bool PassGBuffer_Fluid::culling( PSET_RID psid, const PSetInstance &inst )
{
const ParticleSet *rc = atmGetParticleSet(psid);
vec4 posf = inst.transform[3];
posf.w = 0.0f;
simdvec4 pos = simdvec4(posf);
AABB aabb = rc->getAABB();
aabb[0] = (simdvec4(aabb[0])+pos).Data;
aabb[1] = (simdvec4(aabb[1])+pos).Data;
if(!ist::TestFrustumAABB(*atmGetViewFrustum(), aabb)) {
return false;
}
return true;
}
__forceinline simdvec3 _project(const simdmat4& matrix, const simdvec3& point)
{
simdvec4 vec_hs = matrix * simdvec4(point.x, point.y, point.z, simdfloat(1.0f));
return simdvec3(vec_hs.x, vec_hs.y, vec_hs.z) / simdvec3(vec_hs.w);
}
