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Use interp position in GL billboarding

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This commit is contained in:
Eidolon 2022-10-30 23:14:11 -05:00
parent af753b5268
commit f7bc03ad61
1 changed files with 15 additions and 2 deletions
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17
src/hardware/hw_main.c
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@ -3758,11 +3758,24 @@ static void HWR_RotateSpritePolyToAim(gl_vissprite_t *spr, FOutVector *wallVerts
&& spr && spr->mobj && !R_ThingIsPaperSprite(spr->mobj)
&& wallVerts)
{
float basey = FIXED_TO_FLOAT(spr->mobj->z);
// uncapped/interpolation
interpmobjstate_t interp = {0};
// do interpolation
if (R_UsingFrameInterpolation() && !paused)
{
R_InterpolateMobjState(spr->mobj, rendertimefrac, &interp);
}
else
{
R_InterpolateMobjState(spr->mobj, FRACUNIT, &interp);
}
float basey = FIXED_TO_FLOAT(interp.z);
float lowy = wallVerts[0].y;
if (!precip && P_MobjFlip(spr->mobj) == -1) // precip doesn't have eflags so they can't flip
{
basey = FIXED_TO_FLOAT(spr->mobj->z + spr->mobj->height);
basey = FIXED_TO_FLOAT(interp.z + spr->mobj->height);
}
// Rotate sprites to fully billboard with the camera
// X, Y, AND Z need to be manipulated for the polys to rotate around the