blob: 2b200d005730357dba0073084775945f2d42b7ab (
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
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
<?xml version="1.0" encoding="UTF-8" ?>
<Effect>
<MetaData>
<!--Smooth, unchanging areas of the image are turned black, while areas of the image with sharp color changes are brightened to highlight the 'edges' in the image.-->
<Property name="amount" formalName="Amount" min="0" max="1" default="1" description="0 = no effect\n1 = maximum effect"/>
</MetaData>
<Shaders>
<Shared>
////////////////////////////////////////////////////////////
// vert / frag shaders.
varying vec4 TexCoordBLL; //Bottom Left and Bottom Tap
varying vec4 TexCoordTLT; //Top Left and Top Tap
varying vec4 TexCoordTRR; //Upper Right and Right Tap
varying vec4 TexCoordBRB; //Bottom Right and Bottom Tap
</Shared>
<Shader>
<VertexShader>
void vert()
{
//Pass Through the Texture Taps
float deltax = 1.0/Texture0Info.x;
float deltay = 1.0/Texture0Info.y;
//Bottom Left
TexCoordBLL.x = TexCoord.s - deltax;
TexCoordBLL.y = TexCoord.t - deltay;
//Left
TexCoordBLL.z = TexCoord.s - deltax;
TexCoordBLL.w = TexCoord.t;
//Top Left
TexCoordTLT.x = TexCoord.s - deltax;
TexCoordTLT.y = TexCoord.t + deltay;
//Top
TexCoordTLT.z = TexCoord.s;
TexCoordTLT.w = TexCoord.t + deltay;
//Upper Right
TexCoordTRR.x = TexCoord.s + deltax;
TexCoordTRR.y = TexCoord.t + deltay;
//Right
TexCoordTRR.z = TexCoord.s + deltax;
TexCoordTRR.w = TexCoord.t;
//Bottom Right
TexCoordBRB.x = TexCoord.s + deltax;
TexCoordBRB.y = TexCoord.t - deltay;
//Bottom
TexCoordBRB.z = TexCoord.s;
TexCoordBRB.w = TexCoord.t - deltay;
}
</VertexShader>
<FragmentShader>
void frag (void)
{
vec4 centerTap = texture2D_0(TexCoord);
vec4 edgeTap = texture2D_0(TexCoordBLL.xy) +
texture2D_0(TexCoordBLL.zw) +
texture2D_0(TexCoordTLT.xy) +
texture2D_0(TexCoordTLT.zw) +
texture2D_0(TexCoordTRR.xy) +
texture2D_0(TexCoordTRR.zw) +
texture2D_0(TexCoordBRB.xy) +
texture2D_0(TexCoordBRB.zw);
vec3 edgeDetect = 8.0*(centerTap.rgb + -0.125*edgeTap.rgb);
edgeDetect = clamp(edgeDetect, 0.0, centerTap.a);
colorOutput(vec4(mix(centerTap.rgb, edgeDetect, amount), centerTap.a));
}
</FragmentShader>
</Shader>
</Shaders>
</Effect>
|
