From e32b8a41e5db00eeb59377e9cdc069a7fe8ea2a8 Mon Sep 17 00:00:00 2001
From: Eidolon <furyhunter600@gmail.com>
Date: Sat, 12 Nov 2022 15:14:04 -0600
Subject: [PATCH] Only interpolate shadowcasters if they exist
---
src/hardware/hw_main.c | 27 +++++++++++++++------------
1 file changed, 15 insertions(+), 12 deletions(-)
diff --git a/src/hardware/hw_main.c b/src/hardware/hw_main.c
index ec78a3d352..6d2f8c2826 100644
--- a/src/hardware/hw_main.c
+++ b/src/hardware/hw_main.c
@@ -5300,21 +5300,24 @@ static void HWR_ProjectSprite(mobj_t *thing)
if (thing->renderflags & RF_SHADOWEFFECTS)
{
mobj_t *caster = thing->target;
- interpmobjstate_t casterinterp = {};
-
- if (R_UsingFrameInterpolation() && !paused)
- {
- R_InterpolateMobjState(caster, rendertimefrac, &casterinterp);
- }
- else
- {
- R_InterpolateMobjState(caster, FRACUNIT, &casterinterp);
- }
if (caster && !P_MobjWasRemoved(caster))
{
- fixed_t groundz = R_GetShadowZ(thing, NULL);
- fixed_t floordiff = abs(((thing->eflags & MFE_VERTICALFLIP) ? caster->height : 0) + casterinterp.z - groundz);
+ interpmobjstate_t casterinterp = {};
+ fixed_t groundz;
+ fixed_t floordiff;
+
+ if (R_UsingFrameInterpolation() && !paused)
+ {
+ R_InterpolateMobjState(caster, rendertimefrac, &casterinterp);
+ }
+ else
+ {
+ R_InterpolateMobjState(caster, FRACUNIT, &casterinterp);
+ }
+
+ groundz = R_GetShadowZ(thing, NULL);
+ floordiff = abs(((thing->eflags & MFE_VERTICALFLIP) ? caster->height : 0) + casterinterp.z - groundz);
shadowheight = FIXED_TO_FLOAT(floordiff);
shadowscale = FIXED_TO_FLOAT(FixedMul(FRACUNIT - floordiff/640, casterinterp.scale));
--
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