Summary

GibbsCAM can be used remotely through Microsoft Remote Desktop Protocol (RDP). On modern versions of Windows, RDP supports GPU acceleration, allowing GibbsCAM to utilize the workstation's graphics hardware for improved display performance.

This article explains the system requirements, recommended configuration, and best practices for using GibbsCAM over Remote Desktop.

TABLE OF CONTENTS

Overview

Many users access GibbsCAM remotely from home, satellite offices, or manufacturing facilities using Microsoft Remote Desktop (RDP).

Beginning with newer versions of Windows, Remote Desktop can redirect the workstation's GPU into the remote session, allowing GibbsCAM to use hardware graphics acceleration instead of software rendering.

When properly configured, users should experience graphics performance similar to working directly at the workstation.

System Requirements

For the best experience:

  • Windows 10 Version 2004 or newer

  • Windows 11

  • Windows Server 2019 (with limitations)

  • Windows Server 2022 (recommended)

  • A supported graphics adapter

  • Current graphics driver from NVIDIA, AMD, or Intel

  • Stable network connection

Licensing Considerations

The licensing behavior differs depending on the type of license being used.

Network License (NLO)

When using an NLO license over Remote Desktop:

  • Multiple GibbsCAM sessions can be launched within the same Remote Desktop session.

  • Each running instance of GibbsCAM checks out a separate network license.

  • Ensure sufficient licenses are available before opening multiple sessions.

Example

If a user launches three copies of GibbsCAM while connected through RDP, three network licenses will be checked out until those sessions are closed.


Standalone Hardware Key License

When using a Standalone Hardware Key license through Remote Desktop:

  • Only one instance of GibbsCAM may be run remotely at a time.

  • Attempting to launch additional instances while connected through Remote Desktop is not supported.

This limitation applies only when operating GibbsCAM remotely. Running GibbsCAM locally at the workstation is unaffected.

Enable GPU Acceleration for Remote Desktop

Microsoft provides a Group Policy setting that allows Remote Desktop sessions to use the workstation's physical GPU.

Configure Group Policy

On the computer running GibbsCAM:

  1. Open Local Group Policy Editor (gpedit.msc).

  2. Navigate to:

Computer Configuration

  └ Administrative Templates

      └ Windows Components

          └ Remote Desktop Services

              └ Remote Desktop Session Host

                  └ Remote Session Environment


  1. Enable the policy:

Use the hardware default graphics adapter for all Remote Desktop Services sessions

  1. Apply the policy.

  2. Restart the computer or run:

gpupdate /force

Verify GPU Acceleration

After connecting through Remote Desktop:

  1. Start GibbsCAM.

  2. Rotate or pan a solid model.

  3. Confirm that graphics performance is smooth.

  4. Open Task Manager and verify GPU utilization increases while manipulating the model.

If GPU usage remains at zero, the session may still be using software rendering.

Performance Recommendations

For the best Remote Desktop experience:

  • Use a wired Ethernet connection whenever possible.

  • Install the latest graphics driver.

  • Keep Windows fully updated.

  • Use a dedicated workstation with a professional or modern consumer GPU.

  • Avoid running multiple GPU-intensive applications simultaneously.

Limitations

Depending on your Windows version and network configuration:

  • Graphics performance may be reduced over slow or high-latency connections.

  • Multi-monitor performance depends on available bandwidth.

  • Some visualization features may perform differently than on a local console.

  • Older versions of Windows may not support GPU acceleration over RDP.

Troubleshooting

Problem: Graphics Performance Is Slow or Graphical Problems Occur

Possible Causes

  • GPU acceleration is not enabled.

  • Outdated graphics driver.

  • Slow network connection.

  • Older Windows version.

Resolution

Verify the Group Policy setting is enabled, update the graphics driver, and ensure the workstation meets the recommended system requirements.


Problem: GibbsCAM Uses Software Rendering

Cause

Remote Desktop is using the Microsoft Basic Render Driver instead of the physical GPU.

Resolution

Enable the Use the hardware default graphics adapter for all Remote Desktop Services sessions Group Policy and restart the computer.


Problem: Screen Updates Are Slow

Possible Causes

  • Limited network bandwidth.

  • High network latency.

  • Remote session configured with excessive display resolution or color depth.

Resolution

Reduce display resolution if necessary and verify network performance.


Problem: GPU Is Not Visible in Task Manager During an RDP Session

Cause

The Remote Desktop session is not using GPU acceleration.

Resolution

Confirm that the required Group Policy is enabled and that the graphics driver supports hardware acceleration over RDP.


Problem: Unable to Open a Second GibbsCAM Window While Using a Hardware Key

Cause

Standalone Hardware Key licenses are limited to a single GibbsCAM instance during a Remote Desktop session.

Resolution

Close the existing GibbsCAM session before opening another instance, or consider using a Network License (NLO) if multiple concurrent sessions are required.

Best Practices

  • Use Windows 11 or Windows Server 2022 for the best Remote Desktop experience.

  • Enable GPU acceleration through Group Policy.

  • Keep graphics drivers current.

  • Maintain a reliable, high-speed network connection.

  • Test graphics performance after Windows feature updates.

Expected Result

Users can operate GibbsCAM remotely through Microsoft Remote Desktop with hardware-accelerated graphics and responsive model display, provided the workstation and Windows configuration support GPU redirection.

Related Articles

Keywords

Remote Desktop, RDP, Windows RDP, GPU Acceleration, Remote Session, Hardware Graphics, Remote Access, Graphics Performance, Windows 11, Windows Server, GibbsCAM, Microsoft Remote Desktop