bool CPicoSurface::TestRay (const ray_t *ray, vec_t *dist) const
{
int i;
vec_t start_dist = *dist;
vec_t local_dist = *dist;
if (aabb_intersect_ray(&m_BBox, ray, &local_dist))
{
switch( PicoGetSurfaceType(m_pSurface) )
{
case PICO_TRIANGLES:
for (i=0; i<PicoGetSurfaceNumIndexes(m_pSurface); i+=3)
{
local_dist = ray_intersect_triangle(ray, true, PicoGetSurfaceXYZ(m_pSurface,PicoGetSurfaceIndex(m_pSurface,i+2)),
PicoGetSurfaceXYZ(m_pSurface,PicoGetSurfaceIndex(m_pSurface,i+1)),
PicoGetSurfaceXYZ(m_pSurface,PicoGetSurfaceIndex(m_pSurface,i)));
if (local_dist < *dist)
*dist = local_dist;
}
break;
default:
Sys_Printf( "ERROR: Unsupported Pico Surface Type: %i", PicoGetSurfaceType(m_pSurface) );
break;
}
}
return (*dist < start_dist);
}
bool CEntityEclassModel::TestRay(const ray_t *ray, vec_t *dist) const
{
vec_t dist_start = *dist;
vec_t dist_local = *dist;
ray_t ray_local = *ray;
if (aabb_intersect_ray(&m_BBox, &ray_local, &dist_local))
*dist = dist_local;
return *dist < dist_start;
}
bool CPicoModel::TestRay( const ray_t *ray, vec_t *dist ) const {
vec_t dist_start = *dist;
vec_t dist_local = *dist;
ray_t ray_local = *ray;
if ( !m_pModel ) {
return false;
}
if ( !aabb_intersect_ray( &m_BBox, &ray_local, &dist_local ) ) {
return false;
}
dist_local = dist_start;
for ( unsigned int i = 0; i < m_children->len; i++ )
{
if ( ( (CPicoSurface*)m_children->pdata[i] )->TestRay( &ray_local, &dist_local ) ) {
*dist = dist_local;
}
}
return *dist < dist_start;
}
