uniform mat4 u_mat4_mdv;
uniform mat4 u_mat4_prj;
uniform mat4 u_mat4_ads;

attribute vec3 a_v3_nor;
attribute vec3 a_v3_vtx;

varying vec3 vEyeNormal;
varying vec3 vPosition3;

void main()
{
	vEyeNormal = vec3(u_mat4_mdv * vec4(a_v3_nor, 0.0));
	
	vec4 vPosition4 = u_mat4_mdv * vec4(a_v3_vtx.x, a_v3_vtx.y, a_v3_vtx.z, 1.0);
	vPosition3 = vPosition4.xyz / vPosition4.w;

	gl_Position  = u_mat4_prj * vPosition4;
}