I have a heightmap that i want to turn into a normal map in Zbrush. But I need the size to be specific and right. The Height map image is 2048 x 2048 how do i sculpt and generate a normal map keeping that same size? I hope this question is clear.
To generate a specific size normal map in ZBrush, simply assign a blank texture of that size to the model before you enter ZMapper. ZMapper will then create the map at that size.