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Joint Photographic Experts Group Image  |  1996-02-08  |  151KB  |  640x512  |  16-bit (51,031 colors)
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OCR: BUMP MAP CREATION FOR COLOUR TEXTURES 1 LOAD A COLOUR TEXTURE INTO YOUR FAVOURITE IMAGE MANIPULATION PACKAGE, EG PHOTOSHOP, PHOTOGENICS ETC.. 2 CONVERT THIS INTO A GREYSCALE IMAGE. ADJUST THE CONTRAST LEVELS TO ACHIEVE THE DESIRED BUMP HEIGHTS, LIGHTER SHADES APPEAR HIGHER GAMMA CORRECTION IS SOMETIMES USEFUL AT THIS STAGE. HIGH LOW REMEMBER BLACK IS LOW ALTITUDE AND WHITE IS HIGH