space-wizards/RobustToolbox
1
0
Fork 0
mirror of https://github.com/space-wizards/RobustToolbox.git synced 2026-02-15 03:30:53 +01:00
Code Issues Packages Projects Releases Wiki Activity

Make outline corners smoother.

Browse Source
This commit is contained in:
Pieter-Jan Briers
2019-07-06 22:38:58 +02:00
parent 981bbc61ee
commit 2a6696f7e3
1 changed files with 16 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
Resources/Shaders/outline.swsl
View File

@@ -35,8 +35,6 @@ uniform float outline_width = 2.0;
uniform vec4 outline_color=vec4(1,0,0,0.33);
void fragment() {
vec4 col = texture(TEXTURE, UV);
vec2 ps = TEXTURE_PIXEL_SIZE;
float a;
@@ -47,17 +45,33 @@ void fragment() {
maxa = max(a, maxa);
mina = min(a, mina);
a = texture(TEXTURE, UV + vec2(-outline_width, -outline_width)*ps/2).a;
maxa = max(a, maxa);
mina = min(a, mina);
a = texture(TEXTURE, UV + vec2(0, outline_width)*ps).a;
maxa = max(a, maxa);
mina = min(a, mina);
a = texture(TEXTURE, UV + vec2(outline_width, -outline_width)*ps/2).a;
maxa = max(a, maxa);
mina = min(a, mina);
a = texture(TEXTURE, UV + vec2(-outline_width,0)*ps).a;
maxa = max(a, maxa);
mina = min(a, mina);
a = texture(TEXTURE, UV + vec2(-outline_width, outline_width)*ps/2).a;
maxa = max(a, maxa);
mina = min(a, mina);
a = texture(TEXTURE, UV + vec2(outline_width, 0)*ps).a;
maxa = max(a, maxa);
mina = min(a, mina);
a = texture(TEXTURE, UV + vec2(outline_width, outline_width)*ps/2).a;
maxa = max(a, maxa);
mina = min(a, mina);
COLOR = mix(col, outline_color, maxa-col.a);
}