2001-09-28 06:26:31 +00:00
|
|
|
/*
|
|
|
|
#FILENAME#
|
|
|
|
|
|
|
|
#DESCRIPTION#
|
|
|
|
|
|
|
|
Copyright (C) 2001 #AUTHOR#
|
|
|
|
|
|
|
|
Author: #AUTHOR#
|
|
|
|
Date: #DATE#
|
|
|
|
|
|
|
|
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:
|
|
|
|
|
|
|
|
Free Software Foundation, Inc.
|
|
|
|
59 Temple Place - Suite 330
|
|
|
|
Boston, MA 02111-1307, USA
|
|
|
|
|
|
|
|
*/
|
2001-06-19 22:05:13 +00:00
|
|
|
#ifdef HAVE_CONFIG_H
|
|
|
|
# include "config.h"
|
|
|
|
#endif
|
2003-01-15 15:31:36 +00:00
|
|
|
|
2001-06-19 22:05:13 +00:00
|
|
|
#ifdef HAVE_STRING_H
|
|
|
|
# include <string.h>
|
|
|
|
#endif
|
|
|
|
#ifdef HAVE_STRINGS_H
|
|
|
|
# include <strings.h>
|
|
|
|
#endif
|
|
|
|
|
2001-06-29 02:43:04 +00:00
|
|
|
#include "QF/cvar.h"
|
2001-05-20 20:38:51 +00:00
|
|
|
#include "QF/qtypes.h"
|
2001-05-20 05:42:52 +00:00
|
|
|
#include "QF/render.h"
|
2012-02-14 08:28:09 +00:00
|
|
|
#include "QF/sys.h"
|
2001-05-20 05:42:52 +00:00
|
|
|
|
2012-02-14 08:28:09 +00:00
|
|
|
#include "r_internal.h"
|
2001-05-20 05:42:52 +00:00
|
|
|
|
2022-03-24 03:22:27 +00:00
|
|
|
qboolean r_dowarp, r_dowarpold;
|
2001-05-20 20:38:51 +00:00
|
|
|
qboolean r_inhibit_viewmodel;
|
|
|
|
qboolean r_force_fullscreen;
|
2001-05-21 00:22:35 +00:00
|
|
|
qboolean r_paused;
|
2001-05-20 20:38:51 +00:00
|
|
|
double r_realtime;
|
2001-05-24 19:22:35 +00:00
|
|
|
double r_frametime;
|
2022-03-15 06:42:43 +00:00
|
|
|
double r_time1;
|
2001-05-22 06:00:38 +00:00
|
|
|
int r_lineadj;
|
2001-05-23 04:05:10 +00:00
|
|
|
qboolean r_active;
|
2012-02-17 09:33:07 +00:00
|
|
|
int r_init;
|
|
|
|
|
|
|
|
int r_visframecount; // bumped when going to a new PVS
|
2012-02-18 13:28:42 +00:00
|
|
|
int r_framecount = 1; // so frame counts initialized to 0 don't match
|
2012-02-17 09:33:07 +00:00
|
|
|
|
|
|
|
vec3_t modelorg; // modelorg is the viewpoint relative to
|
|
|
|
// the currently rendering entity
|
|
|
|
vec3_t base_modelorg;
|
|
|
|
vec3_t r_entorigin; // the currently rendering entity in world
|
|
|
|
// coordinates
|
|
|
|
// screen size info
|
2012-02-18 13:28:42 +00:00
|
|
|
refdef_t r_refdef;
|
2012-02-17 09:33:07 +00:00
|
|
|
|
|
|
|
int d_lightstylevalue[256]; // 8.8 fraction of base light value
|
2001-05-21 03:08:07 +00:00
|
|
|
|
2001-08-30 18:24:19 +00:00
|
|
|
byte color_white[4] = { 255, 255, 255, 0 }; // alpha will be explicitly set
|
|
|
|
byte color_black[4] = { 0, 0, 0, 0 }; // alpha will be explicitly set
|
2012-07-03 06:57:33 +00:00
|
|
|
|
|
|
|
static inline int
|
|
|
|
SignbitsForPlane (plane_t *out)
|
|
|
|
{
|
|
|
|
int bits, j;
|
|
|
|
|
|
|
|
// for fast box on planeside test
|
|
|
|
|
|
|
|
bits = 0;
|
|
|
|
for (j = 0; j < 3; j++) {
|
|
|
|
if (out->normal[j] < 0)
|
|
|
|
bits |= 1 << j;
|
|
|
|
}
|
|
|
|
return bits;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
2022-03-19 03:33:12 +00:00
|
|
|
R_SetFrustum (plane_t *frustum, const refframe_t *frame,
|
|
|
|
float fov_x, float fov_y)
|
2012-07-03 06:57:33 +00:00
|
|
|
{
|
|
|
|
int i;
|
2022-03-19 01:06:38 +00:00
|
|
|
vec4f_t right = frame->right;
|
|
|
|
vec4f_t fwd = frame->forward;
|
|
|
|
vec4f_t up = frame->up;
|
|
|
|
|
|
|
|
fov_x = 90 - fov_x / 2;
|
|
|
|
fov_y = 90 - fov_y / 2;
|
2022-03-17 02:55:58 +00:00
|
|
|
|
|
|
|
// rotate FWD right by FOV_X/2 degrees
|
2022-03-19 01:06:38 +00:00
|
|
|
RotatePointAroundVector (frustum[0].normal, &up[0], &fwd[0], -fov_x);
|
2022-03-17 02:55:58 +00:00
|
|
|
// rotate FWD left by FOV_X/2 degrees
|
2022-03-19 01:06:38 +00:00
|
|
|
RotatePointAroundVector (frustum[1].normal, &up[0], &fwd[0], fov_x);
|
2022-03-17 02:55:58 +00:00
|
|
|
// rotate FWD up by FOV_Y/2 degrees
|
2022-03-19 01:06:38 +00:00
|
|
|
RotatePointAroundVector (frustum[2].normal, &right[0], &fwd[0], fov_y);
|
2022-03-17 02:55:58 +00:00
|
|
|
// rotate FWD down by FOV_Y/2 degrees
|
2022-03-19 01:06:38 +00:00
|
|
|
RotatePointAroundVector (frustum[3].normal, &right[0], &fwd[0], -fov_y);
|
2012-07-03 06:57:33 +00:00
|
|
|
|
2022-03-19 01:06:38 +00:00
|
|
|
vec4f_t origin = frame->position;
|
2012-07-03 06:57:33 +00:00
|
|
|
for (i = 0; i < 4; i++) {
|
|
|
|
frustum[i].type = PLANE_ANYZ;
|
2022-03-07 18:47:36 +00:00
|
|
|
frustum[i].dist = DotProduct (origin, frustum[i].normal);
|
2012-07-03 06:57:33 +00:00
|
|
|
frustum[i].signbits = SignbitsForPlane (&frustum[i]);
|
|
|
|
}
|
|
|
|
}
|