Qual técnica os renascentistas desenvolveram

They have developed:
The Self Portrait
The Perspective
The Realism 
The 3-D effect
I hope this helped

Han desarrollado:
 El autorretrato
 La perspectiva
 El realismo El efecto 3-D
Espero que esto haya ayudado

The answer is cave paintings

Photography has changed its subject matter quite a lot over the past few years. in the 1800's, it was considered normal for families to have  post mortem photos of their loved ones, and now that would be completely unacceptable. i think that photographers have always pushed boundaries and have been eager to capture everything, it is just society that changes their boundaries.