ref: f64250f9c3b1376064cd214c36064044c98b117e
dir: /r_misc.c/
#include "quakedef.h" /* =============== R_CheckVariables =============== */ void R_CheckVariables (void) { static float oldbright; if (r_fullbright.value != oldbright) { oldbright = r_fullbright.value; D_FlushCaches (); // so all lighting changes } } /* =================== R_TransformFrustum =================== */ void R_TransformFrustum(view_t *view) { int i; vec3_t v, v2; for (i=0 ; i<4 ; i++) { v[0] = screenedge[i].normal[2]; v[1] = -screenedge[i].normal[0]; v[2] = screenedge[i].normal[1]; v2[0] = v[1]*view->right[0] + v[2]*view->up[0] + v[0]*view->pn[0]; v2[1] = v[1]*view->right[1] + v[2]*view->up[1] + v[0]*view->pn[1]; v2[2] = v[1]*view->right[2] + v[2]*view->up[2] + v[0]*view->pn[2]; VectorCopy(v2, view->clipplanes[i].normal); view->clipplanes[i].dist = DotProduct(view->modelorg, v2); } } /* =============== R_SetUpFrustumIndexes =============== */ static void R_SetUpFrustumIndexes(view_t *v) { int i, j, *pindex; pindex = r_frustum_indexes; for (i=0 ; i<4 ; i++) { for (j=0 ; j<3 ; j++) { if (v->clipplanes[i].normal[j] < 0) { pindex[j] = j; pindex[j+3] = j+3; } else { pindex[j] = j+3; pindex[j+3] = j; } } // FIXME: do just once at start pfrustum_indexes[i] = pindex; pindex += 6; } } /* =============== R_SetupFrame =============== */ void R_SetupFrame (void) { int edgecount; vrect_t vrect; float w, h; // don't allow cheats in multiplayer if (cl.maxclients > 1) { setcvar ("r_fullbright", "0"); setcvar ("r_ambient", "0"); } if (r_numsurfs.value) { if ((surface_p - surfaces) > r_maxsurfsseen) r_maxsurfsseen = surface_p - surfaces; Con_Printf (va("Used %zd of %zd surfs; %d max\n", surface_p - surfaces, surf_max - surfaces, r_maxsurfsseen)); } if (r_numedges.value) { edgecount = edge_p - r_edges; if (edgecount > r_maxedgesseen) r_maxedgesseen = edgecount; Con_Printf ("Used %d of %d edges; %d max\n", edgecount, r_numallocatededges, r_maxedgesseen); } r_refdef.ambientlight[0] = max(0, r_ambient.value); r_refdef.ambientlight[1] = max(0, r_ambient.value); r_refdef.ambientlight[2] = max(0, r_ambient.value); R_CheckVariables (); R_AnimateLight (); r_framecount++; /* debugging r_refdef.view.org[0]= 80; r_refdef.view.org[1]= 64; r_refdef.view.org[2]= 40; r_refdef.view.angles[0]= 0; r_refdef.view.angles[1]= 46.763641357; r_refdef.view.angles[2]= 0; */ // build the transformation matrix for the given view angles VectorCopy(r_refdef.view.org, r_refdef.view.modelorg); AngleVectors(r_refdef.view.angles, r_refdef.view.pn, r_refdef.view.right, r_refdef.view.up); // current viewleaf r_oldviewleaf = r_viewleaf; r_viewleaf = Mod_PointInLeaf(r_refdef.view.org, cl.worldmodel); r_dowarpold = r_dowarp; r_dowarp = r_waterwarp.value && (r_viewleaf->contents <= CONTENTS_WATER); if ((r_dowarp != r_dowarpold) || r_viewchanged || lcd_x.value) { if (r_dowarp) { if ((vid.width <= vid.maxwarpwidth) && (vid.height <= vid.maxwarpheight)) { vrect.x = 0; vrect.y = 0; vrect.width = vid.width; vrect.height = vid.height; R_ViewChanged (&vrect, sb_lines, vid.aspect); } else { w = vid.width; h = vid.height; if (w > vid.maxwarpwidth) { h *= (float)vid.maxwarpwidth / w; w = vid.maxwarpwidth; } if (h > vid.maxwarpheight) { h = vid.maxwarpheight; w *= (float)vid.maxwarpheight / h; } vrect.x = 0; vrect.y = 0; vrect.width = (int)w; vrect.height = (int)h; R_ViewChanged (&vrect, (int)((float)sb_lines * (h/(float)vid.height)), vid.aspect * (h / w) * ((float)vid.width / (float)vid.height)); } } else { vrect.x = 0; vrect.y = 0; vrect.width = vid.width; vrect.height = vid.height; R_ViewChanged (&vrect, sb_lines, vid.aspect); } r_viewchanged = false; } r_cache_thrash = false; R_TransformFrustum(&r_refdef.view); // start off with just the four screen edge clip planes R_SetSkyFrame(); R_SetUpFrustumIndexes(&r_refdef.view); D_SetupFrame(); }