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quakespasm/Quake/r_alias.c
sezero e1046e68c6 * renamed Length() to VectorLength() for consistency with its friends. 
* mathlib.c: Removed the unnecessary sqrt() prototype.
(VectorLength): Made it to just return sqrt(DotProduct(arg,arg))
(VectorNormalize): Calculate the length as sqrt(DotProduct(arg,arg)).
* mathlib.h (CLAMP): Renamed the macro arguments from min and max to
_minval and _maxval.


git-svn-id: http://svn.code.sf.net/p/quakespasm/code/trunk/quakespasm@248 af15c1b1-3010-417e-b628-4374ebc0bcbd
2010-08-01 19:22:46 +00:00

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/*
Copyright (C) 1996-2001 Id Software, Inc.
Copyright (C) 2002-2009 John Fitzgibbons and others
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
//r_alias.c -- alias model rendering
#include "quakedef.h"
extern qboolean mtexenabled; //johnfitz
extern cvar_t r_drawflat, gl_overbright_models, gl_fullbrights, r_lerpmodels, r_lerpmove; //johnfitz
//up to 16 color translated skins
gltexture_t *playertextures[MAX_SCOREBOARD]; //johnfitz -- changed to an array of pointers
#define NUMVERTEXNORMALS 162
float r_avertexnormals[NUMVERTEXNORMALS][3] = {
#include "anorms.h"
};
vec3_t shadevector;
extern vec3_t lightcolor; //johnfitz -- replaces "float shadelight" for lit support
// precalculated dot products for quantized angles
#define SHADEDOT_QUANT 16
float r_avertexnormal_dots[SHADEDOT_QUANT][256] =
#include "anorm_dots.h"
;
extern vec3_t lightspot;
float *shadedots = r_avertexnormal_dots[0];
float entalpha; //johnfitz
qboolean overbright; //johnfitz
qboolean shading = true; //johnfitz -- if false, disable vertex shading for various reasons (fullbright, r_lightmap, showtris, etc)
//johnfitz -- struct for passing lerp information to drawing functions
typedef struct {
short pose1;
short pose2;
float blend;
vec3_t origin;
vec3_t angles;
} lerpdata_t;
//johnfitz
/*
=============
GL_DrawAliasFrame -- johnfitz -- rewritten to support colored light, lerping, entalpha, multitexture, and r_drawflat
=============
*/
void GL_DrawAliasFrame (aliashdr_t *paliashdr, lerpdata_t lerpdata)
{
float vertcolor[4];
trivertx_t *verts1, *verts2;
int *commands;
int count;
float u,v;
float blend, iblend;
qboolean lerping;
if (lerpdata.pose1 != lerpdata.pose2)
{
lerping = true;
verts1 = (trivertx_t *)((byte *)paliashdr + paliashdr->posedata);
verts2 = verts1;
verts1 += lerpdata.pose1 * paliashdr->poseverts;
verts2 += lerpdata.pose2 * paliashdr->poseverts;
blend = lerpdata.blend;
iblend = 1.0f - blend;
}
else // poses the same means either 1. the entity has paused its animation, or 2. r_lerpmodels is disabled
{
lerping = false;
verts1 = (trivertx_t *)((byte *)paliashdr + paliashdr->posedata);
verts2 = verts1; // avoid bogus compiler warning
verts1 += lerpdata.pose1 * paliashdr->poseverts;
blend = iblend = 0; // avoid bogus compiler warning
}
commands = (int *)((byte *)paliashdr + paliashdr->commands);
vertcolor[3] = entalpha; //never changes, so there's no need to put this inside the loop
while (1)
{
// get the vertex count and primitive type
count = *commands++;
if (!count)
break; // done
if (count < 0)
{
count = -count;
glBegin (GL_TRIANGLE_FAN);
}
else
glBegin (GL_TRIANGLE_STRIP);
do
{
u = ((float *)commands)[0];
v = ((float *)commands)[1];
if (mtexenabled)
{
GL_MTexCoord2fFunc (TEXTURE0, u, v);
GL_MTexCoord2fFunc (TEXTURE1, u, v);
}
else
glTexCoord2f (u, v);
commands += 2;
if (shading)
{
if (r_drawflat_cheatsafe)
{
srand(count * (unsigned int)(src_offset_t)commands);
glColor3f (rand()%256/255.0, rand()%256/255.0, rand()%256/255.0);
}
else if (lerping)
{
vertcolor[0] = (shadedots[verts1->lightnormalindex]*iblend + shadedots[verts2->lightnormalindex]*blend) * lightcolor[0];
vertcolor[1] = (shadedots[verts1->lightnormalindex]*iblend + shadedots[verts2->lightnormalindex]*blend) * lightcolor[1];
vertcolor[2] = (shadedots[verts1->lightnormalindex]*iblend + shadedots[verts2->lightnormalindex]*blend) * lightcolor[2];
glColor4fv (vertcolor);
}
else
{
vertcolor[0] = shadedots[verts1->lightnormalindex] * lightcolor[0];
vertcolor[1] = shadedots[verts1->lightnormalindex] * lightcolor[1];
vertcolor[2] = shadedots[verts1->lightnormalindex] * lightcolor[2];
glColor4fv (vertcolor);
}
}
if (lerping)
{
glVertex3f (verts1->v[0]*iblend + verts2->v[0]*blend,
verts1->v[1]*iblend + verts2->v[1]*blend,
verts1->v[2]*iblend + verts2->v[2]*blend);
verts1++;
verts2++;
}
else
{
glVertex3f (verts1->v[0], verts1->v[1], verts1->v[2]);
verts1++;
}
} while (--count);
glEnd ();
}
rs_aliaspasses += paliashdr->numtris;
}
/*
=================
R_SetupAliasFrame -- johnfitz -- rewritten to support lerping
=================
*/
void R_SetupAliasFrame (aliashdr_t *paliashdr, int frame, lerpdata_t *lerpdata)
{
entity_t *e = currententity;
int posenum, numposes;
if ((frame >= paliashdr->numframes) || (frame < 0))
{
Con_DPrintf ("R_AliasSetupFrame: no such frame %d\n", frame);
frame = 0;
}
posenum = paliashdr->frames[frame].firstpose;
numposes = paliashdr->frames[frame].numposes;
if (numposes > 1)
{
e->lerptime = paliashdr->frames[frame].interval;
posenum += (int)(cl.time / e->lerptime) % numposes;
}
else
e->lerptime = 0.1;
if (e->lerpflags & LERP_RESETANIM) //kill any lerp in progress
{
e->lerpstart = 0;
e->previouspose = posenum;
e->currentpose = posenum;
e->lerpflags -= LERP_RESETANIM;
}
else if (e->currentpose != posenum) // pose changed, start new lerp
{
if (e->lerpflags & LERP_RESETANIM2) //defer lerping one more time
{
e->lerpstart = 0;
e->previouspose = posenum;
e->currentpose = posenum;
e->lerpflags -= LERP_RESETANIM2;
}
else
{
e->lerpstart = cl.time;
e->previouspose = e->currentpose;
e->currentpose = posenum;
}
}
//set up values
if (r_lerpmodels.value && !(e->model->flags & MOD_NOLERP && r_lerpmodels.value != 2))
{
if (e->lerpflags & LERP_FINISH && numposes == 1)
lerpdata->blend = CLAMP (0, (cl.time - e->lerpstart) / (e->lerpfinish - e->lerpstart), 1);
else
lerpdata->blend = CLAMP (0, (cl.time - e->lerpstart) / e->lerptime, 1);
lerpdata->pose1 = e->previouspose;
lerpdata->pose2 = e->currentpose;
}
else //don't lerp
{
lerpdata->blend = 1;
lerpdata->pose1 = posenum;
lerpdata->pose2 = posenum;
}
}
/*
=================
R_SetupEntityTransform -- johnfitz -- set up transform part of lerpdata
=================
*/
void R_SetupEntityTransform (entity_t *e, lerpdata_t *lerpdata)
{
float blend;
vec3_t d;
int i;
// if LERP_RESETMOVE, kill any lerps in progress
if (e->lerpflags & LERP_RESETMOVE)
{
e->movelerpstart = 0;
VectorCopy (e->origin, e->previousorigin);
VectorCopy (e->origin, e->currentorigin);
VectorCopy (e->angles, e->previousangles);
VectorCopy (e->angles, e->currentangles);
e->lerpflags -= LERP_RESETMOVE;
}
else if (!VectorCompare (e->origin, e->currentorigin) || !VectorCompare (e->angles, e->currentangles)) // origin/angles changed, start new lerp
{
e->movelerpstart = cl.time;
VectorCopy (e->currentorigin, e->previousorigin);
VectorCopy (e->origin, e->currentorigin);
VectorCopy (e->currentangles, e->previousangles);
VectorCopy (e->angles, e->currentangles);
}
//set up values
if (r_lerpmove.value && e != &cl.viewent && e->lerpflags & LERP_MOVESTEP)
{
if (e->lerpflags & LERP_FINISH)
blend = CLAMP (0, (cl.time - e->movelerpstart) / (e->lerpfinish - e->movelerpstart), 1);
else
blend = CLAMP (0, (cl.time - e->movelerpstart) / 0.1, 1);
//translation
VectorSubtract (e->currentorigin, e->previousorigin, d);
lerpdata->origin[0] = e->previousorigin[0] + d[0] * blend;
lerpdata->origin[1] = e->previousorigin[1] + d[1] * blend;
lerpdata->origin[2] = e->previousorigin[2] + d[2] * blend;
//rotation
VectorSubtract (e->currentangles, e->previousangles, d);
for (i = 0; i < 3; i++)
{
if (d[i] > 180) d[i] -= 360;
if (d[i] < -180) d[i] += 360;
}
lerpdata->angles[0] = e->previousangles[0] + d[0] * blend;
lerpdata->angles[1] = e->previousangles[1] + d[1] * blend;
lerpdata->angles[2] = e->previousangles[2] + d[2] * blend;
}
else //don't lerp
{
VectorCopy (e->origin, lerpdata->origin);
VectorCopy (e->angles, lerpdata->angles);
}
}
/*
=================
R_SetupAliasLighting -- johnfitz -- broken out from R_DrawAliasModel and rewritten
=================
*/
void R_SetupAliasLighting (entity_t *e)
{
vec3_t dist;
float add;
int i;
R_LightPoint (e->origin);
//add dlights
for (i=0 ; i<MAX_DLIGHTS ; i++)
{
if (cl_dlights[i].die >= cl.time)
{
VectorSubtract (currententity->origin, cl_dlights[i].origin, dist);
add = cl_dlights[i].radius - VectorLength(dist);
if (add > 0)
VectorMA (lightcolor, add, cl_dlights[i].color, lightcolor);
}
}
// minimum light value on gun (24)
if (e == &cl.viewent)
{
add = 72.0f - (lightcolor[0] + lightcolor[1] + lightcolor[2]);
if (add > 0.0f)
{
lightcolor[0] += add / 3.0f;
lightcolor[1] += add / 3.0f;
lightcolor[2] += add / 3.0f;
}
}
// minimum light value on players (8)
if (currententity > cl_entities && currententity <= cl_entities + cl.maxclients)
{
add = 24.0f - (lightcolor[0] + lightcolor[1] + lightcolor[2]);
if (add > 0.0f)
{
lightcolor[0] += add / 3.0f;
lightcolor[1] += add / 3.0f;
lightcolor[2] += add / 3.0f;
}
}
// clamp lighting so it doesn't overbright as much (96)
if (overbright)
{
add = 288.0f / (lightcolor[0] + lightcolor[1] + lightcolor[2]);
if (add < 1.0f)
VectorScale(lightcolor, add, lightcolor);
}
//hack up the brightness when fullbrights but no overbrights (256)
if (gl_fullbrights.value && !gl_overbright_models.value)
if (e->model->flags & MOD_FBRIGHTHACK)
{
lightcolor[0] = 256.0f;
lightcolor[1] = 256.0f;
lightcolor[2] = 256.0f;
}
shadedots = r_avertexnormal_dots[((int)(e->angles[1] * (SHADEDOT_QUANT / 360.0))) & (SHADEDOT_QUANT - 1)];
VectorScale(lightcolor, 1.0f / 200.0f, lightcolor);
}
/*
=================
R_DrawAliasModel -- johnfitz -- almost completely rewritten
=================
*/
void R_DrawAliasModel (entity_t *e)
{
aliashdr_t *paliashdr;
int i, anim;
gltexture_t *tx, *fb;
lerpdata_t lerpdata;
//
// setup pose/lerp data -- do it first so we don't miss updates due to culling
//
paliashdr = (aliashdr_t *)Mod_Extradata (e->model);
R_SetupAliasFrame (paliashdr, e->frame, &lerpdata);
R_SetupEntityTransform (e, &lerpdata);
//
// cull it
//
if (R_CullModelForEntity(e))
return;
//
// transform it
//
glPushMatrix ();
R_RotateForEntity (lerpdata.origin, lerpdata.angles);
glTranslatef (paliashdr->scale_origin[0], paliashdr->scale_origin[1], paliashdr->scale_origin[2]);
glScalef (paliashdr->scale[0], paliashdr->scale[1], paliashdr->scale[2]);
//
// random stuff
//
if (gl_smoothmodels.value && !r_drawflat_cheatsafe)
glShadeModel (GL_SMOOTH);
if (gl_affinemodels.value)
glHint (GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST);
overbright = gl_overbright_models.value;
shading = true;
//
// set up for alpha blending
//
if (r_drawflat_cheatsafe || r_lightmap_cheatsafe) //no alpha in drawflat or lightmap mode
entalpha = 1;
else
entalpha = ENTALPHA_DECODE(e->alpha);
if (entalpha == 0)
goto cleanup;
if (entalpha < 1)
{
if (!gl_texture_env_combine) overbright = false; //overbright can't be done in a single pass without combiners
glDepthMask(GL_FALSE);
glEnable(GL_BLEND);
}
//
// set up lighting
//
rs_aliaspolys += paliashdr->numtris;
R_SetupAliasLighting (e);
//
// set up textures
//
GL_DisableMultitexture();
anim = (int)(cl.time*10) & 3;
tx = paliashdr->gltextures[e->skinnum][anim];
fb = paliashdr->fbtextures[e->skinnum][anim];
if (e->colormap != vid.colormap && !gl_nocolors.value)
{
i = e - cl_entities;
if (i >= 1 && i<=cl.maxclients /* && !strcmp (currententity->model->name, "progs/player.mdl") */)
tx = playertextures[i - 1];
}
if (!gl_fullbrights.value)
fb = NULL;
//
// draw it
//
if (r_drawflat_cheatsafe)
{
glDisable (GL_TEXTURE_2D);
GL_DrawAliasFrame (paliashdr, lerpdata);
glEnable (GL_TEXTURE_2D);
srand((int) (cl.time * 1000)); //restore randomness
}
else if (r_fullbright_cheatsafe)
{
GL_Bind (tx);
shading = false;
glColor4f(1,1,1,entalpha);
GL_DrawAliasFrame (paliashdr, lerpdata);
if (fb)
{
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
GL_Bind(fb);
glEnable(GL_BLEND);
glBlendFunc (GL_ONE, GL_ONE);
glDepthMask(GL_FALSE);
glColor3f(entalpha,entalpha,entalpha);
Fog_StartAdditive ();
GL_DrawAliasFrame (paliashdr, lerpdata);
Fog_StopAdditive ();
glDepthMask(GL_TRUE);
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_BLEND);
}
}
else if (r_lightmap_cheatsafe)
{
glDisable (GL_TEXTURE_2D);
shading = false;
glColor3f(1,1,1);
GL_DrawAliasFrame (paliashdr, lerpdata);
glEnable (GL_TEXTURE_2D);
}
else if (overbright)
{
if (gl_texture_env_combine && gl_mtexable && gl_texture_env_add && fb) //case 1: everything in one pass
{
GL_Bind (tx);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_EXT, GL_MODULATE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_EXT, GL_TEXTURE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB_EXT, GL_PRIMARY_COLOR_EXT);
glTexEnvf(GL_TEXTURE_ENV, GL_RGB_SCALE_EXT, 2.0f);
GL_EnableMultitexture(); // selects TEXTURE1
GL_Bind (fb);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_ADD);
glEnable(GL_BLEND);
GL_DrawAliasFrame (paliashdr, lerpdata);
glDisable(GL_BLEND);
GL_DisableMultitexture();
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
}
else if (gl_texture_env_combine) //case 2: overbright in one pass, then fullbright pass
{
// first pass
GL_Bind(tx);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_EXT, GL_MODULATE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_EXT, GL_TEXTURE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB_EXT, GL_PRIMARY_COLOR_EXT);
glTexEnvf(GL_TEXTURE_ENV, GL_RGB_SCALE_EXT, 2.0f);
GL_DrawAliasFrame (paliashdr, lerpdata);
glTexEnvf(GL_TEXTURE_ENV, GL_RGB_SCALE_EXT, 1.0f);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
// second pass
if (fb)
{
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
GL_Bind(fb);
glEnable(GL_BLEND);
glBlendFunc (GL_ONE, GL_ONE);
glDepthMask(GL_FALSE);
shading = false;
glColor3f(entalpha,entalpha,entalpha);
Fog_StartAdditive ();
GL_DrawAliasFrame (paliashdr, lerpdata);
Fog_StopAdditive ();
glDepthMask(GL_TRUE);
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_BLEND);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
}
}
else //case 3: overbright in two passes, then fullbright pass
{
// first pass
GL_Bind(tx);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
GL_DrawAliasFrame (paliashdr, lerpdata);
// second pass -- additive with black fog, to double the object colors but not the fog color
glEnable(GL_BLEND);
glBlendFunc (GL_ONE, GL_ONE);
glDepthMask(GL_FALSE);
Fog_StartAdditive ();
GL_DrawAliasFrame (paliashdr, lerpdata);
Fog_StopAdditive ();
glDepthMask(GL_TRUE);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_BLEND);
// third pass
if (fb)
{
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
GL_Bind(fb);
glEnable(GL_BLEND);
glBlendFunc (GL_ONE, GL_ONE);
glDepthMask(GL_FALSE);
shading = false;
glColor3f(entalpha,entalpha,entalpha);
Fog_StartAdditive ();
GL_DrawAliasFrame (paliashdr, lerpdata);
Fog_StopAdditive ();
glDepthMask(GL_TRUE);
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_BLEND);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
}
}
}
else
{
if (gl_mtexable && gl_texture_env_add && fb) //case 4: fullbright mask using multitexture
{
GL_DisableMultitexture(); // selects TEXTURE0
GL_Bind (tx);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
GL_EnableMultitexture(); // selects TEXTURE1
GL_Bind (fb);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_ADD);
glEnable(GL_BLEND);
GL_DrawAliasFrame (paliashdr, lerpdata);
glDisable(GL_BLEND);
GL_DisableMultitexture();
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
}
else //case 5: fullbright mask without multitexture
{
// first pass
GL_Bind(tx);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
GL_DrawAliasFrame (paliashdr, lerpdata);
// second pass
if (fb)
{
GL_Bind(fb);
glEnable(GL_BLEND);
glBlendFunc (GL_ONE, GL_ONE);
glDepthMask(GL_FALSE);
shading = false;
glColor3f(entalpha,entalpha,entalpha);
Fog_StartAdditive ();
GL_DrawAliasFrame (paliashdr, lerpdata);
Fog_StopAdditive ();
glDepthMask(GL_TRUE);
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_BLEND);
}
}
}
cleanup:
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
glHint (GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
glShadeModel (GL_FLAT);
glDepthMask(GL_TRUE);
glDisable(GL_BLEND);
glColor3f(1,1,1);
glPopMatrix ();
}
//johnfitz -- values for shadow matrix
#define SHADOW_SKEW_X -0.7 //skew along x axis. -0.7 to mimic glquake shadows
#define SHADOW_SKEW_Y 0 //skew along y axis. 0 to mimic glquake shadows
#define SHADOW_VSCALE 0 //0=completely flat
#define SHADOW_HEIGHT 0.1 //how far above the floor to render the shadow
//johnfitz
/*
=============
GL_DrawAliasShadow -- johnfitz -- rewritten
TODO: orient shadow onto "lightplane" (a global mplane_t*)
=============
*/
void GL_DrawAliasShadow (entity_t *e)
{
float shadowmatrix[16] = {1, 0, 0, 0,
0, 1, 0, 0,
SHADOW_SKEW_X, SHADOW_SKEW_Y, SHADOW_VSCALE, 0,
0, 0, SHADOW_HEIGHT, 1};
float lheight;
aliashdr_t *paliashdr;
lerpdata_t lerpdata;
if (R_CullModelForEntity(e))
return;
if (e == &cl.viewent || e->model->flags & MOD_NOSHADOW)
return;
entalpha = ENTALPHA_DECODE(e->alpha);
if (entalpha == 0) return;
paliashdr = (aliashdr_t *)Mod_Extradata (e->model);
R_SetupAliasFrame (paliashdr, e->frame, &lerpdata);
R_SetupEntityTransform (e, &lerpdata);
R_LightPoint (e->origin);
lheight = currententity->origin[2] - lightspot[2];
// set up matrix
glPushMatrix ();
glTranslatef (lerpdata.origin[0], lerpdata.origin[1], lerpdata.origin[2]);
glTranslatef (0,0,-lheight);
glMultMatrixf (shadowmatrix);
glTranslatef (0,0,lheight);
glRotatef (lerpdata.angles[1], 0, 0, 1);
glRotatef (-lerpdata.angles[0], 0, 1, 0);
glRotatef (lerpdata.angles[2], 1, 0, 0);
glTranslatef (paliashdr->scale_origin[0], paliashdr->scale_origin[1], paliashdr->scale_origin[2]);
glScalef (paliashdr->scale[0], paliashdr->scale[1], paliashdr->scale[2]);
// draw it
glDepthMask(GL_FALSE);
glEnable (GL_BLEND);
GL_DisableMultitexture ();
glDisable (GL_TEXTURE_2D);
shading = false;
glColor4f(0,0,0,entalpha * 0.5);
GL_DrawAliasFrame (paliashdr, lerpdata);
glEnable (GL_TEXTURE_2D);
glDisable (GL_BLEND);
glDepthMask(GL_TRUE);
//clean up
glPopMatrix ();
}
/*
=================
R_DrawAliasModel_ShowTris -- johnfitz
=================
*/
void R_DrawAliasModel_ShowTris (entity_t *e)
{
aliashdr_t *paliashdr;
lerpdata_t lerpdata;
if (R_CullModelForEntity(e))
return;
paliashdr = (aliashdr_t *)Mod_Extradata (e->model);
R_SetupAliasFrame (paliashdr, e->frame, &lerpdata);
R_SetupEntityTransform (e, &lerpdata);
glPushMatrix ();
R_RotateForEntity (lerpdata.origin,lerpdata.angles);
glTranslatef (paliashdr->scale_origin[0], paliashdr->scale_origin[1], paliashdr->scale_origin[2]);
glScalef (paliashdr->scale[0], paliashdr->scale[1], paliashdr->scale[2]);
shading = false;
glColor3f(1,1,1);
GL_DrawAliasFrame (paliashdr, lerpdata);
glPopMatrix ();
}
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