blob: 5d6e39736fe122f5998ae94bb48b769bb875760c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
[require]
GLSL >= 1.40
[fragment shader]
#version 140
#extension GL_ARB_fragment_coord_conventions : require
layout(origin_upper_left) in vec4 gl_FragCoord;
out vec4 sk_FragColor;
uniform vec4 uellipse_Stage1;
flat in vec4 vcolor_Stage0;
void main() {
vec4 outputColor_Stage0;
{
outputColor_Stage0 = vcolor_Stage0;
}
vec4 output_Stage1;
{
vec2 d = gl_FragCoord.xy - uellipse_Stage1.xy;
vec2 Z = d * uellipse_Stage1.zw;
float implicit = dot(Z, d) - 1.0;
float grad_dot = 4.0 * dot(Z, Z);
{
grad_dot = max(grad_dot, 1.1754999560161448e-38);
}
float approx_dist = implicit * inversesqrt(grad_dot);
float alpha;
{
alpha = approx_dist > 0.0 ? 0.0 : 1.0;
}
output_Stage1 = vec4(alpha);
}
{
sk_FragColor = outputColor_Stage0 * output_Stage1;
}
}
[vertex shader]
#version 140
uniform vec4 sk_RTAdjust;
in vec2 position;
in vec4 color;
flat out vec4 vcolor_Stage0;
void main() {
vcolor_Stage0 = color;
gl_Position = vec4(position.x, position.y, 0.0, 1.0);
gl_Position = vec4(gl_Position.xy * sk_RTAdjust.xz + gl_Position.ww * sk_RTAdjust.yw, 0.0, gl_Position.w);
}
|
