Arcore point cloud unity

Sketchfab Community Member Leon Denise created his own solution to make point clouds, the output of many 3D scanning apps, more visually attractive. While we have in the meantime released a similar feature for point cloudshis approach to using and transforming such data is very interesting and can be applied in many different and new ways.

I draw comics, make games, code shaders, hug trees and talk to cows. You can find my work on GitHubGiphy and of course here on Sketchfab! Simon Splash by Leon Denise on Sketchfab. The Unity3D project can be downloaded at github. The project is a point cloud tool used for generative art.

It is a real-time software that generates triangle particles from a point cloud and displace them in a vector field with specific rules for velocity behavior.

The tool also exports the generated particles into a standard 3d mesh and bakes the vertex colors into a map with generated texture coordinates. The motivation came from the fact that point cloud viewers are not very advanced, since point clouds are not the real matter of 3d worlds such as video games.

Feature Points - Low Resolution 3D Scanner Tutorial - ARCore Part 2

When you zoom in, points stay as dots, it creates to me a frustration that needs to be satisfied. For the sake of comprehension and because the advanced version is part of a commercial project. After you have generated a point cloud in your favourite software, export it as PLY format: binary encoding with position, normal and color. If you improve the importer script, and like to share, do not hesitate to send a pull request on the git repository.

Download, install Unity3D and grab the project here. You will find the scripts and shaders used to generate triangle mesh from a point cloud.

The main script is PointCloudGenerator. Start the play button, select the PointCloud game object in the hierarchy window, so you can adjust parameters in the inspector window. PointCloudGenerator will load a file in the StreamingAssets folder and automatically adds the. You can adjust the Maximum Vertices count to get more details.

The texture used for the sprite must have clamp wrap mode.

arcore point cloud unity

Since we use triangles instead of quads for performance, the UV mapping is sized to cover the triangle. You can check the Shader code used to generate triangles. So the script create a mesh with no triangles, only points. Then a geometry shader is generating triangle from point. With the PointCloud shader, you will get this render: triangles with color and direction. Here is a scary screenshot with hieroglyph characters known as shader language code. That part shows a function that create a triangle from a point: a geometry shader.

The challenge is to display triangles that will face a certain direction. Manipulating vertex in a shader is about parallelism and knowing if a point in space belong to a triangle requires storing data into vertices.

This simple version is about two vectors: a smooth random direction and moving away from a point in space. This is where you can adjust and customise the displacement behaviour. If you inspect the baked mesh, you will find the generated texture coordinates. To export the model, you have to press the export button.ARCore by Google is still in preview and only runs on a select few phones including the Google Pixel 2. Instead of following these steps, you can download the final model used in this article for free from Google Poly.

Previously, the AR efforts of Google were focused on the Tango platform. It included additional hardware depth sensors for accurate recognition of the environment.

It only requires a color camera. The official launch is scheduled for Winterwhere Google promises it will work on more than million existing and upcoming devices.

arcore point cloud unity

The Tango brand has been retired. It is open source and available on GitHubwhere you can clone the code. Download the latest apk package of the ARCore services and install these on your compatible phone using the command-line adb tool.

Next, create a new Unity 3D project. Save the project and the main scene. Unfortunately, from now on the Google Getting Started guide only refers to testing the included sample. In this article, I go farther and explain how to set up a simple scene. The aim is to detect and visualize planes that ARCore finds in the environment in real-time. Moreover, the user can place objects on the planes by tapping on the screen.

We want to only use the minimal setup necessary to concentrate on the basics of ARCore. It contains two important components:. It uses the lightning estimation performed by ARCore and applies the color scale to the global shader.

Get Point Cloud

The default directional light can stay in the scene. First, we need to create a prefab of the object to place in the real world. Import your model by dragging and dropping it to the assets and then to the scene.

In the original model, the scale and orientation might be different to what you need in the scene. In case that happens, our 3D model prefab should move with the plane. Finally, we need to create the Prefab out of our setup.Search Unity. Log in Create a Unity ID. Unity Forum. Forums Quick Links. Asset Store Spring Sale starts soon! Joined: Oct 10, Posts: 8.

I instantiated some cubes on the point clouds position. However, subsequent frames, the detected point cloud overlays over these instantiated cubes and more cubes will keep stacking towards the camera. Shouldn't the point cloud detection ignore the instantiated 3d objects that are not part of the AR camera image? Is there some settings to ignore these instantiated 3d objects for the detected points cloud? Or I have to somehow overwrite the Frame. Any ideas, thanks!

S-e-n-s-eJan 30, Joined: Aug 1, Posts: Feature points are not detected on virtual objects. The hardware has absolutely no knowledge of the virtual objects in a Unity scene. You are right, it does not detect the virtual objects. Probably have to clean up some of the points with less accuracy on the depth as it scans. S-e-n-s-eJan 31, You must log in or sign up to reply here.

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Sorry i am new at ARCore and augmented reality. I have a general question about PointCloud class in Unity. My question is: Would it be possible to import a point cloud of a room which is scanned by kinect or etc, to Unity to use as PointCloud in an AR application. As far as i understand if it is possible to register the points relative to device coordinate system and use these points instead of the points generated by the phone, the accuracy of SLAM of ARCore can be increased.

You can do this by using Point Cloud Free Viewer from the asset store, but only up to million points. Learn more. Asked 1 year, 7 months ago. Active 1 year, 4 months ago. Viewed times.

arcore point cloud unity

I would be happy if anyone can help. Ali Kanat Ali Kanat 1, 2 2 gold badges 9 9 silver badges 19 19 bronze badges. Active Oldest Votes. Thanks i am using Point Cloud Free Viewer with slight modification but what i am asking here is a bit different. That sounds interesting. How would you place the point cloud correctly in the real world? And then would the device ping off one of these point cloud points and know where every other scanned feature is from the point cloud data? Well in my case i use a Transformation matrix to place the point cloud correctly from scanner to Unity coordination system.

So if you know where exactly those points in real space using a scanner and match your extracted feature point with it you get a lot more info than ARCore offers. That seems really useful. Have you figured out how to do it since you've asked the question? I figured out the way to transform points from Kinect or any other scanning environment to Unity coordinate system but i am not sure how to use those points after that.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Already on GitHub? Sign in to your account. Hai iam using ARCore sdk for unity.

Hi, I imagine you are basing your project off HelloAR example. In that case, to disable PointCloud rendering remove the "Point Cloud" object from your scene. Any possibilities to hide feature points in code? If you are using HelloAR's Point Cloud game object, disabling it should disable the point cloud visualization.

I had solved this problem. I cannot find any available method to hide pointCloud or get all planes GameObject. I store all planes GameObject in a list once they being searched. Than I can call the method on planes script Component to control the pointCloud. Skip to content. Dismiss Join GitHub today GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.

Sign up. New issue. Jump to bottom. How to hide pointcloud and plane in unity ar-core? Copy link Quote reply.

ARCore: How to have point cloud ignore instantiated virtual objects

This comment has been minimized. Sign in to view. In controller. Add planeObject ; planeObject. Thank you so much for your solution. Iam going to put on this to my code and check. Looks like this issue is resolved, please re-open if not.Discussion in ' Assets and Asset Store ' started by lvonasekJan 30, Search Unity.

Log in Create a Unity ID. Unity Forum. Forums Quick Links. Asset Store Spring Sale starts soon! Joined: Jan 16, Posts: Hi everyone! I'm currently working on version 1.

arcore point cloud unity

I'm very curious to see what you can create with it, feel free to share your results here, if you find any problems or have any specific requests, please let me know! AndroYD and Circool like this. Joined: Jan 31, Posts: 2.

It looks great! Does your asset store contains the code which is converting feature points into depth map, before it's passed into Tango or it's all wrapped and hidden in the liboc. I would like to buy it and use it but I need to have a full control over the code in case I will have to make any modifications.

In the package preview I only see ReconstructionManager. The conversion from feature points into depthmaps is done inside liboc. If you have an interest then contact me on tridosm gmail. Last edited: Mar 11, Joined: Nov 13, Posts: Details Returns true if new point cloud data became available in the current frame, otherwise false.

PointCount static int PointCount Gets the count of point cloud points in the frame. Each point will be a Vector4 in the form where the first three dimensions describe the position of the point in the world and the last represents a confidence estimation in the range [0, 1.

Please copy points manually instead. The point returned will be a Vector4 in the form where the first three dimensions describe the position of the point in the world and the last represents a confidence estimation in the range [0, 1.

Please use Frame. GetPointAsStruct instead. If the point is inaccessible due to session state or an out-of-range index a point will be returns with the Id field set to PointCloudPoint.

Details Parameters index The index of the point cloud point to get. Returns The point from the point cloud at index. Send feedback Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.

For details, see the Google Developers Site Policies. Discover Develop Distribute Reference Community. Overview Android. Android NDK. Related Pages. ARCore Extensions for Unity. Google ARCore Plugin. Google ARCore. Augmented Face. Augmented Image.


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