Format shaders (#639)

vtm/resources/assets/shaders/hairline.glsl

@@ -11,8 +11,8 @@ uniform vec2 u_screen;
 attribute vec2 a_pos;
 varying vec4 v_pos;
 varying vec2 s_pos;
-void
-main(){
+
+void main() {
   v_pos = u_mvp * vec4(a_pos, 0.0, 1.0);
   s_pos = v_pos.xy / v_pos.w;
   gl_Position = v_pos;
@@ -28,8 +28,8 @@ uniform float u_width;
 uniform vec2 u_screen;
 varying vec4 v_pos;
 varying vec2 s_pos;
-void
-main(){
+
+void main() {
   vec2 pos = (v_pos.xy) / v_pos.w * u_screen;
   
   float l = length(gl_FragCoord.xy - u_screen - pos.xy);