Bump Maps

[Gadzooks]

When creating bump maps do you use 8 bit 16 bit or 32 bit images.
Gadzooks

[cobra6]

Generally 8 bit actually, the default depth. I do not know if there is a specific advantage when using 16 bit for instance.

Cobra 6

[vectorlw]

You only uses gray scale so 8bits I think it's enough

Vector

[VarnishedOtter]

I use Image->Mode->Grayscale in Photoshop and then save as an 8bit bmp.