GL File – What is .gl file and how to open it?

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GL File Extension

GRASP Animation – file format by John Bridges

GL file extension is associated with GRASP Animation, a 3D computer graphics program developed by John Bridges. The GL files are 3D animation project files that contain references to models, textures, animations, and other data.

Definition of a GL File

A GL file is a file that contains 3D animation data created using the GRASP (Graphics and Robot Animation Software Platform) software. GRASP is a free and open-source software for creating, editing, and simulating 3D models and animations. GL files are used to store the skeletal structure, animations, and other data associated with 3D models.

Use and Compatibility

GL files are primarily used within the GRASP software environment for creating and editing 3D animations. However, the GL file format is also supported by other 3D modeling and animation software, allowing for the sharing and interchange of animation data between different platforms. GL files can be opened and edited in software such as Blender, Maya, and 3ds Max. Additionally, GL files can be exported to various other file formats, such as COLLADA (.dae), OBJ (.obj), and FBX (.fbx), for further compatibility and use in different contexts.

Opening GL Files with GRASP

GRASP (Graphics and Robotics Animation System Processor) is a specialized software developed by John Bridges for animation and robotics simulation. It utilizes the .GL file format to store animated models and scenes. To open a GL file in GRASP, users need to:

  1. Obtain GRASP software: Visit the GRASP website (https://grasp.sourceforge.io/) to download and install the latest version of the software.
  2. Locate GL file: Ensure that you have the GL file you wish to open on your computer.
  3. Open GL file in GRASP: Launch the GRASP application. From the File menu, select Open and then browse to the location of the GL file. Select the file and click Open.
  4. Explore and edit animation: Once the GL file is loaded into GRASP, you can view and manipulate the animated models and scenes. The software provides various tools for editing, including animation playback, model scaling, and camera manipulation.

Alternative Methods for Opening GL Files

In addition to GRASP, there are a few other software programs that can open GL files. However, it’s important to note that these programs may not offer the same level of functionality and support as GRASP. Some alternative options include:

  1. Blender (GLTF format): Blender is a popular free and open-source 3D modeling software that can import GL files in the GLTF (GL Transmission Format) format. Convert the GL file to GLTF using a converter or export it from GRASP in GLTF format.
  2. 3D Viewer apps: Some 3D viewer applications, such as MeshLab or MeshViewer, may be able to open GL files for basic viewing and manipulation. However, they may not support all the features and functionalities of GRASP.

GRASP Animation (.GL) File Format

The GL file extension is associated with the GRASP (GRaphics Animation System for Physics) software, a molecular modeling and visualization tool developed by John Bridges. GL files contain 3D animations of molecular structures that can be visualized using GRASP.

These files typically consist of a sequence of frames, each representing a particular conformation of the molecule at a specific time point. They allow researchers to animate and explore the dynamic behavior of molecules, such as conformational changes and molecular interactions. GL files are also widely used for educational purposes, enabling students to visualize and comprehend complex molecular structures and their movement.

Other Extensions