48 lines
1.5 KiB
C#
48 lines
1.5 KiB
C#
// Amplify Shader Editor - Visual Shader Editing Tool
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// Copyright (c) Amplify Creations, Lda <info@amplify.pt>
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using System;
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namespace AmplifyShaderEditor
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{
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[Serializable]
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[NodeAttributes( "Parallax Offset", "UV Coordinates", "Calculates UV offset for parallax normal mapping" )]
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public sealed class ParallaxOffsetHlpNode : HelperParentNode
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{
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public readonly string[] ParallaxOffsetFunc =
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{
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"inline float2 ParallaxOffset( half h, half height, half3 viewDir )\n",
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"{\n",
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"\th = h * height - height/2.0;\n",
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"\tfloat3 v = normalize( viewDir );\n",
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"\tv.z += 0.42;\n",
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"\treturn h* (v.xy / v.z);\n",
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"}\n"
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};
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void OnSRPActionEvent( int outputId, ref MasterNodeDataCollector dataCollector )
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{
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dataCollector.AddFunction( ParallaxOffsetFunc[ 0 ], ParallaxOffsetFunc, false );
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}
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protected override void CommonInit( int uniqueId )
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{
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base.CommonInit( uniqueId );
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m_funcType = "ParallaxOffset";
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m_inputPorts[ 0 ].ChangeProperties( "H", WirePortDataType.FLOAT, false );
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AddInputPort( WirePortDataType.FLOAT, false, "Height" );
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AddInputPort( WirePortDataType.FLOAT3, false, "ViewDir (tan)" );
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m_outputPorts[ 0 ].ChangeType( WirePortDataType.FLOAT2, false );
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m_outputPorts[ 0 ].Name = "Out";
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OnHDAction = OnSRPActionEvent;
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OnLightweightAction = OnSRPActionEvent;
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m_previewShaderGUID = "6085f804c6fbf354eac039c11feaa7cc";
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}
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protected override void OnUniqueIDAssigned()
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{
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base.OnUniqueIDAssigned();
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m_localVarName = "paralaxOffset" + OutputId;
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}
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}
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}
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