There is a port of the Amaze camera for the evo 3D available here:
[MOD] Camera from HTC Amaze 4G, v0.10 - xda-developers
It is far better than the stock or modded stock cameras available for the evo 3D. For a rudown of the advantages and a head to head comparison of the three (stock, modded stock and the Amaze port) please see my posts here:
xda-developers - View Single Post - [MOD] Camera from HTC Amaze 4G, v0.10
and here:
xda-developers - View Single Post - [MOD] Camera from HTC Amaze 4G, v0.10
If this helps, please hit thanks, after all it dosn't cost anything!