The GetData method of the GpuBuffer<T> class is used to retrieve data from the GPU buffer into a specified span. This method is particularly useful when you need to access the data stored in the GPU buffer for processing or analysis on the CPU side.
To use the GetData method, you need to have an instance of GpuBuffer<T> and a Span<T> where the data will be copied. The type T must be a blittable value type, which means it can be directly copied to and from unmanaged memory without any transformation.
Here is how you can use the GetData method:
Span<T> you provide has enough space to hold the data from the buffer.GetData method with the span as the parameter.// Assume we have a GpuBuffer of type float GpuBuffer<float> gpuBuffer = new GpuBuffer<float>(); // Create a span to hold the data Span<float> dataSpan = new float[gpuBuffer.Size]; // Retrieve data from the GPU buffer gpuBuffer.GetData(dataSpan); // Now dataSpan contains the data from the GPU buffer