128 lines
4.7 KiB
C#
128 lines
4.7 KiB
C#
// Amplify Shader Editor - Visual Shader Editing Tool
|
|
// Copyright (c) Amplify Creations, Lda <info@amplify.pt>
|
|
|
|
using UnityEngine;
|
|
using UnityEditor;
|
|
using System;
|
|
namespace AmplifyShaderEditor
|
|
{
|
|
[Serializable]
|
|
[NodeAttributes( "Linear To Gamma", "Image Effects", "Converts color from linear space to gamma space" )]
|
|
public sealed class LinearToGammaNode : HelperParentNode
|
|
{
|
|
//[SerializeField]
|
|
//private bool m_exact = false;
|
|
|
|
//private readonly static GUIContent LGExactContent = new GUIContent( "Exact Conversion", "Uses a precise version of the conversion, it's more expensive and often not needed." );
|
|
|
|
public readonly static string[] ModeListStr = { "Fast Linear to sRGB", "Exact Linear to sRGB" };
|
|
public readonly static int[] ModeListInt = { 0, 1 };
|
|
|
|
public readonly static string[] ModeListStrLW = { "Fast Linear to sRGB", "Exact Linear to sRGB", "Linear to Gamma 2.0", "Linear to Gamma 2.2" };
|
|
public readonly static int[] ModeListIntLW = { 0, 1, 2, 3 };
|
|
|
|
[SerializeField]
|
|
public int m_selectedMode = 0;
|
|
|
|
protected override void CommonInit( int uniqueId )
|
|
{
|
|
base.CommonInit( uniqueId );
|
|
m_funcType = "LinearToGammaSpace";
|
|
m_inputPorts[ 0 ].ChangeType( WirePortDataType.FLOAT3, false );
|
|
m_inputPorts[ 0 ].Name = "RGB";
|
|
m_outputPorts[ 0 ].ChangeType( WirePortDataType.FLOAT3, false );
|
|
m_autoWrapProperties = true;
|
|
m_previewShaderGUID = "9027c408b928c5c4d8b450712049d541";
|
|
m_textLabelWidth = 120;
|
|
}
|
|
|
|
protected override void OnUniqueIDAssigned()
|
|
{
|
|
base.OnUniqueIDAssigned();
|
|
m_localVarName = "linearToGamma" + OutputId;
|
|
}
|
|
|
|
public override void DrawProperties()
|
|
{
|
|
base.DrawProperties();
|
|
if( ContainerGraph.IsSRP )
|
|
{
|
|
m_selectedMode = EditorGUILayoutIntPopup( "Mode", m_selectedMode, ModeListStrLW, ModeListIntLW );
|
|
EditorGUILayout.HelpBox( "Fast Linear: fast approximation from Linear to sRGB\n\nExact Linear: a more expensive but exact calculation from Linear to sRGB.\n\nLinear 2.0: crude approximation from Linear to Gamma using a power of 1/2.0 gamma value\n\nLinear 2.2: an approximation from Linear to Gamma using a power of 1/2.2 gamma value", MessageType.None );
|
|
}
|
|
else
|
|
{
|
|
m_selectedMode = EditorGUILayoutIntPopup( "Mode", m_selectedMode, ModeListStr, ModeListInt );
|
|
EditorGUILayout.HelpBox( "Fast Linear: fast approximation from Linear to sRGB\n\nExact Linear: a more expensive but exact calculation from Linear to sRGB.", MessageType.None );
|
|
}
|
|
}
|
|
|
|
public override string GenerateShaderForOutput( int outputId, ref MasterNodeDataCollector dataCollector, bool ignoreLocalvar )
|
|
{
|
|
string result = m_inputPorts[ 0 ].GeneratePortInstructions( ref dataCollector );
|
|
|
|
if( !dataCollector.IsSRP )
|
|
{
|
|
m_selectedMode = Mathf.Min( m_selectedMode, 1 );
|
|
|
|
if( m_selectedMode == 1 )
|
|
{
|
|
dataCollector.AddLocalVariable( UniqueId, "half3 " + m_localVarName + " = " + result + ";" );
|
|
dataCollector.AddLocalVariable( UniqueId, m_localVarName + " = half3( LinearToGammaSpaceExact(" + m_localVarName + ".r), LinearToGammaSpaceExact(" + m_localVarName + ".g), LinearToGammaSpaceExact(" + m_localVarName + ".b) );" );
|
|
return m_localVarName;
|
|
}
|
|
return base.GenerateShaderForOutput( outputId, ref dataCollector, ignoreLocalvar );
|
|
}
|
|
else
|
|
{
|
|
dataCollector.AddToIncludes( UniqueId, TemplateHelperFunctions.CoreCommonLib );
|
|
dataCollector.AddToIncludes( UniqueId, TemplateHelperFunctions.CoreColorLib );
|
|
switch( m_selectedMode )
|
|
{
|
|
default:
|
|
case 0:
|
|
m_funcLWFormatOverride = "FastLinearToSRGB( {0} )";
|
|
m_funcHDFormatOverride = "FastLinearToSRGB( {0} )";
|
|
break;
|
|
case 1:
|
|
m_funcLWFormatOverride = "LinearToSRGB( {0} )";
|
|
m_funcHDFormatOverride = "LinearToSRGB( {0} )";
|
|
break;
|
|
case 2:
|
|
m_funcLWFormatOverride = "LinearToGamma20( {0} )";
|
|
m_funcHDFormatOverride = "LinearToGamma20( {0} )";
|
|
break;
|
|
case 3:
|
|
m_funcLWFormatOverride = "LinearToGamma22( {0} )";
|
|
m_funcHDFormatOverride = "LinearToGamma22( {0} )";
|
|
break;
|
|
}
|
|
|
|
return base.GenerateShaderForOutput( outputId, ref dataCollector, ignoreLocalvar );
|
|
}
|
|
}
|
|
|
|
public override void WriteToString( ref string nodeInfo, ref string connectionsInfo )
|
|
{
|
|
base.WriteToString( ref nodeInfo, ref connectionsInfo );
|
|
IOUtils.AddFieldValueToString( ref nodeInfo, m_selectedMode );
|
|
}
|
|
|
|
public override void ReadFromString( ref string[] nodeParams )
|
|
{
|
|
base.ReadFromString( ref nodeParams );
|
|
if( UIUtils.CurrentShaderVersion() > 11003 && UIUtils.CurrentShaderVersion() <= 14503 )
|
|
{
|
|
bool fast = Convert.ToBoolean( GetCurrentParam( ref nodeParams ) );
|
|
if( fast )
|
|
m_selectedMode = 1;
|
|
}
|
|
|
|
if( UIUtils.CurrentShaderVersion() > 14503 )
|
|
{
|
|
m_selectedMode = Convert.ToInt32( GetCurrentParam( ref nodeParams ) );
|
|
}
|
|
}
|
|
}
|
|
}
|