TensorXf object copy and in-placing operation

[Jackson334-prog]

Summary

Hi, I am working on how to apply some value for each channel of tensor , so I need to use the function per-RGB channel , seems like there is no in-placing operator in TensorXf object , so I can not simply assign just like img[:,:,0] = var such kind of thing , also I check for the dr.copy dr.clone none of these function. So I wonder how can I do some operating on different RGB channel and copy per channel into original TensorXf object.

[njroussel]

Hi @ljijjiang1234

Assignment to tensor objects is done by calling dr.scatter(tensor.array, new_value, indices). The tensor.array member is the underlying flat buffer that is used to store the buffer. It's essentially the result of dr.ravel().

This interface should improve soon-ish.

[Jackson334-prog]

Holy thanks for your patient reply and your rigorous work , I have been solved for this problem by using dr.scatter().