public void scale(float d)
{
matrix.scale(d);
}
public float EstimateBoxProjectedArea(warp_Vector pos, warp_Vector size, warp_Matrix rotation)
{
warp_Matrix om = new warp_Matrix();
om.scale(size.x, size.y, size.z);
om.transform(rotation);
float xmax;
float ymax;
/*
* if (defaultCamera.isOrthographic)
* {
* xmax = Math.Abs(om.m00);
* ymax = Math.Abs(om.m22);
* if (xmax < 1f || ymax < 1f)
* return -1;
* return xmax * ymax / (width * height);
* }
*/
om.m03 = pos.x;
om.m13 = pos.y;
om.m23 = pos.z;
warp_Vector side;
warp_Vector v;
float xmin;
float ymin;
warp_Matrix m = warp_Matrix.multiply(defaultCamera.getMatrix(), matrix);
om.transform(m);
float zmin;
side = new warp_Vector(-1f, -1f, -1f);
v = side.transform(om);
xmin = v.x;
xmax = xmin;
ymin = v.y;
ymax = ymin;
zmin = v.z;
side.x = 1f;
v = side.transform(om);
if (xmin > v.x)
{
xmin = v.x;
}
else if (xmax < v.x)
{
xmax = v.x;
}
if (ymin > v.y)
{
ymin = v.y;
}
else if (ymax < v.y)
{
ymax = v.y;
}
if (zmin > v.z)
{
zmin = v.z;
}
side.x = -1f;
side.y = 1f;
v = side.transform(om);
if (xmin > v.x)
{
xmin = v.x;
}
else if (xmax < v.x)
{
xmax = v.x;
}
if (ymin > v.y)
{
ymin = v.y;
}
else if (ymax < v.y)
{
ymax = v.y;
}
if (zmin > v.z)
{
zmin = v.z;
}
side.x = 1f;
v = side.transform(om);
if (xmin > v.x)
{
xmin = v.x;
}
else if (xmax < v.x)
{
xmax = v.x;
}
if (ymin > v.y)
{
ymin = v.y;
}
else if (ymax < v.y)
{
ymax = v.y;
}
if (zmin > v.z)
{
zmin = v.z;
}
side.x = -1f;
side.y = -1f;
side.z = 1f;
v = side.transform(om);
if (xmin > v.x)
{
xmin = v.x;
}
else if (xmax < v.x)
{
xmax = v.x;
}
if (ymin > v.y)
{
ymin = v.y;
}
else if (ymax < v.y)
{
ymax = v.y;
}
if (zmin > v.z)
{
zmin = v.z;
}
side.x = 1f;
v = side.transform(om);
if (xmin > v.x)
{
xmin = v.x;
}
else if (xmax < v.x)
{
xmax = v.x;
}
if (ymin > v.y)
{
ymin = v.y;
}
else if (ymax < v.y)
{
ymax = v.y;
}
if (zmin > v.z)
{
zmin = v.z;
}
side.x = -1f;
side.y = 1f;
v = side.transform(om);
if (xmin > v.x)
{
xmin = v.x;
}
else if (xmax < v.x)
{
xmax = v.x;
}
if (ymin > v.y)
{
ymin = v.y;
}
else if (ymax < v.y)
{
ymax = v.y;
}
if (zmin > v.z)
{
zmin = v.z;
}
side.x = 1f;
v = side.transform(om);
if (xmin > v.x)
{
xmin = v.x;
}
else if (xmax < v.x)
{
xmax = v.x;
}
if (ymin > v.y)
{
ymin = v.y;
}
else if (ymax < v.y)
{
ymax = v.y;
}
if (zmin > v.z)
{
zmin = v.z;
}
xmax -= xmin;
ymax -= ymin;
if (xmax < 1f || ymax < 1f)
{
return(-1);
}
return(xmax * ymax / (width * height));
}