I am rendering a point cloud in WPF using PointsVisual3D and Point3DCollection. This all works well, and I now want to put a set of 3 principal plane-oriented 3D ellipses into the view as a set of reference circles. I am currently using 3 EllipsoidVisual3D objects with two of the radii set to 1 and the third set to zero to accomplish this, but I have a couple of problems

• I can't seem to change the fill color. I have tried using the material and/or Fill properties for this, but nothing seems to affect the default (black) color
• I would really like to have these objects be rings instead of disks, so they obscure as few data points as possible, but I can't figure out how to do this, either :-(

Any thoughts or pointers would be appreciated.

TIA,

Frank

I am developing an application using Helix toolkit in which users are given control to click on the individual 3d models that have loaded and manipulate them independantly. 3d model loader in my application can load ModelVisual3D type models. the tutorials so far I could find were on performing hit testing on Model3D type models which didn't work with ModelVisual3D type whatsoever. Can anybody help ?

I am doing a project using helix 3d toolkit in which a background image is overlayed with helix3d viewport that displays 3d models on top.So far everything works fine except 3d models appear unrealistic on the interior image since they dont cast any shadoes to the light. Does anybody know how to add shadows for each 3d model in viewport ?

Hi,

I would like to add a second view to my program so that the scene can be viewed from 2 different angles.

Can anybody give me a hint how to achieve this? Preferable without doubling the scene :D

I have added 2 tubes using the same list of points, but tube A is rotated approx 90 degrees around its axis relative to tube B. I am using MeshBuilder.AddTube(points, diameter, 5, false);

Since the tube is square instead of round, this is noticeable. How can I control the rotation of the tube geometry?

Thanks for any feedback!

I would like to only change material in certain parts of my imported object. I want to simulate brain activity. I am using an imported .obj and I would like to draw/change texture of the object only on the right side. Is that possible within Helixtoolkit?

I want to plot textual data into 3D plot instead of spheres or other shapes. Texts like 1,2,3 or A,B,C... or P1, P2... etc...

Hello,

I started billboard demo and i have problem. Text billboards are moving around the screen when I zooming or rotating camera. Problem occurs only when camera is in inertia mode after zooming wheel or releasing right mouse button.

I attached below recorded behaviour posted on YouTube.

I noticed that when you add billboards in xaml file everything is working fine, but i have to inserting text billboards dynamically in program.

Best regards,

Mateusz

Hello,

Thanks for great library. During several past months I was working with your library and I was able to upload different object files and corresponding textures using objreader class.

However, when I try to load any .obj from Stanford Scene Database Helix cannot show the textures.

I tried different things but yet no success. Could you please help me?

Thanks

Hi all!, i'm using HelixToolkit to show same result, but recibe a the result from other program. i need to show the result in runtime, but when i open it only show the last result. someone know how i can do to update modelVisual3d in runtime? thanks