static void CG_RenderPolyPool(void)
{
if (numParticlesInFrame)
{
trap_R_AddPolysToScene(atmPolyShader, 3, atmPolyPool, numParticlesInFrame);
CG_ClearPolyPool();
}
}
/*
==============
CG_DoRailDiscs
==============
*/
static void CG_DoRailDiscs( qhandle_t hShader, byte color[4], int numSegs, const vec3_t start, const vec3_t dir, const vec3_t right, const vec3_t up )
{
int i, j;
vec3_t pos[4];
vec3_t v;
int spanWidth = cg_railWidth.integer;
float c, s;
float scale;
polyVert_t verts[4];
if ( numSegs > 1 )
numSegs--;
if ( !numSegs )
return;
scale = 0.25;
for ( i = 0; i < 4; i++ )
{
c = cos( DEG2RAD( 45 + i * 90 ) );
s = sin( DEG2RAD( 45 + i * 90 ) );
v[0] = ( right[0] * c + up[0] * s ) * scale * spanWidth;
v[1] = ( right[1] * c + up[1] * s ) * scale * spanWidth;
v[2] = ( right[2] * c + up[2] * s ) * scale * spanWidth;
VectorAdd( start, v, pos[i] );
if ( numSegs > 1 )
{
// offset by 1 segment if we're doing a long distance shot
VectorAdd( pos[i], dir, pos[i] );
}
}
for ( i = 0; i < numSegs; i++ )
{
for ( j = 0; j < 4; j++ )
{
VectorCopy( pos[j], verts[j].xyz );
verts[j].st[0] = ( j && j != 3 );
verts[j].st[1] = ( j < 2 );
verts[j].modulate[0] = color[0];
verts[j].modulate[1] = color[1];
verts[j].modulate[2] = color[2];
verts[j].modulate[3] = 0xff;
VectorAdd( pos[j], dir, pos[j] );
}
trap_R_AddPolysToScene( hShader, 4, verts, 1, 0, 0 );
}
}
void CG_AddTrailToScene(trailJunc_t *trail, int iteration, int numJuncs)
{
#define MAX_TRAIL_VERTS 2048
polyVert_t verts[MAX_TRAIL_VERTS];
polyVert_t outVerts[MAX_TRAIL_VERTS * 3];
int k, i, n, l, numOutVerts;
polyVert_t mid;
float mod[4];
float sInc = 0.0f, s = 0.0f; // TTimo: init
trailJunc_t *j, *jNext;
vec3_t fwd, up, p, v;
(void)fwd; // Ignore compiler warning -- Justasic
// clipping vars
#define TRAIL_FADE_CLOSE_DIST 64.0
#define TRAIL_FADE_FAR_SCALE 4.0
vec3_t viewProj;
float viewDist, fadeAlpha;
// add spark shader at head position
if(trail->flags & TJFL_SPARKHEADFLARE)
{
j = trail;
VectorCopy(j->pos, p);
VectorMA(p, -j->width * 2, vup, p);
VectorMA(p, -j->width * 2, vright, p);
VectorCopy(p, verts[0].xyz);
verts[0].st[0] = 0;
verts[0].st[1] = 0;
verts[0].modulate[0] = 255;
verts[0].modulate[1] = 255;
verts[0].modulate[2] = 255;
verts[0].modulate[3] = (unsigned char)(j->alpha * 255.0);
VectorCopy(j->pos, p);
VectorMA(p, -j->width * 2, vup, p);
VectorMA(p, j->width * 2, vright, p);
VectorCopy(p, verts[1].xyz);
verts[1].st[0] = 0;
verts[1].st[1] = 1;
verts[1].modulate[0] = 255;
verts[1].modulate[1] = 255;
verts[1].modulate[2] = 255;
verts[1].modulate[3] = (unsigned char)(j->alpha * 255.0);
VectorCopy(j->pos, p);
VectorMA(p, j->width * 2, vup, p);
VectorMA(p, j->width * 2, vright, p);
VectorCopy(p, verts[2].xyz);
verts[2].st[0] = 1;
verts[2].st[1] = 1;
verts[2].modulate[0] = 255;
verts[2].modulate[1] = 255;
verts[2].modulate[2] = 255;
verts[2].modulate[3] = (unsigned char)(j->alpha * 255.0);
VectorCopy(j->pos, p);
VectorMA(p, j->width * 2, vup, p);
VectorMA(p, -j->width * 2, vright, p);
VectorCopy(p, verts[3].xyz);
verts[3].st[0] = 1;
verts[3].st[1] = 0;
verts[3].modulate[0] = 255;
verts[3].modulate[1] = 255;
verts[3].modulate[2] = 255;
verts[3].modulate[3] = (unsigned char)(j->alpha * 255.0);
trap_R_AddPolyToScene(cgs.media.sparkFlareShader, 4, verts);
}
// if (trail->flags & TJFL_CROSSOVER && iteration < 1) {
// iteration = 1;
// }
if(!numJuncs)
{
// first count the number of juncs in the trail
j = trail;
numJuncs = 0;
sInc = 0;
while(j)
{
numJuncs++;
// check for a dead next junc
if(!j->inuse && j->nextJunc && !j->nextJunc->inuse)
{
CG_KillTrail(j);
}
else if(j->nextJunc && j->nextJunc->freed)
{
// not sure how this can happen, but it does, and causes infinite loops
j->nextJunc = NULL;
}
if(j->nextJunc)
{
sInc += VectorDistance(j->nextJunc->pos, j->pos);
}
j = j->nextJunc;
}
}
if(numJuncs < 2)
{
return;
}
if(trail->sType == STYPE_STRETCH)
{
//sInc = ((1.0 - 0.1) / (float)(numJuncs)); // hack, the end of funnel shows a bit of the start (looping)
s = 0.05;
//s = 0.05;
}
else if(trail->sType == STYPE_REPEAT)
{
s = trail->sTex;
}
// now traverse the list
j = trail;
jNext = j->nextJunc;
i = 0;
while(jNext)
{
// first get the directional vectors to the next junc
VectorSubtract(jNext->pos, j->pos, fwd);
GetPerpendicularViewVector(cg.refdef.vieworg, j->pos, jNext->pos, up);
// if it's a crossover, draw it twice
if(j->flags & TJFL_CROSSOVER)
{
if(iteration > 0)
{
ProjectPointOntoVector(cg.refdef.vieworg, j->pos, jNext->pos, viewProj);
VectorSubtract(cg.refdef.vieworg, viewProj, v);
VectorNormalize(v);
if(iteration == 1)
{
VectorMA(up, 0.3, v, up);
}
else
{
VectorMA(up, -0.3, v, up);
}
VectorNormalize(up);
}
}
// do fading when moving towards the projection point onto the trail segment vector
else if(!(j->flags & TJFL_NOCULL) && (j->widthEnd > 4 || jNext->widthEnd > 4))
{
ProjectPointOntoVector(cg.refdef.vieworg, j->pos, jNext->pos, viewProj);
viewDist = Distance(viewProj, cg.refdef.vieworg);
if(viewDist < (TRAIL_FADE_CLOSE_DIST * TRAIL_FADE_FAR_SCALE))
{
if(viewDist < TRAIL_FADE_CLOSE_DIST)
{
fadeAlpha = 0.0;
}
else
{
fadeAlpha = (viewDist - TRAIL_FADE_CLOSE_DIST) / (TRAIL_FADE_CLOSE_DIST * TRAIL_FADE_FAR_SCALE);
}
if(fadeAlpha < j->alpha)
{
j->alpha = fadeAlpha;
}
if(fadeAlpha < jNext->alpha)
{
jNext->alpha = fadeAlpha;
}
}
}
// now output the QUAD for this segment
// 1 ----
VectorMA(j->pos, 0.5 * j->width, up, p);
VectorCopy(p, verts[i].xyz);
verts[i].st[0] = s;
verts[i].st[1] = 1.0;
for(k = 0; k < 3; k++)
verts[i].modulate[k] = (unsigned char)(j->color[k] * 255.0);
verts[i].modulate[3] = (unsigned char)(j->alpha * 255.0);
// blend this with the previous junc
if(j != trail)
{
VectorAdd(verts[i].xyz, verts[i - 1].xyz, verts[i].xyz);
VectorScale(verts[i].xyz, 0.5, verts[i].xyz);
VectorCopy(verts[i].xyz, verts[i - 1].xyz);
}
else if(j->flags & TJFL_FADEIN)
{
verts[i].modulate[3] = 0; // fade in
}
i++;
// 2 ----
VectorMA(p, -1 * j->width, up, p);
VectorCopy(p, verts[i].xyz);
verts[i].st[0] = s;
verts[i].st[1] = 0.0;
for(k = 0; k < 3; k++)
verts[i].modulate[k] = (unsigned char)(j->color[k] * 255.0);
verts[i].modulate[3] = (unsigned char)(j->alpha * 255.0);
// blend this with the previous junc
if(j != trail)
{
VectorAdd(verts[i].xyz, verts[i - 3].xyz, verts[i].xyz);
VectorScale(verts[i].xyz, 0.5, verts[i].xyz);
VectorCopy(verts[i].xyz, verts[i - 3].xyz);
}
else if(j->flags & TJFL_FADEIN)
{
verts[i].modulate[3] = 0; // fade in
}
i++;
if(trail->sType == STYPE_REPEAT)
{
s = jNext->sTex;
}
else
{
//s += sInc;
s += VectorDistance(j->pos, jNext->pos) / sInc;
if(s > 1.0)
{
s = 1.0;
}
}
// 3 ----
VectorMA(jNext->pos, -0.5 * jNext->width, up, p);
VectorCopy(p, verts[i].xyz);
verts[i].st[0] = s;
verts[i].st[1] = 0.0;
for(k = 0; k < 3; k++)
verts[i].modulate[k] = (unsigned char)(jNext->color[k] * 255.0);
verts[i].modulate[3] = (unsigned char)(jNext->alpha * 255.0);
i++;
// 4 ----
VectorMA(p, jNext->width, up, p);
VectorCopy(p, verts[i].xyz);
verts[i].st[0] = s;
verts[i].st[1] = 1.0;
for(k = 0; k < 3; k++)
verts[i].modulate[k] = (unsigned char)(jNext->color[k] * 255.0);
verts[i].modulate[3] = (unsigned char)(jNext->alpha * 255.0);
i++;
if(i + 4 > MAX_TRAIL_VERTS)
{
break;
}
j = jNext;
jNext = j->nextJunc;
}
if(trail->flags & TJFL_FIXDISTORT)
{
// build the list of outVerts, by dividing up the QUAD's into 4 Tri's each, so as to allow
// any shaped (convex) Quad without bilinear distortion
for(k = 0, numOutVerts = 0; k < i; k += 4)
{
VectorCopy(verts[k].xyz, mid.xyz);
mid.st[0] = verts[k].st[0];
mid.st[1] = verts[k].st[1];
for(l = 0; l < 4; l++)
{
mod[l] = (float)verts[k].modulate[l];
}
for(n = 1; n < 4; n++)
{
VectorAdd(verts[k + n].xyz, mid.xyz, mid.xyz);
mid.st[0] += verts[k + n].st[0];
mid.st[1] += verts[k + n].st[1];
for(l = 0; l < 4; l++)
{
mod[l] += (float)verts[k + n].modulate[l];
}
}
VectorScale(mid.xyz, 0.25, mid.xyz);
mid.st[0] *= 0.25;
mid.st[1] *= 0.25;
for(l = 0; l < 4; l++)
{
mid.modulate[l] = (unsigned char)(mod[l] / 4.0);
}
// now output the tri's
for(n = 0; n < 4; n++)
{
outVerts[numOutVerts++] = verts[k + n];
outVerts[numOutVerts++] = mid;
if(n < 3)
{
outVerts[numOutVerts++] = verts[k + n + 1];
}
else
{
outVerts[numOutVerts++] = verts[k];
}
}
}
if(!(trail->flags & TJFL_NOPOLYMERGE))
{
trap_R_AddPolysToScene(trail->shader, 3, &outVerts[0], numOutVerts / 3);
}
else
{
int k;
for(k = 0; k < numOutVerts / 3; k++)
{
trap_R_AddPolyToScene(trail->shader, 3, &outVerts[k * 3]);
}
}
}
else
{
// send the polygons
// FIXME: is it possible to send a GL_STRIP here? We are actually sending 2x the verts we really need to
if(!(trail->flags & TJFL_NOPOLYMERGE))
{
trap_R_AddPolysToScene(trail->shader, 4, &verts[0], i / 4);
}
else
{
int k;
for(k = 0; k < i / 4; k++)
{
trap_R_AddPolyToScene(trail->shader, 4, &verts[k * 4]);
}
}
}
// do we need to make another pass?
if(trail->flags & TJFL_CROSSOVER)
{
if(iteration < 2)
{
CG_AddTrailToScene(trail, iteration + 1, numJuncs);
}
}
}
/*
==============
CG_SurfaceBeam
==============
*/
void CG_SurfaceBeam( const refEntity_t *originEnt )
{
#define NUM_BEAM_SEGS 6
refEntity_t re;
int i, j;
vec3_t perpvec;
vec3_t direction, normalized_direction;
vec3_t start_points[NUM_BEAM_SEGS], end_points[NUM_BEAM_SEGS];
vec3_t oldorigin, origin;
polyVert_t verts[NUM_BEAM_SEGS*4];
int numVerts;
re = *originEnt;
oldorigin[0] = re.oldorigin[0];
oldorigin[1] = re.oldorigin[1];
oldorigin[2] = re.oldorigin[2];
origin[0] = re.origin[0];
origin[1] = re.origin[1];
origin[2] = re.origin[2];
normalized_direction[0] = direction[0] = oldorigin[0] - origin[0];
normalized_direction[1] = direction[1] = oldorigin[1] - origin[1];
normalized_direction[2] = direction[2] = oldorigin[2] - origin[2];
if ( VectorNormalize( normalized_direction ) == 0 )
return;
PerpendicularVector( perpvec, normalized_direction );
VectorScale( perpvec, 4, perpvec );
for ( i = 0; i < NUM_BEAM_SEGS ; i++ )
{
RotatePointAroundVector( start_points[i], normalized_direction, perpvec, (360.0/NUM_BEAM_SEGS)*i );
VectorAdd( start_points[i], origin, start_points[i] ); // Note: Q3A incorrectly had this disabled, causing all beams to start at map origin
VectorAdd( start_points[i], direction, end_points[i] );
}
re.customShader = cgs.media.whiteShader;
numVerts = 0;
for ( i = 0; i < NUM_BEAM_SEGS; i++ ) {
for ( j = 0; j < 4; j++ ) {
if ( j && j != 3 )
VectorCopy( end_points[ (i+(j>1)) % NUM_BEAM_SEGS], verts[numVerts].xyz );
else
VectorCopy( start_points[ (i+(j>1)) % NUM_BEAM_SEGS], verts[numVerts].xyz );
verts[numVerts].st[0] = ( j < 2 );
verts[numVerts].st[1] = ( j && j != 3 );
verts[numVerts].modulate[0] = 0xff;
verts[numVerts].modulate[1] = 0;
verts[numVerts].modulate[2] = 0;
verts[numVerts].modulate[3] = 0xff;
numVerts++;
}
}
// for acting like Q3A create a custom shader with
// cull none and blendfunc GL_ONE GL_ONE
trap_R_AddPolysToScene( re.customShader, 4, verts, NUM_BEAM_SEGS, 0, 0 );
}
void CG_Spotlight( centity_t *cent, float *color, vec3_t realstart, vec3_t lightDir, int segs, float range, int startWidth, float coneAngle, int flags ) {
int i, j;
vec3_t start, traceEnd, proj;
vec3_t right, up;
vec3_t v1, v2;
vec3_t startvec, endvec; // the vectors to rotate around lightDir to create the circles
vec3_t conevec;
vec3_t start_points[MAX_SPOT_SEGS], end_points[MAX_SPOT_SEGS];
vec3_t coreright;
polyVert_t verts[MAX_SPOT_SEGS * 4]; // x4 for 4 verts per poly
polyVert_t plugVerts[MAX_SPOT_SEGS];
vec3_t endCenter;
polyVert_t coreverts[4];
trace_t tr;
float alpha;
float radius = 0.0; // TTimo might be used uninitialized
float coreEndRadius;
qboolean capStart = qtrue;
float hitDist; // the actual distance of the trace impact (0 is no hit)
float beamLen; // actual distance of the drawn beam
float endAlpha = 0.0;
vec4_t colorNorm; // normalized color vector
refEntity_t ent;
vec3_t angles;
VectorCopy( realstart, start );
// normalize color
colorNorm[3] = 0; // store normalize multiplier in alpha index
for ( i = 0; i < 3; i++ ) {
if ( color[i] > colorNorm[3] ) {
colorNorm[3] = color[i]; // find largest color value in RGB
}
}
if ( colorNorm[3] != 1 ) { // it needs to be boosted
VectorMA( color, 1.0 / colorNorm[3], color, colorNorm ); // FIXME: div by 0
} else {
VectorCopy( color, colorNorm );
}
colorNorm[3] = color[3];
if ( flags & SL_NOSTARTCAP ) {
capStart = qfalse;
}
if ( startWidth == 0 ) { // cone, not cylinder
capStart = qfalse;
}
if ( flags & SL_LOCKTRACETORANGE ) {
VectorMA( start, range, lightDir, traceEnd ); // trace out to 'range'
} else {
VectorMA( start, MAX_SPOT_RANGE, lightDir, traceEnd ); // trace all the way out to max dist
}
// first trace to see if anything is hit
if ( flags & SL_NOTRACE ) {
tr.fraction = 1.0; // force no hit
} else {
if ( flags & SL_TRACEWORLDONLY ) {
CG_Trace( &tr, start, NULL, NULL, traceEnd, -1, CONTENTS_SOLID );
} else {
CG_Trace( &tr, start, NULL, NULL, traceEnd, -1, MASK_SHOT );
}
// CG_Trace( &tr, start, NULL, NULL, traceEnd, -1, MASK_ALL &~(CONTENTS_MONSTERCLIP|CONTENTS_AREAPORTAL|CONTENTS_CLUSTERPORTAL));
}
if ( tr.fraction < 1.0 ) {
hitDist = beamLen = MAX_SPOT_RANGE * tr.fraction;
if ( beamLen > range ) {
beamLen = range;
}
} else {
hitDist = 0;
beamLen = range;
}
if ( flags & SL_LOCKUV ) {
if ( beamLen < range ) {
endAlpha = 255.0f * ( color[3] - ( color[3] * beamLen / range ) );
}
}
if ( segs >= MAX_SPOT_SEGS ) {
segs = MAX_SPOT_SEGS - 1;
}
// TODO: adjust segs based on r_lodbias
// TODO: move much of this to renderer
// model at base
if ( cent->currentState.modelindex ) {
memset( &ent, 0, sizeof( ent ) );
ent.frame = 0;
ent.oldframe = 0;
ent.backlerp = 0;
VectorCopy( cent->lerpOrigin, ent.origin );
VectorCopy( cent->lerpOrigin, ent.oldorigin );
ent.hModel = cgs.gameModels[cent->currentState.modelindex];
// AnglesToAxis( cent->lerpAngles, ent.axis );
vectoangles( lightDir, angles );
AnglesToAxis( angles, ent.axis );
trap_R_AddRefEntityToScene( &ent );
memcpy( ¢->refEnt, &ent, sizeof( refEntity_t ) );
// push start out a bit so the beam fits to the front of the base model
VectorMA( start, 14, lightDir, start );
}
//// BEAM
PerpendicularVector( up, lightDir );
CrossProduct( lightDir, up, right );
// find first vert of the start
VectorScale( right, startWidth, startvec );
// find the first vert of the end
RotatePointAroundVector( conevec, up, lightDir, -coneAngle );
VectorMA( startvec, beamLen, conevec, endvec ); // this applies the offset of the start diameter before finding the end points
VectorScale( lightDir, beamLen, endCenter );
VectorSubtract( endCenter, endvec, coreverts[3].xyz ); // get a vector of the radius out at the end for the core to use
coreEndRadius = VectorLength( coreverts[3].xyz );
#define CORESCALE 0.6f
//
// generate the flat beam 'core'
//
if ( !( flags & SL_NOCORE ) ) {
VectorSubtract( start, cg.refdef.vieworg, v1 );
VectorNormalize( v1 );
VectorSubtract( traceEnd, cg.refdef.vieworg, v2 );
VectorNormalize( v2 );
CrossProduct( v1, v2, coreright );
VectorNormalize( coreright );
memset( &coreverts[0], 0, 4 * sizeof( polyVert_t ) );
VectorMA( start, startWidth * 0.5f, coreright, coreverts[0].xyz );
VectorMA( start, -startWidth * 0.5f, coreright, coreverts[1].xyz );
VectorMA( endCenter, -coreEndRadius * CORESCALE, coreright, coreverts[2].xyz );
VectorAdd( start, coreverts[2].xyz, coreverts[2].xyz );
VectorMA( endCenter, coreEndRadius * CORESCALE, coreright, coreverts[3].xyz );
VectorAdd( start, coreverts[3].xyz, coreverts[3].xyz );
for ( i = 0; i < 4; i++ ) {
coreverts[i].modulate[0] = color[0] * 200.0f;
coreverts[i].modulate[1] = color[1] * 200.0f;
coreverts[i].modulate[2] = color[2] * 200.0f;
coreverts[i].modulate[3] = color[3] * 200.0f;
if ( i > 1 ) {
coreverts[i].modulate[3] = 0;
}
}
trap_R_AddPolyToScene( cgs.media.spotLightBeamShader, 4, &coreverts[0] );
}
//
// generate the beam cylinder
//
for ( i = 0; i <= segs; i++ ) {
RotatePointAroundVector( start_points[i], lightDir, startvec, ( 360.0f / (float)segs ) * i );
VectorAdd( start_points[i], start, start_points[i] );
RotatePointAroundVector( end_points[i], lightDir, endvec, ( 360.0f / (float)segs ) * i );
VectorAdd( end_points[i], start, end_points[i] );
}
for ( i = 0; i < segs; i++ ) {
j = ( i * 4 );
VectorCopy( start_points[i], verts[( i * 4 )].xyz );
verts[j].st[0] = 0;
verts[j].st[1] = 1;
verts[j].modulate[0] = color[0] * 255.0f;
verts[j].modulate[1] = color[1] * 255.0f;
verts[j].modulate[2] = color[2] * 255.0f;
verts[j].modulate[3] = color[3] * 255.0f;
j++;
VectorCopy( end_points[i], verts[j].xyz );
verts[j].st[0] = 0;
verts[j].st[1] = 0;
verts[j].modulate[0] = color[0] * 255.0f;
verts[j].modulate[1] = color[1] * 255.0f;
verts[j].modulate[2] = color[2] * 255.0f;
verts[j].modulate[3] = endAlpha;
j++;
VectorCopy( end_points[i + 1], verts[j].xyz );
verts[j].st[0] = 1;
verts[j].st[1] = 0;
verts[j].modulate[0] = color[0] * 255.0f;
verts[j].modulate[1] = color[1] * 255.0f;
verts[j].modulate[2] = color[2] * 255.0f;
verts[j].modulate[3] = endAlpha;
j++;
VectorCopy( start_points[i + 1], verts[j].xyz );
verts[j].st[0] = 1;
verts[j].st[1] = 1;
verts[j].modulate[0] = color[0] * 255.0f;
verts[j].modulate[1] = color[1] * 255.0f;
verts[j].modulate[2] = color[2] * 255.0f;
verts[j].modulate[3] = color[3] * 255.0f;
if ( capStart ) {
VectorCopy( start_points[i], plugVerts[i].xyz );
plugVerts[i].st[0] = 0;
plugVerts[i].st[1] = 0;
plugVerts[i].modulate[0] = color[0] * 255.0f;
plugVerts[i].modulate[1] = color[1] * 255.0f;
plugVerts[i].modulate[2] = color[2] * 255.0f;
plugVerts[i].modulate[3] = color[3] * 255.0f;
}
}
trap_R_AddPolysToScene( cgs.media.spotLightBeamShader, 4, &verts[0], segs );
// plug up the start circle
if ( capStart ) {
trap_R_AddPolyToScene( cgs.media.spotLightBeamShader, segs, &plugVerts[0] );
}
// show the endpoint
if ( !( flags & SL_NOIMPACT ) ) {
if ( hitDist ) {
VectorMA( startvec, hitDist, conevec, endvec );
alpha = 0.3f;
radius = coreEndRadius * ( hitDist / beamLen );
VectorNegate( lightDir, proj );
CG_ImpactMark( cgs.media.spotLightShader, tr.endpos, proj, 0, colorNorm[0], colorNorm[1], colorNorm[2], alpha, qfalse, radius, qtrue, -1 );
}
}
// add d light at end
if ( !( flags & SL_NODLIGHT ) ) {
vec3_t dlightLoc;
// VectorMA(tr.endpos, -60, lightDir, dlightLoc); // back away from the hit
// trap_R_AddLightToScene(dlightLoc, 200, colorNorm[0], colorNorm[1], colorNorm[2], 0); // ,REF_JUNIOR_DLIGHT);
VectorMA( tr.endpos, 0, lightDir, dlightLoc ); // back away from the hit
// trap_R_AddLightToScene(dlightLoc, radius*2, colorNorm[0], colorNorm[1], colorNorm[2], 0); // ,REF_JUNIOR_DLIGHT);
trap_R_AddLightToScene( dlightLoc, radius * 2, 0.3, 0.3, 0.3, 0 ); // ,REF_JUNIOR_DLIGHT);
}
// draw flare at source
if ( !( flags & SL_NOFLARE ) ) {
qboolean lightInEyes = qfalse;
vec3_t camloc, dirtolight;
float dot, deg, dist;
float flarescale = 0.0; // TTimo: might be used uninitialized
// get camera position and direction to lightsource
VectorCopy( cg.snap->ps.origin, camloc );
camloc[2] += cg.snap->ps.viewheight;
VectorSubtract( start, camloc, dirtolight );
dist = VectorNormalize( dirtolight );
// first use dot to determine if it's facing the camera
dot = DotProduct( lightDir, dirtolight );
// it's facing the camera, find out how closely and trace to see if the source can be seen
deg = RAD2DEG( M_PI - acos( dot ) );
if ( deg <= 35 ) { // start flare a bit before the camera gets inside the cylinder
lightInEyes = qtrue;
flarescale = 1 - ( deg / 35 );
}
if ( lightInEyes ) { // the dot check succeeded, now do a trace
CG_Trace( &tr, start, NULL, NULL, camloc, -1, MASK_ALL & ~( CONTENTS_MONSTERCLIP | CONTENTS_AREAPORTAL | CONTENTS_CLUSTERPORTAL ) );
if ( tr.fraction != 1 ) {
lightInEyes = qfalse;
}
}
if ( lightInEyes ) {
float coronasize = flarescale;
if ( dist < 512 ) { // make even bigger if you're close enough
coronasize *= ( 512.0f / dist );
}
trap_R_AddCoronaToScene( start, colorNorm[0], colorNorm[1], colorNorm[2], coronasize, cent->currentState.number, qtrue );
} else {
// even though it's off, still need to add it, but turned off so it can fade in/out properly
trap_R_AddCoronaToScene( start, colorNorm[0], colorNorm[1], colorNorm[2], 0, cent->currentState.number, qfalse );
}
}
}
/*
===============
CG_RenderBeam
Renders a beam
===============
*/
static void CG_RenderBeam( trailBeam_t *tb )
{
trailBeamNode_t *i = nullptr;
trailBeamNode_t *prev = nullptr;
trailBeamNode_t *next = nullptr;
vec3_t up;
polyVert_t verts[( MAX_TRAIL_BEAM_NODES - 1 ) * 4 ];
int numVerts = 0;
baseTrailBeam_t *btb;
trailSystem_t *ts;
baseTrailSystem_t *bts;
if ( !tb || !tb->nodes )
{
return;
}
btb = tb->class_;
ts = tb->parent;
bts = ts->class_;
if ( bts->thirdPersonOnly &&
( CG_AttachmentCentNum( &ts->frontAttachment ) == cg.snap->ps.clientNum ||
CG_AttachmentCentNum( &ts->backAttachment ) == cg.snap->ps.clientNum ) &&
!cg.renderingThirdPerson )
{
return;
}
CG_CalculateBeamNodeProperties( tb );
i = tb->nodes;
do
{
prev = i->prev;
next = i->next;
if ( prev && next )
{
//this node has two neighbours
GetPerpendicularViewVector( cg.refdef.vieworg, next->position, prev->position, up );
}
else if ( !prev && next )
{
//this is the front
GetPerpendicularViewVector( cg.refdef.vieworg, next->position, i->position, up );
}
else if ( prev && !next )
{
//this is the back
GetPerpendicularViewVector( cg.refdef.vieworg, i->position, prev->position, up );
}
else
{
break;
}
if ( prev )
{
VectorMA( i->position, i->halfWidth, up, verts[ numVerts ].xyz );
verts[ numVerts ].st[ 0 ] = i->textureCoord;
verts[ numVerts ].st[ 1 ] = 1.0f;
if ( btb->realLight )
{
CG_LightVertex( verts[ numVerts ].xyz, i->alpha, verts[ numVerts ].modulate );
}
else
{
VectorCopy( i->color, verts[ numVerts ].modulate );
verts[ numVerts ].modulate[ 3 ] = i->alpha;
}
numVerts++;
VectorMA( i->position, -i->halfWidth, up, verts[ numVerts ].xyz );
verts[ numVerts ].st[ 0 ] = i->textureCoord;
verts[ numVerts ].st[ 1 ] = 0.0f;
if ( btb->realLight )
{
CG_LightVertex( verts[ numVerts ].xyz, i->alpha, verts[ numVerts ].modulate );
}
else
{
VectorCopy( i->color, verts[ numVerts ].modulate );
verts[ numVerts ].modulate[ 3 ] = i->alpha;
}
numVerts++;
}
if ( next )
{
VectorMA( i->position, -i->halfWidth, up, verts[ numVerts ].xyz );
verts[ numVerts ].st[ 0 ] = i->textureCoord;
verts[ numVerts ].st[ 1 ] = 0.0f;
if ( btb->realLight )
{
CG_LightVertex( verts[ numVerts ].xyz, i->alpha, verts[ numVerts ].modulate );
}
else
{
VectorCopy( i->color, verts[ numVerts ].modulate );
verts[ numVerts ].modulate[ 3 ] = i->alpha;
}
numVerts++;
VectorMA( i->position, i->halfWidth, up, verts[ numVerts ].xyz );
verts[ numVerts ].st[ 0 ] = i->textureCoord;
verts[ numVerts ].st[ 1 ] = 1.0f;
if ( btb->realLight )
{
CG_LightVertex( verts[ numVerts ].xyz, i->alpha, verts[ numVerts ].modulate );
}
else
{
VectorCopy( i->color, verts[ numVerts ].modulate );
verts[ numVerts ].modulate[ 3 ] = i->alpha;
}
numVerts++;
}
if( btb->dynamicLight ) {
trap_R_AddLightToScene( i->position,
btb->dLightRadius,
3,
( float ) btb->dLightColor[ 0 ] / ( float ) 0xFF,
( float ) btb->dLightColor[ 1 ] / ( float ) 0xFF,
( float ) btb->dLightColor[ 2 ] / ( float ) 0xFF, 0, 0 );
}
i = i->next;
}
while ( i );
trap_R_AddPolysToScene( tb->class_->shader, 4, &verts[ 0 ], numVerts / 4 );
}
