from visual import *

show_sphere = True

scene.width = scene.height = 800

names = ['wood', 'rough', 'marble', 'plastic', 'earth', 'diffuse', 'emissive', 'unshaded',

'shiny', 'chrome', 'blazed', 'silver', 'bricks', 'BlueMarble', 'ice', 'glass']

lookup = {"wood" : materials.wood, "rough" : materials.rough,

"marble" : materials.marble, "plastic" : materials.plastic,

"earth" : materials.earth, "diffuse" : materials.diffuse,

"emissive" : materials.emissive, "unshaded" : materials.unshaded,

"shiny" : materials.shiny, "chrome" : materials.chrome,

"blazed" : materials.blazed, "silver" : materials.silver,

"bricks" : materials.bricks, "BlueMarble" : materials.BlueMarble,

"ice" : materials.ice, "glass" : materials.glass}

def destroy():

for obj in scene.objects:

obj.visible = False

del obj

def show_object(index, x, y, show_sphere):

sphere(pos=(x,y,0), radius=R/5, color=color.red)

mat = lookup[names[index]]

if show_sphere:

s = sphere(pos=(x,y,0), radius=R, material=mat, index=index)

if names[index] == "bricks":

s.rotate(angle=pi/2, axis=(1,0,0))

else:

box(pos=(x,y,0), size=(D,D,D), material=mat, index=index)

label(pos=(x,y-.5), box=0, text=names[index])

D = 0.7 # size of box

R = .4 # radius of sphere

first = True

show = -1 # means show all the objects

while True:

destroy()

scene.range = 2.2

scene.fov = 0.5

scene.center = (1.5,1.5)

scene.forward = (0,0,-1)

if first: scene.visible = False

index = 0

for y in range(4):

for x in range(4):

if index >= 16: break

show_object(index, x, 3-y, show_sphere)

index += 1

label(pos=(1.5,3.53), box=0,

text="Hit a key to toggle between spheres and boxes, or click an object to enlarge it.")

if first: scene.visible = True

first = False

picked = None

while True:

rate(30)

if scene.mouse.events:

m = scene.mouse.getevent()

if m.click and picked:

picked = None

break

elif m.click and m.pick:

mouseloc = scene.mouse.project(normal=(0,0,1))

xp, yp = (mouseloc.x, mouseloc.y)

x, y = (m.pick.x, m.pick.y)

if (x-xp)**2 + (y-yp)**2 < R**2:

picked = m.pick

destroy()

scene.center = (0,-.1*R,0)

scene.range = 1.5*R

show_object(m.pick.index, 0, 0, show_sphere)

label(pos=(0,1.2*R), box=0, text="Hit a key to toggle between spheres and boxes, or click to see all materials.")

elif scene.kb.keys:

scene.kb.getkey()

show_sphere = (not show_sphere)

if not picked: break

destroy()

scene.forward = (0,0,-1)

show_object(m.pick.index, 0, 0, show_sphere)

label(pos=(0,1.2*R), box=0, text="Hit a key to toggle between spheres and boxes, or click to see all materials.")