Most of this patch was created by Daniel Stokes, I'm mostly just cleaning
it up and testing it. Still todo: hardness. I need to figure out how to
handle the integer -> float conversion on a dynamic uniform.
Reviewers: psy-fi, brecht
Reviewed By: psy-fi
Subscribers: psy-fi
Differential Revision: https://developer.blender.org/D511
An assertion to check if `re->clipsta` < 0 (added as part of addressing
T36009 in rBrB795034c17d76bef2a15e576ac9c70ae2268a823b) was failing when
Freestyle viewport preview rendering takes place in the camera view with
an orthographic camera (in this case, the user-defined clipping range is
used without changes, so that `re->clipsta` is positive). The
`re->clipsta` property has a negative value only when the 3D viewport is
in an orthographic view but not in the camera view. It seems that this
viewport setting cannot be identified from rendering settings accessible
from Freestyle. Now a negative `re->clipsta` value is directly checked
instead, without relying on other render flags.
This commit mainly:
* Exposes PreviewImage struct in RNA, including ways for user to set images data.
* Adds a new kind of PreviewImage, using a file path and IMB_thumb to get image.
* Adds a new kind of custom icon using PreviewImage, unrelated to ID previews system.
* Adds a python API (utils.previews) to allow python scripts to access those custom previews/icons.
Note that loading image from files' thumbnails is done when needed (deferred loading), not
when defining the custom preview/icon.
WARNING: for release addons who would want to use this, please keep it to a strict minimum, really needed level.
We do not want our UI to explode under hundreds of different flashy icons!
For more info, see also the release notes of Blender 2.75 (http://wiki.blender.org/index.php/Dev:Ref/Release_Notes/2.75/Addons)
and the example/templates featured with Blender.
Patch by Campbell (ideasman42), Inês (brita) and Bastien (mont29).
Differential Revision: https://developer.blender.org/D1255
Many thanks to Sergey, for practically giving the solution!
Note that it may also fix T44345, depends whether there are other missing
protections/locks or not...
preview"
Looks like this does not work for animators here after all, will use a
different code for this (probably not hardcoded)
This reverts commit 3bbb4020e7.
We can calculate tangents analytically for bezier curves, so just make
them awesome. New code uses forward differencing calculation for
efficiency just like curve calculation.
Picture before/after:
http://www.pasteall.org/pic/87843
Since it was not ensuring dest has valid mdisp data matching new multires modifier subdiv level...
Also, fixed a bug in `multires_subdivide()`, which would crash when trying to
increase from level 0 (aka no subdiv) to > 1 (wrong check, trying to interpolate
when it should not). And added a few sanity checks.
Looks like the previous commit here is really correct and fixes cases of
distortion that were in mirror-subsurf combination since blender 2.5.
This may cause some changed files in which case we will be adding an
option, but it is expected this will only happen with low res models,
and hand painted textures, and the better distortion here compensates
for that enough to consider not adding a compatibility option yet.
Leaving the facemap winding argument as is just in case we do consider
to add the option.
