I have a script that is supposed to run through every frame and output a selected camera’s animation data. The problem I’ve run into is that the performance of the script decreases as the total animation range increases. For example, if I have a 100 frame range it takes about 3 seconds to get through all 100 frames, but if I have a 3000 frame range it takes 20 seconds to get through those same 100 frames. I’ve already done everything I thought would help for optimization with no luck. What could be the underlying issue?
camExportDummy = Dummy name:"CameraExportDummy" pos:[0,0,0]
disablesceneredraw
undo off
for i = animationRange.start to animationRange.end do
(
sliderTime = i
cbTimestamp = at time i $MetadataDummy.modifiers[1].replayCurrentFrame as string
format "%\t\t"cbTimestamp to:outFile
camx = at time i $.transform.pos.x
camy = at time i $.transform.pos.y*-1
camz = at time i $.transform.pos.z
format "%,%,%\t" camx camy camz to:outFile
camExportDummy.rotation = at time i $.transform.rotation
camExportDummy.transform *= (rotateXmatrix 90)
camExportDummy.transform *= (rotateZmatrix -90)
camQX = camExportDummy.rotation.x
camQY = camExportDummy.rotation.y
camQZ = camExportDummy.rotation.z
camQW = camExportDummy.rotation.w
format "%,%,%,%\t" -camQX camQY -camQZ camQW to:outFile
camFOV = at time i $.fov
format "%\t" camFOV to:outFile
camFocus = at time i $.mpassEffect.focalDepth
format "%" camFocus to:outFile
if i < end - 1 do
format "\n" to:outFile
i += 1
)
delete camExportDummy
close outFile
undo on
enableSceneRedraw
for i = animationRange.start to animationRange.end do at time i
(
cbTimestamp = $MetadataDummy.modifiers[1].replayCurrentFrame as string
format "%\t\t"cbTimestamp to:outFile
pos = $.transform.pos * [1,-1,1]
format "%,%,%\t" pos.x pos.y pos.z to:outFile
rot_tm = $.transform.rotation as matrix3
rotateX rot_tm 90
rotateZ rot_tm -90
camQ = rot_tm.rotation
format "%,%,%,%\t" -camQ.x camQ.y -camQ.z camQ.w to:outFile
camFOV = $.fov
format "%\t" camFOV to:outFile
camFocus = $.mpassEffect.focalDepth
format "%" camFocus to:outFile
if i < end - 1 do
format "\n" to:outFile
--i += 1
)
close outFilei don’t have max around to test, but get the idea.
you don’t need to move slider, and you should use ‘at time’ context only once
Thanks, that fixed it! Now it’s doing all 3000 frames in under a second. However, I had to keep my original rotateXmatrix section of the code since the rot_tm section in the example was returning different values