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235 lines
7.7 KiB
235 lines
7.7 KiB
// 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( "Vertex TexCoord", "Vertex Data", "Vertex texture coordinates, can be used in both local vertex offset and fragment outputs" )]
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public sealed class TexCoordVertexDataNode : VertexDataNode
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{
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[SerializeField]
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private int m_texcoordSize = 2;
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[SerializeField]
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private int m_index = 0;
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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_currentVertexData = "texcoord";
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ChangeOutputProperties( 0, "UV", WirePortDataType.FLOAT2, false );
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m_outputPorts[ 1 ].Name = "U";
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m_outputPorts[ 2 ].Name = "V";
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m_outputPorts[ 3 ].Visible = false;
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m_outputPorts[ 4 ].Visible = false;
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m_outputPorts[ 3 ].Name = "W";
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m_outputPorts[ 4 ].Name = "T";
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m_autoWrapProperties = true;
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m_hasLeftDropdown = true;
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m_previewShaderGUID = "6c1bee77276896041bbb73b1b9e7f8ac";
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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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m_texcoordSize = EditorGUILayoutIntPopup( Constants.AvailableUVSizesLabel, m_texcoordSize, Constants.AvailableUVSizesStr, Constants.AvailableUVSizes );
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if( EditorGUI.EndChangeCheck() )
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{
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UpdateOutput();
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}
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EditorGUI.BeginChangeCheck();
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m_index = EditorGUILayoutIntPopup( Constants.AvailableUVChannelLabel, m_index, Constants.AvailableUVSetsStr, Constants.AvailableUVChannels );
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if( EditorGUI.EndChangeCheck() )
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{
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m_currentVertexData = ( m_index == 0 ) ? "texcoord" : "texcoord" + Constants.AvailableUVChannelsStr[ m_index ];
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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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if( m_dropdownEditing )
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{
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EditorGUI.BeginChangeCheck();
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m_texcoordSize = EditorGUIIntPopup( m_dropdownRect, m_texcoordSize, Constants.AvailableUVSizesStr, Constants.AvailableUVSizes, UIUtils.PropertyPopUp );
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if( EditorGUI.EndChangeCheck() )
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{
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UpdateOutput();
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m_dropdownEditing = false;
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}
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}
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}
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private void UpdateOutput()
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{
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if( m_texcoordSize == 3 )
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{
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m_outputPorts[ 0 ].ChangeType( WirePortDataType.FLOAT3, false );
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m_outputPorts[ 0 ].Name = "UVW";
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m_outputPorts[ 3 ].Visible = true;
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m_outputPorts[ 4 ].Visible = false;
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}
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else if( m_texcoordSize == 4 )
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{
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m_outputPorts[ 0 ].ChangeType( WirePortDataType.FLOAT4, false );
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m_outputPorts[ 0 ].Name = "UVWT";
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m_outputPorts[ 3 ].Visible = true;
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m_outputPorts[ 4 ].Visible = true;
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}
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else
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{
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m_texcoordSize = 2;
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m_outputPorts[ 0 ].ChangeType( WirePortDataType.FLOAT2, false );
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m_outputPorts[ 0 ].Name = "UV";
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m_outputPorts[ 3 ].Visible = false;
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m_outputPorts[ 4 ].Visible = false;
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}
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m_sizeIsDirty = true;
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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.IsTemplate )
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{
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if( !dataCollector.TemplateDataCollectorInstance.HasUV( m_index ) )
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{
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dataCollector.TemplateDataCollectorInstance.RegisterUV( m_index, m_outputPorts[ 0 ].DataType );
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}
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if( dataCollector.TemplateDataCollectorInstance.HasUV( m_index ) )
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{
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InterpDataHelper info = dataCollector.TemplateDataCollectorInstance.GetUVInfo( m_index );
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if( outputId == 0 )
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{
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return dataCollector.TemplateDataCollectorInstance.GetUVName( m_index, m_outputPorts[ 0 ].DataType );
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}
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else if( outputId <= TemplateHelperFunctions.DataTypeChannelUsage[ info.VarType ] )
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{
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return GetOutputVectorItem( 0, outputId, info.VarName );
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}
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Debug.LogWarning( "Attempting to access inexisting UV channel" );
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}
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else
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{
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Debug.LogWarning( "Attempting to access non-registered UV" );
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}
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return "0";
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}
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if( dataCollector.PortCategory == MasterNodePortCategory.Fragment || dataCollector.PortCategory == MasterNodePortCategory.Debug )
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{
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if( m_texcoordSize > 2 )
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dataCollector.UsingHigherSizeTexcoords = true;
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}
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WirePortDataType size = (WirePortDataType)( 1 << ( m_texcoordSize + 1 ) );
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string texcoords = GeneratorUtils.GenerateAutoUVs( ref dataCollector, UniqueId, m_index, null, size );
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return GetOutputVectorItem( 0, outputId, texcoords );
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}
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/// <summary>
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/// Generates UV properties and uniforms and returns the varible name to use in the fragment shader
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/// </summary>
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/// <param name="dataCollector"></param>
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/// <param name="uniqueId"></param>
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/// <param name="index"></param>
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/// <returns>frag variable name</returns>
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static public string GenerateFragUVs( ref MasterNodeDataCollector dataCollector, int uniqueId, int index, string propertyName = null, WirePortDataType size = WirePortDataType.FLOAT2 )
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{
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string dummyPropUV = "_texcoord" + ( index > 0 ? ( index + 1 ).ToString() : "" );
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string dummyUV = "uv" + ( index > 0 ? ( index + 1 ).ToString() : "" ) + dummyPropUV;
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dataCollector.AddToProperties( uniqueId, "[HideInInspector] " + dummyPropUV + "( \"\", 2D ) = \"white\" {}", 100 );
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dataCollector.AddToInput( uniqueId, dummyUV, size );
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string result = Constants.InputVarStr + "." + dummyUV;
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if( !string.IsNullOrEmpty( propertyName ) )
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{
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dataCollector.AddToUniforms( uniqueId, "uniform float4 " + propertyName + "_ST;" );
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dataCollector.AddToLocalVariables( uniqueId, PrecisionType.Float, size, "uv" + propertyName, result + " * " + propertyName + "_ST.xy + " + propertyName + "_ST.zw" );
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result = "uv" + propertyName;
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}
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return result;
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}
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static public string GenerateVertexUVs( ref MasterNodeDataCollector dataCollector, int uniqueId, int index, string propertyName = null, WirePortDataType size = WirePortDataType.FLOAT2 )
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{
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string result = Constants.VertexShaderInputStr + ".texcoord";
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if( index > 0 )
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{
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result += index.ToString();
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}
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switch( size )
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{
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default:
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case WirePortDataType.FLOAT2:
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{
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result += ".xy";
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}
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break;
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case WirePortDataType.FLOAT3:
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{
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result += ".xyz";
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}
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break;
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case WirePortDataType.FLOAT4: break;
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}
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if( !string.IsNullOrEmpty( propertyName ) )
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{
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dataCollector.AddToUniforms( uniqueId, "uniform float4 " + propertyName + "_ST;" );
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dataCollector.AddToVertexLocalVariables( uniqueId, UIUtils.WirePortToCgType( size ) + " uv" + propertyName + " = " + Constants.VertexShaderInputStr + ".texcoord" + ( index > 0 ? index.ToString() : string.Empty ) + " * " + propertyName + "_ST.xy + " + propertyName + "_ST.zw;" );
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result = "uv" + propertyName;
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}
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return result;
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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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if( UIUtils.CurrentShaderVersion() > 2502 )
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{
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m_index = Convert.ToInt32( GetCurrentParam( ref nodeParams ) );
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}
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if( UIUtils.CurrentShaderVersion() > 5111 )
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{
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m_texcoordSize = Convert.ToInt32( GetCurrentParam( ref nodeParams ) );
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UpdateOutput();
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}
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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_index );
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IOUtils.AddFieldValueToString( ref nodeInfo, m_texcoordSize );
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}
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public override void PropagateNodeData( NodeData nodeData, ref MasterNodeDataCollector dataCollector )
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{
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base.PropagateNodeData( nodeData, ref dataCollector );
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if( dataCollector.IsTemplate )
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{
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dataCollector.TemplateDataCollectorInstance.SetUVUsage( m_index, m_texcoordSize );
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}
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else if( m_index > 3 )
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{
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dataCollector.AddCustomAppData( string.Format( TemplateHelperFunctions.TexUVFullSemantic, m_index ) );
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}
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}
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}
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}
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