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160 lines
4.2 KiB
160 lines
4.2 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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namespace AmplifyShaderEditor
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{
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public enum CoordinateSpaces
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{
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Tangent,
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Local,
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World,
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View,
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Clip,
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Screen
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}
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[Serializable]
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[NodeAttributes( "Transform Vector", "Math Operators", "Transforma a vector into another", null, KeyCode.None, false )]
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public sealed class TransformVectorOpNode : ParentNode
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{
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[SerializeField]
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private CoordinateSpaces m_source = CoordinateSpaces.Tangent;
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[SerializeField]
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private CoordinateSpaces m_destination = CoordinateSpaces.World;
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private const string InputTangentrStr = "float4 tangent: TANGENT";
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private const string ColorValueStr = ".tangent";
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private const string InputNormalStr = "float3 normal : NORMAL";
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private const string NormalValueStr = ".normal";
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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.FLOAT4, false, Constants.EmptyPortValue );
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AddOutputPort( WirePortDataType.FLOAT4, Constants.EmptyPortValue );
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m_useInternalPortData = true;
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}
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void AddTangentInfo( ref MasterNodeDataCollector dataCollector )
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{
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dataCollector.AddToInput( UniqueId, InputTangentrStr, true );
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dataCollector.AddToInput( UniqueId, InputTangentrStr, true );
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dataCollector.AddToInput( UniqueId, InputNormalStr, true );
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dataCollector.AddToLocalVariables( UniqueId, "float3 binormal = cross( normalize( v.normal ), normalize( v.tangent.xyz ) ) * v.tangent.w;" );
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dataCollector.AddToLocalVariables( UniqueId, "float3x3 rotation = float3x3( v.tangent.xyz, binormal, v.normal );" );
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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 ( !InputPorts[ 0 ].IsConnected )
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//{
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// return UIUtils.NoConnection( this );
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//}
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string value = m_inputPorts[ 0 ].GeneratePortInstructions( ref dataCollector );
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dataCollector.AddToIncludes( UniqueId, Constants.UnityShaderVariables );
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switch ( m_source )
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{
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case CoordinateSpaces.Tangent:
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{
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AddTangentInfo( ref dataCollector );
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switch ( m_destination )
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{
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case CoordinateSpaces.Tangent:
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{
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return value;
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}
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//case eCoordinateSpaces.Local:
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//{
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//}
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//case eCoordinateSpaces.World:
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//{
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//}
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//case eCoordinateSpaces.View:
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//{
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//}
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}
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}
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break;
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case CoordinateSpaces.Local:
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{
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switch ( m_destination )
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{
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case CoordinateSpaces.Tangent:
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{
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AddTangentInfo( ref dataCollector );
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return "float4(mul( rotation , " + value + ".xyz ),1)";
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}
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case CoordinateSpaces.Local:
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{
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return value;
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}
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case CoordinateSpaces.World:
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{
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return "mul( _Object2World , " + value + " )";
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}
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case CoordinateSpaces.View:
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{
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return "mul( UNITY_MATRIX_MV , " + value + " )";
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}
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}
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}
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break;
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case CoordinateSpaces.World:
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{
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switch ( m_destination )
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{
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//case eCoordinateSpaces.Tangent:
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//{
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//}
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case CoordinateSpaces.Local:
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{
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return "mul( _World2Object , " + value + " )";
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}
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case CoordinateSpaces.World:
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{
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return value;
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}
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case CoordinateSpaces.View:
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{
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return "mul( UNITY_MATRIX_V , " + value + " )";
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}
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}
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}
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break;
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case CoordinateSpaces.View:
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{
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UIUtils.ShowMessage( "View as Source is not supported", MessageSeverity.Warning );
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return value;
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}
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}
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return UIUtils.UnknownError( this );
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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_source = ( CoordinateSpaces ) Enum.Parse( typeof( CoordinateSpaces ), GetCurrentParam( ref nodeParams ) );
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m_destination = ( CoordinateSpaces ) Enum.Parse( typeof( CoordinateSpaces ), 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_source );
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IOUtils.AddFieldValueToString( ref nodeInfo, m_destination );
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}
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}
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}
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