int inter_cone_shadow(t_object *obj, t_spobject *lum)
{
t_inter i;
protate(lum, obj);
translate1(obj, lum);
obj->xrot *= -1;
obj->yrot *= -1;
obj->zrot *= -1;
rotate(lum, obj);
i.d = 0;
if (cos(obj->angle) != 0)
i.d = sin(obj->angle) / cos(obj->angle);
i.a = pow(lum->vx, 2) + pow(lum->vy, 2) - pow(lum->vz, 2) * pow(i.d, 2);
i.b = 2 * (lum->x * lum->vx + lum->y * lum->vy -
(lum->z * (lum->vz) * pow(i.d, 2)));
i.c = pow(lum->x, 2) + pow(lum->y, 2) - pow(lum->z, 2) * pow(i.d, 2);
i.delta = i.b * i.b - 4 * i.a * i.c;
i.k = (i.b - sqrt(i.delta)) / (2 * i.a);
i.k2 = (i.b + sqrt(i.delta)) / (2 * i.a);
translate2(obj, lum);
punrotate(lum);
unrotate(lum);
obj->xrot *= -1;
obj->yrot *= -1;
obj->zrot *= -1;
return (inter_cone_shadow_delta(&i));
}
void inter_plan(t_all *all, t_object *plan)
{
double k;
translate1(plan, &all->eye);
rotate(all, plan);
if (all->eye.vz != 0)
k = -all->eye.z / all->eye.vz;
else
k = -1;
if (k > 0.00001)
{
plan->k = k;
my_cos(all, k, 2, plan);
translate2(plan, &all->eye);
unrotate(all);
calc_lum_vector(all, plan);
}
else
{
printf("inside plan\n");
plan->k = -1;
unrotate(all);
translate2(plan, &all->eye);
}
}
int inter_cone_shadow(t_all *all, t_object *cone)
{
t_inter i;
translate1(cone, &all->lum);
rotatel(all, cone);
if (cos(cone->angle) != 0)
i.d = sin(cone->angle) / cos(cone->angle);
else
i.d = 0;
i.a = pow(all->lum.vx, 2) + pow(all->lum.vy, 2) - pow(all->lum.vz, 2) * pow(i.d, 2);
i.b = 2 * (all->lum.x * all->lum.vx + all->lum.y * all->lum.vy
- (all->lum.z * (all->lum.vz) * pow(i.d, 2)));
i.c = pow(all->lum.x, 2) + pow(all->lum.y, 2) - pow(all->lum.z, 2)
* pow(i.d, 2);
i.delta = i.b * i.b - 4 * i.a * i.c;
i.k = -(-i.b - sqrt(i.delta)) / (2 * i.a);
i.k2 = -(-i.b + sqrt(i.delta)) / (2 * i.a);
translate2(cone, &all->lum);
unrotatel(all);
if (i.delta >= 0)
if ((i.k2 < 1 && i.k2 > 0.00001) || (i.k < 1 && i.k > 0.00001))
return (-1);
return (0);
}
int inter_cyl_shadow(t_object *obj, t_spobject *lum)
{
t_inter i;
protate(lum, obj);
obj->xrot *= -1;
obj->yrot *= -1;
obj->zrot *= -1;
translate1(obj, lum);
rotate(lum, obj);
i.a = pow(lum->vx, 2) + pow(lum->vy, 2);
i.b = 2 * (lum->x * lum->vx + lum->y * lum->vy);
i.c = pow(lum->x, 2) + pow(lum->y, 2) - pow(obj->ray, 2);
i.delta = i.b * i.b - 4 * i.a * i.c;
i.k = (i.b - sqrt(i.delta)) / (2 * i.a);
i.k2 = (i.b + sqrt(i.delta)) / (2 * i.a);
translate2(obj, lum);
punrotate(lum);
unrotate(lum);
obj->xrot *= -1;
obj->yrot *= -1;
obj->zrot *= -1;
if (i.delta >= 0)
if ((i.k2 < 0.9999 && i.k2 > 0.00001) || (i.k < 0.9999 && i.k > 0.00001))
return (-1);
return (0);
}
void my_cos(t_all *all, double k, int obj, t_object *object)
{
translate1(object, &all->lum);
rotatel(all, object);
all->n.px = all->eye.x + (k * all->eye.vx);
all->n.py = all->eye.y + (k * all->eye.vy);
all->n.pz = all->eye.z + (k * all->eye.vz);
my_normal(all, obj);
object->normx = all->n.nx;
object->normy = all->n.nx;
object->normz = all->n.nx;
all->n.cos = (all->n.nx * (all->lum.x - all->n.px))
+ (all->n.ny * (all->lum.y - all->n.py))
+ (all->n.nz * (all->lum.z - all->n.pz));
/* all->n.cos = all->n.nx * all->lum.x2 + all->n.ny * all->lum.y2 */
/* + all->n.nz * all->lum.z2; */
all->n.a2 = /* sqrt( */(all->lum.x - all->n.px) * (all->lum.x - all->n.px)
+ (all->lum.y - all->n.py) * (all->lum.y - all->n.py)
+ (all->lum.z - all->n.pz) * (all->lum.z - all->n.pz);//);
// object->z2 = sqrt(all->n.a2);
if (all->n.cos < 0)
all->n.cos = 0;
else
{
all->n.a1 = /* sqrt( */all->n.nx * all->n.nx + all->n.ny * all->n.ny
+ all->n.nz * all->n.nz;//);
all->n.cos = all->n.cos / sqrt(all->n.a1 * all->n.a2);
}
if (object->bright == 0)
{
object->color_tmp[0] = all->n.cos * object->color[0];
object->color_tmp[1] = all->n.cos * object->color[1];
object->color_tmp[2] = all->n.cos * object->color[2];
}
else if (object->bright > 0)
{
object->color_tmp[0] = all->n.cos * (object->color[0] *
(1 - object->bright) +
all->lum.color[0] * object->bright);
object->color_tmp[1] = all->n.cos * (object->color[1] *
(1 - object->bright) +
all->lum.color[1] * object->bright);
object->color_tmp[2] = all->n.cos * (object->color[2] *
(1 - object->bright) +
all->lum.color[2] * object->bright);
}
/* if (object->color[0] > 255) */
/* object->color_tmp[0] = 255; */
/* if (object->color_tmp[1] > 255) */
/* object->color_tmp[1] = 255; */
/* if (object->color_tmp[2] > 255) */
/* object->color_tmp[2] = 255; */
unrotatel(all);
translate2(object, &all->lum);
}
void inter_sphere(t_all *all, t_object *sphere)
{
t_inter i;
/* printf("************************************************************************************************************************************************************************************************\n"); */
/* printf("x %G\n", sphere->x); */
/* printf("y %G\n", sphere->y); */
/* printf("z %G\n", sphere->z); */
/* printf("eyex %G\n", all->eye.x); */
/* printf("eyey %G\n", all->eye.y); */
/* printf("eyez %G\n", all->eye.z); */
/* printf("eyevx %G\n", all->eye.vx); */
/* printf("eyevy %G\n", all->eye.vy); */
/* printf("eyevz %G\n", all->eye.vz); */
/* printf("ray %G\n", sphere->ray); */
/* printf("xrot %G\n", sphere->xrot); */
/* printf("yrot %G\n", sphere->yrot); */
/* printf("zrot %G\n", sphere->zrot); */
/* printf("type %d\n", sphere->type); */
/* printf("bright %G\n", sphere->bright); */
/* printf("color R %d\n", sphere->color[0]); */
/* printf("color G %d\n", sphere->color[1]); */
/* printf("color B %d\n", sphere->color[2]); */
translate1(sphere, &all->eye);
i.a = pow(all->eye.vx, 2) + pow(all->eye.vy, 2) + pow(all->eye.vz, 2);
i.b = 2 * (all->eye.x * all->eye.vx + all->eye.y
* all->eye.vy + all->eye.z * all->eye.vz);
i.c = all->eye.x * all->eye.x + all->eye.y *
all->eye.y + all->eye.z * all->eye.z - sphere->ray * sphere->ray;
i.delta = i.b * i.b - 4 * i.a * i.c;
i.k = (-i.b - sqrt(i.delta)) / (2 * i.a);
i.k2 = (-i.b + sqrt(i.delta)) / (2 * i.a);
if (i.k < i.k2 && i.k > 0.00001)
{
sphere->k = i.k;
my_cos(all, i.k, 1, sphere);
translate2(sphere, &all->eye);
calc_lum_vector(all, sphere);
}
else if (i.k2 < i.k && i.k2 > 0.00001)
{
sphere->k = i.k2;
my_cos(all, i.k2, 1, sphere);
translate2(sphere, &all->eye);
calc_lum_vector(all, sphere);
}
else
translate2(sphere, &all->eye);
if (i.delta <= 0)
{
printf("inside sphere\n");
sphere->k = -1;
}
}
int inter_plan_shadow(t_all *all, t_object *plan)
{
double k;
translate1(plan, &all->lum);
rotatel(all, plan);
k = all->lum.z / all->lum.vz;
translate2(plan, &all->lum);
unrotatel(all);
if (k < 1 && k > 0.00001)
return (-1);
return (0);
}
void inter_cone(t_all *all, t_object *cone)
{
t_inter i;
translate1(cone, &all->eye);
rotate(all, cone);
if (cos(cone->angle) != 0)
i.d = sin(cone->angle) / cos(cone->angle);
else
i.d = 0;
i.a = pow(all->eye.vx, 2) + pow(all->eye.vy, 2) - pow(all->eye.vz, 2) * pow(i.d, 2);
i.b = 2 * (all->eye.x * all->eye.vx + all->eye.y * all->eye.vy
- (all->eye.z * (all->eye.vz) * pow(i.d, 2)));
i.c = pow(all->eye.x, 2) + pow(all->eye.y, 2) - pow(all->eye.z, 2)
* pow(i.d, 2);
i.delta = i.b * i.b - 4 * i.a * i.c;
i.k = (-i.b - sqrt(i.delta)) / (2 * i.a);
i.k2 = (-i.b + sqrt(i.delta)) / (2 * i.a);
inter_cone2(all, cone, &i);
}
int inter_cyl_shadow(t_all *all, t_object *cyl)
{
t_inter i;
translate1(cyl, &all->lum);
rotatel(all, cyl);
i.a = pow(all->lum.vx, 2) + pow(all->lum.vy, 2);
i.b = 2 * (all->lum.x * all->lum.vx + all->lum.y * all->lum.vy);
i.c = pow(all->lum.x, 2) + pow(all->lum.y, 2) - pow(cyl->ray, 2);
i.delta = i.b * i.b - 4 * i.a * i.c;
i.k = -(-i.b - sqrt(i.delta)) / (2 * i.a);
i.k2 = -(-i.b + sqrt(i.delta)) / (2 * i.a);
unrotatel(all);
translate2(cyl, &all->lum);
if (i.delta >= 0)
{
if ((i.k2 < 1 && i.k2 > 0.00001) || (i.k < 1 && i.k > 0.00001))
return (-1);
}
return (0);
}
int inter_sphere_shadow(t_all *all, t_object *sphere)
{
t_inter i;
translate1(sphere, &all->lum);
i.a = pow(all->lum.vx, 2) + pow(all->lum.vy, 2) + pow(all->lum.vz, 2);
i.b = 2 * (all->lum.x * all->lum.vx + all->lum.y
* all->lum.vy + all->lum.z * all->lum.vz);
i.c = all->lum.x * all->lum.x + all->lum.y *
all->lum.y + all->lum.z * all->lum.z - sphere->ray * sphere->ray;
i.delta = i.b * i.b - 4 * i.a * i.c;
translate2(sphere, &all->lum);
if (i.delta >= 0)
{
i.k = -(-i.b - sqrt(i.delta)) / (2 * i.a);
i.k2 = -(-i.b + sqrt(i.delta)) / (2 * i.a);
if ((i.k2 < 1 && i.k2 > 0.00001) || (i.k < 1 && i.k > 0.00001))
return (-1);
}
return (0);
}
//Scale triangle, used for improve do_intersect results: scale the triangle on its plane, centred in its barycenter
inline Triangle triangleScale(Triangle t)
{
Plane p = t.supporting_plane();
KPoint2 a = p.to_2d(t.vertex(0));
KPoint2 b = p.to_2d(t.vertex(1));
KPoint2 c = p.to_2d(t.vertex(2));
KPoint2 baryc((a.x() + b.x() +c.x())/3.0, (a.y() + b.y() +c.y())/3.0);
//TODO: usare margine invece di scale
CGAL::Aff_transformation_2<Kernel> translate1(CGAL::TRANSLATION, CGAL::Vector_2<Kernel>(-baryc.x(), -baryc.y()));
CGAL::Aff_transformation_2<Kernel> translate2(CGAL::TRANSLATION, CGAL::Vector_2<Kernel>(baryc.x(), baryc.y()));
CGAL::Aff_transformation_2<Kernel> scale(CGAL::SCALING, DISJOINTMESH_TRIANGLE_SCALE_VALUE);
CGAL::Aff_transformation_2<Kernel> transform = translate2 * (scale * translate1);
KPoint2 an = transform(a);
KPoint2 bn = transform(b);
KPoint2 cn = transform(c);
Point an3 = p.to_3d(an);
Point bn3 = p.to_3d(bn);
Point cn3 = p.to_3d(cn);
Triangle tn(an3, bn3, cn3);
return tn;
}
int inter_plan_shadow(t_object *obj, t_spobject *lum)
{
double k;
protate(lum, obj);
translate1(obj, lum);
obj->xrot *= -1;
obj->yrot *= -1;
obj->zrot *= -1;
rotate(lum, obj);
obj->xrot *= -1;
obj->yrot *= -1;
obj->zrot *= -1;
k = lum->z / lum->vz;
translate2(obj, lum);
punrotate(lum);
unrotate(lum);
if (k < 0.9999 && k > 0.00001)
return (-1);
return (0);
}
void inter_cyl(t_all *all, t_object *cyl)
{
t_inter i;
translate1(cyl, &all->eye);
rotate(all, cyl);
i.a = pow(all->eye.vx, 2) + pow(all->eye.vy, 2);
i.b = 2 * (all->eye.x * all->eye.vx + all->eye.y * all->eye.vy);
i.c = pow(all->eye.x, 2) + pow(all->eye.y, 2) - pow(cyl->ray, 2);
i.delta = i.b * i.b - 4 * i.a * i.c;
i.k = (-i.b - sqrt(i.delta)) / (2 * i.a);
i.k2 = (-i.b + sqrt(i.delta)) / (2 * i.a);
if (i.k < i.k2 && i.k > 0.00001)
{
cyl->k = i.k;
my_cos(all, i.k, 3, cyl);
unrotate(all);
translate2(cyl, &all->eye);
calc_lum_vector(all, cyl);
}
else if (i.k2 < i.k && i.k2 > 0.00001)
{
cyl->k = i.k2;
my_cos(all, i.k2, 3, cyl);
unrotate(all);
translate2(cyl, &all->eye);
calc_lum_vector(all, cyl);
}
else
{
unrotate(all);
translate2(cyl, &all->eye);
}
if (i.delta <= 0)
cyl->k = -1;
}
void GLImageDrawable::updateShadow()
{
if(!m_shadowDrawable)
return;
QImage sourceImg = m_imageWithBorder.isNull() ? m_image : m_imageWithBorder;
QSizeF originalSizeWithBorder = sourceImg.size();
QPointF scale = m_glw ? QPointF(m_glw->transform().m11(), m_glw->transform().m22()) : QPointF(1.,1.);
if(scale.x() < 1.25 && scale.y() < 1.25)
scale = QPointF(1,1);
double radius = m_shadowBlurRadius;
// create temporary pixmap to hold a copy of the text
double radiusSpacing = radius;// / 1.75;// * 1.5;
double radius2 = radius * 2;
// double offx = 0; //fabs(m_shadowOffset.x());
// double offy = 0; //fabs(m_shadowOffset.y());
double newWidth = originalSizeWithBorder.width()
+ radius2 * scale.x();// blur on both sides
//+ offx * scale.x();
double newHeight = originalSizeWithBorder.height()
+ radius2 * scale.y();// blur on both sides
//+ offy * scale.y();
QSizeF blurSize(newWidth,newHeight);
// blurSize.rwidth() *= scale.x();
// blurSize.rheight() *= scale.y();
//qDebug() << "GLImageDrawable::applyBorderAndShadow(): Blur size:"<<blurSize<<", originalSizeWithBorder:"<<originalSizeWithBorder<<", radius:"<<radius<<", radius2:"<<radius2<<", m_shadowOffset:"<<m_shadowOffset<<", offx:"<<offx<<", offy:"<<offy<<", scale:"<<scale;
QImage tmpImage(blurSize.toSize(),QImage::Format_ARGB32_Premultiplied);
memset(tmpImage.scanLine(0),0,tmpImage.byteCount());
// render the source image into a temporary buffer for bluring
QPainter tmpPainter(&tmpImage);
//tmpPainter.scale(scale.x(),scale.y());
tmpPainter.save();
QPointF translate1(radiusSpacing,
radiusSpacing);
translate1.rx() *= scale.x();
translate1.ry() *= scale.y();
//qDebug() << "stage1: radiusSpacing:"<<radiusSpacing<<", m_shadowOffset:"<<m_shadowOffset<<", translate1:"<<translate1;
//qDebug() << "GLImageDrawable::updateShadow(): translate1:"<<translate1<<", scale:"<<scale;
tmpPainter.translate(translate1);
tmpPainter.drawImage(0,0,sourceImg);
tmpPainter.restore();
// color the orignal image by applying a color to the copy using a QPainter::CompositionMode_DestinationIn operation.
// This produces a homogeneously-colored pixmap.
QRect imgRect = tmpImage.rect();
tmpPainter.setCompositionMode(QPainter::CompositionMode_SourceIn);
QColor color = m_shadowColor;
// clamp m_shadowOpacity to 1.0 because we handle values >1.0 by repainting the blurred image over itself (m_shadowOpacity-1) times.
color.setAlpha((int)(255.0 * (m_shadowOpacity > 1.0 ? 1.0 : m_shadowOpacity)));
tmpPainter.fillRect(imgRect, color);
tmpPainter.end();
// blur the colored text
ImageFilters::blurImage(tmpImage, (int)(radius * scale.x()));
if(m_shadowOpacity > 1.0)
{
QPainter painter2(&tmpImage);
int times = (int)(m_shadowOpacity - 1.0);
// Cap at 10 - an arbitrary cap just to prevent the user from taxing the CPU too much.
if(times > 10)
times = 10;
double finalOpacity = m_shadowOpacity - ((int)m_shadowOpacity);
if(finalOpacity < 0.001)
finalOpacity = 1.0;
QImage copy = tmpImage.copy();
for(int i=0; i<times-1; i++)
painter2.drawImage(0,0,copy);
//qDebug() << "Overpaint feature: times:"<<times<<", finalOpacity:"<<finalOpacity;
painter2.setOpacity(finalOpacity);
painter2.drawImage(0,0,copy);
painter2.setOpacity(1.0);
}
// {
// QPainter painter2(&tmpImage);
// painter2.setPen(Qt::yellow);
//
// QPointF translate1(radiusSpacing,
// radiusSpacing);
// translate1.rx() *= scale.x();
// translate1.ry() *= scale.y();
// //qDebug() << "stage1: radiusSpacing:"<<radiusSpacing<<", m_shadowOffset:"<<m_shadowOffset<<", translate1:"<<translate1;
// //qDebug() << "GLImageDrawable::updateShadow(): translate1:"<<translate1<<", scale:"<<scale;
//
// painter2.translate(translate1);
// painter2.drawImage(0,0,sourceImg);
// painter2.drawRect(sourceImg.rect());
//
// }
// Notice: Older versions of this shadow code drew the sourceImg back on top of the shadow -
// Since we are drawaing the drop shadow as a separate texture below the real image in the
// m_shadowDrawable, we are not going to draw the sourceImg on top now.
//qDebug() << "GLImageDrawable::updateShadow(): shadow location:"<<point<<", size:"<<tmpImage.size()<<", rect().topLeft():"<<rect().topLeft()<<", m_shadowOffset:"<<m_shadowOffset<<", radiusSpacing:"<<radiusSpacing;
bool scaleFlag = dynamic_cast<GLTextDrawable*>(this) == NULL;
// double scale_w = scaleFlag ? fabs((double)(rect().width() - sourceImg.width())) / sourceImg.width() : 1.0;
// double scale_h = scaleFlag ? fabs((double)(rect().height() - sourceImg.height())) / sourceImg.height() : 1.0;
double scale_w = scaleFlag ? m_targetRect.width() / m_sourceRect.width() : 1.0;
double scale_h = scaleFlag ? m_targetRect.height() / m_sourceRect.height() : 1.0;
// scale_w *= 2;
// scale_h *= 2;
QSizeF size(((double)tmpImage.width()) * scale_w, ((double)tmpImage.height()) * scale_h);
QPointF point = rect().topLeft() + QPointF(m_shadowOffset.x() * scale_w, m_shadowOffset.y() * scale_h) - QPointF(m_shadowBlurRadius * scale_w,m_shadowBlurRadius * scale_h);
//qDebug() << "GLImageDrawable::updateShadow: "<<(QObject*)this<<" m_targetRect:"<<m_targetRect.size()<<", m_sourceRect:"<<m_sourceRect.size()<<", scale:"<<scale_w<<"x"<<scale_h<<", tmpImage:"<<tmpImage.size()<<", new size:"<<size<<", point:"<<point;
m_shadowDrawable->setRect(QRectF(point, size));
m_shadowDrawable->setImage(tmpImage);
//updateGL();
}
