blob: 1b1d3b4013a3d1b628a904a61318b9176db37c6b (
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
|
#version 440
layout(location = 0) in vec4 vCoord;
layout(location = 1) in vec2 tCoord;
layout(location = 0) out vec3 sampleNearLeft;
layout(location = 1) out vec3 sampleNearRight;
layout(std140, binding = 0) uniform buf {
#if QSHADER_VIEW_COUNT >= 2
mat4 matrix[QSHADER_VIEW_COUNT];
#else
mat4 matrix;
#endif
vec2 textureScale;
vec4 color;
float alphaMin;
float alphaMax;
// up to this point it must match distancefieldtext
float fontScale;
vec4 vecDelta;
};
void main()
{
vec2 sampleCoord = tCoord * textureScale;
#if QSHADER_VIEW_COUNT >= 2
gl_Position = matrix[gl_ViewIndex] * vCoord;
#else
gl_Position = matrix * vCoord;
#endif
// Calculate neighbor pixel position in item space.
vec3 wDelta = gl_Position.w * vecDelta.xyw;
vec3 nearLeft = vCoord.xyw - 0.25 * wDelta;
vec3 nearRight = vCoord.xyw + 0.25 * wDelta;
// Calculate neighbor texture coordinate.
vec2 scale = textureScale / fontScale;
vec2 base = sampleCoord - scale * vCoord.xy;
sampleNearLeft = vec3(base * nearLeft.z + scale * nearLeft.xy, nearLeft.z);
sampleNearRight = vec3(base * nearRight.z + scale * nearRight.xy, nearRight.z);
}
|
