This gets rid of the need of a geom shader and instancing.
Both are pretty slow compared to the new method.
The only moment the old method could be better is when scene is filled
with lots of objects and most of the objects in the shadow map appear
on every layer.
But even then, we could optimize the culling and minimize the overhead.
E.g. the vertices created for each of the defines would require a
certain offset. If you don't know what to look for, finding out about
this is pretty difficult. Make them easily searchable instead.
There is quite some mess going on in that most of the old triangle
drawing code is still there, but does almost nothing effectively.
Instead values are hardcoded in the shader, however it doesn't support
the drawing options the triangle functions expose.
E.g. the 'where' variable to set triangle direction doesn't work.
- Wasn't clear which functions handle edit-bones.
- Mixed both ebone and edit_bone in names.
- Didn't use ED_armature_* prefix for public API.
See P655 to apply to branches.
- Move static undo variable into 'WriteData',
'memfile_chunk_add' used arguments in a confusing way,
sometimes to set/clear static var.
- Replace checks for 'wd->current' with 'wd->use_memfile'
move memfile vars into 'wd->mem' struct.
For correct results these must have been set already when the depsgraph was
created and evaluated, so all dependencies have appropriate resolutions too.
For particle we no longer backup and restore the viewport particles to avoid
overwriting them during render, as copy-on-write solves this for us. Even
without COW particles seem to work ok.
This also removes the particle simplification options based on camera. This
was never used much and only available in Blender Internal.
Differential Revision: https://developer.blender.org/D3148
This was only used for viewport rendering, where we can just pass the engine
type directly. There is no technical reason why we can't draw the same depsgrpah
with different render engines.
It also led to some weird things like requiring a render engine for snapping
and raycast API functions.
Differential Revision: https://developer.blender.org/D3145
Scene, view layer and mode are now set in the constructor and never changed.
Time is updated on frame changes to indicate which frame is being or has been
evaluated last.
This is a step towards making EvaluationContext obsolete.
Differential Revision: https://developer.blender.org/D3144
Cycles is no longer using this. There are still addons using it but for
correct results with the new depsgraph this API should not be used.
Differential Revision: https://developer.blender.org/D3143
We now only look into dupli groups to find point caches to edit. This
feature is a leftover from the old proxy system, and evaluating the
full dupli list and all transforms was overkill. With static overrides
we may want to get rid of using duplis entirely, and just let users
select the objects directly.
I can see how it's slowing things down: glFinish make sure that every query
are finished but the first query may have been finished a long time ago.
This might create bubbles because of the PIL_sleep_ms.
It's not just the Graph Editor that needed this - the NLA also uses similar code
and thus suffers from a similar problem.
(My first commit from the Blender Institute v2.0 - Just testing that everything works)
Unless there is an external action from an user, there should not
be need in re-copying original datablock to a copied one.
This brings performance up from 5fps to 11fps with Spring runcycle
(performance in master is 14fps).
Quite straightforward implementation, allows us to remove all the cherry-picking
update of specified scene/view layer/collection fields. Makes it possible to use
generic function to update scene.
The tricky part is that we need to know view layer pointer before the whole
evaluation starts. So we actually expand scene at initialization of evaluation.
context. This is still a bit of an exceptional case, but at least we still avoid
dangerous cherry-picking update.
