Summary
This scene shows refractions, reflections, and shadows with up to a recursive depth of 8, in addition to the primary ray.
The specular calculations use the Hall lighting model.
Rendering uses BVH acceleration and adaptive supersampling with two levels of subdivision.
The shadow rays now use BVH acceleration as well, which they previously didn't.
Rendering time using on my M1 Mac Mini was 2412 seconds, quite a lot slower than assignnment 6.
Scene Setup
The camera for the scene is setup at (0,0,4) for the eye point, with a view direction of (0,0,-1) and a view up direction of (0, 1,0 ). The view plane distance is 6, and the horizontal camera angle is PI / 6.
The scene has three point light sources:
- a white light at (0, 15, 5)
- a redish light color=(0.5, 0.1, 0.2) at ( 5, 15, 5)
- a blueish light color=(0.2, 0.1, 0.5) at ( -5, 15, 5)
The scene has a floor (made from a scaled cube) underneath to provide a surface for shadows. The other objects are five spheres, a cube, a scaled transmissive cube, a green transmissive frog, a mesh cylinder, a bunny, a cow, and a teddy bear.
Bunny ID=1
transform[
translate=[1.4, -1, 0]
scale=[2, 2, 2]
rotate=[0, -1.0472, 0]
]
surface[
colors diffuse=(0.8, 0.2, 0.9), ambient=(0.8, 0.2, 0.9), specular=(1, 1, 1)
coeff. diffuse=0.5, ambient=0.1, specular=0.7
specular factor=30
reflection=0.1
]
Sphere 1 ID=2
center=[3, -1.1, -5]
radius=0.7
surface[
colors diffuse=(0.0117647, 0.32549, 0.592157), ambient=(1, 1, 1), specular=(1, 1, 1)
coeff. diffuse=0.8, ambient=0.1, specular=0.4
specular factor=25
reflection=0.1
]
Sphere 2 ID=3
center=[-2.9, -1, -1.5]
radius=1
surface[
colors diffuse=(1, 1, 1), ambient=(1, 1, 1), specular=(1, 1, 1)
coeff. diffuse=0.05, ambient=0.05, specular=0.1
specular factor=999
reflection=1
]
Sphere 3 ID=4
center=[2, 1, -20]
radius=8
surface[
colors diffuse=(0.470588, 0.988235, 0.54902), ambient=(1, 1, 1), specular=(1, 1, 1)
coeff. diffuse=0.8, ambient=0.1, specular=0.4
specular factor=25
reflection=0.5
]
Sphere 4 ID=5
center=[6, 0.2, -9]
radius=2
surface[
colors diffuse=(0.988235, 0.0784314, 0.0784314), ambient=(1, 1, 1), specular=(1, 1, 1)
coeff. diffuse=0.8, ambient=0.1, specular=0.4
specular factor=25
reflection=0.1
]
Sphere 5 ID=6
center=[0, 0.5, -3]
radius=1
surface[
colors diffuse=(1, 1, 1), ambient=(1, 1, 1), specular=(1, 1, 1)
coeff. diffuse=0.05, ambient=0.05, specular=0.1
specular factor=25
reflection=0
]
Teddy ID=7
transform[
translate=[-3, 1, -9]
scale=[0.15, 0.15, 0.15]
rotate=[0, 0.785398, 0]
]
surface[
colors diffuse=(0, 0.117647, 1), ambient=(0, 0.117647, 1), specular=(1, 1, 1)
coeff. diffuse=0.5, ambient=0.1, specular=0.5
specular factor=25
reflection=0.3
]
Cow ID=8
transform[
translate=[-3.3, -0.3, -2.2]
scale=[3.2, 3.2, 3.2]
rotate=[0, -1.5708, 0]
]
surface[
colors diffuse=(0.909804, 0.388235, 0.0392157), ambient=(0.909804, 0.388235, 0.0392157), specular=(1, 1, 1)
coeff. diffuse=0.3, ambient=0.1, specular=0.6
specular factor=15
reflection=0.1
]
Cylinder ID=9
transform[
translate=[3, -1, -2]
scale=[1, 1, 1]
rotate=[0.523599, 0, 0]
]
surface[
colors diffuse=(0.988235, 0.85098, 0), ambient=(0.988235, 0.85098, 0), specular=(0.988235, 0.85098, 0)
coeff. diffuse=0.8, ambient=0.05, specular=0.05
specular factor=2
reflection=0.1
]
Cube ID=10
transform[
translate=[0, 3.5, -11]
scale=[1, 1, 1]
rotate=[0, -1.0472, 0]
]
surface[
colors diffuse=(0, 0.117647, 0.423529), ambient=(0, 0.117647, 0.423529), specular=(0, 0.117647, 0.423529)
coeff. diffuse=0.8, ambient=0.1, specular=0.4
specular factor=25
reflection=0.1
]
Window ID=11
transform[
translate=[2, 1, -4]
scale=[3, 4, 0.5]
rotate=[0, -0.628319, 0]
]
surface[
colors diffuse=(1, 1, 1), ambient=(1, 1, 1), specular=(1, 1, 1)
coeff. diffuse=0.03, ambient=0.03, specular=0.03
specular factor=25
reflection=0
]
Frog ID=12
transform[
translate=[-0.1, 0, -2]
scale=[1.3, 1.3, 1.3]
rotate=[0, 0, 0]
]
surface[
colors diffuse=(0.752941, 1, 0.752941), ambient=(0.752941, 1, 0.752941), specular=(0.752941, 1, 0.752941)
coeff. diffuse=0.05, ambient=0.05, specular=0.1
specular factor=25
reflection=0
]
Floor ID=13
transform[
translate=[0, -2, -6.7]
scale=[14, 0.2, 14]
rotate=[0, -0.523599, 0]
]
surface[
colors diffuse=(0.8, 0.8, 0.8), ambient=(0.8, 0.8, 0.8), specular=(0.8, 0.8, 0.8)
coeff. diffuse=0.8, ambient=0.1, specular=0.1
specular factor=2
reflection=0
]
