// I do the drawing like this
// for each object
shader.On();
glPushMatrix();
glMultMatrix(objects_transform_matrix);
Graphics->Primitive(mesh); // a simple draw routine, in this shaders case these would be edge lists
glPopMatrix();
shader.Off();

// this vertex glsl shader is one I've modified from the web. I'm trying to account for the
//   usage of glMultMatrix as most examples are done with static scenes
//  The light_position is in world space, so, all I should have to do it tranaform the 
//   vertex into world space as well, but not projecting it until we send it to be rendered.
uniform vec4 light_position;
uniform float infinity;

void main(void){
	vec4 vertex = gl_ModelViewMatrix * gl_Vertex;
	vec3 light_direction = normalize(light_position.xyz - vertex.xyz);
	vec4 p,q;
	p = gl_ProjectionMatrix * (vec4(-light_direction, 0.0) * infinity);
	q = ftransform();

	float ndl = dot(gl_NormalMatrix * gl_Normal, light_direction.xyz);
	if ( ndl >= 0.0 ) p = q;

	gl_Position = p;
}