RE: Friday Flashback #382

[Matt Lind]

Me too.

I imported old work from Softimage|3D only to discover that despite the 
abundance of new features by comparison, XSI's toon shading couldn't produce 
the same look.  Now I have to re-light my scene.  :(

Specific differences between SI3D and XSI toon shading:

1. SI3D toon shading followed a phong shading model to place highlights and 
shadows (specular, diffuse, ambient).  XSI draws the lines between these 
boundaries differently.  To match the look you must manually specify the 
thresholds per material.  Even when you match the look from a particular 
camera angle, everything is ruined when the subject, camera, or light moves.

2.  SI3D toon shading had the option to make the ink lines the same color as 
the material's ambient color.  In XSI you must use the override feature and 
specify the ink color manually per shader.  This creates additional nodes in 
the rendertree in the form of color share nodes to plug into the ambient 
(surface) and ink ports to ensure they stay in sync.

3. SI3D ink lines taper very nicely to a sharp point when the line is drawn 
because geometry folds back on itself (as opposed to a material or object 
boundary).  XSI toon shaders don't do that quite as well.  The distance 
threshold doesn't seem to respect the values well either.

That's not to say I don't like the XSI toon shading, as I was one of the 
primary beta testers of this tool back in the day.  I just don't recall 
having these problems back then.  Something changed over the years.

The other irony is that the original scene was created overnight in SI3D, 
but it's taking me much longer than that to do it in XSI despite more tools, 
features, and much faster hardware at my disposal.   H.


Matt


Date: Fri, 16 Aug 2019 13:08:28 –0400
From: Sven Constable
Subject: RE: Friday Flashback #382
To: "Official Softimage Users Mailing List.

used the MR toon shading just yesterday. What a coincidence :) 


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RE: Friday Flashback #382

[Sven Constable]

used the MR toon shading just yesterday. What a coincidence :)

 

From: softimage-boun...@listproc.autodesk.com
[mailto:softimage-boun...@listproc.autodesk.com] On Behalf Of Stephen Blair
Sent: Friday, August 16, 2019 7:10 PM
To: Official Softimage Users Mailing List.
https://u9432639.ct.sendgrid.net/wf/click?upn=lIXdN6W56FnEjHCwrBXqOq0HQNpV0huvAGw1zu6Xp8eVQuk2cNZiNFjx2k-2FfTNchiLG9o7ECJDJ0Mw-2FRzSlfldhFWvv2G7M9xrogMv-2BiUgrG-2BmCVAfC2HxBWG0Czpbw8UUe9Xkbh68Twjp-2FiA-2FSErOz3lccvrWE7C7snOO94pqmTkDnU09wuG-2FkEm7HJQnrZzQY-2B53gQmbgC-2FF9m19y4wNQ520J-2FWrQM4tGWKNMloZtluITcEwX3yKg8ukanaldxje39eDORBRlex-2FNW0Q3mD8HpE5XVvyUnroJZ9MIR8K9IkWntUwcTDhoXkiQacP9trhP0ijC3DsWZIYdOb52Ndb7XHdiriJGBSsyvJwTEo7CPuhBv4334KkPp0irESdJ1nA1QRqRjHy41-2FLV6ly1hQw-3D-3D_a6oQc7tnfcb0GKvoO27fPkrQ0ATQyF1SDBXJOg7-2FbuRZw39p0VPjm0F1KHFzwJpLfjpd9TE5XWiiAG5qjMYuJ34ez7WcPdlHupkGMNVe1SvRvJzLHozesc-2Bxs1P8cMEZopNB8bQR75TTpXHhZUWq1Ae7U8-2BHNKvBxMeokOhB4It40Gqnp7vGIWgchWfSIaD6AsDlbidK7CzBj2P4aqjg2FcY-2FILPQXejUxYtsrWfHsk-3D
 
Subject: Friday Flashback #382

 

toonbot screenshot from the XSI 2.0 days

https://u9432639.ct.sendgrid.net/wf/click?upn=lIXdN6W56FnEjHCwrBXqOq0HQNpV0huvAGw1zu6Xp8eVQuk2cNZiNFjx2k-2FfTNchE18B7lYLnvRU16qf6Hf-2B5o-2FFNTg1ENl0KAXG23c4rbtUde3AaAVLMQgxoU2JhggBPsROUEHmatzANexjlFimQMVTtSf-2FqGFLFmeokKChmNvY-2F6jNIKsWvOJcbMlKKytO5lQNmabS8L-2BCq5VYKW0e-2Bzml-2Fg95s8WbtQB4xVhfr2pCEVoaVJBp9FDsqai1kOrzgQEs1jpyNfysSBdZREKuStxabf1Fg1np1umWCqBVhBFfFxvIqNZGVKuSaAA0Zp-2F1tq4YkTkqi6RXahmB96BQJQVl8id7mTvwlTVgUJaG-2FsbDdiZvksfSYEao89GpU9Ki_a6oQc7tnfcb0GKvoO27fPkrQ0ATQyF1SDBXJOg7-2FbuRZw39p0VPjm0F1KHFzwJpLfjpd9TE5XWiiAG5qjMYuJ6-2FxL04HImH3ijYw3gPKJRSPzhkyfQ61cmSEKt7frTolwjnMTMgr3gmENe0928YfEKgyoEFB02EysbgCF20IUWDGxhracZpjzj9RrN05EramW-2B2tA-2B9dtGI8BgnrNEtLcBJZxvpa184G710Clr8LxU4-3D
 

 
 

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