As a molecular modeler, you want to keep your eyes on the details that matter the most, even as systems are in motion. Whether it’s tracking a ligand interacting with its binding site or observing a dynamic process within a protein structure, keeping your viewpoint fixed on specific atoms can often feel like a challenge. Here’s where SAMSON’s Look at atoms animation becomes a helpful ally.
What is the ‘Look at atoms’ animation?
The Look at atoms feature makes the camera continuously look at the geometric center of specific atoms you’ve selected. Although the camera position remains unchanged, the camera target shifts dynamically, following the movement of your chosen atoms as the animation progresses. This can be particularly useful when animating molecular trajectories while ensuring a steady focus on a critical area of a system.
For example, imagine analyzing how a molecular conformer’s position changes within a dynamic network. You can let the Look at atoms animation lock your focus on specific bonds, residues, or molecules of interest without the distraction of adjusting the camera manually.
Setting It Up
Setting up this animation is straightforward:
- Select the atoms you want to track. Before proceeding, orient your camera view so you’re comfortable with the perspective.
- Open the Animation panel within the SAMSON Animator. Locate the Look at atoms animation and simply double-click it while in the desired track view.
- Specify the animation’s start and end frames, which represent the timeframe over which the camera will follow the selected atoms. This can always be adjusted later on, so don’t worry about getting this perfect right away.
Advanced Customizations
This feature isn’t one-size-fits-all. For seasoned modelers or those working on complex structures, adjusting the following properties can refine your animation:
- The default behavior applies the animation to the active camera. To direct it elsewhere, inspect the animation configuration and change the Apply to active camera option.
- Animations consider whether the grid is turned on. You can toggle the Keep camera upwards setting to influence how differently your animation behaves depending on the grid status.
When needed, you can modify the camera’s position mid-animation while keeping the camera target locked on the specified atoms. Explore more about this in SAMSON’s guide on Adjusting camera positions.
A Visual Example
Here’s an example of the Look at atoms animation in action. Notice how the camera target dynamically follows the selected atoms without altering the camera position:
Conclusion
Whether you’re analyzing molecular interactions in detail or focusing on key structural regions during a simulation, the Look at atoms animation ensures you stay locked on your target. This smooth and intuitive feature saves time, reduces manual adjustments, and enhances the clarity of your work.
Ready to start experimenting? Learn more on the official documentation page: https://documentation.samson-connect.net/users/latest/animations/look-at-atoms/.
Note: SAMSON and all SAMSON Extensions are free for non-commercial use. You can download SAMSON at https://www.samson-connect.net.