How to use proxy bitmap texture?

[tue_nguyen]

Hi Everybody,
I'm try use "Bitmap texture proxy". It's really save memory and make rendering is faster. But i have a problem. When i use it, the "bitmap" will be darker. It's smilar wrong gamma. How to fix it?
Thanks !

[kosso_olli]

Don't use it with V-Ray. It will make the rendering slower and causes lots of troubles. Bad idea.

[tue_nguyen]

Don't use it with V-Ray. It will make the rendering slower and causes lots of troubles. Bad idea.

Thank you but i don't think so because i'm test with other it's really save memory and make rendering is faster.
Some scene have problem.
It's good with GPU render too when you have a small memory size.