A molecular scene can be difficult to follow when the camera simply zooms toward a feature. The region of interest may shift in the frame, or the view may not communicate the change in perspective you intended. In SAMSON, the Dolly camera animation offers another approach: it changes both the camera’s position and its target point between the animation’s start and end frames.
This is useful when you want to guide attention from one part of a molecular system to another while changing the view. It can also help when you use effects such as fog or depth of field, whose visual focus may depend on the camera’s target point.
Dolly or zoom: what is the difference?
The Zoom camera animation uses a single target point. Dolly camera can use different target points at the start and end of the animation. In practical terms, that gives you a way to animate not only where the camera is, but also what the view is aimed at as the scene changes.
That distinction matters when a zoom alone does not keep the desired feature framed, or when you want the endpoint of a camera move to look toward a different area. If your goal is simply to move the camera, the Move camera animation is another option to consider.
Set up the shot from the view you want
- In the Animator’s Track view, choose the frame where the camera animation should begin.
- Orient the view until the camera is positioned as you want it at the start.
- In the Animator’s Animation panel, double-click Dolly camera.
- Set the animation’s end frame. You can move the start and end frames later if the timing needs adjustment.
The first view you establish is important: the animation begins from the camera position and target at its start frame. Before adding the effect, take a moment to frame the molecular region that should introduce the shot. Then review the ending view and adjust the camera positions and target points with the animation controllers if needed.
Check which camera the animation affects
By default, camera animations are applied to the active camera. The animation’s target point is based on that camera’s current target position, which is essentially the center of the view. If you need a different setup, inspect the animation and change the Apply to active camera option.
It is worth checking the active camera before you build a sequence, especially if your scene contains more than one camera. Otherwise, you may adjust the view you are looking through while the animation is assigned according to a different camera setting.
Mind the grid and the transition
Camera positions can be defined differently depending on whether the grid is switched on or off. The Keep camera upwards option controls whether the animation’s behavior depends on the grid state. You can inspect the animation to change this option. If the camera’s orientation matters to your composition, check the result with the grid state you intend to use.
The transition between the start and end frames is also adjustable. Dolly camera uses an Easing curve to interpolate camera parameters. Changing the curve changes how those parameters progress through the animation. Reviewing the animation at intermediate frames can help you judge whether the movement feels appropriate for the scene, rather than checking only its beginning and end.
A helpful way to think about Dolly camera is as a framing tool: choose the opening view, define where the camera should finish looking, then refine the positions and timing. For the full instructions and property details, see the Dolly camera documentation.
Note: SAMSON and all SAMSON Extensions are free for non-commercial use. Get SAMSON.