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View Full Version : create a brush without transparency??!!


maru_mari
July 13th, 2006, 04:56 PM
I'm working on making heightmaps and would like to have brushes made from a greyscale image, say a simple hill, where white is at the peak with a gradient to dark grey at the "base" of the hill. After I save the brush, the white peak is transparent so the background color shows instead of the white color that I want. Is there a way I can keep the color values from the original image instead of getting transparency/alpha? Or, do I have to keep the image(s) as seperate layers, which would suck.

Thanx,
m_m

Datameister
July 13th, 2006, 07:36 PM
I've run into this before. Here's what you have to remember:

A Photoshop brush image map shows how much of a given color it will lay down. Black signifies 100% opacity and white signifies 0% opacity. So if you want the brush to lay down a white color at the highest altitudes, press ctrl-I to invert the the original map (black at the highest altitudes) and then turn this into a brush. Pick white as your foreground color, and it should work just fine. Here' (http://img153.imageshack.us/img153/7978/brushdemo1lp.gif)s an example of what your brush image should and shouldn't look like.