Triplanar.shader
7.92 KB
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// Made with Amplify Shader Editor
// Available at the Unity Asset Store - http://u3d.as/y3X
Shader "Knife/Triplanar"
{
Properties
{
_MainTex("MainTex", 2D) = "white" {}
_Falloff("Falloff", Float) = 1
_Tiling("Tiling", Float) = 1
_Color("Color", Color) = (0,0,0,0)
_Smoothness("Smoothness", Range( 0 , 1)) = 0
[HideInInspector] __dirty( "", Int ) = 1
}
SubShader
{
Tags{ "RenderType" = "Opaque" "Queue" = "Geometry+0" }
Cull Back
CGINCLUDE
#include "UnityPBSLighting.cginc"
#include "Lighting.cginc"
#pragma target 3.0
#define ASE_TEXTURE_PARAMS(textureName) textureName
#ifdef UNITY_PASS_SHADOWCASTER
#undef INTERNAL_DATA
#undef WorldReflectionVector
#undef WorldNormalVector
#define INTERNAL_DATA half3 internalSurfaceTtoW0; half3 internalSurfaceTtoW1; half3 internalSurfaceTtoW2;
#define WorldReflectionVector(data,normal) reflect (data.worldRefl, half3(dot(data.internalSurfaceTtoW0,normal), dot(data.internalSurfaceTtoW1,normal), dot(data.internalSurfaceTtoW2,normal)))
#define WorldNormalVector(data,normal) half3(dot(data.internalSurfaceTtoW0,normal), dot(data.internalSurfaceTtoW1,normal), dot(data.internalSurfaceTtoW2,normal))
#endif
struct Input
{
float3 worldPos;
float3 worldNormal;
INTERNAL_DATA
};
uniform float4 _Color;
uniform sampler2D _MainTex;
uniform float _Tiling;
uniform float _Falloff;
uniform float _Smoothness;
inline float4 TriplanarSamplingSF( sampler2D topTexMap, float3 worldPos, float3 worldNormal, float falloff, float2 tiling, float3 normalScale, float3 index )
{
float3 projNormal = ( pow( abs( worldNormal ), falloff ) );
projNormal /= ( projNormal.x + projNormal.y + projNormal.z ) + 0.00001;
float3 nsign = sign( worldNormal );
half4 xNorm; half4 yNorm; half4 zNorm;
xNorm = ( tex2D( ASE_TEXTURE_PARAMS( topTexMap ), tiling * worldPos.zy * float2( nsign.x, 1.0 ) ) );
yNorm = ( tex2D( ASE_TEXTURE_PARAMS( topTexMap ), tiling * worldPos.xz * float2( nsign.y, 1.0 ) ) );
zNorm = ( tex2D( ASE_TEXTURE_PARAMS( topTexMap ), tiling * worldPos.xy * float2( -nsign.z, 1.0 ) ) );
return xNorm * projNormal.x + yNorm * projNormal.y + zNorm * projNormal.z;
}
void surf( Input i , inout SurfaceOutputStandard o )
{
o.Normal = float3(0,0,1);
float2 appendResult4 = (float2(_Tiling , _Tiling));
float3 ase_worldPos = i.worldPos;
float3 ase_worldNormal = WorldNormalVector( i, float3( 0, 0, 1 ) );
float4 triplanar2 = TriplanarSamplingSF( _MainTex, ase_worldPos, ase_worldNormal, _Falloff, appendResult4, 1.0, 0 );
o.Albedo = ( _Color * triplanar2 ).rgb;
o.Smoothness = _Smoothness;
o.Alpha = 1;
}
ENDCG
CGPROGRAM
#pragma surface surf Standard keepalpha fullforwardshadows
ENDCG
Pass
{
Name "ShadowCaster"
Tags{ "LightMode" = "ShadowCaster" }
ZWrite On
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#pragma target 3.0
#pragma multi_compile_shadowcaster
#pragma multi_compile UNITY_PASS_SHADOWCASTER
#pragma skip_variants FOG_LINEAR FOG_EXP FOG_EXP2
#include "HLSLSupport.cginc"
#if ( SHADER_API_D3D11 || SHADER_API_GLCORE || SHADER_API_GLES3 || SHADER_API_METAL || SHADER_API_VULKAN )
#define CAN_SKIP_VPOS
#endif
#include "UnityCG.cginc"
#include "Lighting.cginc"
#include "UnityPBSLighting.cginc"
struct v2f
{
V2F_SHADOW_CASTER;
float4 tSpace0 : TEXCOORD1;
float4 tSpace1 : TEXCOORD2;
float4 tSpace2 : TEXCOORD3;
UNITY_VERTEX_INPUT_INSTANCE_ID
UNITY_VERTEX_OUTPUT_STEREO
};
v2f vert( appdata_full v )
{
v2f o;
UNITY_SETUP_INSTANCE_ID( v );
UNITY_INITIALIZE_OUTPUT( v2f, o );
UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO( o );
UNITY_TRANSFER_INSTANCE_ID( v, o );
float3 worldPos = mul( unity_ObjectToWorld, v.vertex ).xyz;
half3 worldNormal = UnityObjectToWorldNormal( v.normal );
half3 worldTangent = UnityObjectToWorldDir( v.tangent.xyz );
half tangentSign = v.tangent.w * unity_WorldTransformParams.w;
half3 worldBinormal = cross( worldNormal, worldTangent ) * tangentSign;
o.tSpace0 = float4( worldTangent.x, worldBinormal.x, worldNormal.x, worldPos.x );
o.tSpace1 = float4( worldTangent.y, worldBinormal.y, worldNormal.y, worldPos.y );
o.tSpace2 = float4( worldTangent.z, worldBinormal.z, worldNormal.z, worldPos.z );
TRANSFER_SHADOW_CASTER_NORMALOFFSET( o )
return o;
}
half4 frag( v2f IN
#if !defined( CAN_SKIP_VPOS )
, UNITY_VPOS_TYPE vpos : VPOS
#endif
) : SV_Target
{
UNITY_SETUP_INSTANCE_ID( IN );
Input surfIN;
UNITY_INITIALIZE_OUTPUT( Input, surfIN );
float3 worldPos = float3( IN.tSpace0.w, IN.tSpace1.w, IN.tSpace2.w );
half3 worldViewDir = normalize( UnityWorldSpaceViewDir( worldPos ) );
surfIN.worldPos = worldPos;
surfIN.worldNormal = float3( IN.tSpace0.z, IN.tSpace1.z, IN.tSpace2.z );
surfIN.internalSurfaceTtoW0 = IN.tSpace0.xyz;
surfIN.internalSurfaceTtoW1 = IN.tSpace1.xyz;
surfIN.internalSurfaceTtoW2 = IN.tSpace2.xyz;
SurfaceOutputStandard o;
UNITY_INITIALIZE_OUTPUT( SurfaceOutputStandard, o )
surf( surfIN, o );
#if defined( CAN_SKIP_VPOS )
float2 vpos = IN.pos;
#endif
SHADOW_CASTER_FRAGMENT( IN )
}
ENDCG
}
}
Fallback "Diffuse"
CustomEditor "ASEMaterialInspector"
}
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