def checkInter(self, objlist):
min_length = 1.0e8
min_object = face(vector3(0.0,0.0,0.0), vector3(0.0,0.0,0.0), 0)
for element in objlist:
dest = self.intersection(element)
if vector3.norm(dest) < min_length :
min_length = vector3.norm(dest)
min_object = element
i_point = vector3.add_vec(self.point, vector3.mul_vec(self.direction, min_length))
return i_point, min_object
h = 240
PI = 3.14159265
view_angle = 60 * PI / 180.0
view_ratio = tan(view_angle/2) / (w/2.0)
img_size = (w,h)
im = Image.new("RGB", img_size, 'rgb(128,128,128)')
draw = ImageDraw.Draw(im)
## objects in virtual space ##
''' set light '''
light = ray(vector3(1.0,-1.8,5.0), vector3(0.0,1.0,0.0))
''' set eye position'''
eye = vector3(0.0,0.0,-1.0)
''' primitive objects '''
obj_list = []
obj_list.append(face(vector3(0.0,-2.0,0.0), vector3(0.0,1.0,0.0), 255))
obj_list.append(face(vector3(0.0, 2.0,0.0), vector3(0.0,-1.0,0.0), 255<<8))
obj_list.append(face(vector3(-2.0,0.0,0.0), vector3(1.0,0.0,0.0), 255<<16))
obj_list.append(face(vector3( 2.0,0.0,0.0), vector3(-1.0,0.0,0.0), 255 + (255<<8)))
obj_list.append(face(vector3(0.0,0.0,10.0), vector3(0.0,0.0,-1.0), 255 + (255<<8) + (255<<16)))
obj_list.append(sphere(vector3(0.0,0.7,5.0), 1.5, 255 + (255<<16)))
v_percentage = 1
## each line ##
for y in range(0,h):
if v_percentage <= y*100 // h :
print str(v_percentage) + " %"
v_percentage = y*100//h + 1
## each pixel ##
for x in range(0,w):
screen = vector3((x-w/2)*view_ratio, (y-h/2)*view_ratio, 0.0)
