[Bf-committers] Blender 2.8: Moving modifiers away from DerivedMesh

Sergey Sharybin sergey.vfx at gmail.com
Wed Apr 18 12:33:44 CEST 2018

Doing such kind of design changes is outside of scope of this particular

Not saying it's not being considered. But keep things separate and

On Wed, Apr 18, 2018 at 12:13 PM, Sybren A. Stüvel <sybren at stuvel.eu> wrote:

> Hey,
> On 17-04-18 14:16, Sergey Sharybin wrote:
> > One of the design decision for Blender 2.8 was to switch modifier stack
> > from DerivedMesh to Mesh.
> >
> > Here is a rough plan and ideas how to do this:
> > https://wiki.blender.org/index.php/Dev:2.8/Source/Modifiers
> Just like the current code, that wiki doc makes the distinction between
> "Deformation-only" and "Constructive". When working with Alembic
> importing this turned out to be a limitation, as in an Alembic file
> sometimes the mesh is deformed and sometimes it needs to be
> reconstructed from scratch (this can change from frame to frame). In the
> current code this distinction is exclusive, that is, a modifier is
> either deforming or constructing, but AFAIK can't be both. I just want
> to point out that in future code we may want to allow a modifier to do
> both.
> --
> Sybren A. Stüvel
> https://stuvelfoto.nl/
> https://stuvel.eu/
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With best regards, Sergey Sharybin

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