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| 1 | +using System; |
| 2 | +using UnityEngine; |
| 3 | +using UnityEngine.Rendering; |
| 4 | + |
| 5 | +namespace MCPForUnity.Editor.Helpers |
| 6 | +{ |
| 7 | + internal static class RenderPipelineUtility |
| 8 | + { |
| 9 | + internal enum PipelineKind |
| 10 | + { |
| 11 | + BuiltIn, |
| 12 | + Universal, |
| 13 | + HighDefinition, |
| 14 | + Custom |
| 15 | + } |
| 16 | + |
| 17 | + private static readonly string[] BuiltInLitShaders = { "Standard", "Legacy Shaders/Diffuse" }; |
| 18 | + private static readonly string[] BuiltInUnlitShaders = { "Unlit/Color", "Unlit/Texture" }; |
| 19 | + private static readonly string[] UrpLitShaders = { "Universal Render Pipeline/Lit", "Universal Render Pipeline/Simple Lit" }; |
| 20 | + private static readonly string[] UrpUnlitShaders = { "Universal Render Pipeline/Unlit" }; |
| 21 | + private static readonly string[] HdrpLitShaders = { "HDRP/Lit", "High Definition Render Pipeline/Lit" }; |
| 22 | + private static readonly string[] HdrpUnlitShaders = { "HDRP/Unlit", "High Definition Render Pipeline/Unlit" }; |
| 23 | + |
| 24 | + internal static PipelineKind GetActivePipeline() |
| 25 | + { |
| 26 | + var asset = GraphicsSettings.currentRenderPipeline; |
| 27 | + if (asset == null) |
| 28 | + { |
| 29 | + return PipelineKind.BuiltIn; |
| 30 | + } |
| 31 | + |
| 32 | + var typeName = asset.GetType().FullName ?? string.Empty; |
| 33 | + if (typeName.IndexOf("HighDefinition", StringComparison.OrdinalIgnoreCase) >= 0 || |
| 34 | + typeName.IndexOf("HDRP", StringComparison.OrdinalIgnoreCase) >= 0) |
| 35 | + { |
| 36 | + return PipelineKind.HighDefinition; |
| 37 | + } |
| 38 | + |
| 39 | + if (typeName.IndexOf("Universal", StringComparison.OrdinalIgnoreCase) >= 0 || |
| 40 | + typeName.IndexOf("URP", StringComparison.OrdinalIgnoreCase) >= 0) |
| 41 | + { |
| 42 | + return PipelineKind.Universal; |
| 43 | + } |
| 44 | + |
| 45 | + return PipelineKind.Custom; |
| 46 | + } |
| 47 | + |
| 48 | + internal static Shader ResolveShader(string requestedNameOrAlias) |
| 49 | + { |
| 50 | + var pipeline = GetActivePipeline(); |
| 51 | + |
| 52 | + if (!string.IsNullOrWhiteSpace(requestedNameOrAlias)) |
| 53 | + { |
| 54 | + var alias = requestedNameOrAlias.Trim(); |
| 55 | + var aliasMatch = ResolveAlias(alias, pipeline); |
| 56 | + if (aliasMatch != null) |
| 57 | + { |
| 58 | + WarnIfPipelineMismatch(aliasMatch.name, pipeline); |
| 59 | + return aliasMatch; |
| 60 | + } |
| 61 | + |
| 62 | + var direct = Shader.Find(alias); |
| 63 | + if (direct != null) |
| 64 | + { |
| 65 | + WarnIfPipelineMismatch(direct.name, pipeline); |
| 66 | + return direct; |
| 67 | + } |
| 68 | + |
| 69 | + McpLog.Warn($"Shader '{alias}' not found. Falling back to {pipeline} defaults."); |
| 70 | + } |
| 71 | + |
| 72 | + var fallback = ResolveDefaultLitShader(pipeline) |
| 73 | + ?? ResolveDefaultLitShader(PipelineKind.BuiltIn) |
| 74 | + ?? Shader.Find("Unlit/Color"); |
| 75 | + |
| 76 | + if (fallback != null) |
| 77 | + { |
| 78 | + WarnIfPipelineMismatch(fallback.name, pipeline); |
| 79 | + } |
| 80 | + |
| 81 | + return fallback; |
| 82 | + } |
| 83 | + |
| 84 | + internal static Shader ResolveDefaultLitShader(PipelineKind pipeline) |
| 85 | + { |
| 86 | + return pipeline switch |
| 87 | + { |
| 88 | + PipelineKind.HighDefinition => TryFindShader(HdrpLitShaders) ?? TryFindShader(UrpLitShaders), |
| 89 | + PipelineKind.Universal => TryFindShader(UrpLitShaders) ?? TryFindShader(HdrpLitShaders), |
| 90 | + PipelineKind.Custom => TryFindShader(BuiltInLitShaders) ?? TryFindShader(UrpLitShaders) ?? TryFindShader(HdrpLitShaders), |
| 91 | + _ => TryFindShader(BuiltInLitShaders) ?? Shader.Find("Unlit/Color") |
| 92 | + }; |
| 93 | + } |
| 94 | + |
| 95 | + internal static Shader ResolveDefaultUnlitShader(PipelineKind pipeline) |
| 96 | + { |
| 97 | + return pipeline switch |
| 98 | + { |
| 99 | + PipelineKind.HighDefinition => TryFindShader(HdrpUnlitShaders) ?? TryFindShader(UrpUnlitShaders) ?? TryFindShader(BuiltInUnlitShaders), |
| 100 | + PipelineKind.Universal => TryFindShader(UrpUnlitShaders) ?? TryFindShader(HdrpUnlitShaders) ?? TryFindShader(BuiltInUnlitShaders), |
| 101 | + PipelineKind.Custom => TryFindShader(BuiltInUnlitShaders) ?? TryFindShader(UrpUnlitShaders) ?? TryFindShader(HdrpUnlitShaders), |
| 102 | + _ => TryFindShader(BuiltInUnlitShaders) |
| 103 | + }; |
| 104 | + } |
| 105 | + |
| 106 | + private static Shader ResolveAlias(string alias, PipelineKind pipeline) |
| 107 | + { |
| 108 | + if (string.Equals(alias, "lit", StringComparison.OrdinalIgnoreCase) || |
| 109 | + string.Equals(alias, "default", StringComparison.OrdinalIgnoreCase) || |
| 110 | + string.Equals(alias, "default_lit", StringComparison.OrdinalIgnoreCase)) |
| 111 | + { |
| 112 | + return ResolveDefaultLitShader(pipeline); |
| 113 | + } |
| 114 | + |
| 115 | + if (string.Equals(alias, "unlit", StringComparison.OrdinalIgnoreCase)) |
| 116 | + { |
| 117 | + return ResolveDefaultUnlitShader(pipeline); |
| 118 | + } |
| 119 | + |
| 120 | + if (string.Equals(alias, "urp_lit", StringComparison.OrdinalIgnoreCase)) |
| 121 | + { |
| 122 | + return TryFindShader(UrpLitShaders); |
| 123 | + } |
| 124 | + |
| 125 | + if (string.Equals(alias, "hdrp_lit", StringComparison.OrdinalIgnoreCase)) |
| 126 | + { |
| 127 | + return TryFindShader(HdrpLitShaders); |
| 128 | + } |
| 129 | + |
| 130 | + if (string.Equals(alias, "built_in_lit", StringComparison.OrdinalIgnoreCase)) |
| 131 | + { |
| 132 | + return TryFindShader(BuiltInLitShaders); |
| 133 | + } |
| 134 | + |
| 135 | + return null; |
| 136 | + } |
| 137 | + |
| 138 | + private static Shader TryFindShader(params string[] shaderNames) |
| 139 | + { |
| 140 | + foreach (var shaderName in shaderNames) |
| 141 | + { |
| 142 | + var shader = Shader.Find(shaderName); |
| 143 | + if (shader != null) |
| 144 | + { |
| 145 | + return shader; |
| 146 | + } |
| 147 | + } |
| 148 | + return null; |
| 149 | + } |
| 150 | + |
| 151 | + private static void WarnIfPipelineMismatch(string shaderName, PipelineKind activePipeline) |
| 152 | + { |
| 153 | + if (string.IsNullOrEmpty(shaderName)) |
| 154 | + { |
| 155 | + return; |
| 156 | + } |
| 157 | + |
| 158 | + var lowerName = shaderName.ToLowerInvariant(); |
| 159 | + bool shaderLooksUrp = lowerName.Contains("universal render pipeline") || lowerName.Contains("urp/"); |
| 160 | + bool shaderLooksHdrp = lowerName.Contains("high definition render pipeline") || lowerName.Contains("hdrp/"); |
| 161 | + bool shaderLooksBuiltin = lowerName.Contains("standard") || lowerName.Contains("legacy shaders/"); |
| 162 | + bool shaderLooksSrp = shaderLooksUrp || shaderLooksHdrp; |
| 163 | + |
| 164 | + switch (activePipeline) |
| 165 | + { |
| 166 | + case PipelineKind.HighDefinition: |
| 167 | + if (shaderLooksUrp) |
| 168 | + { |
| 169 | + McpLog.Warn($"[RenderPipelineUtility] Active pipeline is HDRP but shader '{shaderName}' looks URP-based. Asset may appear incorrect."); |
| 170 | + } |
| 171 | + else if (shaderLooksBuiltin && !shaderLooksHdrp) |
| 172 | + { |
| 173 | + McpLog.Warn($"[RenderPipelineUtility] Active pipeline is HDRP but shader '{shaderName}' looks Built-in. Consider using an HDRP shader for correct results."); |
| 174 | + } |
| 175 | + break; |
| 176 | + case PipelineKind.Universal: |
| 177 | + if (shaderLooksHdrp) |
| 178 | + { |
| 179 | + McpLog.Warn($"[RenderPipelineUtility] Active pipeline is URP but shader '{shaderName}' looks HDRP-based. Asset may appear incorrect."); |
| 180 | + } |
| 181 | + else if (shaderLooksBuiltin && !shaderLooksUrp) |
| 182 | + { |
| 183 | + McpLog.Warn($"[RenderPipelineUtility] Active pipeline is URP but shader '{shaderName}' looks Built-in. Consider using a URP shader for correct results."); |
| 184 | + } |
| 185 | + break; |
| 186 | + case PipelineKind.BuiltIn: |
| 187 | + if (shaderLooksSrp) |
| 188 | + { |
| 189 | + McpLog.Warn($"[RenderPipelineUtility] Active pipeline is Built-in but shader '{shaderName}' targets URP/HDRP. Asset may not render as expected."); |
| 190 | + } |
| 191 | + break; |
| 192 | + } |
| 193 | + } |
| 194 | + } |
| 195 | +} |
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