1) Preallocating the vertex / index buffers to limit reallocation.
2) Inlining the pushing into the vertex / index buffers.
3) Running the vertex buffer generator on a limited number of threads
as the generator does not scale well due to memory pressure.
Not using all the threads leaves some of the threads to G-code
generator.
Some files have whitespace changes that make resolving conflicts difficult.
Take the version from master first, next commit will apply changes from master_250
CONFLICT (content): Merge conflict in resources/profiles/PrusaResearch.idx
CONFLICT (content): Merge conflict in resources/profiles/PrusaResearch.ini
CONFLICT (content): Merge conflict in src/libslic3r/CMakeLists.txt
CONFLICT (content): Merge conflict in src/libslic3r/Fill/Fill.cpp
CONFLICT (content): Merge conflict in src/libslic3r/GCode.cpp
CONFLICT (content): Merge conflict in src/libslic3r/GCode.hpp
CONFLICT (content): Merge conflict in src/libslic3r/GCode/GCodeProcessor.cpp
CONFLICT (content): Merge conflict in src/libslic3r/GCode/GCodeProcessor.hpp
CONFLICT (content): Merge conflict in src/libslic3r/GCode/SeamPlacer.cpp
CONFLICT (content): Merge conflict in src/libslic3r/GCode/SeamPlacer.hpp
CONFLICT (add/add): Merge conflict in src/libslic3r/Geometry/Curves.hpp
CONFLICT (content): Merge conflict in src/libslic3r/PerimeterGenerator.cpp
CONFLICT (content): Merge conflict in src/libslic3r/Point.hpp
CONFLICT (content): Merge conflict in src/libslic3r/PrintConfig.hpp
CONFLICT (content): Merge conflict in src/slic3r/GUI/ConfigWizard.cpp
CONFLICT (content): Merge conflict in src/slic3r/GUI/GCodeViewer.cpp
CONFLICT (content): Merge conflict in src/slic3r/GUI/GLCanvas3D.cpp
CONFLICT (content): Merge conflict in src/slic3r/GUI/GUI_App.cpp
CONFLICT (content): Merge conflict in src/slic3r/GUI/Gizmos/GLGizmoHollow.cpp
CONFLICT (content): Merge conflict in src/slic3r/GUI/Gizmos/GLGizmoSlaSupports.cpp
CONFLICT (content): Merge conflict in src/slic3r/Utils/FixModelByWin10.cpp
CONFLICT (modify/delete): t/perimeters.t deleted in HEAD and modified in master_250. Version master_250 of t/perimeters.t left in tree.
CONFLICT (content): Merge conflict in tests/fff_print/CMakeLists.txt
CONFLICT (content): Merge conflict in tests/fff_print/test_fill.cpp
CONFLICT (content): Merge conflict in version.inc
CONFLICT (modify/delete): xs/xsp/PerimeterGenerator.xsp deleted in HEAD and modified in master_250. Version master_250 of xs/xsp/PerimeterGenerator.xsp left in tree.
There were two separate issues. Missing update when select_all was invoked in
the scene and missing check when SLA supports/hollow gizmo were asked to select
all points/holes.
