Put square Photo inside circle photo is possible?

[Magic Frame]

Hi all,

It is possible to do something like what I show in the example photo?

thanks

[BeShifty]

There are 2 things happening in your example: A texture mask, and a second texture layered on top.

Masking a texture with another texture is possible if you write a custom shader for it. Basically you read the color of the main texture normally, then multiply its alpha by the alpha (or greyscale value) of the second texture.