mirror of
https://github.com/OpenMW/openmw.git
synced 2025-10-30 17:56:39 +00:00
45 lines
1.3 KiB
C++
45 lines
1.3 KiB
C++
#include "util.hpp"
|
|
|
|
namespace SceneUtil
|
|
{
|
|
|
|
void transformBoundingSphere (const osg::Matrixf& matrix, osg::BoundingSphere& bsphere)
|
|
{
|
|
osg::BoundingSphere::vec_type xdash = bsphere._center;
|
|
xdash.x() += bsphere._radius;
|
|
xdash = xdash*matrix;
|
|
|
|
osg::BoundingSphere::vec_type ydash = bsphere._center;
|
|
ydash.y() += bsphere._radius;
|
|
ydash = ydash*matrix;
|
|
|
|
osg::BoundingSphere::vec_type zdash = bsphere._center;
|
|
zdash.z() += bsphere._radius;
|
|
zdash = zdash*matrix;
|
|
|
|
bsphere._center = bsphere._center*matrix;
|
|
|
|
xdash -= bsphere._center;
|
|
osg::BoundingSphere::value_type sqrlen_xdash = xdash.length2();
|
|
|
|
ydash -= bsphere._center;
|
|
osg::BoundingSphere::value_type sqrlen_ydash = ydash.length2();
|
|
|
|
zdash -= bsphere._center;
|
|
osg::BoundingSphere::value_type sqrlen_zdash = zdash.length2();
|
|
|
|
bsphere._radius = sqrlen_xdash;
|
|
if (bsphere._radius<sqrlen_ydash) bsphere._radius = sqrlen_ydash;
|
|
if (bsphere._radius<sqrlen_zdash) bsphere._radius = sqrlen_zdash;
|
|
bsphere._radius = sqrtf(bsphere._radius);
|
|
}
|
|
|
|
osg::Vec4f colourFromRGB(unsigned int clr)
|
|
{
|
|
osg::Vec4f colour(((clr >> 0) & 0xFF) / 255.0f,
|
|
((clr >> 8) & 0xFF) / 255.0f,
|
|
((clr >> 16) & 0xFF) / 255.0f, 1.f);
|
|
return colour;
|
|
}
|
|
|
|
}
|