Lines Matching defs:VP
164 GLfloat VP[3]; /* vector from vertex to light pos */
170 COPY_3V(VP, light->_VP_inf_norm);
177 /* VP = vector from vertex pos to light[i].pos */
178 SUB_3V(VP, light->_Position, vertex);
179 /* d = length(VP) */
180 d = (GLfloat) LEN_3FV( VP );
182 /* normalize VP */
184 SELF_SCALE_SCALAR_3V(VP, invd);
193 GLfloat PV_dot_dir = - DOT3(VP, light->_NormSpotDirection);
208 n_dot_VP = DOT3( normal, VP );
230 SUB_3V(VP, VP, v);
231 NORMALIZE_3FV(VP);
232 h = VP;
235 ACC_3V(VP, ctx->_EyeZDir);
236 NORMALIZE_3FV(VP);
237 h = VP;