From 3bafcea09e3b2935f99b694fd868243785c4a8fc Mon Sep 17 00:00:00 2001
From: Sting <lallegre26@gmail.com>
Date: Fri, 20 May 2022 05:41:32 +0200
Subject: [PATCH] Fixed quaternion product
---
quaternion.lua | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/quaternion.lua b/quaternion.lua
index 4aed970..d0af7da 100644
--- a/quaternion.lua
+++ b/quaternion.lua
@@ -32,10 +32,10 @@ function quaternion.identity() return quaternion.new() end
function quaternion.mul_quaternion(q1, q2)
local b, c, d, a = q1:normalized():unpack()
local f, g, h, e = q2:normalized():unpack()
- return quaternion.new(a*e - b*f - c*g - d*h,
- a*f + b*e + c*h - d*g,
+ return quaternion.new(a*f + b*e + c*h - d*g,
a*g + c*e + d*f - b*h,
- a*h + d*e + b*g - c*f)
+ a*h + d*e + b*g - c*f,
+ a*e - b*f - c*g - d*h)
end
-- Returns a vector equal to the vector v (size >= 3)
--
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