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Artwork => Finished Works and Works in Progress => Topic started by: Trevor on October 23, 2017, 03:18:14 pm

Title: Diffuse Inter-Reflection Test
Post by: Trevor on October 23, 2017, 03:18:14 pm
I was in the process of making a lighting tutorial for PerfectGold when I wanted some comparison shots from An8.
Ive mentioned in the past about ART needing Diffuse Inter-Reflection and ToneMapper but I simulated it with Glossyreflector.

My material settings are crazy
Ambient 0
Diffuse 20 + texture
Specular 0.95 + Texture
Roughness 0

Setting specular to 1 means diffuse doesn't work

Scene Lighting set to 1 for exterior, 4 for interior

Im quite sure these would be much better (not to mention easier to set up) if an8 suported it as a checkbox
Also note that Ambient Occlude is NOT on, AmbOcc is a simplified DIR.

The results
Title: Re: Diffuse Inter-Reflection Test
Post by: Gyperboloid on October 25, 2017, 10:24:19 am
Hm, very interesting !  Not to mention there's not much of such stuff on forum at all. ( lighting in Anim8or in future plans, beside modeling, texturing, rigging/anim8ing)
Sorry for being ignorant, but what's PerfectGold ( didn't find anything ) and what's DIR.

PS.: O.M.G., DIR - Diffuse Inter-Reflection obviously ??? Nothing about PerfectGold though
Title: Re: Diffuse Inter-Reflection Test
Post by: ianross on October 25, 2017, 02:45:17 pm
Nice work, thank you for sharing this.
Title: Re: Diffuse Inter-Reflection Test
Post by: Steve on October 25, 2017, 06:06:34 pm
Trevor: this is a nice collection of images, especially since Anim8or doesn't use Photon Mapping which is much more efficient at rendering diffuse inter-reflections like in your examples.
Title: Re: Diffuse Inter-Reflection Test
Post by: fefe01 on October 27, 2017, 11:58:55 am
Thank You very much for sharing!!! the result is really inspiring. I have not come up to such quality of rendering yet. I'm gonna give it a try! :)
Title: Re: Diffuse Inter-Reflection Test
Post by: Trevor on October 28, 2017, 01:45:20 pm
Thanks everybody, I thought Id share to bring the subject back up since it was a while ago since I last mentioned it (must have been around 2014)

PerfectGold aka GoldenEye Setup Editor (http://goldeneyevault.com). PerfectGold is a concatenation of Perfect Dark and GoldenEye Since the editor supports both as PD was built from GE.
The editor now also supports Diddy Kong Racing, Micky's Speedway and Jet Force Gemini, however I don't think any realistic name could be made from that list of games :P

Trevor: this is a nice collection of images, especially since Anim8or doesn't use Photon Mapping which is much more efficient at rendering diffuse inter-reflections like in your examples.
Ah, is that why you originally said it couldn't be done (My original images of the ship were extremely contrasty)
Ive done a few DIR renders with ART, each time getting better results, these I think are the best which is what prompted me to post them.

For those who want to re-create these are the entire settings

Material:
Ambient 0 (0)
Diffuse 20 (128,128,128) (Optional texture set to Darken)
Specular 0.95 (255,255,255) (If used texture copy here too and again set to darken)
Roughness 0 (9999 for mirror)
Attributes class[type string = glossyreflector]

Scene:
1 infinite light for sun (255, 229, 191) - slightly orange sun to counter the blue sky
1 local light for interior (136, 124, 118) - warm interior light 1/2 as bright as sun
Environment spherical panorama of sky
Global Lighting ambient 0, diffuse 1 (exterior) diffuse 4 (interior)
AA samples min 49


Trev
Attached is the original image and composite sample