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207 lines
7.6 KiB
207 lines
7.6 KiB
using UnityEngine;
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using UnityEditor;
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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( "Texture Transform", "Textures", "Gives access to texture tiling and offset as set on the material inspector" )]
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public sealed class TextureTransformNode : ParentNode
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{
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private readonly string[] Dummy = { string.Empty };
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[SerializeField]
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private int m_referenceSamplerId = -1;
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[SerializeField]
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private int m_referenceNodeId = -1;
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[SerializeField]
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private TexturePropertyNode m_inputReferenceNode = null;
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private TexturePropertyNode m_referenceNode = null;
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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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AddInputPort( WirePortDataType.SAMPLER2D, false, "Tex" );
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m_inputPorts[ 0 ].CreatePortRestrictions( WirePortDataType.SAMPLER1D, WirePortDataType.SAMPLER2D, WirePortDataType.SAMPLER3D, WirePortDataType.SAMPLERCUBE, WirePortDataType.OBJECT );
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AddOutputPort( WirePortDataType.FLOAT2, "Tiling" );
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AddOutputPort( WirePortDataType.FLOAT2, "Offset" );
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m_textLabelWidth = 80;
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m_autoWrapProperties = true;
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m_hasLeftDropdown = true;
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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 OnInputPortConnected( int portId, int otherNodeId, int otherPortId, bool activateNode = true )
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{
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base.OnInputPortConnected( portId, otherNodeId, otherPortId, activateNode );
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m_inputReferenceNode = m_inputPorts[ 0 ].GetOutputNode() as TexturePropertyNode;
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}
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public override void OnInputPortDisconnected( int portId )
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{
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base.OnInputPortDisconnected( portId );
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m_inputReferenceNode = null;
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}
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void UpdateTitle()
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{
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if( m_inputReferenceNode != null )
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{
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m_additionalContent.text = string.Format( Constants.PropertyValueLabel, m_inputReferenceNode.PropertyInspectorName );
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}
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else if( m_referenceSamplerId > -1 && m_referenceNode != null )
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{
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m_additionalContent.text = string.Format( Constants.PropertyValueLabel, m_referenceNode.PropertyInspectorName );
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}
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else
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{
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m_additionalContent.text = string.Empty;
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}
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m_sizeIsDirty = true;
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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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EditorGUI.BeginChangeCheck();
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string[] arr = UIUtils.TexturePropertyNodeArr();
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bool guiEnabledBuffer = GUI.enabled;
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if( arr != null && arr.Length > 0 )
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{
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GUI.enabled = true && ( !m_inputPorts[ 0 ].IsConnected );
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m_referenceSamplerId = EditorGUILayoutPopup( Constants.AvailableReferenceStr, m_referenceSamplerId, arr );
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}
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else
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{
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m_referenceSamplerId = -1;
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GUI.enabled = false;
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m_referenceSamplerId = EditorGUILayoutPopup( Constants.AvailableReferenceStr, m_referenceSamplerId, Dummy );
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}
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GUI.enabled = guiEnabledBuffer;
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if( EditorGUI.EndChangeCheck() )
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{
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m_referenceNode = UIUtils.GetTexturePropertyNode( m_referenceSamplerId );
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m_referenceNodeId = m_referenceNode.UniqueId;
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UpdateTitle();
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}
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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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base.GenerateShaderForOutput( outputId, ref dataCollector, ignoreLocalvar );
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m_inputPorts[ 0 ].GeneratePortInstructions( ref dataCollector );
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string texTransform = string.Empty;
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if( m_inputPorts[ 0 ].IsConnected )
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{
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texTransform = m_inputPorts[ 0 ].GeneratePortInstructions( ref dataCollector ) + "_ST";
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}
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else if( m_referenceNode != null )
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{
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m_referenceNode.BaseGenerateShaderForOutput( outputId, ref dataCollector, ignoreLocalvar );
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texTransform = m_referenceNode.PropertyName + "_ST";
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}
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else
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{
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texTransform = "_ST";
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UIUtils.ShowMessage( "Please specify a texture sample on the Texture Transform Size node", MessageSeverity.Warning );
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}
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dataCollector.AddToUniforms( UniqueId, "uniform float4 " + texTransform + ";" );
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switch( outputId )
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{
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case 0: return ( texTransform + ".xy" );
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case 1: return ( texTransform + ".zw" );
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}
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return string.Empty;
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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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{
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string[] arr = UIUtils.TexturePropertyNodeArr();
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bool guiEnabledBuffer = GUI.enabled;
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if( arr != null && arr.Length > 0 )
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{
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GUI.enabled = true && ( !m_inputPorts[ 0 ].IsConnected );
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m_referenceSamplerId = m_upperLeftWidget.DrawWidget( this, m_referenceSamplerId, arr );
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}
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else
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{
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m_referenceSamplerId = -1;
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GUI.enabled = false;
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m_referenceSamplerId = m_upperLeftWidget.DrawWidget( this, m_referenceSamplerId, Dummy );
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}
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GUI.enabled = guiEnabledBuffer;
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}
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if( EditorGUI.EndChangeCheck() )
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{
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m_referenceNode = UIUtils.GetTexturePropertyNode( m_referenceSamplerId );
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m_referenceNodeId = m_referenceNode.UniqueId;
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UpdateTitle();
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}
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if( m_referenceNode == null && m_referenceNodeId > -1 )
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{
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m_referenceNodeId = -1;
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m_referenceSamplerId = -1;
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UpdateTitle();
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}
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}
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public override void RefreshExternalReferences()
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{
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base.RefreshExternalReferences();
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m_referenceNode = UIUtils.GetNode( m_referenceNodeId ) as TexturePropertyNode;
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m_referenceSamplerId = UIUtils.GetTexturePropertyNodeRegisterId( m_referenceNodeId );
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UpdateTitle();
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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_referenceNodeId = Convert.ToInt32( 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_referenceNodeId );
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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_referenceNode = null;
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m_inputReferenceNode = null;
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m_upperLeftWidget = null;
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}
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}
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}
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