public static warp_Matrix rotateMatrix(float dx, float dy, float dz)
{
warp_Matrix res = new warp_Matrix();
float SIN;
float COS;
if (dx != 0)
{
warp_Matrix m = new warp_Matrix();
SIN = warp_Math.sin(dx);
COS = warp_Math.cos(dx);
m.m11 = COS;
m.m12 = SIN;
m.m21 = -SIN;
m.m22 = COS;
res.transform(m);
}
if (dy != 0)
{
warp_Matrix m = new warp_Matrix();
SIN = warp_Math.sin(dy);
COS = warp_Math.cos(dy);
m.m00 = COS;
m.m02 = SIN;
m.m20 = -SIN;
m.m22 = COS;
res.transform(m);
}
if (dz != 0)
{
warp_Matrix m = new warp_Matrix();
SIN = warp_Math.sin(dz);
COS = warp_Math.cos(dz);
m.m00 = COS;
m.m01 = SIN;
m.m10 = -SIN;
m.m11 = COS;
res.transform(m);
}
return(res);
}
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));
}
public void transform(warp_Matrix m)
{
matrix.transform(m);
normalmatrix.transform(m);
}
public void project(warp_Matrix m)
{
matrix2 = m.getClone();
matrix2.transform(m);
v2 = v.transform(matrix2);
}
