/*
================
R_BeginDrawMirror
Setup texture matrix for mirror texture
================
*/
void R_BeginDrawMirror( msurface_t *fa )
{
matrix4x4 m1, m2, matrix;
GLfloat genVector[4][4];
mextrasurf_t *es;
int i;
es = SURF_INFO( fa, RI.currentmodel );
Matrix4x4_Copy( matrix, es->mirrormatrix );
Matrix4x4_LoadIdentity( m1 );
Matrix4x4_ConcatScale( m1, 0.5f );
Matrix4x4_Concat( m2, m1, matrix );
Matrix4x4_LoadIdentity( m1 );
Matrix4x4_ConcatTranslate( m1, 0.5f, 0.5f, 0.5f );
Matrix4x4_Concat( matrix, m1, m2 );
for( i = 0; i < 4; i++ )
{
genVector[0][i] = i == 0 ? 1 : 0;
genVector[1][i] = i == 1 ? 1 : 0;
genVector[2][i] = i == 2 ? 1 : 0;
genVector[3][i] = i == 3 ? 1 : 0;
}
GL_TexGen( GL_S, GL_OBJECT_LINEAR );
GL_TexGen( GL_T, GL_OBJECT_LINEAR );
GL_TexGen( GL_R, GL_OBJECT_LINEAR );
GL_TexGen( GL_Q, GL_OBJECT_LINEAR );
pglTexGenfv( GL_S, GL_OBJECT_PLANE, genVector[0] );
pglTexGenfv( GL_T, GL_OBJECT_PLANE, genVector[1] );
pglTexGenfv( GL_R, GL_OBJECT_PLANE, genVector[2] );
pglTexGenfv( GL_Q, GL_OBJECT_PLANE, genVector[3] );
GL_LoadTexMatrix( matrix );
}
/*
* State:
* cl.bob2_smooth
* cl.bobfall_speed
* cl.bobfall_swing
* cl.gunangles_adjustment_highpass
* cl.gunangles_adjustment_lowpass
* cl.gunangles_highpass
* cl.gunangles_prev
* cl.gunorg_adjustment_highpass
* cl.gunorg_adjustment_lowpass
* cl.gunorg_highpass
* cl.gunorg_prev
* cl.hitgroundtime
* cl.lastongroundtime
* cl.oldongrounbd
* cl.stairsmoothtime
* cl.stairsmoothz
* cl.calcrefdef_prevtime
* Extra input:
* cl.movecmd[0].time
* cl.movevars_stepheight
* cl.movevars_timescale
* cl.oldtime
* cl.punchangle
* cl.punchvector
* cl.qw_intermission_angles
* cl.qw_intermission_origin
* cl.qw_weaponkick
* cls.protocol
* cl.time
* Output:
* cl.csqc_viewanglesfromengine
* cl.csqc_viewmodelmatrixfromengine
* cl.csqc_vieworiginfromengine
* r_refdef.view.matrix
* viewmodelmatrix_nobob
* viewmodelmatrix_withbob
*/
void V_CalcRefdefUsing (const matrix4x4_t *entrendermatrix, const vec3_t clviewangles, qboolean teleported, qboolean clonground, qboolean clcmdjump, float clstatsviewheight, qboolean cldead, qboolean clintermission, const vec3_t clvelocity)
{
float vieworg[3], viewangles[3], smoothtime;
float gunorg[3], gunangles[3];
matrix4x4_t tmpmatrix;
static float viewheightavg;
float viewheight;
#if 0
// begin of chase camera bounding box size for proper collisions by Alexander Zubov
vec3_t camboxmins = {-3, -3, -3};
vec3_t camboxmaxs = {3, 3, 3};
// end of chase camera bounding box size for proper collisions by Alexander Zubov
#endif
trace_t trace;
// react to clonground state changes (for gun bob)
if (clonground)
{
if (!cl.oldonground)
cl.hitgroundtime = cl.movecmd[0].time;
cl.lastongroundtime = cl.movecmd[0].time;
}
cl.oldonground = clonground;
cl.calcrefdef_prevtime = max(cl.calcrefdef_prevtime, cl.oldtime);
VectorClear(gunorg);
viewmodelmatrix_nobob = identitymatrix;
viewmodelmatrix_withbob = identitymatrix;
r_refdef.view.matrix = identitymatrix;
// player can look around, so take the origin from the entity,
// and the angles from the input system
Matrix4x4_OriginFromMatrix(entrendermatrix, vieworg);
VectorCopy(clviewangles, viewangles);
// calculate how much time has passed since the last V_CalcRefdef
smoothtime = bound(0, cl.time - cl.stairsmoothtime, 0.1);
cl.stairsmoothtime = cl.time;
// fade damage flash
if (v_dmg_time > 0)
v_dmg_time -= bound(0, smoothtime, 0.1);
if (clintermission)
{
// entity is a fixed camera, just copy the matrix
if (cls.protocol == PROTOCOL_QUAKEWORLD)
Matrix4x4_CreateFromQuakeEntity(&r_refdef.view.matrix, cl.qw_intermission_origin[0], cl.qw_intermission_origin[1], cl.qw_intermission_origin[2], cl.qw_intermission_angles[0], cl.qw_intermission_angles[1], cl.qw_intermission_angles[2], 1);
else
{
r_refdef.view.matrix = *entrendermatrix;
Matrix4x4_AdjustOrigin(&r_refdef.view.matrix, 0, 0, clstatsviewheight);
}
Matrix4x4_Copy(&viewmodelmatrix_nobob, &r_refdef.view.matrix);
Matrix4x4_ConcatScale(&viewmodelmatrix_nobob, cl_viewmodel_scale.value);
Matrix4x4_Copy(&viewmodelmatrix_withbob, &viewmodelmatrix_nobob);
VectorCopy(vieworg, cl.csqc_vieworiginfromengine);
VectorCopy(viewangles, cl.csqc_viewanglesfromengine);
Matrix4x4_Invert_Simple(&tmpmatrix, &r_refdef.view.matrix);
Matrix4x4_CreateScale(&cl.csqc_viewmodelmatrixfromengine, cl_viewmodel_scale.value);
}
else
{
// smooth stair stepping, but only if clonground and enabled
if (!clonground || cl_stairsmoothspeed.value <= 0 || teleported)
cl.stairsmoothz = vieworg[2];
else
{
if (cl.stairsmoothz < vieworg[2])
vieworg[2] = cl.stairsmoothz = bound(vieworg[2] - cl.movevars_stepheight, cl.stairsmoothz + smoothtime * cl_stairsmoothspeed.value, vieworg[2]);
else if (cl.stairsmoothz > vieworg[2])
vieworg[2] = cl.stairsmoothz = bound(vieworg[2], cl.stairsmoothz - smoothtime * cl_stairsmoothspeed.value, vieworg[2] + cl.movevars_stepheight);
}
// apply qw weapon recoil effect (this did not work in QW)
// TODO: add a cvar to disable this
viewangles[PITCH] += cl.qw_weaponkick;
// apply the viewofs (even if chasecam is used)
// Samual: Lets add smoothing for this too so that things like crouching are done with a transition.
viewheight = bound(0, (cl.time - cl.calcrefdef_prevtime) / max(0.0001, cl_smoothviewheight.value), 1);
viewheightavg = viewheightavg * (1 - viewheight) + clstatsviewheight * viewheight;
vieworg[2] += viewheightavg;
if (chase_active.value)
{
// observing entity from third person. Added "campitch" by Alexander "motorsep" Zubov
vec_t camback, camup, dist, campitch, forward[3], chase_dest[3];
camback = chase_back.value;
camup = chase_up.value;
campitch = chase_pitchangle.value;
AngleVectors(viewangles, forward, NULL, NULL);
if (chase_overhead.integer)
{
#if 1
vec3_t offset;
vec3_t bestvieworg;
#endif
vec3_t up;
viewangles[PITCH] = 0;
AngleVectors(viewangles, forward, NULL, up);
// trace a little further so it hits a surface more consistently (to avoid 'snapping' on the edge of the range)
chase_dest[0] = vieworg[0] - forward[0] * camback + up[0] * camup;
chase_dest[1] = vieworg[1] - forward[1] * camback + up[1] * camup;
chase_dest[2] = vieworg[2] - forward[2] * camback + up[2] * camup;
#if 0
#if 1
//trace = CL_TraceLine(vieworg, eyeboxmins, eyeboxmaxs, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false);
trace = CL_TraceLine(vieworg, camboxmins, camboxmaxs, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false);
#else
//trace = CL_TraceBox(vieworg, eyeboxmins, eyeboxmaxs, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false);
trace = CL_TraceBox(vieworg, camboxmins, camboxmaxs, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false);
#endif
VectorCopy(trace.endpos, vieworg);
vieworg[2] -= 8;
#else
// trace from first person view location to our chosen third person view location
#if 1
trace = CL_TraceLine(vieworg, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false, true);
#else
trace = CL_TraceBox(vieworg, camboxmins, camboxmaxs, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false);
#endif
VectorCopy(trace.endpos, bestvieworg);
offset[2] = 0;
for (offset[0] = -16;offset[0] <= 16;offset[0] += 8)
{
for (offset[1] = -16;offset[1] <= 16;offset[1] += 8)
{
AngleVectors(viewangles, NULL, NULL, up);
chase_dest[0] = vieworg[0] - forward[0] * camback + up[0] * camup + offset[0];
chase_dest[1] = vieworg[1] - forward[1] * camback + up[1] * camup + offset[1];
chase_dest[2] = vieworg[2] - forward[2] * camback + up[2] * camup + offset[2];
#if 1
trace = CL_TraceLine(vieworg, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false, true);
#else
trace = CL_TraceBox(vieworg, camboxmins, camboxmaxs, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false);
#endif
if (bestvieworg[2] > trace.endpos[2])
bestvieworg[2] = trace.endpos[2];
}
}
bestvieworg[2] -= 8;
VectorCopy(bestvieworg, vieworg);
#endif
viewangles[PITCH] = campitch;
}
else
{
if (gamemode == GAME_GOODVSBAD2 && chase_stevie.integer)
{
// look straight down from high above
viewangles[PITCH] = 90;
camback = 2048;
VectorSet(forward, 0, 0, -1);
}
// trace a little further so it hits a surface more consistently (to avoid 'snapping' on the edge of the range)
dist = -camback - 8;
chase_dest[0] = vieworg[0] + forward[0] * dist;
chase_dest[1] = vieworg[1] + forward[1] * dist;
chase_dest[2] = vieworg[2] + forward[2] * dist + camup;
trace = CL_TraceLine(vieworg, chase_dest, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, true, false, NULL, false, true);
VectorMAMAM(1, trace.endpos, 8, forward, 4, trace.plane.normal, vieworg);
}
}
else
{
// first person view from entity
// angles
if (cldead && v_deathtilt.integer)
viewangles[ROLL] = v_deathtiltangle.value;
if (cl_weaponrecoil.integer > 0)
VectorAdd(viewangles, cl.punchangle, viewangles);
viewangles[ROLL] += V_CalcRoll(clviewangles, clvelocity);
if (v_dmg_time > 0)
{
viewangles[ROLL] += v_dmg_time/v_kicktime.value*v_dmg_roll;
viewangles[PITCH] += v_dmg_time/v_kicktime.value*v_dmg_pitch;
}
// origin
if (cl_weaponrecoil.integer > 0)
VectorAdd(vieworg, cl.punchvector, vieworg);
if (!cldead)
{
double xyspeed, bob, bobfall;
float cycle;
vec_t frametime;
frametime = (cl.time - cl.calcrefdef_prevtime) * cl.movevars_timescale;
// 1. if we teleported, clear the frametime... the lowpass will recover the previous value then
if(teleported)
{
// try to fix the first highpass; result is NOT
// perfect! TODO find a better fix
VectorCopy(viewangles, cl.gunangles_prev);
VectorCopy(vieworg, cl.gunorg_prev);
}
// 2. for the gun origin, only keep the high frequency (non-DC) parts, which is "somewhat like velocity"
VectorAdd(cl.gunorg_highpass, cl.gunorg_prev, cl.gunorg_highpass);
highpass3_limited(vieworg, frametime*cl_followmodel_side_highpass1.value, cl_followmodel_side_limit.value, frametime*cl_followmodel_side_highpass1.value, cl_followmodel_side_limit.value, frametime*cl_followmodel_up_highpass1.value, cl_followmodel_up_limit.value, cl.gunorg_highpass, gunorg);
VectorCopy(vieworg, cl.gunorg_prev);
VectorSubtract(cl.gunorg_highpass, cl.gunorg_prev, cl.gunorg_highpass);
// in the highpass, we _store_ the DIFFERENCE to the actual view angles...
VectorAdd(cl.gunangles_highpass, cl.gunangles_prev, cl.gunangles_highpass);
cl.gunangles_highpass[PITCH] += 360 * floor((viewangles[PITCH] - cl.gunangles_highpass[PITCH]) / 360 + 0.5);
cl.gunangles_highpass[YAW] += 360 * floor((viewangles[YAW] - cl.gunangles_highpass[YAW]) / 360 + 0.5);
cl.gunangles_highpass[ROLL] += 360 * floor((viewangles[ROLL] - cl.gunangles_highpass[ROLL]) / 360 + 0.5);
highpass3_limited(viewangles, frametime*cl_leanmodel_up_highpass1.value, cl_leanmodel_up_limit.value, frametime*cl_leanmodel_side_highpass1.value, cl_leanmodel_side_limit.value, 0, 0, cl.gunangles_highpass, gunangles);
VectorCopy(viewangles, cl.gunangles_prev);
VectorSubtract(cl.gunangles_highpass, cl.gunangles_prev, cl.gunangles_highpass);
// 3. calculate the RAW adjustment vectors
gunorg[0] *= (cl_followmodel.value ? -cl_followmodel_side_speed.value : 0);
gunorg[1] *= (cl_followmodel.value ? -cl_followmodel_side_speed.value : 0);
gunorg[2] *= (cl_followmodel.value ? -cl_followmodel_up_speed.value : 0);
gunangles[PITCH] *= (cl_leanmodel.value ? -cl_leanmodel_up_speed.value : 0);
gunangles[YAW] *= (cl_leanmodel.value ? -cl_leanmodel_side_speed.value : 0);
gunangles[ROLL] = 0;
// 4. perform highpass/lowpass on the adjustment vectors (turning velocity into acceleration!)
// trick: we must do the lowpass LAST, so the lowpass vector IS the final vector!
highpass3(gunorg, frametime*cl_followmodel_side_highpass.value, frametime*cl_followmodel_side_highpass.value, frametime*cl_followmodel_up_highpass.value, cl.gunorg_adjustment_highpass, gunorg);
lowpass3(gunorg, frametime*cl_followmodel_side_lowpass.value, frametime*cl_followmodel_side_lowpass.value, frametime*cl_followmodel_up_lowpass.value, cl.gunorg_adjustment_lowpass, gunorg);
// we assume here: PITCH = 0, YAW = 1, ROLL = 2
highpass3(gunangles, frametime*cl_leanmodel_up_highpass.value, frametime*cl_leanmodel_side_highpass.value, 0, cl.gunangles_adjustment_highpass, gunangles);
lowpass3(gunangles, frametime*cl_leanmodel_up_lowpass.value, frametime*cl_leanmodel_side_lowpass.value, 0, cl.gunangles_adjustment_lowpass, gunangles);
// 5. use the adjusted vectors
VectorAdd(vieworg, gunorg, gunorg);
VectorAdd(viewangles, gunangles, gunangles);
// bounded XY speed, used by several effects below
xyspeed = bound (0, sqrt(clvelocity[0]*clvelocity[0] + clvelocity[1]*clvelocity[1]), 400);
// vertical view bobbing code
if (cl_bob.value && cl_bobcycle.value)
{
// LordHavoc: this code is *weird*, but not replacable (I think it
// should be done in QC on the server, but oh well, quake is quake)
// LordHavoc: figured out bobup: the time at which the sin is at 180
// degrees (which allows lengthening or squishing the peak or valley)
cycle = cl.time / cl_bobcycle.value;
cycle -= (int) cycle;
if (cycle < cl_bobup.value)
cycle = sin(M_PI * cycle / cl_bobup.value);
else
cycle = sin(M_PI + M_PI * (cycle-cl_bobup.value)/(1.0 - cl_bobup.value));
// bob is proportional to velocity in the xy plane
// (don't count Z, or jumping messes it up)
bob = xyspeed * bound(0, cl_bob.value, 0.05);
bob = bob*0.3 + bob*0.7*cycle;
vieworg[2] += bob;
// we also need to adjust gunorg, or this appears like pushing the gun!
// In the old code, this was applied to vieworg BEFORE copying to gunorg,
// but this is not viable with the new followmodel code as that would mean
// that followmodel would work on the munged-by-bob vieworg and do feedback
gunorg[2] += bob;
}
// horizontal view bobbing code
if (cl_bob2.value && cl_bob2cycle.value)
{
vec3_t bob2vel;
vec3_t forward, right, up;
float side, front;
cycle = cl.time / cl_bob2cycle.value;
cycle -= (int) cycle;
if (cycle < 0.5)
cycle = cos(M_PI * cycle / 0.5); // cos looks better here with the other view bobbing using sin
else
cycle = cos(M_PI + M_PI * (cycle-0.5)/0.5);
bob = bound(0, cl_bob2.value, 0.05) * cycle;
// this value slowly decreases from 1 to 0 when we stop touching the ground.
// The cycle is later multiplied with it so the view smooths back to normal
if (clonground && !clcmdjump) // also block the effect while the jump button is pressed, to avoid twitches when bunny-hopping
cl.bob2_smooth = 1;
else
{
if(cl.bob2_smooth > 0)
cl.bob2_smooth -= bound(0, cl_bob2smooth.value, 1);
else
cl.bob2_smooth = 0;
}
// calculate the front and side of the player between the X and Y axes
AngleVectors(viewangles, forward, right, up);
// now get the speed based on those angles. The bounds should match the same value as xyspeed's
side = bound(-400, DotProduct (clvelocity, right) * cl.bob2_smooth, 400);
front = bound(-400, DotProduct (clvelocity, forward) * cl.bob2_smooth, 400);
VectorScale(forward, bob, forward);
VectorScale(right, bob, right);
// we use side with forward and front with right, so the bobbing goes
// to the side when we walk forward and to the front when we strafe
VectorMAMAM(side, forward, front, right, 0, up, bob2vel);
vieworg[0] += bob2vel[0];
vieworg[1] += bob2vel[1];
// we also need to adjust gunorg, or this appears like pushing the gun!
// In the old code, this was applied to vieworg BEFORE copying to gunorg,
// but this is not viable with the new followmodel code as that would mean
// that followmodel would work on the munged-by-bob vieworg and do feedback
gunorg[0] += bob2vel[0];
gunorg[1] += bob2vel[1];
}
// fall bobbing code
// causes the view to swing down and back up when touching the ground
if (cl_bobfall.value && cl_bobfallcycle.value)
{
if (!clonground)
{
cl.bobfall_speed = bound(-400, clvelocity[2], 0) * bound(0, cl_bobfall.value, 0.1);
if (clvelocity[2] < -cl_bobfallminspeed.value)
cl.bobfall_swing = 1;
else
cl.bobfall_swing = 0; // TODO really?
}
else
{
cl.bobfall_swing = max(0, cl.bobfall_swing - cl_bobfallcycle.value * frametime);
bobfall = sin(M_PI * cl.bobfall_swing) * cl.bobfall_speed;
vieworg[2] += bobfall;
gunorg[2] += bobfall;
}
}
// gun model bobbing code
if (cl_bobmodel.value)
{
// calculate for swinging gun model
// the gun bobs when running on the ground, but doesn't bob when you're in the air.
// Sajt: I tried to smooth out the transitions between bob and no bob, which works
// for the most part, but for some reason when you go through a message trigger or
// pick up an item or anything like that it will momentarily jolt the gun.
vec3_t forward, right, up;
float bspeed;
float s;
float t;
s = cl.time * cl_bobmodel_speed.value;
if (clonground)
{
if (cl.time - cl.hitgroundtime < 0.2)
{
// just hit the ground, speed the bob back up over the next 0.2 seconds
t = cl.time - cl.hitgroundtime;
t = bound(0, t, 0.2);
t *= 5;
}
else
t = 1;
}
else
{
// recently left the ground, slow the bob down over the next 0.2 seconds
t = cl.time - cl.lastongroundtime;
t = 0.2 - bound(0, t, 0.2);
t *= 5;
}
bspeed = xyspeed * 0.01f;
AngleVectors (gunangles, forward, right, up);
bob = bspeed * cl_bobmodel_side.value * cl_viewmodel_scale.value * sin (s) * t;
VectorMA (gunorg, bob, right, gunorg);
bob = bspeed * cl_bobmodel_up.value * cl_viewmodel_scale.value * cos (s * 2) * t;
VectorMA (gunorg, bob, up, gunorg);
}
}
}
// calculate a view matrix for rendering the scene
if (v_idlescale.value)
{
viewangles[0] += v_idlescale.value * sin(cl.time*v_ipitch_cycle.value) * v_ipitch_level.value;
viewangles[1] += v_idlescale.value * sin(cl.time*v_iyaw_cycle.value) * v_iyaw_level.value;
viewangles[2] += v_idlescale.value * sin(cl.time*v_iroll_cycle.value) * v_iroll_level.value;
}
Matrix4x4_CreateFromQuakeEntity(&r_refdef.view.matrix, vieworg[0], vieworg[1], vieworg[2], viewangles[0], viewangles[1], viewangles[2], 1);
// calculate a viewmodel matrix for use in view-attached entities
Matrix4x4_Copy(&viewmodelmatrix_nobob, &r_refdef.view.matrix);
Matrix4x4_ConcatScale(&viewmodelmatrix_nobob, cl_viewmodel_scale.value);
Matrix4x4_CreateFromQuakeEntity(&viewmodelmatrix_withbob, gunorg[0], gunorg[1], gunorg[2], gunangles[0], gunangles[1], gunangles[2], cl_viewmodel_scale.value);
VectorCopy(vieworg, cl.csqc_vieworiginfromengine);
VectorCopy(viewangles, cl.csqc_viewanglesfromengine);
Matrix4x4_Invert_Simple(&tmpmatrix, &r_refdef.view.matrix);
Matrix4x4_Concat(&cl.csqc_viewmodelmatrixfromengine, &tmpmatrix, &viewmodelmatrix_withbob);
}
cl.calcrefdef_prevtime = cl.time;
}