Lines Matching defs:VP
133 GLfloat VP[3]; /* vector from vertex to light pos */
139 COPY_3V(VP, light->_VP_inf_norm);
146 /* VP = vector from vertex pos to light[i].pos */
147 SUB_3V(VP, light->_Position, vertex);
148 /* d = length(VP) */
149 d = (GLfloat) LEN_3FV( VP );
151 /* normalize VP */
153 SELF_SCALE_SCALAR_3V(VP, invd);
162 GLfloat PV_dot_dir = - DOT3(VP, light->_NormSpotDirection);
177 n_dot_VP = DOT3( normal, VP );
199 SUB_3V(VP, VP, v);
200 NORMALIZE_3FV(VP);
201 h = VP;
204 ACC_3V(VP, ctx->_EyeZDir);
205 NORMALIZE_3FV(VP);
206 h = VP;
