Lines Matching defs:VP
158 GLfloat VP[3]; /* vector from vertex to light pos */
164 COPY_3V(VP, light->_VP_inf_norm);
171 /* VP = vector from vertex pos to light[i].pos */
172 SUB_3V(VP, light->_Position, vertex);
173 /* d = length(VP) */
174 d = (GLfloat) LEN_3FV( VP );
176 /* normalize VP */
178 SELF_SCALE_SCALAR_3V(VP, invd);
187 GLfloat PV_dot_dir = - DOT3(VP, light->_NormSpotDirection);
202 n_dot_VP = DOT3( normal, VP );
224 SUB_3V(VP, VP, v);
225 NORMALIZE_3FV(VP);
226 h = VP;
229 ACC_3V(VP, ctx->_EyeZDir);
230 NORMALIZE_3FV(VP);
231 h = VP;