sensor Sprites showing outside the 3D model using Autodesk-Forge - autodesk-forge

We are working on the 3D house model with the sensor placement which follows this documentation. Also, I followed that sample code git repository for creating models and placing sprites.
When I rotate that sample 3D model the sensor doesn't fall off the 3D model and it sticks to its place no matter however I rotate the model. But when I rotate my 3D model one sensor is shown outside the model even though it is placed inside.
I have perfectly placed the position of the sensor position:{x:,y:,z:} and bind it to the room.
What can be the problem?
Below is the image:

Maybe try turning on 'sensor occlusion' through the API ?
See https://hyperion.autodesk.io for an example

Related

Models created with `SceneBuilder` in `AggregatedView` disappear/reappear on rotate/zoom when loaded in combination with larger models

Custom objects disappear on every orbit zoom or rotation for about one second, then reappear again when added to a aggregated view in combination with a large model. While the objects are hidden, I can see that there is some reloading/rerendering of the other unrelated model going on.
Overlays (meshes rendered directly into threejs) obviously don't show this behavior.
I'm using viewer version 7.85 and the sample code from here: https://aps.autodesk.com/blog/custom-models-forge-viewer
modelBuilder.addFragment(sphereGeometry, sphereMaterial, sphereTransform);
Is there any way I can prioritize rendering of my custom model or disconnect the rendering from other loaded models?

How to make sure the building is loaded in the right orientation?

I use the grid on the scene. The Building A (first image) setup is to be expected. But when I uploaded Building B, the orientation didn't match. Do I have to set it up in Revit ? or can I do it programatically.
Every model you load into the viewer is coming with its own metadata such as:
what is the "up" direction of the model
what is the offset of the model from the origin
what units is the model defined in
By default the viewer honors all these settings which means that, for example, if you load a Revit model that is defined in feet (and uses the Z-axis as the "up" direction), and then an Inventor model that is defined in meters (and uses the Y-axis as the "up" direction), the two models will have different scale and orientation.
To work around this issue, when loading (aggregating) multiple models in Forge Viewer, you can override any unit scaling, offset, or general 4x4 transformation that is applied to each model. For more details, look at https://forge.autodesk.com/blog/multi-model-refresher.

Forge viewer Display anomaly

I have a situation where two construction models are loaded in the viewer.
The stair model is moved (whith placement transform) in the building model.
The stair model is now obscured by the building model also behind glass elements
see this gif
Depending on the camera position the stair is visible again.
Viewer is 7.38.1
Typically, when a model is loaded, the opaque objects are rendered first and the transparent objects are rendered last. If you are loading the first model which contains the transparent objects and then the stair model, the transparent objects might be rendering before the stair model. This might be causing this issue.
I would suggest trying the following: load the stair model first and then the model with the transparent objects. If the above statement is correct, this might fix the issue.
In any case, It would be useful to get the repro steps for this and maybe the model assets.
Last, are you using AggregatedView or are you loading the models using Viewer3D#loadModel?
We logged the issue as LMV-5962

Autodesk Forge Viewer: how to set object occlusion

I'm playing around with the Autodesk forge viewer and adding custom elements, like it is done in the Autodesk's scene builder example.
I am looking for a possibility to set the "visibility" of one of the new objects - e.g. when moving around the camera, the green cube should remain on it's 3D-position but should not be occluded by any other object (like it is somehow in blue with outline when it is selected). Or maybe even better: if it is covered by another object, it should shine through (with configurable opacity).
Unfortunately after discussing with Engineering it's not yet possible - will continue the conversation to see if we could come up with a workaround for the upcoming releases ...
Like I suggested in the comments try append your geometry to Viewer3DImpl.sceneAfter for the time being (which will be publicly documented and exposed as Viewer3D.sceneAfter in a couple of weeks) or an overlay. Then setting depthTest to false should do what you want...
The choice of sceneAfter or an overlay depends on how you want the objects to be drawn during progressive rendering. sceneAfter is only drawn once at the end of everything else. Overlays are redrawn for each progressive frame...

Cesium czml change orientation of 3d model (gltf/glb) along with position in time

I have implemented a 3d model (cesium air) aircraft to move along a path. Its position is being changed based on time and the detailed data is available in the czml file under position attribute. However, I am not able to change the orientation of the aircraft along with path. The aircraft flies through the path but its heading , pitch and roll are constant. It does not pitch up with increase in height etc. How to implement the attitude changes using orientation attribute in the czml file or any other solution for the said problem?
You need to assign a VelocityOrientationProperty to each entity (aircraft) that needs to orient itself along the path. Unfortunately there's no CZML indicator for this, but you can assign it in client-side code after loading the CZML.
The Sandcastle Interpolation Demo shows VelocityOrientationProperty applied to a moving aircraft. Be sure to select a non-linear interpolation so it looks cool.