def intersects(self,ray,closest=True):
'''
Call intersect but return ray as well
and do hierarchical intersections
'''
from PyRatBox import PyRatBox
import numpy as np
# transform ray
transformed_ray = ray.copy()
try:
transformed_ray.sourceOfRay = ray.sourceOfRay
except:
pass
try:
transformed_ray.origin -= self.offset
except:
pass
try:
transformed_ray.direction = np.array(np.matrix(ray.direction) * self.matrix.T).flatten()
mod_ray_direction=sqrt(dot(transformed_ray.direction,transformed_ray.direction))
transformed_ray.direction /= mod_ray_direction
transformed_ray.origin = np.array(np.matrix(transformed_ray.origin) * self.matrix.T).flatten()
# to account for scaling effects
transformed_ray.origin /= (mod_ray_direction*mod_ray_direction)
transformed_ray.length /= mod_ray_direction
transformed_ray.tnear /= mod_ray_direction
transformed_ray.tfar /= mod_ray_direction
transformed_ray.big /= mod_ray_direction
except:
pass
# with a clone, we are not interested in the intersection other
# than the transformation we apply
# contents[0] will always be the contents of a clone as it
# points to a group which must be a bounding box
#import pdb;pdb.set_trace()
hit,thisRay = PyRatBox.intersects(self.contents[0],transformed_ray,closest=closest)
if hit:
try:
#import pdb;pdb.set_trace()
thisRay.localNormal = np.array(np.matrix(thisRay.localNormal) * self.matrix).flatten()
mod = sqrt(dot(thisRay.localNormal,thisRay.localNormal))
thisRay.localNormal /= mod
except:
pass
try:
thisRay.length *= self.scale
thisRay.tnear *= self.scale
thisRay.tfar *= self.scale
thisRay.big *= self.scale
except:
pass
try:
#import pdb;pdb.set_trace()
#thisRay.length *= mod_ray_direction
thisRay.origin = ray.origin
thisRay.direction = ray.direction
except:
pass
ray.ccopy(thisRay)
return hit,ray
def intersects(self, ray, closest=True):
'''
Call intersect but return ray as well
and do hierarchical intersections
'''
from PyRatBox import PyRatBox
import numpy as np
# transform ray
transformed_ray = ray.copy()
try:
transformed_ray.sourceOfRay = ray.sourceOfRay
except:
pass
try:
transformed_ray.origin -= self.offset
except:
pass
try:
transformed_ray.direction = np.array(
np.matrix(ray.direction) * self.matrix.T).flatten()
mod_ray_direction = sqrt(
dot(transformed_ray.direction, transformed_ray.direction))
transformed_ray.direction /= mod_ray_direction
transformed_ray.origin = np.array(
np.matrix(transformed_ray.origin) * self.matrix.T).flatten()
# to account for scaling effects
transformed_ray.origin /= (mod_ray_direction * mod_ray_direction)
transformed_ray.length /= mod_ray_direction
transformed_ray.tnear /= mod_ray_direction
transformed_ray.tfar /= mod_ray_direction
transformed_ray.big /= mod_ray_direction
except:
pass
# with a clone, we are not interested in the intersection other
# than the transformation we apply
# contents[0] will always be the contents of a clone as it
# points to a group which must be a bounding box
#import pdb;pdb.set_trace()
hit, thisRay = PyRatBox.intersects(self.contents[0],
transformed_ray,
closest=closest)
if hit:
try:
#import pdb;pdb.set_trace()
thisRay.localNormal = np.array(
np.matrix(thisRay.localNormal) * self.matrix).flatten()
mod = sqrt(dot(thisRay.localNormal, thisRay.localNormal))
thisRay.localNormal /= mod
except:
pass
try:
thisRay.length *= self.scale
thisRay.tnear *= self.scale
thisRay.tfar *= self.scale
thisRay.big *= self.scale
except:
pass
try:
#import pdb;pdb.set_trace()
#thisRay.length *= mod_ray_direction
thisRay.origin = ray.origin
thisRay.direction = ray.direction
except:
pass
ray.ccopy(thisRay)
return hit, ray
