attribute float flipped;
attribute float strength;
attribute vec4 tint;

varying float vflipped;
varying float vstrength;

void main() {
   gl_TexCoord[0] = gl_MultiTexCoord0;
   gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
   vflipped = flipped;
   vstrength = strength;
   gl_FrontColor = tint;
}
