13    vec4 vertex_clip_space;
 
   20    if(glupIsEnabled(GLUP_VERTEX_COLORS)) {
 
   21        VertexOut.color = color_in;
 
   23    if(glupIsEnabled(GLUP_TEXTURING)) {
 
   24        if(glupIsEnabled(GLUP_INDIRECT_TEXTURING)) {
 
   25            VertexOut.tex_coord = tex_coord_in;
 
   28                GLUP.texture_matrix * tex_coord_in;
 
   31    gl_Position = GLUP.modelviewprojection_matrix * vertex_in;
 
vecng< 4, Numeric::float64 > vec4
Represents points and vectors in 4d.