GNU bug report logs - #36977
Add OpenSubdiv library, and add as Blender dependency

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Christopher Lemmer Webber <cwebber <at> dustycloud.org>
To: bug-guix <bug-guix <at> gnu.org>
Subject: Add OpenSubdiv library, and add as Blender dependency
Date: Thu, 08 Aug 2019 11:28:21 -0400

I was surprised to open Blender 2.80 and find that subdivision surfaces
(necessary for organic modeling) were doing nothing.  I couldn't figure
out why this was, until I found out that Blender now uses OpenSubdiv
for subdivision surfaces.

Don't think I have time to package it right now, but if someone was
willing to package this and add it as a Blender dependency, I'd be
extremely grateful to them.

 - Chris

Message #8 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Carlo Zancanaro <carlo <at> zancanaro.id.au>
To: bug-guix <at> gnu.org
Cc: 36977 <at> debbugs.gnu.org
Subject: Re: bug#36977: Add OpenSubdiv library, and add as Blender dependency
Date: Sun, 11 Aug 2019 21:32:13 +1000

[Message part 1 (text/plain, inline)]

On Fri, Aug 09 2019, Christopher Lemmer Webber wrote:
> I was surprised to open Blender 2.80 and find that subdivision 
> surfaces (necessary for organic modeling) were doing nothing.  I 
> couldn't figure out why this was, until I found out that Blender 
> now uses OpenSubdiv for subdivision surfaces.

I gave this a go, but it didn't go as smoothly as I had hoped. I 
packaged opensubdiv, which I have attached, but adding it to the 
Blender inputs didn't cause the subdivision modifier to work. I'm 
not really able to take this any further, but this is at least 
something to start with!

[0001-gnu-Add-opensubdiv.patch (text/x-diff, attachment)]

Message #14 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Carlo Zancanaro <carlo <at> zancanaro.id.au>
To: bug-guix <at> gnu.org
Cc: 36977 <at> debbugs.gnu.org
Subject: Re: bug#36977: Add OpenSubdiv library, and add as Blender dependency
Date: Mon, 12 Aug 2019 20:21:44 +1000

[Message part 1 (text/plain, inline)]

On Sun, Aug 11 2019, Carlo Zancanaro wrote:
> ... adding it to the Blender inputs didn't cause the subdivision 
> modifier to work. ...

Well, it turns out I just had to add the -DWITH_OPENSUBDIV=ON 
configure flag. Here's a new patch to do that!

[0001-gnu-blender-Add-opensubdiv-as-an-input.patch (text/x-diff, attachment)]

Message #22 received at 36977-done <at> debbugs.gnu.org (full text, mbox):

From: Leo Famulari <leo <at> famulari.name>
To: Carlo Zancanaro <carlo <at> zancanaro.id.au>
Cc: 36977-done <at> debbugs.gnu.org
Subject: Re: bug#36977: Add OpenSubdiv library, and add as Blender dependency
Date: Tue, 13 Aug 2019 14:44:31 -0400

[Message part 1 (text/plain, inline)]

On Mon, Aug 12, 2019 at 08:21:44PM +1000, Carlo Zancanaro wrote:
> On Sun, Aug 11 2019, Carlo Zancanaro wrote:
> > ... adding it to the Blender inputs didn't cause the subdivision
> > modifier to work. ...
> 
> Well, it turns out I just had to add the -DWITH_OPENSUBDIV=ON configure
> flag. Here's a new patch to do that!

Thanks! Pushed as 588a0a335d09311197352c7f49d5541ef2717cc8

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