Photoshop :: 3D In CS6 - How To PAINT Unadulterated Color Directly Onto Model

I have a question for CS6 experts, and grateful for any responses.I'd like to paint directly onto a .obj file in 3d; doing all my texture work in PS. In earlier CS extended version, I could paint directly onto the model, and the color was opaque and gave me the pure color I was looking at.

Now, when I paint onto the modelin CS6, I see the color is diffused, or the lighting is affecting it, or it's blended with the lighting... Why? And how might I paint directly onto the model, and "turn off" the lighting without it all going to shadow? When I turn off the eye for the light, it all goes black.

Essentially, I would like to simply paint directly on the model in 3d space, creating my own light and shadow with my paint texture.. I attached an image here of what I was capable of in an earlier version; you can see that the color is "solid" and not diffused through to the lighting setup in the model. I would like to eliminate ps lighting as much as possible, and have the pure color show up on the model..