Gliese 667

Started by ares2101, October 18, 2013, 04:42:48 PM

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ares2101

Started this one on my main PC (rehash of an old project), attempted to finish remaining crops on new render machine, but noticed something weird.  You can see in the lower right eighth where the lighting doesn't match up.  GI Caching is meant to avoid this exact thing, no?  I used a GI Cache file for this whole thing.  At first I wondered if it was because a different PC did that piece, but the upper half of the image was also done on the render machine and it meshes well with the rest of the lower area that was originally done on other PC.  I've got a non-cropped render started (teamviewer is kinda cool, by the way), but wondering if anyone has seen this happen with a GI cache before.  Render Machine or no, I can imagine situations where I'll still want to crop render, such as if expecting a storm soon, so this is concerning.


fleetwood

Good mood.
After being drawn first to the non-matching light area you mentioned, my eye is drawn to the very narrow reflection of the very wide sun.
I seem to remember that this is related to the min highlight spread of the water shader.

ares2101

Quote from: fleetwood on October 18, 2013, 11:51:20 PM
Good mood.
After being drawn first to the non-matching light area you mentioned, my eye is drawn to the very narrow reflection of the very wide sun.
I seem to remember that this is related to the min highlight spread of the water shader.

Huh, I never noticed that before...that needs fixing now that I have.

Matt

Quote from: ares2101 on October 18, 2013, 04:42:48 PM
Started this one on my main PC (rehash of an old project), attempted to finish remaining crops on new render machine, but noticed something weird.  You can see in the lower right eighth where the lighting doesn't match up.  GI Caching is meant to avoid this exact thing, no?  I used a GI Cache file for this whole thing.

It looks like sunlight (the lack of a shadow) in the atmosphere, rather than GI. If your atmosphere has "Receive shadows from surfaces" enabled then it could be that there's a problem with the shadows from the background mountains casting into the atmosphere on the right hand side. If so, you can probably fix this by setting the Ray Detail Region to "Detail in camera". If it's set to the default "Detail in crop region" then shadows from mountains outside of the crop may not be calculated properly. It could also be due to the Acceleration Cache setting on you cloud layers, but I would try the first suggestion first (if you have "Receive shadows from surfaces" enabled).

Matt
Just because milk is white doesn't mean that clouds are made of milk.

ares2101

Quote from: Matt on October 19, 2013, 09:49:57 PM
It looks like sunlight (the lack of a shadow) in the atmosphere, rather than GI. If your atmosphere has "Receive shadows from surfaces" enabled then it could be that there's a problem with the shadows from the background mountains casting into the atmosphere on the right hand side. If so, you can probably fix this by setting the Ray Detail Region to "Detail in camera". If it's set to the default "Detail in crop region" then shadows from mountains outside of the crop may not be calculated properly. It could also be due to the Acceleration Cache setting on you cloud layers, but I would try the first suggestion first (if you have "Receive shadows from surfaces" enabled).

Matt

I've made a note of this for future reference, but for the time being, I've got the render machine working on an uncropped render, which should avoid any such glitches.  From the looks of things, I'd guess it will finish tomorrow afternoon or evening (~10 pm for me now).

ares2101

OK, after over 30 hours of rendering (render machine only has a 3-core), I have the final version of this redo.