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SoulliesOfficial
2026-03-22 06:20:07 -04:00
parent 9d492bb71e
commit f28bc68518
101 changed files with 226057 additions and 23770 deletions
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Assets/ThemeBundles/DepartureToMultiverse/Shaders/DTM_RandomGridTube.shader Normal file
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Shader "Soullies/DTM_RandomGridTube"
{
Properties
{
[HDR]_Color0("Color0", Color) = (1, 1, 1, 0)
[Header(Pattern Settings)]
_PatternSize("Pattern Size (X, Y)", Vector) = (2.0, 2.0, 0, 0)
_GridDensity("Grid Density (Quantity Multiplier)", Float) = 1.0
_TimeAngle("Time Angle (Speed)", Float) = 1.0
[Header(Edge Settings)]
_StepA("Step A", Range(0, 1)) = 0.293
_StepB("Step B", Range(0, 1)) = 0.345
[Header(Seam Hiding)]
_SeamRotation("Seam Angle Offset", Range(-180, 180)) = -90.0
_SeamFadeWidth("Seam Cut Width", Range(0.0, 1.0)) = 0.2
_SeamFadeSmoothness("Seam Softness", Range(0.0, 1.0)) = 1.0
[Header(Tube Specific Settings)]
_FadeFar("Fade Far (Fully Transparent)", Float) = 100.0
_FadeNear("Fade Near (Fully Opaque)", Float) = 20.0
_TubeRadius("Virtual Tube Radius", Float) = 10.0
[Header(Render State)]
[Enum(UnityEngine.Rendering.BlendMode)] _SrcBlend("Src Blend", Float) = 5 // SrcAlpha
[Enum(UnityEngine.Rendering.BlendMode)] _DstBlend("Dst Blend", Float) = 10 // OneMinusSrcAlpha
[Enum(Off, 0, On, 1)] _ZWrite("Z Write", Float) = 0
[Enum(Front, Back, Off)] _CullMode("Cull Mode", Float) = 1 // Front (Inside)
}
SubShader
{
Tags
{
"RenderPipeline" = "UniversalPipeline"
"RenderType" = "Transparent"
"Queue" = "Transparent-300"
"UniversalMaterialType" = "Unlit"
"IgnoreProjector" = "True"
}
Blend [_SrcBlend] [_DstBlend]
ZWrite [_ZWrite]
Cull [_CullMode] // Default Cull Front to see inside the tube
Pass
{
Name "ForwardOnly"
Tags { "LightMode" = "UniversalForwardOnly" }
HLSLPROGRAM
#pragma target 4.5
#pragma prefer_hlslcc gles
#pragma multi_compile_instancing
#pragma multi_compile_fog
#pragma vertex vert
#pragma fragment frag
#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
struct Attributes
{
float4 positionOS : POSITION;
float2 uv : TEXCOORD0;
UNITY_VERTEX_INPUT_INSTANCE_ID
};
struct Varyings
{
float4 positionCS : SV_POSITION;
float3 positionWS : TEXCOORD0;
float3 positionOS : TEXCOORD1;
half fogFactor : TEXCOORD3;
UNITY_VERTEX_INPUT_INSTANCE_ID
UNITY_VERTEX_OUTPUT_STEREO
};
CBUFFER_START(UnityPerMaterial)
half4 _Color0;
float4 _PatternSize;
float _GridDensity;
float _TimeAngle;
float _StepA;
float _StepB;
float _SeamRotation;
float _SeamFadeWidth;
float _SeamFadeSmoothness;
float _FadeFar;
float _FadeNear;
float _TubeRadius;
CBUFFER_END
// -------------------------------------
// Custom Helper Functions
float2 VoronoiHash(float2 p)
{
p = float2(dot(p, float2(127.1, 311.7)), dot(p, float2(269.5, 183.3)));
return frac(sin(p) * 43758.5453);
}
// Manhattan-based Voronoi optimized for Mobile URP
float VoronoiDistance(float2 v, float t)
{
float2 n = floor(v);
float2 f = frac(v);
float minDist = 8.0;
UNITY_UNROLL
for (int j = -1; j <= 1; j++)
{
UNITY_UNROLL
for (int i = -1; i <= 1; i++)
{
float2 g = float2((float)i, (float)j);
float2 o = VoronoiHash(n + g);
// Oscillating movement
o = sin(t + o * 6.2831853) * 0.5 + 0.5;
float2 r = f - g - o;
// Manhattan distance for rectangular frames
float d = 0.5 * (abs(r.x) + abs(r.y));
minDist = min(minDist, d);
}
}
return minDist;
}
// -------------------------------------
// Vertex Shader
Varyings vert(Attributes input)
{
Varyings output = (Varyings)0;
UNITY_SETUP_INSTANCE_ID(input);
UNITY_TRANSFER_INSTANCE_ID(input, output);
UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(output);
VertexPositionInputs vertexInput = GetVertexPositionInputs(input.positionOS.xyz);
output.positionCS = vertexInput.positionCS;
output.positionWS = vertexInput.positionWS;
output.positionOS = input.positionOS.xyz;
output.fogFactor = ComputeFogFactor(vertexInput.positionCS.z);
return output;
}
// -------------------------------------
// Fragment Shader
half4 frag(Varyings input) : SV_Target
{
UNITY_SETUP_INSTANCE_ID(input);
UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(input);
// ==========================================
// 1. Cylindrical Mapping & Seam Control
// ==========================================
// Calculate angle around the Z-axis in object space. atan2 returns [-PI, PI].
float rawAngle = atan2(input.positionOS.y, input.positionOS.x);
// Rotate the seam mechanically
float angleOffset = _SeamRotation * (3.14159265 / 180.0);
float angle = rawAngle + angleOffset;
// Wrap angle to [-PI, PI] to keep math bounded
if(angle > 3.14159265) angle -= 6.2831853;
if(angle < -3.14159265) angle += 6.2831853;
// Derive distance to the seam (seam is at absolute PI or -PI)
float distToSeam = 3.14159265 - abs(angle);
// Seam alpha fading calculation
float endFade = _SeamFadeWidth * 3.14159265;
float startFade = endFade * (1.0 - _SeamFadeSmoothness);
float seamFadeMask = smoothstep(startFade, endFade + 0.0001, distToSeam);
// Convert adjusted angle to U coordinate
float u = angle * _TubeRadius;
// V is driven by World Z to maintain seamless tiling
float v = input.positionWS.z;
float2 cylindricalUV = float2(u, v);
// Density Multiplier
float density = max(_GridDensity, 0.0001);
float2 sizeDivisor = max(_PatternSize.xy, float2(0.0001, 0.0001)) / density;
float2 scaledUV = cylindricalUV / sizeDivisor;
// Rotate 45 degrees
float c = 0.707106;
float s = 0.707106;
float2 rotatedUV = mul(scaledUV, float2x2(c, -s, s, c));
// Time driven animation
float t = _TimeAngle * _TimeParameters.x;
// Voronoi mathematical noise
float voronoiV = VoronoiDistance(rotatedUV, t);
// Anti-aliased border mask computation
float fw = fwidth(voronoiV);
float edge1 = smoothstep(_StepA - fw, _StepA + fw, voronoiV);
float edge2 = smoothstep(_StepB - fw, _StepB + fw, voronoiV);
float gridAlphaMask = edge2 - edge1;
half3 gridColor = _Color0.rgb;
half gridAlpha = gridAlphaMask * _Color0.a;
// ==========================================
// 2. Distance Fade (Far = Transparent, Near = Opaque)
// ==========================================
float distToCam = distance(GetCameraPositionWS(), input.positionWS);
// If distToCam is between _FadeFar and _FadeNear, smoothly transition
// When dist = _FadeFar, fadeMask = 0 (Transparent)
// When dist = _FadeNear, fadeMask = 1 (Opaque)
float rawFade = (distToCam - _FadeFar) / (_FadeNear - _FadeFar + 0.0001);
float fadeMask = saturate(rawFade);
// Multiply the alpha by our camera distance fade AND seam smooth fade
gridAlpha *= fadeMask * seamFadeMask;
// Apply URP Fog
gridColor = MixFog(gridColor, input.fogFactor);
return half4(gridColor, gridAlpha);
}
ENDHLSL
}
}
FallBack "Hidden/Universal Render Pipeline/FallbackError"
}