Making our bump map!

What do I need to focus on?

A bump map comes down to personal preference. Sometimes you want a sticker that really stands out or you just want a subtle nuanced relief. I prefer stickers which really stand out but still are subtle in their height. Import your .png file in a new photoshop document. When everything is loaded up you go to Filter > NVIDIA Tools > NormalMapFilter... A small pop-up window should appear with the following options. I order to let the sticker come out you need the white lines on the top of the preview image and the darker ones on the bottom. If this is not the case unselect the option invert Y. The only thing you need to worry about is the option scale. I reccomend using a number which is based between 1 and 12. If you go higher it will give a weird effect which you don't want. With my sticker I roll with the value 8. When the tool has done its job you can see your bump map.If there are area's where you think certain parts are too stark I have a cool trick up my sleeve. Take the brush tool and select an opacity below 60%. Brush over the stark parts with the following color: "8080ff". This color is equal to our 0 value in the height properties map which does not contain any height. When you are satisfied with your result save the image as a targa extension (.tga).This is my final result.