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Lagging or poor visualization when viewing 3D models - PIX4Dcloud

When viewing 3D models in PIX4Dcloud, users may experience lagging, slow rendering, or poor interaction performance when rotating or panning the model. This article describes a common cause related to NVIDIA Optimus technology and explains how to verify whether a device is affected and how to resolve the issue.

Licenses: This article is valid for PIX4Dcloud Starter and PIX4Dcloud Pro licenses.

Roles: Owners, Managers, Editors, and Readers can visualize outputs in a dataset in PIX4Dcloud.

Issue Description / Cause

Poor 3D visualization performance can occur on devices equipped with an NVIDIA graphics card using Optimus technology. In this configuration, the web browser may run on the integrated Intel GPU instead of the discrete NVIDIA GPU, resulting in significantly reduced WebGL performance when interacting with 3D models in PIX4Dcloud.

Bad performance can be experienced while viewing models on the cloud if the device runs with a NVIDIA graphic card and the Optimus technology. It can occur when rotating or panning in a model.

Possible Solutions / Checks

Check Whether the Device Is Affected

  1. Verify that the web browser supports WebGL diagnostics:

    • Google Chrome: Supported in recent versions (Chrome 36 or later).

    • Firefox: Type about:config in the address bar and set web.enable-privileged-extensions to true.

    • Opera: Same behavior as Chrome.

    • Internet Explorer: Supported in newer versions (Internet Explorer 11.0.9600 or later).

  2. Open the WebGL features detector page.

  3. Scroll to the bottom of the page and locate the Unmasked Renderer field.

  4. Interpret the result:

    • Intel: The device is affected. The browser is using the integrated Intel GPU, which can result in poor performance.

    • NVIDIA: The device is not affected. The browser is using the discrete NVIDIA GPU.

Configure NVIDIA GPU Settings

To force the browser to use the high-performance NVIDIA GPU:

  1. Ensure the latest NVIDIA GPU driver is installed (version 337.19 or newer).
    For more information, see: How to update the NVIDIA graphic card.

  2. Open the NVIDIA Control Panel (see: How to reach the NVIDIA admin panel).

  3. In the left panel, select 3D Settings > Manage 3D settings.

  4. Open the Program Settings tab.

  5. Under Select a program to customize, choose the web browser used to access PIX4Dcloud.

  6. Under Select the preferred graphics processor for this program, choose High-performance NVIDIA processor.

    2018-10-16_14-40-03.png

  7. Apply the changes and restart the web browser.