def parse(request_dic):
id = request_dic['id']
entities = request_dic['entities']
objs = []
camera = None
light = None
for ent in entities:
if ent['type'] == 'sphere':
objs.append(parseSphere(ent))
elif ent['type'] == 'triangle':
objs.append(parseTriangle(ent))
elif ent['type'] == 'rectangle':
objs += parseRect(ent)
elif ent['type'] == 'light':
light = parseLight(ent)
elif ent['type'] == 'camera':
camera = parseCamera(ent)
#create default camera
if camera is None:
camera = PerspectiveCamera(400, 300, 45)
camera.setView(Vec3(0., -10., 10.), Vec3(0., 0., 0.), Vec3(0., 0., 1.))
ret = {'id': id, "objects": objs, 'camera': camera, 'light': light}
return ret
def make_frame(t):
# Specify width/height as in example 5
width = 320
height = 240
# now create a camera and a view like in example 5:
camera = PerspectiveCamera(width, height, 45)
camera.setView(Vec3(0.,-10.,10.), Vec3(0.,0.,0.), Vec3(0.,0.,1.))
# Create a scene
scene = Scene()
# Add a light to the scene
radius = 3.0
p = 2*pi/4
x = radius * cos(t*p)
y = radius * sin(t*p)
scene.addLight(PointLight(Vec3(x, y, 10)))
# create some materials:
floormaterial = PhongMaterial(color=Vec3(0.5,0.5,0.5))
sphere0material = PhongMaterial(color=Vec3(1.,0.,0.))
sphere1material = PhongMaterial(color=Vec3(0.,1.,0.))
sphere2material = PhongMaterial(color=Vec3(0.,0.,1.))
sphere3material = PhongMaterial(color=Vec3(1.,1.,0.))
# Add "floor"
A = Vertex(position=(-5.0, -5.0, 0.0))
B = Vertex(position=( 5.0, -5.0, 0.0))
C = Vertex(position=( 5.0, 5.0, 0.0))
D = Vertex(position=(-5.0, 5.0, 0.0))
scene.add(Triangle(A,B,C, material=floormaterial))
scene.add(Triangle(A,C,D, material=floormaterial))
# Add some spheres
scene.add(Sphere(center=Vec3(-2.5,-2.5,1.75), radius=1.75, material=sphere0material))
scene.add(Sphere(center=Vec3( 2.5,-2.5,1.75), radius=1.75, material=sphere1material))
scene.add(Sphere(center=Vec3( 2.5, 2.5,1.75), radius=1.75, material=sphere2material))
scene.add(Sphere(center=Vec3(-2.5, 2.5,1.75), radius=1.75, material=sphere3material))
# Now tell the scene which camera we use
scene.setCamera(camera)
# Create a raytracer using "SimpleRT"
engine = SimpleRT(shadow=True)
# Render the scene:
image = engine.render(scene)
return image.data
def testCamera(self):
w=320
h=240
# Create a camere with width, height and field of view:
camera = PerspectiveCamera(w, h, 60)
# Set View matrix of camera: define where to look at
camera.setView(Vec3(0, -10, 0), Vec3(0, 0, 0), Vec3(0, 0, 1))
# Get the view-projection matrix
vp = camera.getMatrix()
# Test view-projection matrix
'''self.assertEqual(vp, (1.2990381056766582, 0.0, 0.0, 0.0,
0.0, 0.0, 1.7320508075688774, 0.0,
0.0, 1.0002000200020003, 0.0, 9.801980198019804,
0.0, 1.0, 0.0, 10.0))
'''
# Camera Matrices:
identity = camera.matrixinv * camera.matrix
self.assertEqual(identity, (1.0, 0.0, 0.0, 0.0,
0.0, 1.0, 0.0, 0.0,
0.0, 0.0, 1.0, 0.0,
0.0, 0.0, 0.0, 1.0))
# Check calculated camera position (with inverse view matrix)
pos = camera.viewinv * Vec3(0,0,0)
self.assertEqual(pos, Vec3(0.,-10.,0.0))
# Check front frustum plane:
pos0 = camera.matrixinv * Vec3(-1,-1,-1)
pos1 = camera.matrixinv * Vec3( 1,-1,-1)
pos2 = camera.matrixinv * Vec3( 1, 1,-1)
pos3 = camera.matrixinv * Vec3(-1, 1,-1)
self.assertEqual(pos0, Vec3(-0.07698003589194975, -9.9, -0.05773502691896232))
self.assertEqual(pos1, Vec3(0.07698003589194975, -9.9, -0.05773502691896232))
self.assertEqual(pos2, Vec3(0.07698003589194975, -9.9, 0.05773502691896232))
self.assertEqual(pos3, Vec3(-0.07698003589194975, -9.9, 0.05773502691896232))
# Check back frustum plane:
pos4 = camera.matrixinv * Vec3(-1, -1, 1)
pos5 = camera.matrixinv * Vec3(1, -1, 1)
pos6 = camera.matrixinv * Vec3(1, 1, 1)
pos7 = camera.matrixinv * Vec3(-1, 1, 1)
self.assertEqual(pos4, Vec3(-769.8003589185585, 989.9999999987921, -577.3502691889189))
self.assertEqual(pos5, Vec3(769.8003589185585, 989.9999999987921, -577.3502691889189))
self.assertEqual(pos6, Vec3(769.8003589185585, 989.9999999987921, 577.3502691889189))
self.assertEqual(pos7, Vec3(-769.8003589185585, 989.9999999987921, 577.3502691889189))
def parseCamera(entity):
'''{"type":"camera",'position':"0,-10,10",'center':"0,0,0","width":"400","height":"300"}'''
if entity['type'] != 'camera':
raise ValueError("entity passed to parseCamera is not a camera")
pos = entity['position'].split(',')
center = entity['center'].split(',')
c_pos = Vec3(pos)
c_center = Vec3(center)
width = int(entity['width'])
height = int(entity['height'])
camera = PerspectiveCamera(width, height, 45) #default FOV = 45
camera.setView(c_pos, c_center, Vec3(0., 0., 1.))
return camera
def make_frame(t):
w = 320
h = 240
# Create a camera with width, height and field of view:
camera = PerspectiveCamera(w, h, 60)
# Set View matrix of camera: define where to look at
camera.setView(Vec3(0, -t - 10, 0), Vec3(0, 0, 0), Vec3(0, 0, 1))
# Create view-projection matrix (right to left)
vp = camera.projection * camera.view
# Create a scene
scene = Scene()
# Add a light to the scene
scene.addLight(PointLight(Vec3(0, -2, 0)))
# Create a triangle
t1 = Triangle(Vertex(position=(-5, -4, 5), texcoord=(0, 0)),
Vertex(position=(5, -4, 5), texcoord=(1, 0)),
Vertex(position=(5, -4, -5), texcoord=(1, 1)),
material=
TextureMaterial(texturepath=['tex17-1.png', 'tex17-2.png']))
t2 = Triangle(Vertex(position=(-5, -4, 5), texcoord=(0, 0)),
Vertex(position=(5, -4, -5), texcoord=(1, 1)),
Vertex(position=(-5,-4, -5), texcoord=(0, 1)),
material=
TextureMaterial(texturepath=['tex17-1.png', 'tex17-2.png']))
# Add triangle and sphere to the scene:
scene.add(t1)
scene.add(t2)
# Now tell the scene which camera we use
scene.setCamera(camera)
# Create a raytracer using "SimpleRT"
engine = SimpleRT()
# Render the scene:
image = engine.render(scene)
return image.data
def make_frame(t):
w = 320
h = 240
image = RGBImage(w, h)
# Create a camere with width, height and field of view:
camera = PerspectiveCamera(w, h, 60)
posy = -90 + t * 25 # move camera along y-axis. t is time in seconds.
# Set View matrix of camera: define where to look at
camera.setView(Vec3(0, posy, 0), Vec3(0, 0, 0), Vec3(0, 0, 1))
# Create view-projection matrix (right to left)
vp = camera.projection * camera.view
# Create a triangle
t = Triangle(Vertex(position=(-5, 1, 0)), Vertex(position=(0, 1, 5)),
Vertex(position=(5, 1, 0)))
# Triangle in normalized device coordinates:
at = vp * t.a.position
bt = vp * t.b.position
ct = vp * t.c.position
# Triangle in Screen coordinates:
a_screenpos = Vec2(int(w * 0.5 * (at.x + 1.) / at.z),
int(h * 0.5 * (at.y + 1.) / at.z))
b_screenpos = Vec2(int(w * 0.5 * (bt.x + 1.) / bt.z),
int(h * 0.5 * (bt.y + 1.) / at.z))
c_screenpos = Vec2(int(w * 0.5 * (ct.x + 1.) / ct.z),
int(h * 0.5 * (ct.y + 1.) / at.z))
# Draw the Triangle (wireframe) in image:
color = Vec3(1, 1, 1)
image.drawLine(a_screenpos, c_screenpos, color)
image.drawLine(c_screenpos, b_screenpos, color)
image.drawLine(b_screenpos, a_screenpos, color)
return np.asarray(image.data)
from pyrt.scene import * from pyrt.geometry import Sphere from pyrt.material.texturematerial import TextureMaterial from pyrt.camera import PerspectiveCamera from pyrt.renderer import SimpleRT from pyrt.renderer import RGBImage from pyrt.math import Vec3 from pyrt.geometry import Triangle, Vertex from PIL import Image w = 320 h = 240 # Create a camera with width, height and field of view: camera = PerspectiveCamera(w, h, 60) # Set View matrix of camera: define where to look at camera.setView(Vec3(0, -10, 0), Vec3(0, 0, 0), Vec3(0, 0, 1)) # Create view-projection matrix (right to left) vp = camera.projection * camera.view # Create a scene scene = Scene() # Add a light to the scene scene.addLight(PointLight(Vec3(0, -5, 0))) # Create a triangle t = Triangle(Vertex(position=(-5, 1, 0), texcoord=(0, 0)),
# This time we render two triangles
from pyrt.math import *
from pyrt.scene import *
from pyrt.geometry import Triangle, Vertex
from pyrt.camera import OrthographicCamera, PerspectiveCamera
from pyrt.renderer import SimpleRT
from PIL import Image
# Specify width/height as in example 5
width = 320
height = 240
# now create a camera and a view like in example 5:
camera = PerspectiveCamera(width, height, 60)
camera.setView(Vec3(0,-10,0), Vec3(0,0,0), Vec3(0,0,1))
# Create a scene
scene = Scene()
# Add a triangle (same as example 5) to the scene:
scene.add(Triangle(Vertex(position=(-5, 1, 0), color=(1,1,1)),
Vertex(position=(0, 1, 5), color=(0,1,1)),
Vertex(position=(5, 1, 0), color=(1,1,1))))
scene.add(Triangle(Vertex(position=(5, 1, 0), color=(1,1,1)),
Vertex(position=(0, 1, -5), color=(1,1,0)),
Vertex(position=(-5, 1, 0), color=(1,1,1))))
# Now tell the scene which camera we use
from pyrt.math import * from pyrt.scene import * from pyrt.geometry import Sphere from pyrt.material import PhongMaterial from pyrt.camera import PerspectiveCamera from pyrt.renderer import SimpleRT from PIL import Image # Specify width/height as in example 5 width = 320 height = 240 # now create a camera and a view like in example 5: camera = PerspectiveCamera(width, height, 60) camera.setView(Vec3(0,-10,0), Vec3(0,0,0), Vec3(0,0,1)) # Create a scene scene = Scene() # Add a sphere to the scene: scene.add(Sphere(center=Vec3(0.,0.,0.), radius=3., material=PhongMaterial(color=Vec3(1.,0.,0.)))) # Now tell the scene which camera we use scene.setCamera(camera) # Create a raytracer using "SimpleRT" engine = SimpleRT() # Render the scene:
def testCamera(self):
w = 320
h = 240
# Create a camere with width, height and field of view:
camera = PerspectiveCamera(w, h, 60)
# Set View matrix of camera: define where to look at
camera.setView(Vec3(0, -10, 0), Vec3(0, 0, 0), Vec3(0, 0, 1))
# Get the view-projection matrix
vp = camera.getMatrix()
# Test view-projection matrix
'''self.assertEqual(vp, (1.2990381056766582, 0.0, 0.0, 0.0,
0.0, 0.0, 1.7320508075688774, 0.0,
0.0, 1.0002000200020003, 0.0, 9.801980198019804,
0.0, 1.0, 0.0, 10.0))
'''
# Camera Matrices:
identity = camera.matrixinv * camera.matrix
self.assertEqual(identity, (1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0,
0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0))
# Check calculated camera position (with inverse view matrix)
pos = camera.viewinv * Vec3(0, 0, 0)
self.assertEqual(pos, Vec3(0., -10., 0.0))
# Check front frustum plane:
pos0 = camera.matrixinv * Vec3(-1, -1, -1)
pos1 = camera.matrixinv * Vec3(1, -1, -1)
pos2 = camera.matrixinv * Vec3(1, 1, -1)
pos3 = camera.matrixinv * Vec3(-1, 1, -1)
self.assertEqual(
pos0, Vec3(-0.07698003589194975, -9.9, -0.05773502691896232))
self.assertEqual(pos1,
Vec3(0.07698003589194975, -9.9, -0.05773502691896232))
self.assertEqual(pos2,
Vec3(0.07698003589194975, -9.9, 0.05773502691896232))
self.assertEqual(pos3,
Vec3(-0.07698003589194975, -9.9, 0.05773502691896232))
# Check back frustum plane:
pos4 = camera.matrixinv * Vec3(-1, -1, 1)
pos5 = camera.matrixinv * Vec3(1, -1, 1)
pos6 = camera.matrixinv * Vec3(1, 1, 1)
pos7 = camera.matrixinv * Vec3(-1, 1, 1)
self.assertEqual(
pos4,
Vec3(-769.8003589185585, 989.9999999987921, -577.3502691889189))
self.assertEqual(
pos5, Vec3(769.8003589185585, 989.9999999987921,
-577.3502691889189))
self.assertEqual(
pos6, Vec3(769.8003589185585, 989.9999999987921,
577.3502691889189))
self.assertEqual(
pos7, Vec3(-769.8003589185585, 989.9999999987921,
577.3502691889189))
from pyrt.math import Vec3 from pyrt.scene import Scene from pyrt.light import PointLight from pyrt.light import SpotLight from pyrt.geometry import Triangle, Sphere, Vertex from pyrt.material import PhongMaterial from pyrt.camera import PerspectiveCamera from pyrt.renderer import SimpleRT from PIL import Image # Specify width/height as in example 5 width = 320 height = 240 # now create a camera and a view like in example 5: camera = PerspectiveCamera(width, height, 45) camera.setView(Vec3(0., -10., 10.), Vec3(0., 0., 0.), Vec3(0., 0., 1.)) # Create a scene scene = Scene() # Add a light to the scene #scene.addLight(PointLight(Vec3(0,5,15))) scene.addLight(SpotLight(Vec3(0, 0, 5), Vec3(-0.5, 0.5, -1), 7)) scene.addLight(SpotLight(Vec3(0, 0, 5), Vec3(0, -1, -1), 15)) #scene.addLight(SpotLight(Vec3(2.5, -2.5, 5), Vec3(0, 0, -1), 5)) # create some materials: floormaterial = PhongMaterial(color=Vec3(0.5, 0.5, 0.5)) sphere0material = PhongMaterial(color=Vec3(1., 0., 0.)) sphere1material = PhongMaterial(color=Vec3(0., 1., 0.))
from pyrt.math import Vec3
from pyrt.scene import Scene
from pyrt.light import PointLight
from pyrt.geometry import Triangle, Sphere, Vertex, TriangleMesh
from pyrt.material import PhongMaterial
from pyrt.camera import PerspectiveCamera
from pyrt.renderer import SimpleRT
# Specify width/height as in example 5
width = 320
height = 240
# now create a camera and a view like in example 5:
camera = PerspectiveCamera(width, height, 45)
camera.setView(Vec3(0.,-10.,10.), Vec3(0.,0.,0.), Vec3(0.,0.,1.))
# Create a scene
scene = Scene()
trimesh = TriangleMesh()
trimesh.load("../data/teapot_simple/teapot.obj")
print(trimesh.stats())
center = trimesh.getCentroid()
print(center)
bbox = trimesh.getBBox()
print(bbox)
def make_frame(t):
# Specify width/height as in example 5
width = 320
height = 240
# now create a camera and a view like in example 5:
camera = PerspectiveCamera(width, height, 45)
camera.setView(Vec3(0., -10., 10.), Vec3(0., 0., 0.), Vec3(0., 0., 1.))
# Create a scene
scene = Scene()
# Add a light to the scene
radius = 3.0
p = 2 * pi / 4
x = radius * cos(t * p)
y = radius * sin(t * p)
scene.addLight(PointLight(Vec3(x, y, 10)))
# create some materials:
floormaterial = PhongMaterial(color=Vec3(0.5, 0.5, 0.5))
sphere0material = PhongMaterial(color=Vec3(1., 0., 0.))
sphere1material = PhongMaterial(color=Vec3(0., 1., 0.))
sphere2material = PhongMaterial(color=Vec3(0., 0., 1.))
sphere3material = PhongMaterial(color=Vec3(1., 1., 0.))
# Add "floor"
A = Vertex(position=(-5.0, -5.0, 0.0))
B = Vertex(position=(5.0, -5.0, 0.0))
C = Vertex(position=(5.0, 5.0, 0.0))
D = Vertex(position=(-5.0, 5.0, 0.0))
scene.add(Triangle(A, B, C, material=floormaterial))
scene.add(Triangle(A, C, D, material=floormaterial))
# Add some spheres
scene.add(
Sphere(center=Vec3(-2.5, -2.5, 1.75),
radius=1.75,
material=sphere0material))
scene.add(
Sphere(center=Vec3(2.5, -2.5, 1.75),
radius=1.75,
material=sphere1material))
scene.add(
Sphere(center=Vec3(2.5, 2.5, 1.75),
radius=1.75,
material=sphere2material))
scene.add(
Sphere(center=Vec3(-2.5, 2.5, 1.75),
radius=1.75,
material=sphere3material))
# Now tell the scene which camera we use
scene.setCamera(camera)
# Create a raytracer using "SimpleRT"
engine = SimpleRT(shadow=True)
# Render the scene:
image = engine.render(scene)
return image.data
