sunWithShadow_vs.glsl

#version 400            
uniform mat4 PVM;
uniform mat4 M;
uniform mat4 Me;
uniform mat4 Mm;

uniform mat4 V;

uniform float time;
uniform float slider;

in vec3 pos_attrib; //in object space
in vec2 tex_coord_attrib;
in vec3 normal_attrib; //in object space

out vec2 tex_coord;
out vec3 normal; 
out vec3 p;
out vec3 pm;
out vec3 pe; 
out vec3 eye;

const vec4 origin = vec4(0.0, 0.0, 0.0, 1.0); //w = 1 becase this is a point

void main(void)
{
  /* vec3 d = vec3(0.0);
	d.z += 0.03*sin(10.0*pos_attrib.x + 5.0*time);
	d.y += 0.01*sin(10.0*pos_attrib.x + 2.0*time);*/

   //Compute clip-space vertex position
   gl_Position = PVM*vec4(pos_attrib, 1.0);     //w = 1 becase this is a point

   tex_coord = tex_coord_attrib;

   //Compute world-space normal position
   normal = vec3(M*vec4(normal_attrib, 0.0));   //w = 0 becase this is a vector

   //Compute world-space vertex position
   p = vec3(M*vec4(pos_attrib, 1.0));           //w = 1 becase this is a point
   pe = vec3(Me*vec4(-0.065,0.0,0.0, 1.0));   
   pm = vec3(Mm*vec4(0.0,0.0,0.0, 1.0));   

   //Compute world-space eye position
   eye = vec3(inverse(V)*origin);
}