| author | František Kučera <franta-hg@frantovo.cz> |
| Sat, 23 Dec 2023 23:10:41 +0100 | |
| branch | v_0 |
| changeset 25 | 717653cedc4a |
| parent 20 | 0899e966993e |
| child 28 | 4cbd9c0beb4c |
| permissions | -rw-r--r-- |
| 0 | 1 |
#version 330 core |
2 |
||
|
2
3faef2f5128e
better GLSL variable names
František Kučera <franta-hg@frantovo.cz>
parents:
0
diff
changeset
|
3 |
uniform sampler2D uTexture; |
|
3faef2f5128e
better GLSL variable names
František Kučera <franta-hg@frantovo.cz>
parents:
0
diff
changeset
|
4 |
in vec2 vTextureXY; |
|
14
ceeb36fad818
transparency/alpha: simple binary transparent/opaque, no blending, just discard some fragments
František Kučera <franta-hg@frantovo.cz>
parents:
11
diff
changeset
|
5 |
out vec4 fColor; |
| 0 | 6 |
|
|
14
ceeb36fad818
transparency/alpha: simple binary transparent/opaque, no blending, just discard some fragments
František Kučera <franta-hg@frantovo.cz>
parents:
11
diff
changeset
|
7 |
vec4 grayscale(vec4 original) {
|
|
4
9aba96f0b001
fragment shader: add grayscale() function
František Kučera <franta-hg@frantovo.cz>
parents:
2
diff
changeset
|
8 |
const vec3 luminanceWeighting = vec3(0.2125, 0.7154, 0.0721); |
|
14
ceeb36fad818
transparency/alpha: simple binary transparent/opaque, no blending, just discard some fragments
František Kučera <franta-hg@frantovo.cz>
parents:
11
diff
changeset
|
9 |
float luminance = dot(original.rgb, luminanceWeighting); |
|
ceeb36fad818
transparency/alpha: simple binary transparent/opaque, no blending, just discard some fragments
František Kučera <franta-hg@frantovo.cz>
parents:
11
diff
changeset
|
10 |
return vec4(vec3(luminance), original.a); |
|
4
9aba96f0b001
fragment shader: add grayscale() function
František Kučera <franta-hg@frantovo.cz>
parents:
2
diff
changeset
|
11 |
} |
|
9aba96f0b001
fragment shader: add grayscale() function
František Kučera <franta-hg@frantovo.cz>
parents:
2
diff
changeset
|
12 |
|
|
18
c4384f43c739
new shader: phosphor-basic.frag
František Kučera <franta-hg@frantovo.cz>
parents:
15
diff
changeset
|
13 |
void main() {
|
|
14
ceeb36fad818
transparency/alpha: simple binary transparent/opaque, no blending, just discard some fragments
František Kučera <franta-hg@frantovo.cz>
parents:
11
diff
changeset
|
14 |
fColor = texture(uTexture, vTextureXY).rgba; |
|
4
9aba96f0b001
fragment shader: add grayscale() function
František Kučera <franta-hg@frantovo.cz>
parents:
2
diff
changeset
|
15 |
// fColor = grayscale(fColor); |
|
14
ceeb36fad818
transparency/alpha: simple binary transparent/opaque, no blending, just discard some fragments
František Kučera <franta-hg@frantovo.cz>
parents:
11
diff
changeset
|
16 |
// fColor *= vec4(0.8, 1., 0.2, 1.); |
|
ceeb36fad818
transparency/alpha: simple binary transparent/opaque, no blending, just discard some fragments
František Kučera <franta-hg@frantovo.cz>
parents:
11
diff
changeset
|
17 |
|
|
15
1eb7cfefbeea
transparency/alpha: blending
František Kučera <franta-hg@frantovo.cz>
parents:
14
diff
changeset
|
18 |
// if (fColor.a < 0.1) discard; |
|
20
0899e966993e
process all X11 event waiting in the queue in the same cycle
František Kučera <franta-hg@frantovo.cz>
parents:
18
diff
changeset
|
19 |
// Pretty, pretty, pretty, pretty, Peggy Sue |
| 0 | 20 |
} |