Piranesi 6.0.3 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This Mac app was originally created by Informatix Inc. The most popular version among the program users is 6.0. This application's bundle is identified as uk.co.informatix.piranesi6. The software lies within Design & Photo Tools, more precisely Viewers & Editors.
From the developer:
Piranesi is Informatix Inc. award-winning 3D painting tool that will transform your models to win more business. Turn your conceptual 3D models into wonderfully atmospheric, stylised and persuasive visualisations, with a whole host of effects to allow you to focus the eye to the key elements of your design.
You may want to check out more software for Mac, such as Piranesi Pro, which might be related to Piranesi.
Viewers & Editors
3D Design