# \#world-effects **URL:** https://forum.8thwall.com/tag/world-effects/60.md [Latest](https://forum.8thwall.com/latest.md) · [Categories](https://forum.8thwall.com/categories.md) · [Tags](https://forum.8thwall.com/tags.md) --- ## [Align vehicle in local space](https://forum.8thwall.com/t/align-vehicle-in-local-space/8545)
**Author:** [@Fredrik\_Brockert1](https://forum.8thwall.com/u/Fredrik_Brockert1)\ **Replies:** 0\ **Last updated:** [November 13, 2025, 1:20pm UTC](https://forum.8thwall.com/t/align-vehicle-in-local-space/8545 "2025-11-13T13:20:14Z")
I’m building a car game in AR using 8th Wall Studio. I’ve adapted code from the Vehicle Controller example.. Vehicle Controller | 8th Wall | 8th Wall In my game, I use a Tap to Place UI that lets the player position ass… --- ## [How to implement “Tap to place” (grid+ plane detect) in PlayCanvas](https://forum.8thwall.com/t/how-to-implement-tap-to-place-grid-plane-detect-in-playcanvas/8292)
**Author:** [@kruub](https://forum.8thwall.com/u/kruub)\ **Replies:** 0\ **Last updated:** [September 17, 2025, 9:20am UTC](https://forum.8thwall.com/t/how-to-implement-tap-to-place-grid-plane-detect-in-playcanvas/8292 "2025-09-17T09:20:08Z")
Hi everyone — I’m building an AR experience with PlayCanvas + 8th Wall. The default 8th Wall PlayCanvas template i cloned spawns my 3D content immediately at camera start, but I’m trying to create a “Tap to place” flow :… --- ## [Best particle settings for fog](https://forum.8thwall.com/t/best-particle-settings-for-fog/6264)
**Author:** [@Matthew\_Knowles](https://forum.8thwall.com/u/Matthew_Knowles)\ **Replies:** 2\ **Last updated:** [May 1, 2025, 8:55pm UTC](https://forum.8thwall.com/t/best-particle-settings-for-fog/6264 "2025-05-01T20:55:00Z")
Hi Everyone, I am creating a creepy Halloween themed scavenger hunt. I started playing around with particles to create fog but not having much success. Does anyone have a good recommendation for settings to make a creep… --- ## [Is it possible to disable world tracking for a single Aframe entity?](https://forum.8thwall.com/t/is-it-possible-to-disable-world-tracking-for-a-single-aframe-entity/6199)
**Author:** [@Marketa\_Machova1](https://forum.8thwall.com/u/Marketa_Machova1)\ **Replies:** 0\ **Last updated:** [April 25, 2025, 12:59pm UTC](https://forum.8thwall.com/t/is-it-possible-to-disable-world-tracking-for-a-single-aframe-entity/6199 "2025-04-25T12:59:54Z")
Hi everyone, I notice significant jittering when using a 360 image inside a world-tracked effect. For this project, I am using a combination of world tracking and image tracking to enter a portal fixed to an image targe… --- ## [Stabilize AR content with Image tracking + SLAM](https://forum.8thwall.com/t/stabilize-ar-content-with-image-tracking-slam/5629)
**Author:** [@Marketa\_Machova1](https://forum.8thwall.com/u/Marketa_Machova1)\ **Replies:** 2\ **Last updated:** [March 21, 2025, 1:05pm UTC](https://forum.8thwall.com/t/stabilize-ar-content-with-image-tracking-slam/5629 "2025-03-21T13:05:33Z")
Hi everyone, I am tackling a tracking stability problem with the following use case: user scans a QR code user scans a fixed image target on the ground below a real physical door frame a virtual 3D portal is placed on… --- ## [Best approach for stable placement of model on ground in front of poster: Image target or World Effects?](https://forum.8thwall.com/t/best-approach-for-stable-placement-of-model-on-ground-in-front-of-poster-image-target-or-world-effects/4746)
**Author:** [@Todd\_D](https://forum.8thwall.com/u/Todd_D)\ **Replies:** 1\ **Last updated:** [February 10, 2025, 10:38pm UTC](https://forum.8thwall.com/t/best-approach-for-stable-placement-of-model-on-ground-in-front-of-poster-image-target-or-world-effects/4746 "2025-02-10T22:38:55Z")
Hi! I’m a university student who is brand new to AR, and I’m wondering which approach might be best for developing my site-specific project. I’m trying to place a model of a virtual podium and microphone as stable as p… --- ## [Toggling Between Image Tracking and World Tracking in a Single A-Frame Scene?](https://forum.8thwall.com/t/toggling-between-image-tracking-and-world-tracking-in-a-single-a-frame-scene/4553)
**Author:** [@Vasudev\_Kulkarni](https://forum.8thwall.com/u/Vasudev_Kulkarni)\ **Replies:** 1\ **Last updated:** [January 21, 2025, 7:41pm UTC](https://forum.8thwall.com/t/toggling-between-image-tracking-and-world-tracking-in-a-single-a-frame-scene/4553 "2025-01-21T19:41:13Z")
Thought for a couple of seconds Below is a sample post you can adapt for the 8th Wall forum to summarize your scenario, show what you’ve tried, and ask for help on toggling between image tracking and world tracking in a… --- ## [AR in world effects](https://forum.8thwall.com/t/ar-in-world-effects/3523)
**Author:** [@Akshay\_Shinde](https://forum.8thwall.com/u/Akshay_Shinde)\ **Replies:** 2\ **Last updated:** [November 11, 2024, 5:44am UTC](https://forum.8thwall.com/t/ar-in-world-effects/3523 "2024-11-11T05:44:07Z")
so basically as shown in the above youtube video, its using a-frame world effect template to play an animation blender. I basically want the same, i have a mascot who will basically wave his hand and want t… --- ## [Issue with Hider Material for Portals](https://forum.8thwall.com/t/issue-with-hider-material-for-portals/2773)
**Author:** [@Joy\_Guey](https://forum.8thwall.com/u/Joy_Guey)\ **Replies:** 2\ **Last updated:** [September 20, 2024, 7:01pm UTC](https://forum.8thwall.com/t/issue-with-hider-material-for-portals/2773 "2024-09-20T19:01:09Z")
Hello! I saw @Ian’s portal that was shared on LinkedIn and thought it would be a perfect way to replace an old idea to overlay a video tour of my studio at work on my physical door to show passing folks what’s inside. Ho… --- ## [How to disable surface tracking but still use gyroscope/accelerometer and move around](https://forum.8thwall.com/t/how-to-disable-surface-tracking-but-still-use-gyroscope-accelerometer-and-move-around/2828)
**Author:** [@Jeremy\_Immordino](https://forum.8thwall.com/u/Jeremy_Immordino)\ **Replies:** 5\ **Last updated:** [September 19, 2024, 9:24am UTC](https://forum.8thwall.com/t/how-to-disable-surface-tracking-but-still-use-gyroscope-accelerometer-and-move-around/2828 "2024-09-19T09:24:45Z")
Hi everyone In the cloud editor, is it possible somehow to disable the surface tracking for a world effect but still being able to walk around a scene ? I want to make the scene appears at the given coordinate and only… --- ## [Surface switching in AR](https://forum.8thwall.com/t/surface-switching-in-ar/2051)
**Author:** [@Nicholas\_D\_Agosto](https://forum.8thwall.com/u/Nicholas_D_Agosto)\ **Replies:** 1\ **Last updated:** [July 11, 2024, 11:07pm UTC](https://forum.8thwall.com/t/surface-switching-in-ar/2051 "2024-07-11T23:07:49Z")
Hi all, Experiencing an issue where I am placing a model down in a room with some tables. At first, the floor’s surface is correctly detected, and the model is placed on the floor as desired. After a few movements / cam… --- ## [Playcanvas project using 8th wall](https://forum.8thwall.com/t/playcanvas-project-using-8th-wall/1967)
**Author:** [@user11](https://forum.8thwall.com/u/user11)\ **Replies:** 1\ **Last updated:** [July 10, 2024, 8:54pm UTC](https://forum.8thwall.com/t/playcanvas-project-using-8th-wall/1967 "2024-07-10T20:54:05Z")
I have created a playcanvas project using 8th wall. The sample used is world tracking. I would like to make the 3D model placed here face forward when the camera is moved. --- ## [XR RuntimeError when changing disableWorldTracking in PWA mode](https://forum.8thwall.com/t/xr-runtimeerror-when-changing-disableworldtracking-in-pwa-mode/1870)
**Author:** [@Stride9\_Development](https://forum.8thwall.com/u/Stride9_Development)\ **Replies:** 0\ **Last updated:** [June 27, 2024, 10:02pm UTC](https://forum.8thwall.com/t/xr-runtimeerror-when-changing-disableworldtracking-in-pwa-mode/1870 "2024-06-27T22:02:32Z")
when changing the disableWorldTracking flag from true to false at runtime and while running as a PWA, the app experiences the following RuntimeError: ▼ \[RuntimeError\] XR caught an error; stopping. TypeError: undefine… --- ## [Unlimited Image Targets with disableWorldTracking = false](https://forum.8thwall.com/t/unlimited-image-targets-with-disableworldtracking-false/883)
**Author:** [@Nhan\_Trong](https://forum.8thwall.com/u/Nhan_Trong)\ **Replies:** 4\ **Last updated:** [March 29, 2024, 6:13pm UTC](https://forum.8thwall.com/t/unlimited-image-targets-with-disableworldtracking-false/883 "2024-03-29T18:13:10Z")
Hello, I want to use “Unlimited Image Targets” with “disableWorldTracking = false”, is there any solution? I tried : const imageFound = (e) =\> { this.el.sceneEl.setAttribute('xrweb', 'disableWorldTracking: false… --- ## [Client wants to prevent 3D objects spawning on vertical surfaces but 8th Wall doesn't provide vertical/horizontal surface detection. What workarounds are there?](https://forum.8thwall.com/t/client-wants-to-prevent-3d-objects-spawning-on-vertical-surfaces-but-8th-wall-doesnt-provide-vertical-horizontal-surface-detection-what-workarounds-are-there/487)
**Author:** [@Francis\_Chen](https://forum.8thwall.com/u/Francis_Chen)\ **Replies:** 5\ **Last updated:** [February 29, 2024, 4:41am UTC](https://forum.8thwall.com/t/client-wants-to-prevent-3d-objects-spawning-on-vertical-surfaces-but-8th-wall-doesnt-provide-vertical-horizontal-surface-detection-what-workarounds-are-there/487 "2024-02-29T04:41:45Z")
Hello! Our client wants to prevent 3D objects spawning on vertical surfaces but 8th Wall doesn’t provide vertical/horizontal surface detection. What workarounds are there? Thanks! --- ## [The model does not stand still](https://forum.8thwall.com/t/the-model-does-not-stand-still/498)
**Author:** [@Ilya\_Morozov](https://forum.8thwall.com/u/Ilya_Morozov)\ **Replies:** 1\ **Last updated:** [February 28, 2024, 5:29pm UTC](https://forum.8thwall.com/t/the-model-does-not-stand-still/498 "2024-02-28T17:29:28Z")
Hey, team! I always wanted to understand why my model often does not stand still when I approach it. What is the reason for this and how to counteract it? From my experience, I know that it is not desirable to change …