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Bump Maps?

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falloffalot:
I think I've got this right, is a bump map a way of adding a bumpy texture to an object without messing about with the models faces?
If not...well, I'm an idiot.......but......
If so could someone give me an idiots guide to how its done please?

Thanks

lynn22:
You are right.
Example, if you have a brick wall (wall covered with a pic of bricks) if you then use that same picture and turn it into black and white where the mortar is black and the bricks are white, use it as a bump map and your brick wall will show grooves where the mortar is.

falloffalot:
Cool I'll have a go in a min.
Thanks lynn22

falloffalot:
Awesome:



Had a little trouble at first as I didn't realise the bump doesn't take effect until it's rendered.

Thanks for the help.

lynn22:
Sorry about that, I should have mentioned the render, I forgot   :)

Glad you found it, your image looks great.

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