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