The main reason here is that the scene specific part contains a projection dependent component which would be a problem when transitioning to GZDoom's code. The global viewpoint data already has a field for such a factor so now that gets used.
This also means a significant simplification of the visibility code in Polymost and the removal of several global variables.
Models are inoperable right now anyway so this would never get called, but it does a few things that would cause problems with refactoring the backend code.
Most of what got added is still unused.
# Conflicts:
# source/build/src/palette.cpp
# Conflicts:
# source/build/src/palette.cpp
# Conflicts:
# source/common/engine/i_interface.h
They depend on a deleted texture not writing to the depth buffer, but other parts in the engine like ROR surfaces depend on them writing a proper depth buffer value, so for now there is a global variable that allows to exclude a single tile from ever getting rendered.
The base palette can be set via .def files so that the engine has no access to it until the entire game state is set up.
This means that font translations and PNG palette remap tables cannot be built when the owning objects are created.
For PNGs this has the added advantage that they only get done when really required and not unconditionally - most of the time the remap table isn't even needed here.
Thid fixes the slider graphics in the option menus.
# Conflicts:
# source/core/gamecontrol.cpp
# Conflicts:
# source/core/gamecontrol.cpp
This pulls in a lot of Doom specific font setup, this can be sorted out later as it won't get into the way.
# Conflicts:
# source/CMakeLists.txt
# Conflicts:
# source/glbackend/hw_draw2d.cpp
# Conflicts:
# source/CMakeLists.txt
# Conflicts:
# source/glbackend/gl_texture.cpp
# Conflicts:
# source/CMakeLists.txt
# Conflicts:
# source/build/src/palette.cpp
# source/core/gamecontrol.cpp
Game compiles and runs but transparency doesn't work yet.
# Conflicts:
# source/CMakeLists.txt
# source/core/menu/menu.cpp
# source/core/textures/buildtiles.cpp
I have no idea why this needs to be different than in EDuke32, but without always clearing the depth buffer before rendering a scene viewpoint the game will glitch like crazy.