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Experimental rotation conversion

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This commit is contained in:
Star Brilliant 2014-04-30 20:36:09 +08:00
parent 6abc7338e2
commit a18c90d7c3
1 changed files with 2 additions and 14 deletions
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16
danmaku2ass.py
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@ -542,7 +542,7 @@ def ConvertFlashRotation(rotY, rotZ, X, Y, FOV=math.tan(2*math.pi/9.0)):
Y = 2*Y-1
rotY = WrapAngle(rotY)
rotZ = WrapAngle(rotZ)
if rotY in (0, 180) or rotZ in (0, 180):
if rotY == 0 or rotZ == 0:
outX = 0
outY = -rotY # Positive value means clockwise in Flash
outZ = -rotZ
@ -551,19 +551,7 @@ def ConvertFlashRotation(rotY, rotZ, X, Y, FOV=math.tan(2*math.pi/9.0)):
rotZ = rotZ*math.pi/180.0
outY = math.atan2(-math.sin(rotY)*math.cos(rotZ), math.cos(rotY))*180/math.pi
outZ = math.atan2(-math.cos(rotY)*math.sin(rotZ), math.cos(rotZ))*180/math.pi
#outX = math.asin(math.sin(rotY)*math.sin(rotZ))*180/math.pi
outX = math.acos(math.cos(rotY)/math.cos(outY*math.pi/180.0))*180/math.pi
#outX = math.atan2(-math.sin(rotY)*math.cos(rotZ)*abs(math.cos(outY*math.pi/180.0)*(1 if math.sin(outY*math.pi/180.0) >= 0 else -1)), math.cos(rotY)*abs(math.sin(outY*math.pi/180.0)*(1 if math.cos(outY*math.pi/180.0) >= 0 else -1)))*180/math.pi
'''
print(
(rotY*180.0/math.pi, rotZ*180.0/math.pi),
(outX, outY, outZ),
(
math.sin(rotY)*math.sin(rotZ),
-(math.sin(rotY)+math.sin(outY*math.pi/180.0)*math.cos(outZ*math.pi/180.0))/math.cos(outY*math.pi/180.0)/math.sin(outZ*math.pi/180.0)
)
)
'''
outX = math.asin(math.sin(rotY)*math.sin(rotZ))*180/math.pi
if FOV is not None:
outX = CalcPerspectiveCorrection(outX, -Y, FOV*0.75)
outY = CalcPerspectiveCorrection(outY, X, FOV)