From 708e11df0b3f2d85b15c00b5333f24afb51472e8 Mon Sep 17 00:00:00 2001
From: Max Cahill <max@1bardesign.com>
Date: Fri, 18 Oct 2024 15:26:54 +1100
Subject: [PATCH] early-out non-rotations for vec3:rotatei (common for manual
 euler transforms)

---
 vec3.lua | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/vec3.lua b/vec3.lua
index ca14260..6c5d8f9 100644
--- a/vec3.lua
+++ b/vec3.lua
@@ -328,6 +328,9 @@ end
 --rotate around a swizzle
 --todo: angle-axis version
 function vec3:rotatei(swizzle, angle)
+	if angle == 0 then --early out
+		return self
+	end
 	local v = vec2:pooled()
 	self:extract_vec2(swizzle, v)
 	v:rotatei(angle)