Add a special case for 0-time interpolations

1 files changed, 4 insertions, 0 deletions

diff --git a/thirdparty/misc/easing_equations.cpp b/thirdparty/misc/easing_equations.cpp
index ce32c1a362..d164e3d560 100644
--- a/thirdparty/misc/easing_equations.cpp
+++ b/thirdparty/misc/easing_equations.cpp
@@ -312,6 +312,10 @@ Tween::interpolater Tween::interpolaters[Tween::TRANS_MAX][Tween::EASE_MAX] = {
 };
 
 real_t Tween::run_equation(TransitionType p_trans_type, EaseType p_ease_type, real_t t, real_t b, real_t c, real_t d) {
+	if (d == 0) {
+		// Special case to avoid dividing by 0 in equations.
+		return b + c;
+	}
 
 	interpolater cb = interpolaters[p_trans_type][p_ease_type];
 	ERR_FAIL_COND_V(cb == NULL, b);