Page MenuHomePhabricator
Files F105086

PSlicer.shader
No One
Actions

Authored By
joe
Aug 9 2019, 10:58 AM
Size
4 KB
Referenced Files
None
Subscribers
None

PSlicer.shader
View Options

Shader "PSlicer"
{
Properties
{
_MainTex("Albedo", 2D) = "white" {}
_Color("Color", Color) = (1, 1, 1, 1)
[Gamma] _Metallic("Metallic", Range(0, 1)) = 0
_Glossiness("Smoothness", Range(0, 1)) = 0.5
[HDR] _EmissionColor("Emission", Color) = (0, 0, 0)
[Header(Backface Attributes)]
_Color2("Color", Color) = (1, 1, 1, 1)
[Gamma] _Metallic2("Metallic", Range(0, 1)) = 0
_Glossiness2("Smoothness", Range(0, 1)) = 0.5
_Cube("Reflection Map", Cube) = "" {}
_FresnelColor("Fresnel Color", Color) = (1,1,1,1)
_FresnelPower("Fresnel Power", Range(0, 10)) = 1
_FresnelScale("Fresnel Scale", Range(0, 10)) = 1
_FresnelBias("Fresnel Bias", Range(-10, 10)) = 0
[HideInInspector] _EffectorColor("", Color) = (0, 0, 0)
}
SubShader
{
Tags { "RenderType"="TransparentCutout" "Queue"="AlphaTest" }
Cull Off
CGPROGRAM
#pragma surface surf Standard fullforwardshadows addshadow
#pragma target 3.0
struct Input
{
float2 uv_MainTex;
float3 worldPos;
float vface : VFACE;
float3 worldRefl;
float3 viewDir;
};
sampler2D _MainTex;
half4 _Color;
half _Metallic;
half _Glossiness;
half3 _EmissionColor;
half4 _Color2;
half _Metallic2;
half _Glossiness2;
uniform samplerCUBE _Cube;
half4 _FresnelColor;
half _FresnelBias;
half _FresnelPower;
half _FresnelScale;
half _Density;
half _Speed;
bool _Band;
float _EffectorRange;
float _EffectorOffset;
float _EffectorBand;
float _EffectorBandRange;
float4x4 _EffectorMatrix;
half3 _EffectorColor;
float _LocalTime;
// Hash function from H. Schechter & R. Bridson, goo.gl/RXiKaH
uint Hash(uint s)
{
s ^= 2747636419u;
s *= 2654435769u;
s ^= s >> 16;
s *= 2654435769u;
s ^= s >> 16;
s *= 2654435769u;
return s;
}
float Random(uint seed)
{
return float(Hash(seed)) / 4294967295.0; // 2^32-1
}
void surf(Input IN, inout SurfaceOutputStandard o)
{
// Effect coordinates
float3 coord = mul(_EffectorMatrix, float4(IN.worldPos, 1));
// Density
float density1 = _Density;
float density2 = _Density / 2; // half density
float density3 = _Density / 3; // quarter density
// Current slice number
float slice1 = floor(coord.z * density1);
float slice2 = floor(coord.z * density2); // half density
float slice3 = floor(coord.z * density3); // quarter density
// Random number used to select density
float rnd2 = Random(slice2 + 10000) < 0.5;
float rnd3 = Random(slice3 + 10000) < 0.5;
// Actual density and current slice number
float density = lerp(lerp(density1, density2, rnd2), density3, rnd3);
float slice = lerp(lerp(slice1, slice2, rnd2), slice3, rnd3);
// Random seed for the current slice
uint seed = (uint)(slice * 199 + 10000);
// Scrolling speed
float speed = _Speed * (Random(seed) + 1) * 0.5;
// Convert into polar coordinates
float phi = atan2(coord.x, coord.y) * UNITY_INV_TWO_PI + 0.5;
phi = frac(phi + speed * _LocalTime);
// Threshold for the current slice
float th = (slice / density - _EffectorOffset) / _EffectorRange;
// If we're banding then rebound the phi value
phi = frac(phi);
if (_EffectorBand) {
if (phi < th-_EffectorBandRange) {
phi = (th-_EffectorBandRange) - phi + (th-_EffectorBandRange);
}
}
// Thresholding
if (phi < th) discard;
// Slice emission
float em = saturate(1 - (phi - th) * 5);
em *= 0.5 + Random(seed + 1);
// Surface shader output
half4 reflection = texCUBE(_Cube, IN.worldRefl);
half4 fresnel = (_FresnelBias + _FresnelScale * pow(1.0 - dot(normalize(IN.viewDir), o.Normal), _FresnelPower)) * _FresnelColor;
half4 c = tex2D(_MainTex, IN.uv_MainTex) * _Color + reflection + fresnel;
bool backface = IN.vface < 0;
o.Albedo = backface ? _Color2.rgb : c.rgb;
o.Metallic = backface ? _Metallic2 : _Metallic;
o.Smoothness = backface ? _Glossiness2 : _Glossiness;
o.Emission = (backface ? 0 : _EmissionColor) + em * _EffectorColor;
}
ENDCG
}
FallBack "Diffuse"
}

File Metadata

Mime Type
text/plain; charset=utf-8
Storage Engine
blob
Storage Format
Raw Data
Storage Handle
72200
Default Alt Text
PSlicer.shader (4 KB)

Event Timeline