本文整理匯總了Python中Vector.normalize方法的典型用法代碼示例。如果您正苦於以下問題：Python Vector.normalize方法的具體用法？Python Vector.normalize怎麽用？Python Vector.normalize使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類Vector的用法示例。
在下文中一共展示了Vector.normalize方法的5個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。
示例1: Specular
# 需要導入模塊: import Vector [as 別名]
# 或者: from Vector import normalize [as 別名]
def Specular(aNormal,aTrianglePoint):
eyeVector = [cameraX - aTrianglePoint[X],
cameraY - aTrianglePoint[Y],
cameraZ - aTrianglePoint[Z],
1.0 - aTrianglePoint[3]]
eyeVector = Vector.normalize(eyeVector)
lightVec = [lightPoint[X] - aTrianglePoint[X],
lightPoint[Y] - aTrianglePoint[Y],
lightPoint[Z] - aTrianglePoint[Z],
lightPoint[W] - aTrianglePoint[W]]
lightVec = Vector.normalize(lightVec)
#caculate the half vector
H = [lightVec[X] + eyeVector[X],
lightVec[Y] + eyeVector[Y],
lightVec[Z] + eyeVector[Z],
lightVec[W] + eyeVector[W]]
#now normalize and dot the half with the normal vec,
#use the shininess constant defined in IncludesAndConstants.py
H = Vector.normalize(H)
d = Vector.dotProduct(aNormal,H)
return math.pow(max(d,0),shininess)示例2: Diffuse
# 需要導入模塊: import Vector [as 別名]
# 或者: from Vector import normalize [as 別名]
def Diffuse(aNormal,aTrianglePoint):
lightVec = [ lightPoint[X] - aTrianglePoint[X],
lightPoint[Y] - aTrianglePoint[Y],
lightPoint[Z] - aTrianglePoint[Z],
lightPoint[W] - aTrianglePoint[W]]
lightVec = Vector.normalize(lightVec)
#print(lightVec[X],lightVec[Y],lightVec[Z])
#print(Vector.length(lightVec))
aNormal = Vector.normalize(aNormal)
return max(Vector.dotProduct(lightVec,aNormal),0) 示例3: TestForCull
# 需要導入模塊: import Vector [as 別名]
# 或者: from Vector import normalize [as 別名]
def TestForCull(aTriangle):
camVector = [IncludesAndConstants.lookPointX - IncludesAndConstants.cameraX,
IncludesAndConstants.lookPointY - IncludesAndConstants.cameraY,
IncludesAndConstants.lookPointZ - IncludesAndConstants.cameraZ,0]
camVector = Vector.normalize(camVector)
normal = [aTriangle.normal[X],aTriangle.normal[Y],aTriangle.normal[Z],0]
normal = Vector.normalize(normal)
if Vector.dotProduct(camVector,normal) <= 0.0:
return True
else:
return False示例4:
# 需要導入模塊: import Vector [as 別名]
# 或者: from Vector import normalize [as 別名]
identityMatrix = Matrix.MatrixMatrixMult(xRotateMatrix,identityMatrix)
identityMatrix = Matrix.MatrixMatrixMult(yRotateMatrix,identityMatrix)
identityMatrix = Matrix.MatrixMatrixMult(zRotateMatrix,identityMatrix)
worldMatrix = Matrix.MatrixMatrixMult(worldMatrix,identityMatrix)
#VIEW MATRIX
#creating a view matrix involves look,up and right vectors, and depending on the orientation and components of the look
#vector
lookVector = [lookPointX - cameraX,lookPointY - cameraY,lookPointZ - cameraZ,0.0]
lookVector = Vector.normalize(lookVector)
rightVector = Vector.crossProduct([0,1,0,0],lookVector)
rightVector = Vector.normalize(rightVector)
upVector = Vector.crossProduct(lookVector,rightVector)
upVector = Vector.normalize(upVector)
CameraPos = [cameraX,cameraY,cameraZ,1]
viewMatrix = [[rightVector[X],upVector[X],lookVector[X],0],
[rightVector[Y],upVector[Y],lookVector[Y],0],
[rightVector[Z],upVector[Z],lookVector[Z],0],
[-(Vector.dotProduct(CameraPos,rightVector)),-(Vector.dotProduct(CameraPos,upVector)),-(Vector.dotProduct(CameraPos,lookVector)),1]]示例5: Camera
# 需要導入模塊: import Vector [as 別名]
# 或者: from Vector import normalize [as 別名]
class Camera(GameObject):
def __init__(self):
self.up = Vector([0,1,0])
self.position = Vector([0,0,-5])
self.lookat = Vector([0,0,0])
self.keysDown = {}
self.keysDownSpecial = {}
self.debug = None
def strafe(self,speed):
if self.debug:
tmpvect = (self.lookat - self.position).normalize()
strafe = tmpvect.cross( self.up );
strafe.y = 0
strafe.normalize();
self.position.x += (strafe.x * speed)
self.position.z += (strafe.z * speed)
self.lookat.x += (strafe.x*speed)
self.lookat.z += (strafe.z*speed)
def move(self, speed):
if self.debug:
move = (self.lookat - self.position)
#move.y = 0
move.normalize()
self.position.x += (move.x * speed)
self.position.z += (move.z * speed)
self.position.y += (move.y * speed)
self.lookat.x += (move.x*speed)
self.lookat.z += (move.z*speed)
self.lookat.y += (move.y*speed)
def yaw(self, angle):
if self.debug:
view = self.lookat - self.position
(sinAngle, cosAngle) = (math.sin(angle), math.cos(angle))
newView = Vector([ view.x * cosAngle + view.z * sinAngle,
view.y,
view.x * -sinAngle + view.z * cosAngle])
self.lookat.x = self.position.x + newView.x
self.lookat.y = self.position.y + newView.y
self.lookat.z = self.position.z + newView.z
def pitch(self, angle):
if self.debug:
view = self.lookat - self.position
view.normalize()
#if( (view.x > 0.99 and angle < 0) or (view.y < -0.99 and angle > 0 ) ):
# return 0
crossViewUp = self.up.cross(view).normalize()
self.up.normalize()
(sinAngle, cosAngle) = (math.sin(angle), math.cos(angle))
newView = Vector( [ (view.x * ( cosAngle + ( 1 - cosAngle) * (crossViewUp.x**2) ) ) + \
(view.y * (( 1 - cosAngle) * crossViewUp.x * crossViewUp.y - sinAngle*crossViewUp.z)) + \
(view.z * (( 1 - cosAngle) * crossViewUp.z * crossViewUp.x + sinAngle*crossViewUp.y) ),
(view.x * (( 1 - cosAngle) * crossViewUp.x * crossViewUp.y + sinAngle*crossViewUp.z)) + \
(view.y * ( cosAngle + ( 1 - cosAngle) * (crossViewUp.y**2) ) ) + \
(view.z * (( 1 - cosAngle) * crossViewUp.z * crossViewUp.y - sinAngle*crossViewUp.x) ),
(view.x * (( 1 - cosAngle) * crossViewUp.x * crossViewUp.z - sinAngle*crossViewUp.y) )+ \
(view.y * (( 1 - cosAngle) * crossViewUp.z * crossViewUp.y + sinAngle*crossViewUp.x)) + \
(view.z * ( cosAngle + ( 1 - cosAngle) * (crossViewUp.z**2) ) ) ])
self.lookat = (self.position + newView )
def apply(self):
glMatrixMode(GL_MODELVIEW)
glLoadIdentity()
gluLookAt( self.position.x, self.position.y, self.position.z,
self.lookat.x, self.lookat.y, self.lookat.z,
self.up.x, self.up.y, self.up.z )