From 0a29d51639e5edba82f3a29361eed9dbd60d7b17 Mon Sep 17 00:00:00 2001
From: treeform <starplant@gmail.com>
Date: Tue, 6 Jul 2021 08:50:39 -0700
Subject: [PATCH] Add mat3 * vec3.
---
src/vmath.nim | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/src/vmath.nim b/src/vmath.nim
index dfdfb8e..37edb63 100644
--- a/src/vmath.nim
+++ b/src/vmath.nim
@@ -903,6 +903,13 @@ proc `*`*[T](a: GMat3[T], b: GVec2[T]): GVec2[T] =
a[0, 1] * b.x + a[1, 1] * b.y + a[2, 1]
)
+proc `*`*[T](a: GMat3[T], b: GVec3[T]): GVec3[T] =
+ gvec3[T](
+ a[0, 0] * b.x + a[1, 0] * b.y + a[2, 0] * b.z,
+ a[0, 1] * b.x + a[1, 1] * b.y + a[2, 1] * b.z,
+ a[0, 2] * b.x + a[1, 2] * b.y + a[2, 2] * b.z,
+ )
+
proc `*`*[T](a, b: GMat4[T]): GMat4[T] =
let
a00 = a[0, 0]