What changed in EDuke32, build by build

polymost.cpp: In gloadtile_art_indexed(), reallocate a texture when the tile changes dimensions even if it is shrinking

polymost.cpp: fix buffer overflow issue in uploadpalswap() & correct the code to initialize an extra row of black pixels

gameexec.cpp: allow G_ShowView() to execute regardless of the state of g_screenCapture.

sector.cpp: ensure that if scripts have told us not to render normally to the tile, that we still handle restoring our target & setting up the tile appropriately for what the script may have rendered

engine.cpp: make renderSetTarget() more robust so that passing an xsiz or ysiz <= 0 is not accepted and can't cause a segmentation fault

polymer.cpp: fix issue where assert could fail due to HUD model sprites having an owner >= MAXSPRITES

polymost.cpp: Fix issue where tiles whose dimensions had grown would not have their sizes updated in GL and could fail to update their texture data

polymost.cpp: If a tile in the tilesheet is large enough to fit a redefined tile, use that space rather than allocating a new texture

polymost.cpp: if an indexed colour tile is being reloaded, changed dimensions, and no longer matches the calculated tilesheets, generate a separate texture for it.

polymost_scansector(): avoid using a culling method not designed for voxels when handling 1-sided wall aligned sprites that have voxel replacements

Fix rendering skyboxes to a tile by altering renderSetTarget() & renderRestoreTarget() to set & reset xdim & ydim so that G_ShowView() can render while a render target is set,

Add updatesectorneighbour() and updatesectorneighbourz() and make them accessible to CON to allow searching for nearby neighbouring sectors from a known sector.

Fix edge case where mirrors & TROR could interact and render over skyboxes in the classic software renderer

osdfuncs.cpp: fix OSD background sometimes not rendering with the correct gl state

Support clamping in polymost1Frag.glsl and use it for sprites

Separate out polymost1Frag and polymost1Vert shaders from polymost.cpp and add rules for building in the GNUmakefile.

polymost.cpp: Adjust shaders to use texture2DGradARB() if available

Fix 32-bit Polymost issues by enabling SSE instructions and setting GCC to use SSE floating point math exclusively.

game.cpp: When A_Spawn() is spawning from an already existing sprite, do not reset the owner field if it has been overridden from the default.

polymost.cpp: Fix polymost_domost() issue with COMBINE_STRIPS where in certain cases, merging with the viewport nodes caused accidental reading of sentinel node values.

Use stencil buffer in Polymost to restrict mirrors to only render within the region of the screen occupied by the mirror wall.

Add EVENT_RESETGOTPICS which gives scripts the chance to reset gotpics (and similar effects trackers) for effects that run in EVENT_DISPLAYROOMS.

Fix TROR & skyboxes to work with mirrors in Software & Polymost

engine.cpp: fix sprite sorting/adjustment issue introduced in r7612 that caused sprites with the same y value at the end of the sorted array to not be adjusted properly

polymost.cpp: Fix issue where state would not be reset properly in polymost_drawmaskwall() when rendering translucent maskwalls with no texture

polymost.cpp: fix polymost_dorotatesprite() alpha test/blend issue introduced in r7619

polymost.cpp: fix issue where floors & ceilings with DAMETH_MASKPROPS were not being blended

engine.cpp: fix bug in killsprite where sprites were not being removed properly after sorting changes

Fix Polymer skybox bug introduced in r7620

Remove enabling/disabling of deprecated GL_TEXTURE_2D in Polymost.

polymost.cpp: switch from writing gl_FragColor to writing gl_FragData[0] in order to reduce VGPR usage on AMD cards

Fix depth buffer issue causing translucent sprites to not render properly in Polymost.

polymost.cpp: fix fragment shader issue where fullbrights in a texture could affect rendering when u_useColorOnly was enabled

engine.cpp: lintersect(): use klabs() instead of abs()