Parallax occlusion mapping makes a flat wall texture look deeper.
视差遮挡贴图能让一张平面的墙面纹理看起来更有深度。
To improve realism at grazing angles, the shader uses parallax occlusion mapping with a height map and multiple depth steps, balancing quality against performance.
为了在掠视角下提升真实感,这个着色器结合高度图与多次深度采样使用视差遮挡贴图,在画质与性能之间做权衡。