fffb8897b9
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@20 fc73d0e0-1445-4013-8a0c-d673dee63da5
935 lines
24 KiB
C
935 lines
24 KiB
C
/*
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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// r_alias.c: routines for setting up to draw alias models
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//changes include stvertexes now being seperatly number from the triangles.
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//this allows q2 models to be supported.
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//lerping is also available.
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//future aims include better skin management.
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//the asm code cannot handle alias models anymore.
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#ifndef NOASM
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#define NOASM
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#endif
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#include "quakedef.h"
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#include "r_local.h"
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#include "d_local.h" // FIXME: shouldn't be needed (is needed for patch
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// right now, but that should move)
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#define Q2RF_DEPTHHACK 16 // for view weapon Z crunching
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#define LIGHT_MIN 5 // lowest light value we'll allow, to avoid the
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// need for inner-loop light clamping
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mtriangle_t *ptriangles;
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affinetridesc_t r_affinetridesc;
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void * acolormap; // FIXME: should go away
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dtrivertx_t *r_apoldverts;
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dtrivertx_t *r_apnewverts;
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vec3_t r_afrntlerp;
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vec3_t r_abacklerp;
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vec3_t r_amovelerp;
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// TODO: these probably will go away with optimized rasterization
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mmdl_t *pmdl;
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vec3_t r_plightvec;
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int r_ambientlight;
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float r_shadelight;
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aliashdr_t *paliashdr;
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finalvert_t *pfinalverts;
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auxvert_t *pauxverts;
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static float ziscale;
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static model_t *pmodel;
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extern int cl_playerindex;
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static vec3_t alias_forward, alias_right, alias_up;
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static maliasskindesc_t *pskindesc;
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int r_amodels_drawn;
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int a_skinwidth;
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int r_anumverts;
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float aliastransform[3][4];
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typedef struct {
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int index0;
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int index1;
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} aedge_t;
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static aedge_t aedges[12] = {
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{0, 1}, {1, 2}, {2, 3}, {3, 0},
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{4, 5}, {5, 6}, {6, 7}, {7, 4},
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{0, 5}, {1, 4}, {2, 7}, {3, 6}
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};
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#define NUMVERTEXNORMALS 162
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extern float r_avertexnormals[NUMVERTEXNORMALS][3];
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void R_AliasTransformAndProjectFinalVerts (finalvert_t *fv);//,
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//mstvert_t *pstverts);
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void R_AliasSetUpTransform (int trivial_accept);
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void R_AliasTransformVector (vec3_t in, vec3_t out);
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void R_AliasTransformFinalVert (finalvert_t *fv, auxvert_t *av,
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dtrivertx_t *pnewverts, dtrivertx_t *poldverts);//, mstvert_t *pstverts);
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void R_AliasProjectFinalVert (finalvert_t *fv, auxvert_t *av);
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/*
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================
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R_AliasCheckBBox
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================
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*/
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qboolean R_AliasCheckBBox (void)
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{
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int i, flags, nframe, oframe, numv;
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aliashdr_t *pahdr;
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float zi, basepts[8][3], v0, v1, frac;
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finalvert_t *pv0, *pv1, viewpts[16];
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auxvert_t *pa0, *pa1, viewaux[16];
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maliasframedesc_t *pnewframedesc, *poldframedesc;
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qboolean zclipped, zfullyclipped;
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unsigned anyclip, allclip;
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int minz;
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float a, b;
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vec3_t min, max;
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// expand, rotate, and translate points into worldspace
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currententity->trivial_accept = 0;
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pmodel = currententity->model;
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pahdr = SWMod_Extradata (pmodel);
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pmdl = (mmdl_t *)((qbyte *)pahdr + pahdr->model);
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R_AliasSetUpTransform (0);
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// construct the base bounding box for this frame
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nframe = currententity->frame;
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// TODO: don't repeat this check when drawing?
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if ((nframe >= pmdl->numframes) || (nframe < 0))
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{
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Con_DPrintf ("No such frame %d %s\n", nframe,
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pmodel->name);
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nframe = 0;
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}
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// construct the base bounding box for this frame
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oframe = currententity->frame;
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// TODO: don't repeat this check when drawing?
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if ((oframe >= pmdl->numframes) || (oframe < 0))
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{
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Con_DPrintf ("No such frame %d %s\n", oframe,
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pmodel->name);
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oframe = 0;
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}
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pnewframedesc = &pahdr->frames[nframe];
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poldframedesc = &pahdr->frames[oframe];
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for (i = 0; i < 3; i++) //choose the most outward of the two.
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{
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a = poldframedesc->scale_origin[i] + poldframedesc->bboxmin.v[i]*poldframedesc->scale[i];
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b = pnewframedesc->scale_origin[i] + pnewframedesc->bboxmin.v[i]*pnewframedesc->scale[i];
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min[i] = a>b?b:a;
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a = poldframedesc->scale_origin[i] + poldframedesc->bboxmax.v[i]*poldframedesc->scale[i];
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b = pnewframedesc->scale_origin[i] + pnewframedesc->bboxmax.v[i]*pnewframedesc->scale[i];
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max[i] = a>b?a:b;
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}
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// x worldspace coordinates
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basepts[0][0] = basepts[1][0] = basepts[2][0] = basepts[3][0] = min[0];
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basepts[4][0] = basepts[5][0] = basepts[6][0] = basepts[7][0] = max[0];
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// y worldspace coordinates
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basepts[0][1] = basepts[3][1] = basepts[5][1] = basepts[6][1] = min[1];
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basepts[1][1] = basepts[2][1] = basepts[4][1] = basepts[7][1] = max[1];
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// z worldspace coordinates
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basepts[0][2] = basepts[1][2] = basepts[4][2] = basepts[5][2] = min[2];
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basepts[2][2] = basepts[3][2] = basepts[6][2] = basepts[7][2] = max[2];
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zclipped = false;
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zfullyclipped = true;
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minz = 9999;
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for (i=0; i<8 ; i++)
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{
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R_AliasTransformVector (&basepts[i][0], &viewaux[i].fv[0]);
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if (viewaux[i].fv[2] < ALIAS_Z_CLIP_PLANE)
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{
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// we must clip points that are closer than the near clip plane
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viewpts[i].flags = ALIAS_Z_CLIP;
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zclipped = true;
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}
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else
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{
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if (viewaux[i].fv[2] < minz)
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minz = viewaux[i].fv[2];
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viewpts[i].flags = 0;
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zfullyclipped = false;
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}
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}
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if (zfullyclipped)
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{
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return false; // everything was near-z-clipped
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}
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numv = 8;
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if (zclipped)
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{
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// organize points by edges, use edges to get new points (possible trivial
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// reject)
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for (i=0 ; i<12 ; i++)
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{
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// edge endpoints
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pv0 = &viewpts[aedges[i].index0];
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pv1 = &viewpts[aedges[i].index1];
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pa0 = &viewaux[aedges[i].index0];
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pa1 = &viewaux[aedges[i].index1];
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// if one end is clipped and the other isn't, make a new point
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if (pv0->flags ^ pv1->flags)
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{
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frac = (ALIAS_Z_CLIP_PLANE - pa0->fv[2]) /
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(pa1->fv[2] - pa0->fv[2]);
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viewaux[numv].fv[0] = pa0->fv[0] +
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(pa1->fv[0] - pa0->fv[0]) * frac;
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viewaux[numv].fv[1] = pa0->fv[1] +
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(pa1->fv[1] - pa0->fv[1]) * frac;
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viewaux[numv].fv[2] = ALIAS_Z_CLIP_PLANE;
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viewpts[numv].flags = 0;
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numv++;
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}
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}
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}
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// project the vertices that remain after clipping
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anyclip = 0;
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allclip = ALIAS_XY_CLIP_MASK;
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// TODO: probably should do this loop in ASM, especially if we use floats
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for (i=0 ; i<numv ; i++)
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{
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// we don't need to bother with vertices that were z-clipped
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if (viewpts[i].flags & ALIAS_Z_CLIP)
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continue;
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zi = 1.0 / viewaux[i].fv[2];
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// FIXME: do with chop mode in ASM, or convert to float
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v0 = (viewaux[i].fv[0] * xscale * zi) + xcenter;
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v1 = (viewaux[i].fv[1] * yscale * zi) + ycenter;
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flags = 0;
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if (v0 < r_refdef.fvrectx)
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flags |= ALIAS_LEFT_CLIP;
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if (v1 < r_refdef.fvrecty)
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flags |= ALIAS_TOP_CLIP;
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if (v0 > r_refdef.fvrectright)
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flags |= ALIAS_RIGHT_CLIP;
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if (v1 > r_refdef.fvrectbottom)
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flags |= ALIAS_BOTTOM_CLIP;
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anyclip |= flags;
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allclip &= flags;
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}
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if (allclip)
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return false; // trivial reject off one side
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// currententity->trivial_accept = !anyclip & !zclipped;
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if (currententity->trivial_accept)
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{
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if (minz > (r_aliastransition + (pmdl->size * r_resfudge)))
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{
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// currententity->trivial_accept |= 2;
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}
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}
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return true;
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}
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/*
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================
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R_AliasTransformVector
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================
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*/
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void R_AliasTransformVector (vec3_t in, vec3_t out)
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{
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out[0] = DotProduct(in, aliastransform[0]) + aliastransform[0][3];
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out[1] = DotProduct(in, aliastransform[1]) + aliastransform[1][3];
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out[2] = DotProduct(in, aliastransform[2]) + aliastransform[2][3];
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}
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/*
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================
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R_AliasPreparePoints
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General clipped case
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================
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*/
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void R_AliasPreparePoints (void)
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{
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int i;
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mstvert_t *pstverts;
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finalvert_t *fv;
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auxvert_t *av;
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mtriangle_t *ptri;
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finalvert_t *pfv[3];
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r_anumverts = pmdl->numverts;
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fv = pfinalverts;
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av = pauxverts;
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#ifdef PEXT_TRANS
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if (currententity->alpha != 1)
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{
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Set_TransLevelF(currententity->alpha);
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}
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#endif
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for (i=0 ; i<r_anumverts ; i++, fv++, av++, r_apnewverts++, r_apoldverts++)
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{
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R_AliasTransformFinalVert (fv, av, r_apnewverts, r_apoldverts);
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if (av->fv[2] < ALIAS_Z_CLIP_PLANE)
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fv->flags |= ALIAS_Z_CLIP;
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else
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{
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R_AliasProjectFinalVert (fv, av);
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if (fv->v[0] < r_refdef.aliasvrect.x)
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fv->flags |= ALIAS_LEFT_CLIP;
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if (fv->v[1] < r_refdef.aliasvrect.y)
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fv->flags |= ALIAS_TOP_CLIP;
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if (fv->v[0] > r_refdef.aliasvrectright)
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fv->flags |= ALIAS_RIGHT_CLIP;
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if (fv->v[1] > r_refdef.aliasvrectbottom)
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fv->flags |= ALIAS_BOTTOM_CLIP;
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}
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}
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pstverts = (mstvert_t *)((qbyte *)paliashdr + paliashdr->stverts);
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//
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// clip and draw all triangles
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//
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r_affinetridesc.numtriangles = 1;
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ptri = (mtriangle_t *)((qbyte *)paliashdr + paliashdr->triangles);
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for (i=0 ; i<pmdl->numtris ; i++, ptri++)
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{
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pfv[0] = &pfinalverts[ptri->xyz_index[0]];
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pfv[1] = &pfinalverts[ptri->xyz_index[1]];
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pfv[2] = &pfinalverts[ptri->xyz_index[2]];
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if ( pfv[0]->flags & pfv[1]->flags & pfv[2]->flags & (ALIAS_XY_CLIP_MASK | ALIAS_Z_CLIP) )
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continue; // completely clipped
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pfv[0]->v[2] = pstverts[ptri->st_index[0]].s;
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pfv[0]->v[3] = pstverts[ptri->st_index[0]].t;
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pfv[1]->v[2] = pstverts[ptri->st_index[1]].s;
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pfv[1]->v[3] = pstverts[ptri->st_index[1]].t;
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pfv[2]->v[2] = pstverts[ptri->st_index[2]].s;
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pfv[2]->v[3] = pstverts[ptri->st_index[2]].t;
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if ( ! ( (pfv[0]->flags | pfv[1]->flags | pfv[2]->flags) &
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(ALIAS_XY_CLIP_MASK | ALIAS_Z_CLIP) ) )
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{ // totally unclipped
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r_affinetridesc.pfinalverts = pfinalverts;
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r_affinetridesc.ptriangles = ptri;
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if (r_pixbytes == 4)
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D_PolysetDraw32 ();
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else if (r_pixbytes == 2)
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D_PolysetDraw16 ();
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else
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D_PolysetDraw ();
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}
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else
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{ // partially clipped
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R_AliasClipTriangle (ptri);
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}
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}
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}
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/*
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================
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R_AliasSetUpTransform
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================
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*/
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void R_AliasSetUpTransform (int trivial_accept)
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{
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int i;
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float rotationmatrix[3][4], t2matrix[3][4];
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static float tmatrix[3][4];
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static float viewmatrix[3][4];
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vec3_t angles;
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// TODO: should really be stored with the entity instead of being reconstructed
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// TODO: should use a look-up table
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// TODO: could cache lazily, stored in the entity
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angles[ROLL] = currententity->angles[ROLL];
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angles[PITCH] = -currententity->angles[PITCH];
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angles[YAW] = currententity->angles[YAW];
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AngleVectors (angles, alias_forward, alias_right, alias_up);
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tmatrix[0][0] = currententity->scale;
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tmatrix[1][1] = currententity->scale;
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tmatrix[2][2] = currententity->scale;
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tmatrix[0][3] = 0;
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tmatrix[1][3] = 0;
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tmatrix[2][3] = 0;
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// TODO: can do this with simple matrix rearrangement
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for (i=0 ; i<3 ; i++)
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{
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t2matrix[i][0] = alias_forward[i];
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t2matrix[i][1] = -alias_right[i];
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t2matrix[i][2] = alias_up[i];
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}
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t2matrix[0][3] = -modelorg[0];
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t2matrix[1][3] = -modelorg[1];
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t2matrix[2][3] = -modelorg[2];
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// FIXME: can do more efficiently than full concatenation
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R_ConcatTransforms (t2matrix, tmatrix, rotationmatrix);
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// TODO: should be global, set when vright, etc., set
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VectorCopy (vright, viewmatrix[0]);
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VectorCopy (vup, viewmatrix[1]);
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VectorInverse (viewmatrix[1]);
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VectorCopy (vpn, viewmatrix[2]);
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// viewmatrix[0][3] = 0;
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// viewmatrix[1][3] = 0;
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// viewmatrix[2][3] = 0;
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R_ConcatTransforms (viewmatrix, rotationmatrix, aliastransform);
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// do the scaling up of x and y to screen coordinates as part of the transform
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// for the unclipped case (it would mess up clipping in the clipped case).
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// Also scale down z, so 1/z is scaled 31 bits for free, and scale down x and y
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// correspondingly so the projected x and y come out right
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// FIXME: make this work for clipped case too?
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if (trivial_accept)
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{
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for (i=0 ; i<4 ; i++)
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{
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aliastransform[0][i] *= aliasxscale *
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(1.0 / ((float)0x8000 * 0x10000));
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aliastransform[1][i] *= aliasyscale *
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(1.0 / ((float)0x8000 * 0x10000));
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aliastransform[2][i] *= 1.0 / ((float)0x8000 * 0x10000);
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}
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}
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}
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/*
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================
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R_AliasTransformFinalVert
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================
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*/
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void R_AliasTransformFinalVert (finalvert_t *fv, auxvert_t *av,
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dtrivertx_t *pnewverts, dtrivertx_t *poldverts)//, mstvert_t *pstverts)
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{
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int temp;
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float lightcos, *plightnormal;
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vec3_t lerp_org;
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lerp_org[0] = r_amovelerp[0] + pnewverts->v[0]*r_afrntlerp[0] + poldverts->v[0]*r_abacklerp[0];
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lerp_org[1] = r_amovelerp[1] + pnewverts->v[1]*r_afrntlerp[1] + poldverts->v[1]*r_abacklerp[1];
|
|
lerp_org[2] = r_amovelerp[2] + pnewverts->v[2]*r_afrntlerp[2] + poldverts->v[2]*r_abacklerp[2];
|
|
|
|
av->fv[0] = DotProduct(lerp_org, aliastransform[0]) +
|
|
aliastransform[0][3];
|
|
av->fv[1] = DotProduct(lerp_org, aliastransform[1]) +
|
|
aliastransform[1][3];
|
|
av->fv[2] = DotProduct(lerp_org, aliastransform[2]) +
|
|
aliastransform[2][3];
|
|
|
|
fv->v[2] = 0;
|
|
fv->v[3] = 0;
|
|
|
|
fv->flags = 0;
|
|
|
|
// lighting
|
|
plightnormal = r_avertexnormals[pnewverts->lightnormalindex];
|
|
lightcos = DotProduct (plightnormal, r_plightvec);
|
|
temp = r_ambientlight;
|
|
|
|
if (lightcos < 0)
|
|
{
|
|
temp += (int)(r_shadelight * lightcos);
|
|
|
|
// clamp; because we limited the minimum ambient and shading light, we
|
|
// don't have to clamp low light, just bright
|
|
if (temp < 0)
|
|
temp = 0;
|
|
}
|
|
|
|
fv->v[4] = temp;
|
|
}
|
|
|
|
|
|
#if 1 //!id386 since stvert_t was changed.
|
|
|
|
/*
|
|
================
|
|
R_AliasTransformAndProjectFinalVerts
|
|
================
|
|
*/
|
|
void R_AliasTransformAndProjectFinalVerts (finalvert_t *fv)//, stvert_t *pstverts)
|
|
{
|
|
int i, temp;
|
|
float lightcos, *plightnormal, zi;
|
|
dtrivertx_t *pnewverts, *poldverts;
|
|
|
|
vec3_t lerp_org;
|
|
|
|
pnewverts = r_apnewverts;
|
|
poldverts = r_apoldverts;
|
|
|
|
for (i=0 ; i<r_anumverts ; i++, fv++, pnewverts++, poldverts++)
|
|
{
|
|
lerp_org[0] = r_amovelerp[0] + pnewverts->v[0]*r_afrntlerp[0] + poldverts->v[0]*r_abacklerp[0];
|
|
lerp_org[1] = r_amovelerp[1] + pnewverts->v[1]*r_afrntlerp[1] + poldverts->v[1]*r_abacklerp[1];
|
|
lerp_org[2] = r_amovelerp[2] + pnewverts->v[2]*r_afrntlerp[2] + poldverts->v[2]*r_abacklerp[2];
|
|
|
|
// transform and project
|
|
zi = 1.0 / (DotProduct(lerp_org, aliastransform[2]) +
|
|
aliastransform[2][3]);
|
|
|
|
// x, y, and z are scaled down by 1/2**31 in the transform, so 1/z is
|
|
// scaled up by 1/2**31, and the scaling cancels out for x and y in the
|
|
// projection
|
|
fv->v[5] = zi;
|
|
|
|
fv->v[0] = ((DotProduct(lerp_org, aliastransform[0]) +
|
|
aliastransform[0][3]) * zi) + aliasxcenter;
|
|
fv->v[1] = ((DotProduct(lerp_org, aliastransform[1]) +
|
|
aliastransform[1][3]) * zi) + aliasycenter;
|
|
|
|
fv->v[2] = 0;//pstverts->s;
|
|
fv->v[3] = 0;//pstverts->t;
|
|
fv->flags = 0;
|
|
|
|
// lighting
|
|
plightnormal = r_avertexnormals[pnewverts->lightnormalindex]; //don't bother lerping light.
|
|
lightcos = DotProduct (plightnormal, r_plightvec);
|
|
temp = r_ambientlight;
|
|
|
|
if (lightcos < 0)
|
|
{
|
|
temp += (int)(r_shadelight * lightcos);
|
|
|
|
// clamp; because we limited the minimum ambient and shading light, we
|
|
// don't have to clamp low light, just bright
|
|
if (temp < 0)
|
|
temp = 0;
|
|
}
|
|
|
|
fv->v[4] = temp;
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
/*
|
|
================
|
|
R_AliasProjectFinalVert
|
|
================
|
|
*/
|
|
void R_AliasProjectFinalVert (finalvert_t *fv, auxvert_t *av)
|
|
{
|
|
float zi;
|
|
|
|
// project points
|
|
zi = 1.0 / av->fv[2];
|
|
|
|
fv->v[5] = zi * ziscale;
|
|
|
|
fv->v[0] = (av->fv[0] * aliasxscale * zi) + aliasxcenter;
|
|
fv->v[1] = (av->fv[1] * aliasyscale * zi) + aliasycenter;
|
|
}
|
|
|
|
|
|
/*
|
|
================
|
|
R_AliasPrepareUnclippedPoints
|
|
================
|
|
*/
|
|
void R_AliasPrepareUnclippedPoints (void)
|
|
{
|
|
finalvert_t *fv;
|
|
|
|
r_anumverts = pmdl->numverts;
|
|
// FIXME: just use pfinalverts directly?
|
|
fv = pfinalverts;
|
|
|
|
R_AliasTransformAndProjectFinalVerts (fv);
|
|
|
|
if (r_affinetridesc.drawtype)
|
|
{
|
|
if (r_pixbytes == 4)
|
|
D_PolysetDrawFinalVerts32Trans (fv, r_anumverts);
|
|
else
|
|
D_PolysetDrawFinalVerts (fv, r_anumverts);
|
|
}
|
|
|
|
r_affinetridesc.pfinalverts = pfinalverts;
|
|
r_affinetridesc.ptriangles = (mtriangle_t *)
|
|
((qbyte *)paliashdr + paliashdr->triangles);
|
|
r_affinetridesc.numtriangles = pmdl->numtris;
|
|
|
|
if (r_pixbytes == 4)
|
|
D_PolysetDraw32 ();
|
|
else
|
|
D_PolysetDraw ();
|
|
}
|
|
|
|
/*
|
|
===============
|
|
R_AliasSetupSkin
|
|
===============
|
|
*/
|
|
void R_AliasSetupSkin (void)
|
|
{
|
|
int skinnum;
|
|
int i, numskins;
|
|
maliasskingroup_t *paliasskingroup;
|
|
float *pskinintervals, fullskininterval;
|
|
float skintargettime, skintime;
|
|
|
|
skinnum = currententity->skinnum;
|
|
if ((skinnum >= pmdl->numskins) || (skinnum < 0))
|
|
{
|
|
Con_DPrintf ("R_AliasSetupSkin: no such skin # %d\n", skinnum);
|
|
skinnum = 0;
|
|
}
|
|
|
|
pskindesc = ((maliasskindesc_t *)
|
|
((qbyte *)paliashdr + paliashdr->skindesc)) + skinnum;
|
|
a_skinwidth = pmdl->skinwidth;
|
|
|
|
if (pskindesc->type == ALIAS_SKIN_GROUP)
|
|
{
|
|
paliasskingroup = (maliasskingroup_t *)((qbyte *)paliashdr +
|
|
pskindesc->skin);
|
|
pskinintervals = (float *)
|
|
((qbyte *)paliashdr + paliasskingroup->intervals);
|
|
numskins = paliasskingroup->numskins;
|
|
fullskininterval = pskinintervals[numskins-1];
|
|
|
|
skintime = cl.time + currententity->syncbase;
|
|
|
|
// when loading in Mod_LoadAliasSkinGroup, we guaranteed all interval
|
|
// values are positive, so we don't have to worry about division by 0
|
|
skintargettime = skintime -
|
|
((int)(skintime / fullskininterval)) * fullskininterval;
|
|
|
|
for (i=0 ; i<(numskins-1) ; i++)
|
|
{
|
|
if (pskinintervals[i] > skintargettime)
|
|
break;
|
|
}
|
|
|
|
pskindesc = &paliasskingroup->skindescs[i];
|
|
}
|
|
|
|
r_affinetridesc.pskindesc = pskindesc;
|
|
r_affinetridesc.pskin = (void *)((qbyte *)paliashdr + pskindesc->skin);
|
|
r_affinetridesc.skinwidth = a_skinwidth;
|
|
r_affinetridesc.skinheight = pmdl->skinheight;
|
|
|
|
if (currententity->model != cl.model_precache[cl_playerindex])
|
|
return;
|
|
//alternate player skins.
|
|
if (currententity->scoreboard && r_pixbytes == 1)
|
|
{
|
|
qbyte *base;
|
|
skin_t *skin;
|
|
|
|
if (!currententity->scoreboard->skin)
|
|
Skin_Find (currententity->scoreboard);
|
|
base = Skin_Cache8 (currententity->scoreboard->skin);
|
|
skin = currententity->scoreboard->skin;
|
|
if (base && skin->cachedbpp == r_pixbytes*8)
|
|
{
|
|
r_affinetridesc.pskin = base;
|
|
r_affinetridesc.skinwidth = skin->width;
|
|
r_affinetridesc.skinheight = skin->height;
|
|
}
|
|
}
|
|
else if (currententity->scoreboard)
|
|
{
|
|
qbyte *base;
|
|
skin_t *skin;
|
|
|
|
if (!currententity->scoreboard->skin)
|
|
Skin_Find (currententity->scoreboard);
|
|
base = Skin_Cache32 (currententity->scoreboard->skin);
|
|
skin = currententity->scoreboard->skin;
|
|
if (base && skin->cachedbpp == r_pixbytes*8)
|
|
{
|
|
r_affinetridesc.pskin = base;
|
|
r_affinetridesc.skinwidth = skin->width;
|
|
r_affinetridesc.skinheight = skin->height;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
================
|
|
R_AliasSetupLighting
|
|
================
|
|
*/
|
|
void R_AliasSetupLighting (alight_t *plighting)
|
|
{
|
|
|
|
if (r_pixbytes == 4)
|
|
{ //fixes inverse lighting in sw 32.
|
|
//we fix it here so the lighting code doesn't have to have lots of extra minuses, as they are multiplied out
|
|
plighting->ambientlight=(128-plighting->ambientlight);
|
|
plighting->shadelight=(128-plighting->shadelight);
|
|
}
|
|
|
|
// guarantee that no vertex will ever be lit below LIGHT_MIN, so we don't have
|
|
// to clamp off the bottom
|
|
r_ambientlight = plighting->ambientlight;
|
|
|
|
r_shadelight = plighting->shadelight;
|
|
|
|
if (r_ambientlight < LIGHT_MIN)
|
|
r_ambientlight = LIGHT_MIN;
|
|
|
|
r_ambientlight = (255 - r_ambientlight) << VID_CBITS;
|
|
|
|
if (r_ambientlight < LIGHT_MIN)
|
|
r_ambientlight = LIGHT_MIN;
|
|
|
|
if (r_shadelight < 0)
|
|
r_shadelight = 0;
|
|
|
|
r_shadelight *= VID_GRADES;
|
|
|
|
// rotate the lighting vector into the model's frame of reference
|
|
r_plightvec[0] = DotProduct (plighting->plightvec, alias_forward);
|
|
r_plightvec[1] = -DotProduct (plighting->plightvec, alias_right);
|
|
r_plightvec[2] = DotProduct (plighting->plightvec, alias_up);
|
|
}
|
|
|
|
/*
|
|
=================
|
|
R_AliasSetupFrame
|
|
|
|
set r_apverts
|
|
=================
|
|
*/
|
|
void R_AliasSetupFrame (void)
|
|
{
|
|
int frame, oframe;
|
|
int i, numframes;
|
|
maliasgroup_t *paliasgroup;
|
|
float *pintervals, fullinterval, targettime, time;
|
|
|
|
// float *min1, *min2;
|
|
// vec3_t max1, max2;
|
|
float fl, bl;
|
|
|
|
frame = currententity->frame;
|
|
if ((frame >= pmdl->numframes) || (frame < 0))
|
|
{
|
|
Con_DPrintf ("R_AliasSetupFrame: no such frame %d\n", frame);
|
|
frame = 0;
|
|
}
|
|
oframe = currententity->oldframe;
|
|
if ((oframe >= pmdl->numframes) || (oframe < 0))
|
|
{
|
|
// Con_DPrintf ("R_AliasSetupFrame: no such frame %d\n", oframe); //pointless
|
|
oframe = 0;
|
|
}
|
|
|
|
bl = currententity->lerptime;
|
|
fl = 1.0 - bl;
|
|
|
|
for (i = 0; i < 3; i++)
|
|
{
|
|
r_abacklerp[i] = paliashdr->frames[oframe].scale[i]*bl;
|
|
r_afrntlerp[i] = paliashdr->frames[frame].scale[i]*fl;
|
|
r_amovelerp[i] = paliashdr->frames[frame].scale_origin[i]*fl + paliashdr->frames[oframe].scale_origin[i]*bl;
|
|
|
|
}
|
|
|
|
if (paliashdr->frames[frame].type == ALIAS_SINGLE)
|
|
{
|
|
r_apnewverts = (dtrivertx_t *)
|
|
((qbyte *)paliashdr + paliashdr->frames[frame].frame);
|
|
}
|
|
else
|
|
{
|
|
paliasgroup = (maliasgroup_t *)
|
|
((qbyte *)paliashdr + paliashdr->frames[frame].frame);
|
|
pintervals = (float *)((qbyte *)paliashdr + paliasgroup->intervals);
|
|
numframes = paliasgroup->numframes;
|
|
fullinterval = pintervals[numframes-1];
|
|
|
|
time = cl.time + currententity->syncbase;
|
|
|
|
//
|
|
// when loading in Mod_LoadAliasGroup, we guaranteed all interval values
|
|
// are positive, so we don't have to worry about division by 0
|
|
//
|
|
targettime = time - ((int)(time / fullinterval)) * fullinterval;
|
|
|
|
for (i=0 ; i<(numframes-1) ; i++)
|
|
{
|
|
if (pintervals[i] > targettime)
|
|
break;
|
|
}
|
|
|
|
r_apnewverts = (dtrivertx_t *)
|
|
((qbyte *)paliashdr + paliasgroup->frames[i].frame);
|
|
}
|
|
|
|
if (paliashdr->frames[oframe].type == ALIAS_SINGLE) //things could go haywire here...
|
|
{
|
|
r_apoldverts = (dtrivertx_t *)
|
|
((qbyte *)paliashdr + paliashdr->frames[oframe].frame);
|
|
}
|
|
else
|
|
{
|
|
paliasgroup = (maliasgroup_t *)
|
|
((qbyte *)paliashdr + paliashdr->frames[oframe].frame);
|
|
pintervals = (float *)((qbyte *)paliashdr + paliasgroup->intervals);
|
|
numframes = paliasgroup->numframes;
|
|
fullinterval = pintervals[numframes-1];
|
|
|
|
time = cl.time + currententity->syncbase;
|
|
|
|
//
|
|
// when loading in Mod_LoadAliasGroup, we guaranteed all interval values
|
|
// are positive, so we don't have to worry about division by 0
|
|
//
|
|
targettime = time - ((int)(time / fullinterval)) * fullinterval;
|
|
|
|
for (i=0 ; i<(numframes-1) ; i++)
|
|
{
|
|
if (pintervals[i] > targettime)
|
|
break;
|
|
}
|
|
|
|
r_apoldverts = (dtrivertx_t *)
|
|
((qbyte *)paliashdr + paliasgroup->frames[i].frame);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
================
|
|
R_AliasDrawModel
|
|
================
|
|
*/
|
|
void R_AliasDrawModel (alight_t *plighting)
|
|
{
|
|
finalvert_t finalverts[MAXALIASVERTS +
|
|
((CACHE_SIZE - 1) / sizeof(finalvert_t)) + 1];
|
|
auxvert_t auxverts[MAXALIASVERTS];
|
|
|
|
extern qbyte transfactor;
|
|
extern qbyte transbackfac;
|
|
|
|
|
|
r_amodels_drawn++;
|
|
|
|
// cache align
|
|
pfinalverts = (finalvert_t *)
|
|
(((long)&finalverts[0] + CACHE_SIZE - 1) & ~(CACHE_SIZE - 1));
|
|
pauxverts = &auxverts[0];
|
|
|
|
paliashdr = (aliashdr_t *)SWMod_Extradata (currententity->model);
|
|
pmdl = (mmdl_t *)((qbyte *)paliashdr + paliashdr->model);
|
|
|
|
R_AliasSetupSkin ();
|
|
R_AliasSetUpTransform (currententity->trivial_accept);
|
|
R_AliasSetupLighting (plighting);
|
|
R_AliasSetupFrame ();
|
|
|
|
transfactor = currententity->alpha*255;
|
|
transbackfac = 255 - transfactor;
|
|
|
|
if (!currententity->colormap)
|
|
currententity->colormap = vid.colormap;
|
|
// Sys_Error ("R_AliasDrawModel: !currententity->colormap");
|
|
|
|
r_affinetridesc.drawtype = (currententity->trivial_accept == 3) &&
|
|
r_recursiveaffinetriangles;
|
|
|
|
r_affinetridesc.pstverts = (mstvert_t *)((qbyte *)paliashdr + paliashdr->stverts);
|
|
|
|
if (r_affinetridesc.drawtype)
|
|
{
|
|
D_PolysetUpdateTables (); // FIXME: precalc...
|
|
}
|
|
else
|
|
{
|
|
#if id386
|
|
D_Aff8Patch (currententity->colormap);
|
|
#endif
|
|
}
|
|
|
|
acolormap = currententity->colormap;
|
|
if (r_pixbytes == 2)
|
|
acolormap = vid.colormap16;
|
|
|
|
if (currententity == &cl.viewent[r_refdef.currentplayernum] || currententity->flags & Q2RF_DEPTHHACK)
|
|
ziscale = (float)0x8000 * (float)0x10000 * 3.0;
|
|
else
|
|
ziscale = (float)0x8000 * (float)0x10000;
|
|
|
|
if (currententity->trivial_accept)
|
|
R_AliasPrepareUnclippedPoints ();
|
|
else
|
|
R_AliasPreparePoints ();
|
|
}
|
|
|