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75 行
2.0 KiB
75 行
2.0 KiB
#ifndef UNITY_STANDARD_INPUT_INCLUDED
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#define UNITY_STANDARD_INPUT_INCLUDED
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#include "UnityCG.cginc"
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#include "UnityStandardConfig.cginc"
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#include "UnityPBSLighting.cginc" // TBD: remove
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#include "UnityStandardUtils.cginc"
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//---------------------------------------
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// Directional lightmaps & Parallax require tangent space too
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#if (_NORMALMAP || DIRLIGHTMAP_COMBINED || _PARALLAXMAP)
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#define _TANGENT_TO_WORLD 1
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#endif
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#if defined(_NORMALMAP0) || defined(_NORMALMAP1) || defined(_NORMALMAP2) || defined(_NORMALMAP3)
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#define _TANGENT_TO_WORLD 1
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#endif
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#if (_DETAIL_MULX2 || _DETAIL_MUL || _DETAIL_ADD || _DETAIL_LERP)
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#define _DETAIL 1
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#endif
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// ref http://blog.selfshadow.com/publications/blending-in-detail/
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// ref https://gist.github.com/selfshadow/8048308
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// Reoriented Normal Mapping
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// Blending when n1 and n2 are already 'unpacked' and normalised
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// assume compositing in tangent space
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float3 BlendNormalRNM(float3 n1, float3 n2)
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{
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float3 t = n1.xyz + float3(0.0, 0.0, 1.0);
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float3 u = n2.xyz * float3(-1.0, -1.0, 1.0);
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float3 r = (t / t.z) * dot(t, u) - u;
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return r;
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}
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//-------------------------------------------------------------------------------------
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// Input functions
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struct VertexInput
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{
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float4 vertex : POSITION;
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half3 normal : NORMAL;
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float2 uv0 : TEXCOORD0;
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float2 uv1 : TEXCOORD1;
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#if defined(DYNAMICLIGHTMAP_ON) || defined(UNITY_PASS_META)
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float2 uv2 : TEXCOORD2;
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#endif
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// BEGIN LAYERED_PHOTOGRAMMETRY
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half4 color : COLOR;
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float2 uv3 : TEXCOORD3;
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// END LAYERED_PHOTOGRAMMETRY
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#ifdef _TANGENT_TO_WORLD
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half4 tangent : TANGENT;
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#endif
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UNITY_VERTEX_INPUT_INSTANCE_ID
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};
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float4 TexCoords(VertexInput v)
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{
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//float4 texcoord;
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//texcoord.xy = TRANSFORM_TEX(v.uv0, _MainTex); // Always source from uv0
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//texcoord.zw = TRANSFORM_TEX(((_UVSec == 0) ? v.uv0 : v.uv1), _DetailAlbedoMap);
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//return texcoord;
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float4 texcoord;
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texcoord.xy = v.uv0;
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texcoord.zw = v.uv1;
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return texcoord;
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}
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#endif // UNITY_STANDARD_INPUT_INCLUDED
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