Molecular modelers often face the challenge of visualizing complex molecular systems effectively while maintaining clarity and accuracy. SAMSON simplifies this task with its powerful Visual Presets feature, enabling users to apply rich visual representations and color schemes to molecular structures with just a few clicks.
What Are Visual Presets, and Why Do They Matter?
Visual presets are pre-defined combinations of visual representations and color schemes. Instead of individually modifying settings for each molecular element, visual presets let you apply a cohesive visualization style to complex systems in seconds. This not only saves time but also ensures consistency across your projects.
Imagine working on a protein-ligand system and needing to highlight key interactions. With visual presets, this visualization can be achieved instantly, providing insights into your molecular system with enhanced clarity.
Getting Started with Visual Presets
Visual presets can be accessed directly from the Home menu or the Visualization menu. Simply navigate to one of these menus, select “Visual preset,” and choose from a variety of existing options. SAMSON provides users with a set of default presets, such as the Protein-ligand preset, which highlights protein-ligand interactions beautifully.
Here’s an example of how the Protein-ligand preset transforms PDB code 1AA1 into a clear and concise visualization:

Take Control: Create Your Own Visual Presets
What if the default presets don’t fully meet your needs? SAMSON’s Visual Preset Editor puts you in control by allowing you to modify existing presets or create new ones from scratch.
How to Create a Custom Visual Preset
To start creating a custom preset, follow these steps:
- Go to Home > Visual preset > Create… or Visualization > Visual preset > Create….
- To base your preset on an existing one, select it, and begin editing by adding or removing steps, changing selections, or modifying visual models and color schemes.
- To create a completely new preset, click on the “plus” button next to the preset list and add steps to define clear, actionable visualizations.
Each step allows you to:
- Define a selection of nodes (e.g., “Receptor” or “Ligands”).
- Apply actions, such as “Zoom on selection” or “Label atoms.”
- Choose a visual model like “Van der Waals” or “Ribbons.”
- Select a colorization scheme (e.g., “Per chain” or “Constant”).
Here are some examples of configuring a new preset visually:




Building your custom visual presets enables you to create tailor-made visualizations that streamline analysis and presentations.
Summary
SAMSON’s visual presets not only enhance your ability to understand molecular structures but also open up a world of customization for personalized visualization workflows. Whether you’re applying a default option or creating your own, visual presets stand as a critical tool for molecular modelers aiming to save time and elevate clarity in their projects.
To dive deeper into how visual presets work and their features, explore the official documentation.
SAMSON and all SAMSON Extensions are free for non-commercial use. Download SAMSON at SAMSON Connect.
