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// Amplify Shader Editor - Visual Shader Editing Tool
// Copyright (c) Amplify Creations, Lda <info@amplify.pt>
namespace AmplifyShaderEditor
{
[System.Serializable]
[NodeAttributes( "Edge Length Tessellation", "Miscellaneous", "Tessellation level computed based on triangle edge length on the screen" )]
public sealed class EdgeLengthTessNode : TessellationParentNode
{
private const string FunctionBody = "UnityEdgeLengthBasedTess (v0.vertex, v1.vertex, v2.vertex, {0})";
protected override void CommonInit( int uniqueId )
{
base.CommonInit( uniqueId );
AddInputPort( WirePortDataType.FLOAT, false, "Edge Length" );
AddOutputPort( WirePortDataType.FLOAT4, Constants.EmptyPortValue );
}
protected override string BuildTessellationFunction( ref MasterNodeDataCollector dataCollector )
{
return string.Format( FunctionBody, m_inputPorts[ 0 ].GeneratePortInstructions( ref dataCollector ) );
}
}
}
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