bool Brush::operator==(const Brush& brush) const
{
return radius1() == brush.radius1() && radius2() == brush.radius2() &&
qAbs(hardness1() - brush.hardness1()) <= 1.0/256.0 &&
qAbs(hardness2() - brush.hardness2()) <= 1.0/256.0 &&
qAbs(opacity1() - brush.opacity1()) <= 1.0/256.0 &&
qAbs(opacity2() - brush.opacity2()) <= 1.0/256.0 &&
color1() == brush.color1() &&
color2() == brush.color2() &&
spacing() == brush.spacing() &&
subpixel() == brush.subpixel() &&
incremental() == brush.incremental() &&
blendingMode() == brush.blendingMode();
}
const ray& perspective_camera::generate_ray(ray& out, const unsigned int x, const unsigned int y, const unsigned int sx, const unsigned int sy)
{
// maximum x is (get_display_width - 1)
// maximum y is (get_display_height - 1)
assert(x < get_display_width());
assert(y < get_display_height());
out.m_origin = get_eye();
// calculate pixel coordinates by offsetting origin pixel
point3 subpixel(m_origin_pixel.x + (m_pixel_pitch * x), m_origin_pixel.y - (m_pixel_pitch * y), -1.0); // z = -1 because we are using the RH coordinate system
subpixel.x = subpixel.x + ((m_subpixel_pitch * sx) + (m_subpixel_pitch * 0.5));
subpixel.y = subpixel.y + ((m_subpixel_pitch * sy) + (m_subpixel_pitch * 0.5));
out.m_direction = subpixel - out.m_origin;
normalize(out.m_direction, out.m_direction);
return out;
}
void main()
{
short val;
int menu, pres;
float p, mx, my;
curmass = 0.5;
curdrag = 0.15;
prefsize(800,640);
initbuzz();
winopen("dynadraw");
glcompat(GLC_OLDPOLYGON,1);
subpixel(1);
shademodel(FLAT);
gconfig();
qdevice(LEFTMOUSE);
qdevice(MIDDLEMOUSE);
qdevice(MENUBUTTON);
qdevice(RIGHTSHIFTKEY);
qdevice(UPARROWKEY);
qdevice(DOWNARROWKEY);
qdevice(RIGHTSHIFTKEY);
makeframe();
menu = defpup("dynadraw %t|toggle line style|save PostScript");
width = initwidth;
mouse.fixedangle = 1;
while(1) {
switch(qread(&val)) {
case REDRAW:
makeframe();
break;
case MIDDLEMOUSE:
if(val)
clearscreen();
break;
case UPARROWKEY:
if(val)
initwidth *= 1.414213;
width = initwidth;
break;
case DOWNARROWKEY:
if(val)
initwidth /= 1.414213;
width = initwidth;
break;
case MENUBUTTON:
if(val) {
switch(dopup(menu)) {
case 1:
mouse.fixedangle = 1-mouse.fixedangle;
break;
case 2:
savepolys();
break;
}
}
break;
case LEFTMOUSE:
if(val) {
my = getmousey();
if(my>0*SLIDERHIGH && my<2*SLIDERHIGH) {
if(my>SLIDERHIGH) {
while(getbutton(LEFTMOUSE)) {
p = paramval();
if(p != curmass) {
curmass = p;
showsettings();
}
}
} else {
while(getbutton(LEFTMOUSE)) {
p = paramval();
if(p != curdrag) {
curdrag = p;
showsettings();
}
}
}
} else {
mx = 1.25*fgetmousex();
my = fgetmousey();
filtersetpos(&mouse,mx,my);
odelx = 0.0;
odely = 0.0;
while(getbutton(LEFTMOUSE)) {
mx = 1.25*fgetmousex();
my = fgetmousey();
if(filterapply(&mouse,mx,my)) {
drawsegment(&mouse);
color(0);
buzz();
}
}
}
}
break;
}
}
}