mitsuba3 removed reparameterizations

I wrote a program for retargeting shapes using a reparameterization plugin in Mitsuba3, but the program did not work. I only knew that a line using the reparameterization plugin had stopped the program, but I did not understand what the problem was because the program was written along with the official tutorial. 

At first, I had not wondered if the official tutorial was old. But a day later, I wondered again it was real. Later, I found a page. The official tutorial was old.  

https://github.com/mitsuba-renderer/mitsuba3/pull/997

According to this, "Reparameterizations were completely removed from the codebase." OK, goodbye. 

Now, I have to reconsider what I use for retargeting shapes. 

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The problem was solved with _projective plugins. https://geblog3.blogspot.com/2024/02/projective-plugings-are-available-in.html