attribute vec3 aVertexPosition;
attribute vec3 aVertexNormal;
attribute vec3 aVertexNormalOld;
attribute vec3 aVertexPositionOld;

uniform mat4 prMvMatrix;
uniform mat3 normMatrix;
uniform vec3 directLightDir;
uniform float morphingState;

varying float vLightWeight;

void main(void)
{
	vLightWeight = max(dot(normMatrix * mix(aVertexNormalOld, aVertexNormal, morphingState), directLightDir), 0.0);
	gl_Position = prMvMatrix* vec4(mix(aVertexPositionOld,aVertexPosition,morphingState),1.0);
}