Particle *ParticleSystemNode::createParticle(const mat4 *tf) {
Particle *p = new Particle();
float sizeD = 0.0f;
float speedD = 0.0f;
float growthD = 0.0f;
float lifeD = 0.0f;
vec3 srcD;
vec3 dstD;
vec3 dirD;
if (sizeDispersion > EPSILON) sizeD = (math::random(1.0f) - 0.5f) * sizeDispersion;
if (growthDispersion > EPSILON) growthD = (math::random(1.0f) - 0.5f) * growthDispersion;
if (speedDispersion > EPSILON) speedD = (math::random(1.0f) - 0.5f) * speedDispersion;
if (lifeTimeDispersion > EPSILON) lifeD = (math::random(1.0f) - 0.5f) * lifeTimeDispersion;
srcD = (math::random(vec3(1.0f, 1.0f, 1.0f)) - vec3(0.5f, 0.5f, 0.5f)) * srcColorDispersion;
dstD = (math::random(vec3(1.0f, 1.0f, 1.0f)) - vec3(0.5f, 0.5f, 0.5f)) * dstColorDispersion;
if (directionDispersion > EPSILON) dirD = normalize(math::random(vec3(1.0f, 1.0f, 1.0f)) - vec3(0.5f, 0.5f, 0.5f));
if (emitter == EMITTER_BOX) {
p->pos = math::random(box);
} else if (emitter == EMITTER_SPHERE) {
p->pos = math::random(sphere);
} else {
p->pos = vec3();
}
if (tf == NULL) {
p->pos = origin * p->pos;
} else {
p->pos = *tf * p->pos;
}
p->velocity = normalize(nodeDirection + (dirD - nodeDirection) * directionDispersion) * (speed + speedD);
p->size = math::max(size + sizeD, 0.001f);
p->growth = math::max(growth + growthD, 0.001f);
float ilife = lifeTime + lifeD;
if (ilife < 0.0001) {
ilife = 0.0001;
}
p->ilife = 1.0f / ilife;
p->srcColor = clampColor(srcColor + srcD);
p->dstColor = clampColor(dstColor + dstD);
p->force = vec3(0, 0, gravity);
return p;
}
VolumeSlider::VolumeSlider(QWidget *p)
: QSlider(p)
, lineWidth(0)
, shown(false)
, down(false)
, fadingStop(false)
, muteAction(0)
, menu(0)
{
widthStep=Utils::touchFriendly() ? 5 : 4;
setRange(0, 100);
setPageStep(Settings::self()->volumeStep());
lineWidth=Utils::scaleForDpi(1);
int w=lineWidth*widthStep*19;
int h=lineWidth*constHeightStep*10;
setFixedHeight(h+1);
setFixedWidth(w);
setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
setOrientation(Qt::Horizontal);
setFocusPolicy(Qt::NoFocus);
setStyle(new VolumeSliderProxyStyle());
setStyleSheet(QString("QSlider::groove:horizontal {border: 0px;} "
"QSlider::sub-page:horizontal {border: 0px;} "
"QSlider::handle:horizontal {width: 0px; height:0px; margin:0;}"));
textCol=clampColor(palette().color(QPalette::Active, QPalette::Text));
generatePixmaps();
}
void VolumeSlider::showEvent(QShowEvent *ev)
{
if (!shown) {
shown=true;
QLabel lbl(parentWidget());
lbl.ensurePolished();
QColor col=clampColor(lbl.palette().text().color());
if (col!=textCol) {
textCol=col;
generatePixmaps();
}
}
QSlider::showEvent(ev);
}
// - clamp() | clamps the component values between 0 and 1
void clamp() {
this->r = clampColor(r);
this->g = clampColor(g);
this->b = clampColor(b);
}
Color3f(float red, float green, float blue) {
r = clampColor(red);
g = clampColor(green);
b = clampColor(blue);
}
Color3f(float val) {
r = g = b = clampColor(val);
}
