在 Unity3D Android 中使用点光源

Question

我正在尝试为我的游戏使用点光源动画。它在带有 Diffuse、Bumped Specular 和 VertexLit 着色器的编辑器中运行良好。但是它不适用于默认提供的任何移动着色器。

有没有办法在 Android 中使用点光源？或者是否有任何着色器可以在手机上工作并且也支持点光源？

Answer 1

终于找到了答案——UnityAnswer 上的this post 帮助了我。我在这里重新发布自定义着色器 -

// Specular, Normal Maps with Main Texture
// Fragment based
Shader "SpecTest/SpecTest5" 
{
    Properties 
    {
        _Shininess ("Shininess", Range (0, 1.5)) = 0.078125
        _Color ("Main Color", Color) = (1,1,1,1)
        _SpecColor ("Specular Color", Color) = (0, 0, 0, 0)
        _MainTex ("Texture", 2D) = "white" {}
        _BumpMap ("Bump Map", 2D) = "bump" {}
        _NormalStrength ("Normal Strength", Range (0, 1.5)) = 1
    } // eo Properties
    SubShader 
    {
        // pass for 4 vertex lights, ambient light & first pixel light
        Tags { "RenderType"="Opaque" }
        LOD 200

        CGPROGRAM
        #pragma surface surf MobileBlinnPhong

        fixed4 LightingMobileBlinnPhong (SurfaceOutput s, fixed3 lightDir, fixed3 halfDir, fixed atten)
        {
            fixed diff = saturate(dot (s.Normal, lightDir));
            fixed nh = saturate(dot (s.Normal, halfDir)); //Instead of injecting the normalized light+view, we just inject view, which is provided as halfasview in the initial surface shader CG parameters

            fixed spec = pow (nh, s.Specular*128) * s.Gloss;

            fixed4 c;
            c.rgb = (s.Albedo * _LightColor0.rgb * diff + _SpecColor.rgb * spec) * (atten*2);
            c.a = 0.0;
            return c;
        }

        struct Input {
            float2 uv_MainTex;
            float2 uv_BumpMap;
        };

        // User-specified properties
        uniform sampler2D _MainTex;
        uniform sampler2D _BumpMap;
        uniform float _Shininess;
        uniform float _NormalStrength;
        uniform fixed4 _Color;      

        float3 expand(float3 v) { return (v - 0.5) * 2; } // eo expand 

        void surf (Input IN, inout SurfaceOutput o) {
            half4 tex = tex2D (_MainTex, IN.uv_MainTex) * _Color;
               o.Albedo = tex.rgb;
               o.Gloss = tex.a;
               o.Alpha = tex.a;
               o.Specular = _Shininess;

            // fetch and expand range-compressed normal
            float3 normalTex = UnpackNormal (tex2D (_BumpMap, IN.uv_BumpMap));
            float3 normal = normalTex * _NormalStrength;
            o.Normal = normal;
        } // eo surf

        ENDCG
    } 
        //Fallback "Specular"
  } // eo Shader

记得增加力量。显然它在帧速率上的成本太高了。我只是一个动画需要它，所以我用它。