diff options
Diffstat (limited to 'Assets/AmplifyShaderEditor/Plugins/EditorResources/Previews/Preview_VoronoiNode.shader')
| -rw-r--r-- | Assets/AmplifyShaderEditor/Plugins/EditorResources/Previews/Preview_VoronoiNode.shader | 251 |
1 files changed, 0 insertions, 251 deletions
diff --git a/Assets/AmplifyShaderEditor/Plugins/EditorResources/Previews/Preview_VoronoiNode.shader b/Assets/AmplifyShaderEditor/Plugins/EditorResources/Previews/Preview_VoronoiNode.shader deleted file mode 100644 index 81543702..00000000 --- a/Assets/AmplifyShaderEditor/Plugins/EditorResources/Previews/Preview_VoronoiNode.shader +++ /dev/null @@ -1,251 +0,0 @@ -Shader "Hidden/VoronoiNode" -{ - Properties - { - _A("_RGB", 2D) = "white" {} - _B("_RGB", 2D) = "white" {} - _C("_RGB", 2D) = "white" {} - _D ("_RGB", 2D) = "white" {} - _UseTileScale("_UseTileScale", Float) = 0 - _TileScale ("_TileScale", Int) = 1 - _MinkowskiPower("_MinkowskiPower", Float) = 0 - _DistFunc("_DistFunc", Int) = 0 - _MethodType("_MethodType", Int) = 0 - _SearchQuality("_SearchQuality", Int) = 1 - _Octaves("_Octaves", Int) = 1 - _UseSmoothness("_UseSmoothness", Int ) = 0 - } - SubShader - { - Tags { "RenderType"="Opaque" } - CGINCLUDE - sampler2D _A; - sampler2D _B; - sampler2D _C; - sampler2D _D; - float _UseTileScale = 0; - int _TileScale = 1; - float _MinkowskiPower = 1; - int _DistFunc = 0; - int _MethodType = 0; - int _SearchQuality = 0; - int _Octaves = 1; - int _PreviewID = 0; - int _UseSmoothness = 0; - - float2 VoronoiHash( float2 p ) - { - p = lerp( p, p - _TileScale * floor (p / _TileScale), _UseTileScale ); - p = float2(dot (p, float2(127.1, 311.7)), dot (p, float2(269.5, 183.3))); - return frac (sin (p) *43758.5453); - } - - float Voronoi( float2 v, float time, inout float2 id , float smoothness ) - { - float2 n = floor(v); - float2 f = frac(v); - float F1 = 8.0; - float F2 = 8.0; - float2 mr = 0; - float2 mg = 0; - for (int j = -_SearchQuality; j <= _SearchQuality; j++) - { - for (int i = -_SearchQuality; i <= _SearchQuality; i++) - { - float2 g = float2(i, j); - float2 o = VoronoiHash (n + g); - o = (sin (time + o * 6.2831) * 0.5 + 0.5); float2 r = g - f + o; - float d = 0; - //Euclidean^2 - if (_DistFunc == 0) - { - d = 0.5 * dot (r, r); - } - //Euclidean - else if (_DistFunc == 1) - { - d = 0.707 * sqrt (dot (r, r)); - } - //Manhattan - else if (_DistFunc == 2) - { - d = 0.5 * (abs (r.x) + abs (r.y)); - } - //Chebyshev - else if (_DistFunc == 3) - { - d = max (abs (r.x), abs (r.y)); - } - //Minkowski - else if (_DistFunc == 4) - { - d = (1 / pow(2, 1 / _MinkowskiPower)) * pow( ( pow( abs( r.x ), _MinkowskiPower) + pow( abs( r.y ), _MinkowskiPower) ), (1 / _MinkowskiPower)); - } - - if (_MethodType == 0 && _UseSmoothness == 1) - { - float h = smoothstep (0.0, 1.0, 0.5 + 0.5 * (F1 - d) / smoothness); - F1 = lerp (F1, d, h) - smoothness * h * (1.0 - h); - mg = g; mr = r; id = o; - } - else - { - if (d < F1) - { - F2 = F1; - F1 = d; mg = g; mr = r; id = o; - } - else if (d < F2) - { - F2 = d; - } - - } - - } - } - - //Cells - if(_MethodType == 0) - { - return F1; - } - //Crystal - else if (_MethodType == 1) - { - return F2; - } - //Glass - else if (_MethodType == 2) - { - return F2 - F1; - } - //Caustic - else if (_MethodType == 3) - { - return (F2 + F1) * 0.5; - } - //Distance - else if (_MethodType == 4) - { - F1 = 8.0; - for (int j = -2; j <= 2; j++) - { - for (int i = -2; i <= 2; i++) - { - float2 g = mg + float2(i, j); - float2 o = VoronoiHash (n + g); - o = ( sin (time + o * 6.2831) * 0.5 + 0.5); - float2 r = g - f + o; - float d = dot (0.5 * (mr + r), normalize (r - mr)); - F1 = min (F1, d); - } - } - return F1; - } - else - return F1; - } - - - ENDCG - - Pass // Voronoi - Unity - { - CGPROGRAM - #include "UnityCG.cginc" - #pragma vertex vert_img - #pragma fragment frag - - inline float2 UnityVoronoiRandomVector (float2 UV, float offset) - { - float2x2 m = float2x2(15.27, 47.63, 99.41, 89.98); - UV = frac (sin (mul (UV, m)) * 46839.32); - return float2(sin (UV.y* +offset) * 0.5 + 0.5, cos (UV.x* offset) * 0.5 + 0.5); - } - - //x - Out y - Cells - float3 UnityVoronoi (float2 UV, float AngleOffset, float CellDensity) - { - float2 g = floor (UV * CellDensity); - float2 f = frac (UV * CellDensity); - float t = 8.0; - float3 res = float3(8.0, 0.0, 0.0); - - for (int y = -1; y <= 1; y++) - { - for (int x = -1; x <= 1; x++) - { - float2 lattice = float2(x, y); - float2 offset = UnityVoronoiRandomVector (lattice + g, AngleOffset); - float d = distance (lattice + offset, f); - - if (d < res.x) - { - res = float3(d, offset.x, offset.y); - } - } - } - return res; - } - - float4 frag (v2f_img i) : SV_Target - { - float2 uvValue = tex2D(_A, i.uv).rg; - float angleOffset = tex2D(_B, i.uv).r; - float cellDensity = tex2D(_C, i.uv).r; - float3 voronoiVal = UnityVoronoi( uvValue, angleOffset , cellDensity ); - if( _PreviewID == 1 ) - return float4( voronoiVal.yz, 0, 1 ); - else - return float4( voronoiVal.xxx, 1); - } - ENDCG - } - - Pass // Voronoi - ASE - { - CGPROGRAM - #include "UnityCG.cginc" - #pragma vertex vert_img - #pragma fragment frag - - float4 frag (v2f_img i) : SV_Target - { - float2 uvValue = tex2D (_A, i.uv).rg; - float time = tex2D (_B, i.uv).r; - float scale = tex2D (_C, i.uv).r; - float smoothness = tex2D (_D, i.uv).r; - - float2 id = 0; - float voronoiVal = Voronoi( uvValue*scale,time, id, smoothness ); - if (_Octaves == 1) - { - if( _PreviewID == 1) - return float4( id, 0, 1 ); - else - return float4(voronoiVal.xxx, 1); - } - else - { - float fade = 0.5; - float voroi = 0; - float rest = 0; - for (int it = 0; it < _Octaves; it++) - { - voroi += fade * Voronoi( uvValue*scale, time, id, smoothness); - rest += fade; - uvValue *= 2; - fade *= 0.5; - } - voroi /= rest; - if( _PreviewID == 1 ) - return float4( id, 0, 1 ); - else - return float4(voroi.xxx, 1); - } - } - ENDCG - } - } -} |