From f7bc03ad61fa086766d927fe8d20a724a3beb84a Mon Sep 17 00:00:00 2001
From: Eidolon <furyhunter600@gmail.com>
Date: Sun, 30 Oct 2022 23:14:11 -0500
Subject: [PATCH] Use interp position in GL billboarding
---
src/hardware/hw_main.c | 17 +++++++++++++++--
1 file changed, 15 insertions(+), 2 deletions(-)
diff --git a/src/hardware/hw_main.c b/src/hardware/hw_main.c
index c8d2279736..18e276e849 100644
--- a/src/hardware/hw_main.c
+++ b/src/hardware/hw_main.c
@@ -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
--
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