17 lines
290 B
GLSL
17 lines
290 B
GLSL
|
uniform sampler2D palette;
|
||
|
|
uniform lowp float opacity;
|
||
|
|
|
||
|
|
uniform highp vec2 radius;
|
||
|
|
|
||
|
|
varying highp vec2 coord;
|
||
|
|
|
||
|
|
lowp vec4 colorAt( highp float value )
|
||
|
|
{
|
||
|
|
return texture2D( palette, vec2( value, 0.0 ) );
|
||
|
|
}
|
||
|
|
|
||
|
|
void main()
|
||
|
|
{
|
||
|
|
gl_FragColor = colorAt( length( coord / radius ) ) * opacity;
|
||
|
|
}
|