From 69d8af71d6882e801496fcd7ed971081c0b720d8 Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Sun, 8 Dec 2019 21:29:29 +0800
Subject: *misc

---
 src/math/math.h | 2 ++
 src/math/vec4.c | 7 +++++++
 2 files changed, 9 insertions(+)

(limited to 'src/math')

diff --git a/src/math/math.h b/src/math/math.h
index 35219a3..1db7df7 100644
--- a/src/math/math.h
+++ b/src/math/math.h
@@ -182,6 +182,8 @@ void vec4_dividew(Vec4* v, Vec3* out);
 void vec4_tostring(Vec4* v, char buf[]);
 void vec4_print(Vec4* v);
 
+void vec4_lerp(Vec4* a, Vec4* b, float t, Vec4* out);
+
 /************************************************************************/
 /* Matrix                                                               */
 /************************************************************************/
diff --git a/src/math/vec4.c b/src/math/vec4.c
index ca64820..b79adca 100644
--- a/src/math/vec4.c
+++ b/src/math/vec4.c
@@ -21,4 +21,11 @@ void vec4_tostring(Vec4* v, char buf[]) {
 void vec4_print(Vec4* v) {
 	vec4_tostring(v, printbuffer);
 	printf("\n%s\n", printbuffer);
+}
+
+void vec4_lerp(Vec4* a, Vec4* b, float t, Vec4* out) {
+	out->x = lerp(a->x, b->x, t);
+	out->y = lerp(a->y, b->y, t);
+	out->z = lerp(a->z, b->z, t);
+	out->w = lerp(a->w, b->w, t);
 }
\ No newline at end of file
-- 
cgit v1.1-26-g67d0