Computebuffer getdata async
Perhaps internally it has a promise it needs to wait for, or a callback. Likewise, we can use these two methods to show async function results on widgets. but asynchronousFunction() performs some asynchronous call in it (for example a fetch() call), and can’t directly return the result value. ComputeBuffer triangleBuffer new ComputeBuffer(maxTriangleCount, sizeof (float) 3 3, ComputeBufferType.Append) // Send data to the compute shader. This is the asynchronous function I used to explain how the Future Builder widget works. Without the async method I use the ComputeBuffer.Cop圜ount method to get the number of triangles in my buffer and then get the data with triangleBuffer.GetData : // Create my triangle buffer. Flutter provides a better answer to this question. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more.
COMPUTEBUFFER GETDATA ASYNC FREE
The below codes show a builder function and how we can use the FutureBuilder widget to show the data returns by the above code.īuilder: (BuildContext context, AsyncSnapshot userNameSnapshot) ')īasically userNameSnapshot.hasData returns true when AsyncSnapshot is with data and otherwise, it returns false, userNameSnapshot.hasErrorreturns true when AsyncSnapshot is with error(s) or else it returns false. When you want to show some async function result on a widget you will face some troubles because a widget’s build sync method will not wait while fetching data. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Unity2018 joined the new interface, you can do asynchronous RenderTexture-> Texture2D and asynchronous ComputeBuffer.GetData. In this example, I will be using the Star Wars API to get information about some characters. String userName = await DatabaseService().getUserName(userID) Sometimes you want to get some data from several different API endpoints. This function simply returns a String object. This is the asynchronous function I used to explain how the Future Builder widget works. a 4×4 matrix may be much more than I need to upload to the GPU (for example if I just need to translate the object). I have already suggested to the GPUInstancer authors if they can put more thoughts about the data optimizations. Flutter provides a better answer to this question. However, because how slow ComputeBuffer SetData is, uploading 1 million matrices would make this solution unpractical. When you want to show some async function result on a widget you will face some troubles because a widget’s build sync method will not wait while fetching data. This article is about a very useful widget of Flutter, the Future builder widget.