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The script is an extension of → "Camera Operations" and works as a batch script instead of a simulation script. The camera positions are cached, translated into animation keys, and added to the → "Curve Editor".
The script is for Y-based axis setups. If you have a Z-based axis setup you have to swap the Y and Z values:go to → "Animation Keys (Z-Setup)".
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import math
camera = scene.getCamera("SceneCamera01")
focusObject = scene.getObject("Cube01")
objectPosition = focusObject.getParameter("Position")
frame = scene.getCurrentFrame()
radius = 1.5
cycles = 3.0
verticalPosition = 0.5
orientation = 0
positionCache = []
indexCounter = 0
curvePosX = camera.getParameterCurve("Position.X")
curvePosY = camera.getParameterCurve("Position.Y")
curvePosZ = camera.getParameterCurve("Position.Z")
camera.setParameter("LookAt", objectPosition)
if (orientation == 0): sign = 1
else : sign = -1
simRange = scene.getMaxFrames() - scene.getMinFrame()
degPerFrame = (360.0 / simRange) * cycles
for i in range(0, simRange - 1):
radians = (sign * degPerFrame * math.pi / 180.0) * float(i)
xCoord = math.cos(radians) * radius + objectPosition.getX()
zCoord = math.sin(radians) * radius + objectPosition.getZ()
positionCache.append(Vector.new(xCoord, verticalPosition, zCoord))
for entry in positionCache:
currentTime = float(indexCounter) / scene.getFps()
keyX = Key.new()
keyY = Key.new()
keyZ = Key.new()
keyX.time = currentTime
keyX.value = entry.x
keyX.type = KEY_TYPE_TCB
curvePosX.addKey(keyX)
keyY.time = currentTime
keyY.value = entry.y
keyY.type = KEY_TYPE_TCB
curvePosY.addKey(keyY)
keyZ.time = currentTime
keyZ.value = entry.z
keyZ.type = KEY_TYPE_TCB
curvePosZ.addKey(keyZ)
indexCounter += 1 |