124 lines
4.7 KiB
C#
124 lines
4.7 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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using UnityEngine;
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using UnityEditor;
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namespace AmplifyShaderEditor
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{
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[Serializable]
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[NodeAttributes( "Billboard", "Miscellaneous", "Calculates new Vertex positions and normals to achieve a billboard effect." )]
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public sealed class BillboardNode : ParentNode
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{
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private const string ErrorMessage = "Billboard node should only be connected to vertex ports.";
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private const string WarningMessage = "This node is a bit different from all others as it injects the necessary code into the vertex body and writes directly on the vertex position and normal.\nIt outputs a value of 0 so it can be connected directly to a vertex port.\n[Only if that port is a relative vertex offset].";
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[SerializeField]
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private BillboardType m_billboardType = BillboardType.Cylindrical;
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[SerializeField]
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private bool m_rotationIndependent = false;
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private UpperLeftWidgetHelper m_upperLeftWidget = new UpperLeftWidgetHelper();
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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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AddOutputPort( WirePortDataType.FLOAT3, "Out" );
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m_textLabelWidth = 115;
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m_hasLeftDropdown = true;
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SetAdditonalTitleText( string.Format( Constants.SubTitleTypeFormatStr, m_billboardType ) );
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}
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public override void Destroy()
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{
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base.Destroy();
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m_upperLeftWidget = null;
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}
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public override void AfterCommonInit()
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{
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base.AfterCommonInit();
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if( PaddingTitleLeft == 0 )
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{
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PaddingTitleLeft = Constants.PropertyPickerWidth + Constants.IconsLeftRightMargin;
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if( PaddingTitleRight == 0 )
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PaddingTitleRight = Constants.PropertyPickerWidth + Constants.IconsLeftRightMargin;
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}
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}
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public override void Draw( DrawInfo drawInfo )
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{
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base.Draw( drawInfo );
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m_upperLeftWidget.DrawWidget<BillboardType>( ref m_billboardType, this, OnWidgetUpdate );
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}
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private readonly Action<ParentNode> OnWidgetUpdate = ( x ) =>
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{
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x.SetAdditonalTitleText( string.Format( Constants.SubTitleTypeFormatStr, ( x as BillboardNode ).Type ) );
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};
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public override void DrawProperties()
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{
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base.DrawProperties();
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NodeUtils.DrawPropertyGroup( ref m_propertiesFoldout, Constants.ParameterLabelStr, () =>
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{
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EditorGUI.BeginChangeCheck();
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m_billboardType = (BillboardType)EditorGUILayoutEnumPopup( BillboardOpHelper.BillboardTypeStr, m_billboardType );
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if( EditorGUI.EndChangeCheck() )
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{
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SetAdditonalTitleText( string.Format( Constants.SubTitleTypeFormatStr, m_billboardType ) );
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}
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m_rotationIndependent = EditorGUILayoutToggle( BillboardOpHelper.BillboardRotIndStr, m_rotationIndependent );
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} );
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EditorGUILayout.HelpBox( WarningMessage, MessageType.Warning );
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}
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public override string GenerateShaderForOutput( int outputId, ref MasterNodeDataCollector dataCollector, bool ignoreLocalvar )
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{
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if( dataCollector.IsFragmentCategory )
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{
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UIUtils.ShowMessage( UniqueId, ErrorMessage,MessageSeverity.Error );
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return m_outputPorts[0].ErrorValue;
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}
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if( m_outputPorts[ 0 ].IsLocalValue( dataCollector.PortCategory ) )
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return m_outputPorts[ 0 ].ErrorValue;
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m_outputPorts[ 0 ].SetLocalValue( "0", dataCollector.PortCategory );
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string vertexPosValue = dataCollector.IsTemplate ? dataCollector.TemplateDataCollectorInstance.GetVertexPosition( WirePortDataType.OBJECT, CurrentPrecisionType ) : "v.vertex";
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string vertexNormalValue = dataCollector.IsTemplate ? dataCollector.TemplateDataCollectorInstance.GetVertexNormal( CurrentPrecisionType ) : "v.normal";
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bool vertexIsFloat3 = false;
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if( dataCollector.IsTemplate )
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{
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InterpDataHelper info = dataCollector.TemplateDataCollectorInstance.GetInfo( TemplateInfoOnSematics.POSITION );
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if( info != null )
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{
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vertexIsFloat3 = info.VarType == WirePortDataType.FLOAT3;
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}
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}
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BillboardOpHelper.FillDataCollector( ref dataCollector, m_billboardType, m_rotationIndependent, vertexPosValue, vertexNormalValue, vertexIsFloat3 );
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return "0";
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}
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public override void ReadFromString( ref string[] nodeParams )
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{
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base.ReadFromString( ref nodeParams );
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m_billboardType = (BillboardType)Enum.Parse( typeof( BillboardType ), GetCurrentParam( ref nodeParams ) );
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m_rotationIndependent = Convert.ToBoolean( GetCurrentParam( ref nodeParams ) );
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}
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public override void WriteToString( ref string nodeInfo, ref string connectionsInfo )
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{
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base.WriteToString( ref nodeInfo, ref connectionsInfo );
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IOUtils.AddFieldValueToString( ref nodeInfo, m_billboardType );
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IOUtils.AddFieldValueToString( ref nodeInfo, m_rotationIndependent );
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SetAdditonalTitleText( string.Format( Constants.SubTitleTypeFormatStr, m_billboardType ) );
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}
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public BillboardType Type { get { return m_billboardType; } }
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}
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}
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