// Simplified VertexLit shader, optimized for high-poly meshes. Differences from regular VertexLit one:
// - less per-vertex work compared with Mobile-VertexLit
// - supports only DIRECTIONAL lights and ambient term, saves some vertex processing power
// - no per-material color
// - no specular
// - no emission
Shader "Mobile/VertexLit (Only Directional Lights)" {
Properties {
_MainTex ("Base (RGB)", 2D) = "white" {}
}
SubShader {
Tags { "RenderType"="Opaque" }
LOD 80
Pass {
Name "FORWARD"
Tags { "LightMode" = "ForwardBase" }
CGPROGRAM
#pragma vertex vert_surf
#pragma fragment frag_surf
#pragma fragmentoption ARB_precision_hint_fastest
#pragma multi_compile_fwdbase
#include "HLSLSupport.cginc"
#define UNITY_PASS_FORWARDBASE
#include "UnityCG.cginc"
#include "Lighting.cginc"
#include "AutoLight.cginc"
#define INTERNAL_DATA
#define WorldReflectionVector(data,normal) data.worldRefl
#define WorldNormalVector(data,normal) normal
inline float3 LightingLambertVS (float3 normal, float3 lightDir)
{
fixed diff = max (0, dot (normal, lightDir));
return _LightColor0.rgb * (diff * 2);
}
sampler2D _MainTex;
struct Input {
float2 uv_MainTex;
};
void surf (Input IN, inout SurfaceOutput o) {
half4 c = tex2D (_MainTex, IN.uv_MainTex);
o.Albedo = c.rgb;
o.Alpha = c.a;
}
struct v2f_surf {
float4 pos : SV_POSITION;
float2 pack0 : TEXCOORD0;
#ifdef LIGHTMAP_OFF
fixed3 normal : TEXCOORD1;
#endif
#ifndef LIGHTMAP_OFF
float2 lmap : TEXCOORD2;
#endif
#ifdef LIGHTMAP_OFF
fixed3 vlight : TEXCOORD2;
#endif
LIGHTING_COORDS(3,4)
};
#ifndef LIGHTMAP_OFF
float4 unity_LightmapST;
float4 unity_LightmapFade;
#endif
float4 _MainTex_ST;
v2f_surf vert_surf (appdata_full v) {
v2f_surf o;
o.pos = mul (UNITY_MATRIX_MVP, v.vertex);
o.pack0.xy = TRANSFORM_TEX(v.texcoord, _MainTex);
#ifndef LIGHTMAP_OFF
o.lmap.xy = v.texcoord1.xy * unity_LightmapST.xy + unity_LightmapST.zw;
#endif
float3 worldN = mul((float3x3)_Object2World, SCALED_NORMAL);
#ifdef LIGHTMAP_OFF
o.normal = worldN;
#endif
#ifdef LIGHTMAP_OFF
o.vlight = ShadeSH9 (float4(worldN,1.0));
o.vlight += LightingLambertVS (worldN, _WorldSpaceLightPos0.xyz);
#endif // LIGHTMAP_OFF
TRANSFER_VERTEX_TO_FRAGMENT(o);
return o;
}
#ifndef LIGHTMAP_OFF
sampler2D unity_Lightmap;
#endif
fixed4 frag_surf (v2f_surf IN) : COLOR {
Input surfIN;
surfIN.uv_MainTex = IN.pack0.xy;
SurfaceOutput o;
o.Albedo = 0.0;
o.Emission = 0.0;
o.Specular = 0.0;
o.Alpha = 0.0;
o.Gloss = 0.0;
#ifdef LIGHTMAP_OFF
o.Normal = IN.normal;
#else
o.Normal = 0;
#endif
surf (surfIN, o);
fixed atten = LIGHT_ATTENUATION(IN);
fixed4 c = 0;
#ifdef LIGHTMAP_OFF
c.rgb = o.Albedo * IN.vlight * atten;
#endif // LIGHTMAP_OFF
#ifndef LIGHTMAP_OFF
fixed3 lm = DecodeLightmap (tex2D(unity_Lightmap, IN.lmap.xy));
#ifdef SHADOWS_SCREEN
c.rgb += o.Albedo * min(lm, atten*2);
#else
c.rgb += o.Albedo * lm;
#endif
c.a = o.Alpha;
#endif // !LIGHTMAP_OFF
return c;
}
ENDCG
}
}
FallBack "Mobile/VertexLit"
}
最終更新:2013年02月03日 09:47