Brush's HieghtMap Question

[Polygoon]

Makes sense that 0 hieght is 50% grey on your HieghtMap layer of a brush, but having it 50% still is effecting hieght when using the brush, leaving a circle around the intended brush shape. I have tried 49% & 51%, but this only increases the problem. Then I have tried to mask out area outside the brush shape on the hieght map, which works to a certain extent, but when the brush is loaded it only masks a rectangular shape the size of the brush shape. Why doesn't it follow the shape of the mask? Or even better what exactly is zero value? clearly its not 50%.

Any body have any solutions?

 

Thanks.

 

Edit : Well I have it working properly now, just put masks on other layers. I am still confused as to whats going on here though, it doesn't show as being any different on the thumbs that pop up when you hover over the brush. Wouldn't it just work if the alpha shows as being correct there? apparently not.

Edited September 18, 2013 by Polygoon