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The script makes a camera ("Camera01SceneCamera01") to spin around a cube object ("Cube01"). During the motion the camera will look at the cube.
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The script is for Z-based axis setups. If you have a Y-based axis setup go to → "Camera Operations (Y-Setup)"
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# Load Python's math module import math # Get the camera "SceneCamera01" and a focus object "Cube01" # Initialize standard values 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 # Make the camera look at the "focusObject" node's position if (frame == scene.getMinFrame()): camera.setParameter("LookAt", objectPosition) # Clockwise or counter-clockwise? if (orientation == 0): sign = 1 else : sign = -1 # Get the simulation range simRange = float(scene.getMaxFrames() - scene.getMinFrame()) - 1.0 # Calculate how many degrees the camera covers within a single frame # Convert the result from degrees to radians degPerFrame = (360.0 / simRange) * cycles radians = (sign * degPerFrame * math.pi / 180.0) * frame # Calculate the XY coordinates based on the available values xCoord = math.cos(radians) * radius + objectPosition.x yCoord = math.sin(radians) * radius + objectPosition.y cameraPosition = Vector.new(xCoord, yCoord, verticalPosition) # Assemble a position vector and apply it to the camera to make it move camera.setParameter("Position", cameraPosition) |