From c32104b7caa0443e2e2b33922a8a6495fdbdef5b Mon Sep 17 00:00:00 2001
From: Tony031218 <975062472@qq.com>
Date: Tue, 2 Feb 2021 16:53:08 +0800
Subject: [PATCH] revert changes which is in #1329

---
 manimlib/shaders/quadratic_bezier_fill/frag.glsl   | 2 +-
 manimlib/shaders/quadratic_bezier_stroke/geom.glsl | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/manimlib/shaders/quadratic_bezier_fill/frag.glsl b/manimlib/shaders/quadratic_bezier_fill/frag.glsl
index b2a1c82a..c16c167e 100644
--- a/manimlib/shaders/quadratic_bezier_fill/frag.glsl
+++ b/manimlib/shaders/quadratic_bezier_fill/frag.glsl
@@ -51,7 +51,7 @@ float sdf(){
     float sgn = orientation * sign(v2);
     float Fp = (p.x * p.x - p.y);
     if(sgn * Fp < 0){
-        return 0.0;
+        return 0;
     }else{
         return min_dist_to_curve(uv_coords, uv_b2, bezier_degree);
     }
diff --git a/manimlib/shaders/quadratic_bezier_stroke/geom.glsl b/manimlib/shaders/quadratic_bezier_stroke/geom.glsl
index f9cfe303..b878e295 100644
--- a/manimlib/shaders/quadratic_bezier_stroke/geom.glsl
+++ b/manimlib/shaders/quadratic_bezier_stroke/geom.glsl
@@ -66,7 +66,7 @@ void flatten_points(in vec3[3] points, out vec2[3] flat_points){
 float angle_between_vectors(vec2 v1, vec2 v2){
     float v1_norm = length(v1);
     float v2_norm = length(v2);
-    if(v1_norm == 0 || v2_norm == 0) return 0.0;
+    if(v1_norm == 0 || v2_norm == 0) return 0;
     float dp = dot(v1, v2) / (v1_norm * v2_norm);
     float angle = acos(clamp(dp, -1.0, 1.0));
     float sn = sign(cross2d(v1, v2));