118 lines
3.8 KiB
C#
118 lines
3.8 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 UnityEditor;
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using UnityEngine;
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namespace AmplifyShaderEditor
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{
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[Serializable]
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[NodeAttributes( "Position", "Surface Data", "Surface position. Absolute World-space, by default.\n\n" +
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"Object: Object-space position, local to object.\n\n" +
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"World: Absolute world position, global to scene origin.\n\n" +
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"Relative World: Camera-relative world position.\n\n" +
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"View: View-space position.\n\n" )]
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public sealed class PositionNode : SurfaceShaderINParentNode
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{
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public enum Space
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{
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Object,
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World,
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RelativeWorld,
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View
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}
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private readonly string[] m_outputSpaceStr = { "Object", "World", "Relative World", "View" };
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[SerializeField]
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private int m_outputSpaceIndex = ( int )Space.World;
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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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m_currentInput = SurfaceInputs.WORLD_POS;
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m_drawPreviewAsSphere = true;
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m_previewShaderGUID = "62a28fcb1f1dd5640a572771eb121a3b";
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m_hasLeftDropdown = true;
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m_textLabelWidth = 65;
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m_autoWrapProperties = true;
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InitialSetup();
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m_previewMaterialPassId = ( int )m_outputSpaceIndex;
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ConfigureHeader();
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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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EditorGUI.BeginChangeCheck();
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m_outputSpaceIndex = m_upperLeftWidget.DrawWidget( this, m_outputSpaceIndex, m_outputSpaceStr );
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if ( EditorGUI.EndChangeCheck() )
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{
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ConfigureHeader();
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}
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}
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public override void DrawProperties()
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{
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EditorGUI.BeginChangeCheck();
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m_outputSpaceIndex = EditorGUILayoutPopup( "Mode", m_outputSpaceIndex, m_outputSpaceStr );
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if ( EditorGUI.EndChangeCheck() )
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{
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ConfigureHeader();
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}
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if ( m_outputSpaceIndex == ( int )Space.World )
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{
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EditorGUILayout.HelpBox( "World refers to absolute World-Space coordinates, in full coordinates around the origin.", MessageType.Info );
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}
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else if ( m_outputSpaceIndex == ( int )Space.RelativeWorld )
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{
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EditorGUILayout.HelpBox( "Relative World refers to Camera-relative World-space, where values are kept relative to the Camera position, making them less prone to the numerical precision degradation of large floating point values.", MessageType.Info );
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}
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}
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void ConfigureHeader()
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{
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SetAdditonalTitleText( string.Format( Constants.SubTitleModeFormatStr, m_outputSpaceStr[ m_outputSpaceIndex ] ) );
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m_previewMaterialPassId = m_outputSpaceIndex;
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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.PortCategory == MasterNodePortCategory.Tessellation )
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{
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UIUtils.ShowNoVertexModeNodeMessage( this );
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return string.Format( "{0}( 0, 0, 0 )", UIUtils.PrecisionWirePortToCgType( CurrentPrecisionType, WirePortDataType.FLOAT3 ) );
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}
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if ( dataCollector.IsTemplate )
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{
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string varName = dataCollector.TemplateDataCollectorInstance.GetPosition( ( Space )m_outputSpaceIndex );
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return GetOutputVectorItem( 0, outputId, varName );
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}
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else
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{
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string worldPosition = GeneratorUtils.GeneratePosition( ref dataCollector, UniqueId, ( Space )m_outputSpaceIndex );
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return GetOutputVectorItem( 0, outputId, worldPosition );
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}
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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_outputSpaceIndex = Convert.ToInt32( GetCurrentParam( ref nodeParams ) );
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ConfigureHeader();
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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_outputSpaceIndex );
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}
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}
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}
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