Multiview shaders.
Refactor Frustum management
Rewrite shared shadow map
cull mask should respect stereo
Stereo savegame screencap
LocalMap refactoring
use the vertex buffer hint instead of the display list patch to enable/disable display lists
Character preview fixes
With this PR we refactor a `premultiplied alpha` user string set by `characterpreview.cpp` into a more flexible mechanism allowing us to assign any state to GUI textures. We can consider these changes more future proof than the previous approach.
Currently, we use a peculiar mapping of ESM classes by their std::type_info::name. This mapping is an undefined behaviour because std::type_info::name is strictly implementation defined. It could return a non-unique value on some platforms. With this PR we use the unsigned int sRecordId of the ESM class as a more efficient lookup type that does not build on undefined behaviour. We can expect marginally faster save-game loading with these changes as well.
With this PR we test out osg's shader define system for a somewhat harmless feature. As we can see, our code becomes more concise and efficient in this case. Most importantly, we no longer create unneeded vertex shader objects.
Fixes build errors with older OSG builds and some issues with 'shared' layout.
Bring back ambient in inventory through lightmodel instead of sun ambient, mirrors scene ambient/sunlight relationship.
Forces shaders when certain lighting methods are enabled and finalize settings.
Correctly override sun for localmap.
1. Move weapon types behaviour from switches to the table (should allow
us to de-hardcode weapon types later)
2. Gereralize bones injection to actors skeletons (instead of using the
hardcoded xbase_anim_sh.nif)
