No.502057 ViewReplyOriginalReport
Using OpenGL and C++ I render partially transparent brush textures on mousemove as seen on the left and get the following result which I don't want. I want the result on the right, from photoshop, which uses the same texture.

In my application I hold the mouse down and basically generate points with the Bresenham algorithm. Then, I render the soft brush texture at each point.

I expect the program to add my textures together, but I get darkening and banding around each texture.

I also use the following GL settings.

Do I have a problem with incorrect blend modes or transparency sorting or both ?