def baseColourAt(self, p):
v = p - PZERO
v.scale(1.0 / self.checkSize)
if (hax.ftoi(hax.abs(v.x) + 0.5) + \
hax.ftoi(hax.abs(v.y) + 0.5) + \
hax.ftoi(hax.abs(v.z) + 0.5)) \
% 2:
return self.otherColour
else:
return self.baseColour
def baseColourAt(self, p):
v = p - PZERO
v.scale(1.0 / self.checkSize)
if (hax.ftoi(hax.abs(v.x) + 0.5) + \
hax.ftoi(hax.abs(v.y) + 0.5) + \
hax.ftoi(hax.abs(v.z) + 0.5)) \
% 2:
return self.otherColour
else:
return self.baseColour
def render(self, canvas):
#print 'Computing field of view'
fovRadians = math.pi * (self.fieldOfView / 2.0) / 180.0
halfWidth = math.tan(fovRadians)
halfHeight = 0.75 * halfWidth
width = halfWidth * 2
height = halfHeight * 2
pixelWidth = width / (canvas.width - 1)
pixelHeight = height / (canvas.height - 1)
eye = Ray(self.position, self.lookingAt - self.position)
vpRight = eye.vector.cross(VUP).normalized()
vpUp = vpRight.cross(eye.vector).normalized()
#print 'Looping over pixels'
previousfraction = 0.0
for y in range(canvas.height):
currentfraction = hax.itof(y) / canvas.height
if currentfraction - previousfraction > 0.05:
print '%d%% complete' % hax.ftoi(currentfraction * 100)
previousfraction = currentfraction
for x in range(canvas.width):
xcomp = vpRight.scale(x * pixelWidth - halfWidth)
ycomp = vpUp.scale(y * pixelHeight - halfHeight)
ray = Ray(eye.point, eye.vector + xcomp + ycomp)
colour = self.rayColour(ray)
canvas.plot(x,y,colour[0], colour[1], colour[2])
print 'Complete.'
canvas.save()
def render(self, canvas):
#print 'Computing field of view'
fovRadians = math.pi * (self.fieldOfView / 2.0) / 180.0
halfWidth = math.tan(fovRadians)
halfHeight = 0.75 * halfWidth
width = halfWidth * 2
height = halfHeight * 2
pixelWidth = width / (canvas.width - 1)
pixelHeight = height / (canvas.height - 1)
eye = Ray(self.position, self.lookingAt - self.position)
vpRight = eye.vector.cross(VUP).normalized()
vpUp = vpRight.cross(eye.vector).normalized()
#print 'Looping over pixels'
previousfraction = 0.0
for y in range(canvas.height):
currentfraction = hax.itof(y) / canvas.height
if currentfraction - previousfraction > 0.05:
print '%d%% complete' % hax.ftoi(currentfraction * 100)
previousfraction = currentfraction
for x in range(canvas.width):
xcomp = vpRight.scale(x * pixelWidth - halfWidth)
ycomp = vpUp.scale(y * pixelHeight - halfHeight)
ray = Ray(eye.point, eye.vector + xcomp + ycomp)
colour = self.rayColour(ray)
canvas.plot(x, y, colour[0], colour[1], colour[2])
print 'Complete.'
canvas.save()
def plot(self, x, y, r, g, b):
i = ((self.height - y - 1) * self.width + x) * 3
self.bytes[i ] = hax.max(0, hax.min(255, hax.ftoi(r * 255)))
self.bytes[i+1] = hax.max(0, hax.min(255, hax.ftoi(g * 255)))
self.bytes[i+2] = hax.max(0, hax.min(255, hax.ftoi(b * 255)))
def plot(self, x, y, r, g, b):
i = ((self.height - y - 1) * self.width + x) * 3
self.bytes[i] = hax.max(0, hax.min(255, hax.ftoi(r * 255)))
self.bytes[i + 1] = hax.max(0, hax.min(255, hax.ftoi(g * 255)))
self.bytes[i + 2] = hax.max(0, hax.min(255, hax.ftoi(b * 255)))