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Experimental 3D rotation handling

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Star Brilliant 2014-06-08 20:32:35 +08:00
parent e1efa02113
commit f5901c751e
1 changed files with 9 additions and 2 deletions
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danmaku2ass.py
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@ -528,9 +528,16 @@ def ConvertFlashRotation(rotY, rotZ, X, Y, width, height):
outX = math.asin(math.sin(rotY)*math.sin(rotZ))*180/math.pi
rotY *= math.pi/180.0
rotZ *= math.pi/180.0
trX = (X*math.cos(rotZ)+Y*math.sin(rotZ))/math.cos(rotY)+math.tan(rotY*math.pi/180.0)+(1-math.cos(rotZ)/math.cos(rotY))*width/2-math.sin(rotZ)/math.cos(rotY)*height/2
trX = (X*math.cos(rotZ)+Y*math.sin(rotZ))/math.cos(rotY)+(1-math.cos(rotZ)/math.cos(rotY))*width/2-math.sin(rotZ)/math.cos(rotY)*height/2
trY = Y*math.cos(rotZ)-X*math.sin(rotZ)+math.sin(rotZ)*width/2+(1-math.cos(rotZ))*height/2
return (round(trX), round(trY), WrapAngle(round(outX)), WrapAngle(round(outY)), WrapAngle(round(outZ)), 100, 100)
trZ = (trX-width/2)*math.sin(rotY)
FOV = width*math.tan(2*math.pi/9.0)/2
scaleXY = FOV/(FOV+trZ)
if scaleXY < 0:
logging.error('Clipped rotation: trZ == %.0f < %.0f' % (trZ, FOV));
trX = (trX-width/2)*scaleXY+width/2
trY = (trY-height/2)*scaleXY+height/2
return (round(trX), round(trY), WrapAngle(round(outX)), WrapAngle(round(outY)), WrapAngle(round(outZ)), round(scaleXY*100), round(scaleXY*100))
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