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优化星盘和各种shadr

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Signed-off-by: TRADER_FOER <lhf190@outlook.com>
This commit is contained in:
TRADER_FOER
2026-07-21 19:33:51 +08:00
parent 8f230831e9
commit 9e5c383a49
16 changed files with 480 additions and 767 deletions
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45
Assets/ThemeBundles/DepartureToMultiverse/Shaders/DTM_RandomGridFloor.shader
View File

@@ -146,6 +146,37 @@ Shader "Soullies/DTM_RandomGridFloor"
return minDist;
}
float DistanceFadeMaskWithEarlyClip(float3 positionWS)
{
float3 cameraDelta = positionWS - GetCameraPositionWS();
float distSq = dot(cameraDelta, cameraDelta);
float clipDistance = max(max(_FadeFar, _FadeNear), 0.0001);
clip(clipDistance * clipDistance - distSq);
float nearSq = _FadeNear * _FadeNear;
float farSq = _FadeFar * _FadeFar;
return saturate((distSq - farSq) / (nearSq - farSq + 0.0001));
}
float GridLineMaskCentered(float v)
{
float lowerStep = min(_StepA, _StepB);
float upperStep = max(_StepA, _StepB);
float stepWidth = upperStep - lowerStep;
float center = (lowerStep + upperStep) * 0.5;
float halfWidth = max(stepWidth * 0.5, 0.000001);
float fw = max(fwidth(v), 0.000001);
float widthMask = step(0.000001, stepWidth);
float lowerEdge = center - halfWidth;
float upperEdge = center + halfWidth;
float lowerMask = smoothstep(lowerEdge - fw, lowerEdge + fw, v);
float upperMask = smoothstep(upperEdge - fw, upperEdge + fw, v);
return saturate(lowerMask - upperMask) * widthMask;
}
// -------------------------------------
// Vertex Shader
Varyings vert(Attributes input)
@@ -174,6 +205,8 @@ Shader "Soullies/DTM_RandomGridFloor"
// ==========================================
// 1. inner Grid Pattern Calculation
// ==========================================
float fadeMask = DistanceFadeMaskWithEarlyClip(input.positionWS);
float2 worldUV = input.positionWS.xz;
// Density Multiplier: Higher density = smaller frames = more quantity
@@ -194,10 +227,7 @@ Shader "Soullies/DTM_RandomGridFloor"
float v = VoronoiDistanceFast(rotatedUV, t);
// Anti-aliased border mask computation
float fw = fwidth(v);
float edge1 = smoothstep(_StepA - fw, _StepA + fw, v);
float edge2 = smoothstep(_StepB - fw, _StepB + fw, v);
float gridAlphaMask = edge2 - edge1;
float gridAlphaMask = GridLineMaskCentered(v);
half3 gridColor = _Color0.rgb;
half gridAlpha = gridAlphaMask * _Color0.a;
@@ -227,13 +257,6 @@ Shader "Soullies/DTM_RandomGridFloor"
// ==========================================
// 3. Distance Fade (Far = Transparent, Near = Opaque)
// ==========================================
float distToCam = distance(GetCameraPositionWS(), input.positionWS);
// When dist >= _FadeFar => fadeMask = 0 (Fully Transparent)
// When dist <= _FadeNear => fadeMask = 1 (Fully Opaque)
float rawFade = (distToCam - _FadeFar) / (_FadeNear - _FadeFar + 0.0001);
float fadeMask = saturate(rawFade);
finalAlpha *= fadeMask;
// Apply URP Fog

69
Assets/ThemeBundles/DepartureToMultiverse/Shaders/DTM_RandomGridTube.shader
View File

@@ -23,6 +23,7 @@ Shader "Soullies/DTM_RandomGridTube"
_FadeFar("Fade Far (Fully Transparent)", Float) = 100.0
_FadeNear("Fade Near (Fully Opaque)", Float) = 20.0
_TubeRadius("Virtual Tube Radius", Float) = 10.0
[Toggle(_USE_MESH_UV_ON)] _UseMeshUV("Use Mesh UV U Mapping", Float) = 0
[Header(Render State)]
[Enum(UnityEngine.Rendering.BlendMode)] _SrcBlend("Src Blend", Float) = 5 // SrcAlpha
@@ -56,6 +57,7 @@ Shader "Soullies/DTM_RandomGridTube"
#pragma prefer_hlslcc gles
#pragma multi_compile_instancing
#pragma multi_compile_fog
#pragma shader_feature_local _USE_MESH_UV_ON
#pragma vertex vert
#pragma fragment frag
@@ -74,6 +76,7 @@ Shader "Soullies/DTM_RandomGridTube"
float4 positionCS : SV_POSITION;
float3 positionWS : TEXCOORD0;
float3 positionOS : TEXCOORD1;
float2 uv : TEXCOORD2;
half fogFactor : TEXCOORD3;
UNITY_VERTEX_INPUT_INSTANCE_ID
UNITY_VERTEX_OUTPUT_STEREO
@@ -144,6 +147,44 @@ Shader "Soullies/DTM_RandomGridTube"
return minDist;
}
float WrapAngle(float angle)
{
if(angle > 3.14159265) angle -= 6.2831853;
if(angle < -3.14159265) angle += 6.2831853;
return angle;
}
float DistanceFadeMaskWithEarlyClip(float3 positionWS)
{
float3 cameraDelta = positionWS - GetCameraPositionWS();
float distSq = dot(cameraDelta, cameraDelta);
float clipDistance = max(max(_FadeFar, _FadeNear), 0.0001);
clip(clipDistance * clipDistance - distSq);
float nearSq = _FadeNear * _FadeNear;
float farSq = _FadeFar * _FadeFar;
return saturate((distSq - farSq) / (nearSq - farSq + 0.0001));
}
float GridLineMaskCentered(float v)
{
float lowerStep = min(_StepA, _StepB);
float upperStep = max(_StepA, _StepB);
float stepWidth = upperStep - lowerStep;
float center = (lowerStep + upperStep) * 0.5;
float halfWidth = max(stepWidth * 0.5, 0.000001);
float fw = max(fwidth(v), 0.000001);
float widthMask = step(0.000001, stepWidth);
float lowerEdge = center - halfWidth;
float upperEdge = center + halfWidth;
float lowerMask = smoothstep(lowerEdge - fw, lowerEdge + fw, v);
float upperMask = smoothstep(upperEdge - fw, upperEdge + fw, v);
return saturate(lowerMask - upperMask) * widthMask;
}
// -------------------------------------
// Vertex Shader
Varyings vert(Attributes input)
@@ -157,6 +198,7 @@ Shader "Soullies/DTM_RandomGridTube"
output.positionCS = vertexInput.positionCS;
output.positionWS = vertexInput.positionWS;
output.positionOS = input.positionOS.xyz;
output.uv = input.uv;
output.fogFactor = ComputeFogFactor(vertexInput.positionCS.z);
return output;
@@ -172,16 +214,22 @@ Shader "Soullies/DTM_RandomGridTube"
// ==========================================
// 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);
float fadeMask = DistanceFadeMaskWithEarlyClip(input.positionWS);
// Rotate the seam mechanically
float angleOffset = _SeamRotation * (3.14159265 / 180.0);
#if defined(_USE_MESH_UV_ON)
float rawAngle = input.uv.x * 6.2831853 - 3.14159265;
#else
// Calculate angle around the Z-axis in object space. atan2 returns [-PI, PI].
float rawAngle = atan2(input.positionOS.y, input.positionOS.x);
#endif
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;
angle = WrapAngle(angle);
// Derive distance to the seam (seam is at absolute PI or -PI)
float distToSeam = 3.14159265 - abs(angle);
@@ -218,10 +266,7 @@ Shader "Soullies/DTM_RandomGridTube"
float voronoiV = VoronoiDistanceFast(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;
float gridAlphaMask = GridLineMaskCentered(voronoiV);
half3 gridColor = _Color0.rgb;
half gridAlpha = gridAlphaMask * _Color0.a;
@@ -229,14 +274,6 @@ Shader "Soullies/DTM_RandomGridTube"
// ==========================================
// 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;