float CEnvModifier::sum (CEnvModifier& M, Fvector3& view)
{
float _dist_sq = view.distance_to_sqr(M.position);
if (_dist_sq>=(M.radius*M.radius)) return 0;
float _att = 1-_sqrt(_dist_sq)/M.radius; //[0..1];
float _power = M.power*_att;
far_plane += M.far_plane*_power;
fog_color.mad (M.fog_color,_power);
fog_density += M.fog_density*_power;
ambient.mad (M.ambient,_power);
// lmap_color.mad (M.lmap_color,_power);
sky_color.mad (M.sky_color,_power);
hemi_color.mad (M.hemi_color,_power);
return _power;
}
float CEnvModifier::sum(CEnvModifier& M, Fvector3& view)
{
float _dist_sq = view.distance_to_sqr(M.position);
if (_dist_sq >= (M.radius*M.radius))
return 0;
float _att = 1 - _sqrt(_dist_sq) / M.radius; //[0..1];
float _power = M.power*_att;
if (M.use_flags.test(eViewDist))
{
far_plane += M.far_plane*_power;
use_flags.set(eViewDist, TRUE);
}
if (M.use_flags.test(eFogColor))
{
fog_color.mad(M.fog_color, _power);
use_flags.set(eFogColor, TRUE);
}
if (M.use_flags.test(eFogDensity))
{
fog_density += M.fog_density*_power;
use_flags.set(eFogDensity, TRUE);
}
if (M.use_flags.test(eAmbientColor))
{
ambient.mad(M.ambient, _power);
use_flags.set(eAmbientColor, TRUE);
}
if (M.use_flags.test(eSkyColor))
{
sky_color.mad(M.sky_color, _power);
use_flags.set(eSkyColor, TRUE);
}
if (M.use_flags.test(eHemiColor))
{
hemi_color.mad(M.hemi_color, _power);
use_flags.set(eHemiColor, TRUE);
}
return _power;
}