 direction lights and a sky texture hdri probe to light the scene.

Attachments

AO yes-Shadows-no.jpg900×1000 19.8 KB

AO no-Shadows no.jpg900×1000 35.4 KB

AO no-Shadows yes.jpg900×1000 46.8 KB

2

last image

Attachments

AO no-Shadows yes.jpg900×1000 46.8 KB

3

Maybe duplicate the file, delete the head, throw in a block and upload a .blend file to look at.

4

I can’t pack the light probe so you’l have to download it. Its the uffizi_probe.hdr you can get it here.

http://ict.debevec.org/~debevec/Probes/

Ok so it’s definitely got something to do with the environment lighting. The issue seems to resolve if it’s turned off.
So try turning off shadows and rendering.

Attachments

aoprob1.blend (204 KB)

5

This is what mine renders out to.[ATTACH=CONFIG]121137[/ATTACH]

6

Is that with shadows off?

7

[ATTACH=CONFIG]121141[/ATTACH]That was Shadows on, AO on.
Here is Shadows off, AO on, Sky box checked in Layers

I added the Reflecting ball in there.

8

Ok it’s difficult to tell from that. Can you render the scene I posted without changing anything, except turning shadows off, please.

When I do that I get this.

Attachments

aoprob.png900×1000 13.9 KB

9

Shadows off.[ATTACH=CONFIG]121145[/ATTACH]