UnityShader初级篇——凹凸映射

1.在切线空间下计算 Shader "Unity Shaders Book/Chapter 7/Normal Map In Tangent Space" { Properties { _Color ("Color Tint", Color) = (1,1,1,1) _MainTex("Main Tex", 2D) = "White" {} //法线纹理，bump是内置法线纹理

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