Blender Git Commits

BGE: alpha on frame buffer and precedence of MSAA over swap.

A new option '-a' can be passed to the blenderplayer. It forces the
framebuffer to have an alpha channel.
This can be used in VideoTexture to return a image with alpha channel
with ImageViewport (provided alpha is set to True on the ImageViewport
object and that the background color alpha channel is 0, which is the
default).
Without the -a option, the frame buffer has no alpha channel and
ImageViewport always returns an opaque image, no matter what.
In Linux, the player window will be rendered transparently over
the desktop.
In Windows, the player window is still rendered opaque because
transparency of the window is only possible using the 'compositing'
functions of Windows. The code is there but not enabled (look for
WIN32_COMPOSITING) because 1) it doesn't work so well 2) it requires
a DLL that is only available on Vista and up.

give precedence to AA over Swap copy:

Certain GPU (intel) will not allow MSAA together with swap copy.
Previously, swap copy had priority over MSAA: fewer AA samples would be
chosen if it was the condition to get swap copy. This patch reverse the
logic: swap copy will be abandonned if another swap method (undefined or
exchange) will provide the number of AA samples requested. If no AA
samples is requested, swap copy still has the priority of course.

GPU: only call glShadeModel when needed

GPU: avoid multiple bind calls in GPU_draw_pbvh_buffers

Also add utility functions: GPU_basic_shader_bind_enable/disable
so we don't have to get the previous state every time and manipulate it

Reduce conflicts be keeping same indent-level as master

Merge branch 'master' into blender2.8

Flat shading for basic shader

The purpose of the patch is to replace deprecated glShadeModel.

To decrease glShadeModel calls I've set GL_SMOOTH by default

Reviewers: merwin, brecht

Reviewed By: brecht

Subscribers: blueprintrandom, Evgeny_Rodygin, AlexKowel, yurikovelenov

Differential Revision: https://developer.blender.org/D1958

Merge branch 'master' into blender2.8

Merge branch 'master' into blender2.8

Fix T48614: Blender from buildbot crash when Separate selection in this particular scene.

Regression from recent rB2c5dc66d5effd4072f438afb, if last item of last chunk of a mempool was valid,
it would not be returned by mempool iterator step, which would always return NULL in that case.

Compilation error fix after recent cleanup

Please do not do cleanups in minimal configuration, doing that has been
proven to only cause issues without solving anything meaningful ;)

Cleanup: GPU arg wrapping

Cleanup: GPU headers

GPU: avoid disabling basic-shader for lasso

Replace glDrawPixels w/ glaDrawPixelsTex

Fix armature stick draw, unpack-alignment was set but never restored

Drawing a single stick bone set the alignment to 1, applying this setting to the rest of Blender.

glutil: add glaGetOneInt helper

Depsgraph: Avoid redundant connection from IK solver to chain

Could give barely measurable speedup on a complex rigs.

Depsgraph: Remove unused code

Became obsolete after recent changes.

Depsgraph: Optimize flush update when there's few objects and fewzillions of bones

Avoid annoying checks form inside operations loop, gives few percent speedup in
files like army_of_blenrigs.

GPU: fix texface image w/ basic-shader

Make uiLists placed in popups usable

It's still not completely working - there are still some glitches - but far better than before.
To make buttons of the uiList work, you have to add a 'check' callback to the operator that invokes the menu. Only if it returns True, the uiList gets refreshed. To avoid this we have to make the region refresh tagging in the entire button handling a bit smarter.

Changes I had to do:
* Call uiList handling from menu/popup handling if needed.
* Make uiList handling use special popup refresh tag if placed in menu.
* Allow popups invoked from py operator to tag for refresh by using operator 'check' callback.
* Tag popup for refresh when resizing uiList.

Mostly fixes T48612.