One common challenge in molecular modeling is efficiently managing the visibility of nodes to focus on specific aspects of your model. Whether you’re preparing a presentation or focusing on dynamic interactions, adjusting node visibility manually can take significant time and effort. This is where SAMSON’s Flash animation can make a difference.
What is the Flash Animation?
The Flash animation in SAMSON allows you to make nodes appear and disappear dynamically between keyframes. Unlike adjusting transparency, this animation changes node visibility directly, offering a seamless way to highlight or hide elements while maintaining clarity in your molecular scene.
For example, you can make a complex structure progressively appear to guide viewers through it step by step, enhancing understanding and keeping attention focused where it matters most.
How Does It Work?
The Flash animation is designed with 4 keyframes:
- Keyframes 1 to 2: Nodes remain hidden.
- Keyframe 2: Nodes become visible.
- Keyframes 2 to 3: Nodes stay visible.
- Keyframe 3: Nodes are hidden again, and they remain hidden until Keyframe 4.
This structured approach allows you to create clear and purposeful animations. You can then manually position and adjust these keyframes as per your presentation or analysis needs.
Steps to Add the Flash Animation
To add the Flash animation to your nodes, simply follow these steps:
- Select the nodes you want to animate. These can be atoms, molecules, or any other defined structures in your model.
- Navigate to the Animation panel in SAMSON’s Animator.
- Double-click on the Flash animation effect to apply it.
- Adjust the position of the keyframes to define when the nodes become visible or hidden. You can move these keyframes freely to tailor the timeline of the animation to your specific needs.
By using these steps, you maintain full control over timing and presentation, ensuring your model behaves exactly as intended during your animations.
Refining Your Animation with Easing
To further enhance the smoothness of the transitions between keyframes, you can edit the parameters using the Easing curve. This allows you to fine-tune how visibility shifts occur, providing a more polished and natural look to your animation.

Why Use Flash Animation?
Flash animation is particularly useful when:
- You need to guide your audience through a stepwise exploration of a structure.
- You want to emphasize specific molecular interactions or regions while hiding unnecessary details.
- You’re creating educational content requiring dynamic and clear visual representation.
It simplifies the process of animating node visibility and improves the clarity and accessibility of molecular presentations.
For more detailed instructions on using the Flash animation, visit the official documentation page: https://documentation.samson-connect.net/users/latest/animations/flash/.
SAMSON and all SAMSON Extensions are free for non-commercial use. You can get SAMSON at https://www.samson-connect.net.
