From 1f5f41711609ade4df5383ae18cdb6723639e54f Mon Sep 17 00:00:00 2001 From: IllusionMan1212 Date: Sun, 28 Apr 2024 21:44:34 +0200 Subject: [PATCH] fix(linalg/glsl): incorrect quat by vector3 multiplication --- core/math/linalg/glsl/linalg_glsl.odin | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/core/math/linalg/glsl/linalg_glsl.odin b/core/math/linalg/glsl/linalg_glsl.odin index bda1f1723..363a95887 100644 --- a/core/math/linalg/glsl/linalg_glsl.odin +++ b/core/math/linalg/glsl/linalg_glsl.odin @@ -1724,7 +1724,7 @@ quatFromMat4 :: proc "c" (m: mat4) -> (q: quat) { @(require_results) quatMulVec3 :: proc "c" (q: quat, v: vec3) -> vec3 { xyz := vec3{q.x, q.y, q.z} - t := cross(xyz, v) + t := cross(2.0 * xyz, v) return v + q.w*t + cross(xyz, t) } @@ -1832,7 +1832,7 @@ dquatFromDmat4 :: proc "c" (m: dmat4) -> (q: dquat) { @(require_results) dquatMulDvec3 :: proc "c" (q: dquat, v: dvec3) -> dvec3 { xyz := dvec3{q.x, q.y, q.z} - t := cross(xyz, v) + t := cross(2.0 * xyz, v) return v + q.w*t + cross(xyz, t) }