FAQ

Is the AI feature free?

AI mode is currently in testing and is free to use during the test period.

Does AI mode need an internet connection?

Yes. AI generation runs in the cloud, so stay connected and signed in to your D5 account while using it.

What should I do if AI generation is queued or fails?

1. During peak hours, generation tasks may be queued. Wait a moment rather than submitting again.
2. If generation fails, retry directly in the current interface. If it keeps failing, or the service is completely unavailable, contact online support.

Installation fails, or an error appears on launch

Try the following, in order:

1. Close D5 Render. Lite and D5 Render cannot run at the same time.
2. Confirm your computer meets the system requirements: Windows 10 (20H2 or later), an NVIDIA RTX 20-series or newer GPU, and GPU driver 528.33 or later.
3. Update D5 Lite and try again.
4. If you have a legacy LiveSync plugin installed for SketchUp or Rhino, uninstall it, then reinstall Lite. In Revit, Lite and legacy LiveSync can be installed together and used separately; you do not need to uninstall LiveSync.

If Lite still fails to launch, contact D5 Support with your software version and any error message.

The interface feels sluggish during use

Try turning off Windows "Hardware-accelerated GPU scheduling": open Windows Settings → System → Display → Graphics → Advanced graphics settings, turn off "Hardware-accelerated GPU scheduling," then restart your computer for the change to take effect. Reopen your modeling software and D5 Lite afterward.

SketchUp closes unexpectedly when applying a material

Some newer SketchUp versions may close unexpectedly when applying a material. In SketchUp settings, switch the graphics engine to "Classic" and try again.

Why is my emissive material completely black?

Emissive materials are not affected by ambient light; when emission intensity is 0, the material appears black. Set the emission intensity above 0. For a non-emissive surface, use the General template.

Which interface languages does D5 Lite support?

D5 Lite uses Simplified Chinese or English based on your system or modeling software language. It displays Simplified Chinese when that language is detected and English otherwise.

Why didn't the exposure change after syncing to D5 Render?

Model sync doesn't send a scene's environment or effects, such as HDRI lighting or exposure. Use scene sync to send those settings. Here's how in SketchUp:

1. Save the environment and effects in the Lite Scene List. For a new scene, click Add Scene. For an existing scene, select it before adjusting the settings, then click its Update Scene icon.
2. Save the SketchUp model file, then close Lite.
3. Connect to D5 Render, then click Send Scenes on the D5 toolbar in SketchUp. Select the corresponding scene in D5 Render and check the result.

Use a D5 Render version that supports scene environment and effects. Versions with the older scene interface receive the camera only. A .d5a export does not include the recorded environment or effects. For Rhino and Revit, see Sync to D5 Render. In Revit, this works with perspective 3D views from the Revit project.

D5 Lite crashes on launch with multiple GPUs

If your computer has both an integrated GPU and a dedicated NVIDIA GPU, first set a graphics preference for your modeling software:

1. Open Windows Settings → System → Display → Graphics and add or select SketchUp, Rhino, or Revit. Under Options, select High performance and check that it lists the dedicated NVIDIA GPU. Save the setting.
2. Restart your modeling software and launch D5 Lite again. If Windows doesn't offer that choice, check NVIDIA Control Panel → Manage 3D settings → Program Settings. If Preferred graphics processor is available for your modeling software, select High-performance NVIDIA processor, apply the setting, and try again.
3. If Lite still crashes, contact D5 Support. Include your modeling software version, D5 Lite version, GPU model and driver version, and any launch error.

Changes to my model or camera don't appear in Lite

• Model changes: In your modeling software, check that Lite is running and Live Sync is on. If you keep it off, click Sync Once to send the latest changes.
• Camera changes: Turn on Sync Viewport. To match the view once while it is off, focus the Lite viewport and press 0.

See Real-time rendering & sync for the controls and exceptions in your modeling software.