Below are 3 properties which are present with parallax mapping:
material.useParallax = true;− This enables parallax mapping. To use this property you need to assign bump texture to the material first.material.useParallaxOcclusion = true;− To use this property, you have to setuseParallaxtrue. It enables Parallax Occlusion.material.parallaxScaleBias = 0.1;− Applies a scaling factor for the depth to be as singed to the mesh. A value between .05 and .1 is fine for Parallax. For occlusion, you can reach 0.2.