38 lines
1.1 KiB
Text
38 lines
1.1 KiB
Text
|
shader_type canvas_item;
|
||
|
|
render_mode blend_premul_alpha;
|
||
|
|
|
||
|
|
uniform float radius = 5.0;
|
||
|
|
uniform float amount = 0.25;
|
||
|
|
|
||
|
|
void fragment() {
|
||
|
|
float r = radius;
|
||
|
|
vec2 ps = TEXTURE_PIXEL_SIZE;
|
||
|
|
vec4 col = texture(TEXTURE, UV);
|
||
|
|
vec4 glow = col;
|
||
|
|
|
||
|
|
glow += texture(TEXTURE, UV + vec2(-r, -r) * ps);
|
||
|
|
glow += texture(TEXTURE, UV + vec2(-r, 0.0) * ps);
|
||
|
|
glow += texture(TEXTURE, UV + vec2(-r, r) * ps);
|
||
|
|
glow += texture(TEXTURE, UV + vec2(0.0, -r) * ps);
|
||
|
|
glow += texture(TEXTURE, UV + vec2(0.0, r) * ps);
|
||
|
|
glow += texture(TEXTURE, UV + vec2(r, -r) * ps);
|
||
|
|
glow += texture(TEXTURE, UV + vec2(r, 0.0) * ps);
|
||
|
|
glow += texture(TEXTURE, UV + vec2(r, r) * ps);
|
||
|
|
|
||
|
|
r *= 2.0;
|
||
|
|
glow += texture(TEXTURE, UV + vec2(-r, -r) * ps);
|
||
|
|
glow += texture(TEXTURE, UV + vec2(-r, 0.0) * ps);
|
||
|
|
glow += texture(TEXTURE, UV + vec2(-r, r) * ps);
|
||
|
|
glow += texture(TEXTURE, UV + vec2(0.0, -r) * ps);
|
||
|
|
glow += texture(TEXTURE, UV + vec2(0.0, r) * ps);
|
||
|
|
glow += texture(TEXTURE, UV + vec2(r, -r) * ps);
|
||
|
|
glow += texture(TEXTURE, UV + vec2(r, 0.0) * ps);
|
||
|
|
glow += texture(TEXTURE, UV + vec2(r, r) * ps);
|
||
|
|
|
||
|
|
glow /= 17.0;
|
||
|
|
glow *= amount;
|
||
|
|
col.rgb *= col.a;
|
||
|
|
|
||
|
|
COLOR = glow + col;
|
||
|
|
}
|