[Bf-funboard] Freestyle into Blender: Howto?
psyborgue at mac.com
Thu Mar 8 14:08:35 CET 2007
On Mar 8, 2007, at 2:20 AM, Stéphane Grabli wrote:
> Freestyle NPR is a procedural renderer that produces
> line-drawings from 3D models:
> Recently, a project aiming at integrating Freestyle
> to blender was initiated.
> In this context, we are seeking advices from people familiar
> with Blender as to how such integration would best happen.
> Ideally, since Freestyle only produces contour lines (currently as
> 2D triangle strips living in image space), its output
> would easily be composited (in a way or another) to other
> rendered elements such as shadows, objects interiors etc.
> In short: How should a contour-line renderer be integrated
> to Blender?
Well. I think the compositing node was a really bad idea (like I
said on the dev-board). Blender, as it is, is pretty organized. I
do stuff in 3d, i render it, it goes to the compositor, from there to
the sequencer, compressor etc. As it is (AFAIK), apart from the
"defocus" node, the compositor is completely cut off from the 3d
environment. ( for example: one problem with the compositing node
approach: setting multiple material settings in blender isn't
possible, you have to switch renderers to see all the options) Maybe
that could change? It probably should. But I think that would be a
much larger project than incorporating a renderer.
What I think should happen? Just integrate freestyle as another
As it is, Blender supports using multiple renderers in the
compositor. If I want to use separate renderers in a composite, I
have to either use either images, or separate scenes. This works for
the most part and can be very useful since seperate scenes can have
linked data. It is a bit unwieldy to newcomers and not an obvious
option for people to use, but then again, most beginners won't be
compositing. Using a linked scene also allows me to set material
options etc seperately (override materials) on different "scenes" by
switching the material link from "ME" (block) to "OB" (object). I
could specify different objects to be rendered, add things etc. The
possibilities are far less limited than merely creating a compositing
node that dumps all objects on the user with little options to change
Most people think of Layers>Passes, not Scenes(renderer)
>Layers>passes, but as it is in Blender, however, it works! and I
So there's my case. I just didn't want to say that on the dev-board
and start a debate.
> Stephane & Emmanuel
> Bf-funboard mailing list
> Bf-funboard at projects.blender.org
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