16 lines
283 B
GLSL
16 lines
283 B
GLSL
|
attribute vec4 vertexCoord;
|
||
|
|
|
||
|
|
uniform mat4 matrix;
|
||
|
|
uniform vec4 rect;
|
||
|
|
|
||
|
|
varying float colorIndex;
|
||
|
|
|
||
|
|
void main()
|
||
|
|
{
|
||
|
|
highp vec2 l = vertexCoord.xy - rect.xy;
|
||
|
|
highp vec2 size = rect.zw;
|
||
|
|
|
||
|
|
colorIndex = dot( l, size ) / dot( size, size );
|
||
|
|
gl_Position = matrix * vertexCoord;
|
||
|
|
}
|