*移动amplify shader editor到third party目录

1 files changed, 130 insertions, 0 deletions

diff --git a/Assets/ThirdParty/AmplifyShaderEditor/Plugins/Editor/Nodes/HelperFuncs/CameraDepthFade.cs b/Assets/ThirdParty/AmplifyShaderEditor/Plugins/Editor/Nodes/HelperFuncs/CameraDepthFade.cs
new file mode 100644
index 00000000..e8c9fc58
--- /dev/null
+++ b/Assets/ThirdParty/AmplifyShaderEditor/Plugins/Editor/Nodes/HelperFuncs/CameraDepthFade.cs
@@ -0,0 +1,130 @@
+// Amplify Shader Editor - Visual Shader Editing Tool
+// Copyright (c) Amplify Creations, Lda <info@amplify.pt>
+
+using System;
+namespace AmplifyShaderEditor
+{
+	[Serializable]
+	[NodeAttributes( "Camera Depth Fade", "Camera And Screen", "Outputs a 0 - 1 gradient representing the distance between the surface of this object and camera near plane" )]
+	public sealed class CameraDepthFade : ParentNode
+	{
+		//{0} - Eye Depth
+		//{1} - Offset
+		//{2} - Distance
+		private const string CameraDepthFadeFormat = "(( {0} -_ProjectionParams.y - {1} ) / {2})";
+
+		protected override void CommonInit( int uniqueId )
+		{
+			base.CommonInit( uniqueId );
+			AddInputPort( WirePortDataType.FLOAT3, false, "Vertex Position", -1, MasterNodePortCategory.Fragment, 2 );
+			AddInputPort( WirePortDataType.FLOAT, false, "Length", -1, MasterNodePortCategory.Fragment, 0 );
+			AddInputPort( WirePortDataType.FLOAT, false, "Offset", -1, MasterNodePortCategory.Fragment, 1 );
+			GetInputPortByUniqueId( 0 ).FloatInternalData = 1;
+			AddOutputPort( WirePortDataType.FLOAT, "Out" );
+			m_useInternalPortData = true;
+		}
+
+		public override string GenerateShaderForOutput( int outputId, ref MasterNodeDataCollector dataCollector, bool ignoreLocalvar )
+		{
+			if( m_outputPorts[ 0 ].IsLocalValue( dataCollector.PortCategory ) )
+				return m_outputPorts[ 0 ].LocalValue( dataCollector.PortCategory );
+
+			InputPort vertexPort = GetInputPortByUniqueId( 2 );
+			InputPort lengthPort = GetInputPortByUniqueId( 0 );
+			InputPort offsetPort = GetInputPortByUniqueId( 1 );
+
+			string distance = lengthPort.GeneratePortInstructions( ref dataCollector );
+			string offset = offsetPort.GeneratePortInstructions( ref dataCollector );
+
+			string value = string.Empty;
+			string eyeDepth = string.Empty;
+
+			if( dataCollector.IsTemplate )
+			{
+				if( vertexPort.IsConnected )
+				{
+					string varName = "customSurfaceDepth" + OutputId;
+					GenerateInputInVertex( ref dataCollector, 2, varName, false );
+
+					string formatStr = string.Empty;
+					if( dataCollector.IsSRP )
+						formatStr = "-TransformWorldToView(TransformObjectToWorld({0})).z";
+					else
+						formatStr = "-UnityObjectToViewPos({0}).z";
+
+					string eyeInstruction = string.Format( formatStr, varName );
+					eyeDepth = "customEye" + OutputId;
+					dataCollector.TemplateDataCollectorInstance.RegisterCustomInterpolatedData( eyeDepth, WirePortDataType.FLOAT, CurrentPrecisionType, eyeInstruction );
+				}
+				else
+				{
+					eyeDepth = dataCollector.TemplateDataCollectorInstance.GetEyeDepth( CurrentPrecisionType );
+				}
+
+				value = string.Format( CameraDepthFadeFormat, eyeDepth, offset, distance );
+				RegisterLocalVariable( 0, value, ref dataCollector, "cameraDepthFade" + OutputId );
+				return m_outputPorts[ 0 ].LocalValue( dataCollector.PortCategory );
+			}
+
+			if( dataCollector.PortCategory == MasterNodePortCategory.Vertex || dataCollector.PortCategory == MasterNodePortCategory.Tessellation )
+			{
+				string vertexVarName = string.Empty;
+				if( vertexPort.IsConnected )
+				{
+					vertexVarName = vertexPort.GeneratePortInstructions( ref dataCollector );
+				}
+				else
+				{
+					vertexVarName = Constants.VertexShaderInputStr + ".vertex.xyz";
+				}
+
+				//dataCollector.AddVertexInstruction( "float cameraDepthFade" + UniqueId + " = (( -UnityObjectToViewPos( " + Constants.VertexShaderInputStr + ".vertex.xyz ).z -_ProjectionParams.y - " + offset + " ) / " + distance + ");", UniqueId );
+				value = string.Format( CameraDepthFadeFormat, "-UnityObjectToViewPos( " + vertexVarName + " ).z", offset, distance );
+				RegisterLocalVariable( 0, value, ref dataCollector, "cameraDepthFade" + OutputId );
+				return m_outputPorts[ 0 ].LocalValue( dataCollector.PortCategory );
+			}
+
+			dataCollector.AddToIncludes( UniqueId, Constants.UnityShaderVariables );
+
+			if( dataCollector.TesselationActive )
+			{
+				if( vertexPort.IsConnected )
+				{
+					string vertexValue = vertexPort.GeneratePortInstructions( ref dataCollector );
+					eyeDepth = "customSurfaceDepth" + OutputId;
+					RegisterLocalVariable( 0, string.Format( "-UnityObjectToViewPos( {0} ).z", vertexValue ), ref dataCollector, eyeDepth );
+				}
+				else
+				{
+					eyeDepth = GeneratorUtils.GenerateScreenDepthOnFrag( ref dataCollector, UniqueId, CurrentPrecisionType );
+				}
+			}
+			else
+			{
+
+				if( vertexPort.IsConnected )
+				{
+					string varName = "customSurfaceDepth" + OutputId;
+					GenerateInputInVertex( ref dataCollector, 2, varName, false );
+					dataCollector.AddToInput( UniqueId, varName, WirePortDataType.FLOAT );
+					string vertexInstruction = "-UnityObjectToViewPos( " + varName + " ).z";
+					dataCollector.AddToVertexLocalVariables( UniqueId, Constants.VertexShaderOutputStr + "." + varName + " = " + vertexInstruction + ";" );
+					eyeDepth = Constants.InputVarStr + "." + varName;
+				}
+				else
+				{
+					dataCollector.AddToInput( UniqueId, "eyeDepth", WirePortDataType.FLOAT );
+					string instruction = "-UnityObjectToViewPos( " + Constants.VertexShaderInputStr + ".vertex.xyz ).z";
+					dataCollector.AddToVertexLocalVariables( UniqueId, Constants.VertexShaderOutputStr + ".eyeDepth = " + instruction + ";" );
+					eyeDepth = Constants.InputVarStr + ".eyeDepth";
+				}
+			}
+
+			value = string.Format( CameraDepthFadeFormat, eyeDepth, offset, distance );
+			RegisterLocalVariable( 0, value, ref dataCollector, "cameraDepthFade" + OutputId );
+			//dataCollector.AddToLocalVariables( UniqueId, "float cameraDepthFade" + UniqueId + " = (( " + Constants.InputVarStr + ".eyeDepth -_ProjectionParams.y - "+ offset + " ) / " + distance + ");" );
+
+			return m_outputPorts[ 0 ].LocalValue( dataCollector.PortCategory );
+		}
+	}
+}