blob: 20e5b4db0d523d658ba34beb754b64dd712dd276 (
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
|
<?xml version="1.0" encoding="UTF-8" ?>
<Effect>
<MetaData>
<Property name="red" formalName="Red Amount" min="0" max="2.0" default="1.0" description="Amount of Red"/>
<Property name="green" formalName="Green Amount" min="0" max="2.0" default="1.0" description="Amount of Green"/>
<Property name="blue" formalName="Blue Amount" min="0" max="2.0" default="1.0" description="Amount of Blue"/>
<Property name="strength_gray" formalName="Saturation" min="-1" max="1" default="0.0" description="Strength of Color"/>
</MetaData>
<Shaders>
<Shared></Shared>
<VertexShaderShared></VertexShaderShared>
<FragmentShaderShared></FragmentShaderShared>
<Shader name="main">
<VertexShader></VertexShader>
<FragmentShader><![CDATA[
vec4 desaturate(vec3 color, float strength)
{
vec3 lum = vec3(0.299, 0.587, 0.114);
// lum values based on: ITU-R BT.601
vec3 gray = vec3(dot(lum, color));
return vec4(mix(color, gray, -strength), 1.0);
}
void frag()
{
vec4 sourceColor = texture2D_0(TexCoord);
vec4 basecolor = vec4(sourceColor.r*red,sourceColor.g*green,sourceColor.b*blue,sourceColor.a);
gl_FragColor = desaturate(basecolor.rgb,strength_gray);
}
]]></FragmentShader>
</Shader>
</Shaders>
<Passes>
<Pass shader="main" input="[source]" output="[dest]"/>
</Passes>
</Effect>
|
