You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
78 lines
3.3 KiB
78 lines
3.3 KiB
// Amplify Shader Editor - Visual Shader Editing Tool
|
|
// Copyright (c) Amplify Creations, Lda <info@amplify.pt>
|
|
using System;
|
|
|
|
namespace AmplifyShaderEditor
|
|
{
|
|
[Serializable]
|
|
[NodeAttributes( "Scale And Offset", "Math Operators", "Scales and offsets an input value\n( ( <b>Value</b> * <b>Scale</b> ) + <b>Offset</b> )" )]
|
|
public sealed class ScaleAndOffsetNode : ParentNode
|
|
{
|
|
private const string ScaleOffsetOpStr = "({0}*{1} + {2})";
|
|
protected override void CommonInit( int uniqueId )
|
|
{
|
|
base.CommonInit( uniqueId );
|
|
AddInputPort( WirePortDataType.FLOAT, false, Constants.EmptyPortValue );
|
|
AddInputPort( WirePortDataType.FLOAT, false, "Scale" );
|
|
m_inputPorts[ 1 ].FloatInternalData = 1;
|
|
AddInputPort( WirePortDataType.FLOAT, false, "Offset" );
|
|
AddOutputPort( WirePortDataType.FLOAT, " " );
|
|
m_useInternalPortData = true;
|
|
m_previewShaderGUID = "a1f1053d4d9c3be439e0382038b74771";
|
|
}
|
|
|
|
public override void OnInputPortConnected( int portId, int otherNodeId, int otherPortId, bool activateNode = true )
|
|
{
|
|
base.OnInputPortConnected( portId, otherNodeId, otherPortId, activateNode );
|
|
UpdateConnection( portId );
|
|
}
|
|
|
|
public override void OnConnectedOutputNodeChanges( int inputPortId, int otherNodeId, int otherPortId, string name, WirePortDataType type )
|
|
{
|
|
base.OnConnectedOutputNodeChanges( inputPortId, otherNodeId, otherPortId, name, type );
|
|
UpdateConnection( inputPortId );
|
|
}
|
|
|
|
public override void OnInputPortDisconnected( int portId )
|
|
{
|
|
base.OnInputPortDisconnected( portId );
|
|
m_inputPorts[ portId ].ChangeType( WirePortDataType.FLOAT, false );
|
|
if( portId == 0 )
|
|
{
|
|
m_outputPorts[ 0 ].ChangeType( WirePortDataType.FLOAT, false );
|
|
}
|
|
}
|
|
|
|
void UpdateConnection( int portId )
|
|
{
|
|
if( portId == 0 )
|
|
{
|
|
m_inputPorts[ 0 ].MatchPortToConnection();
|
|
m_outputPorts[ 0 ].ChangeType( m_inputPorts[ 0 ].DataType, false );
|
|
}
|
|
else
|
|
{
|
|
WirePortDataType newDataType = m_inputPorts[ portId ].ConnectionType() == WirePortDataType.FLOAT ? WirePortDataType.FLOAT : m_outputPorts[ 0 ].DataType;
|
|
m_inputPorts[ portId ].ChangeType( newDataType, false );
|
|
}
|
|
}
|
|
|
|
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 );
|
|
|
|
string value = m_inputPorts[ 0 ].GeneratePortInstructions( ref dataCollector );
|
|
|
|
// If scale or offset ports are floats then there's no need to cast them to any other type since they can be multiplied with everything
|
|
WirePortDataType scaleType = ( m_inputPorts[ 1 ].ConnectionType() == WirePortDataType.FLOAT ) ? WirePortDataType.FLOAT : m_outputPorts[ 0 ].DataType;
|
|
string scale = m_inputPorts[ 1 ].GenerateShaderForOutput( ref dataCollector, scaleType, ignoreLocalvar , true );
|
|
|
|
WirePortDataType offsetType = ( m_inputPorts[ 2 ].ConnectionType() == WirePortDataType.FLOAT ) ? WirePortDataType.FLOAT : m_outputPorts[ 0 ].DataType;
|
|
string offset = m_inputPorts[ 2 ].GenerateShaderForOutput( ref dataCollector, offsetType, ignoreLocalvar, true );
|
|
|
|
string result = string.Format( ScaleOffsetOpStr, value, scale, offset );
|
|
return CreateOutputLocalVariable( 0, result, ref dataCollector );
|
|
}
|
|
}
|
|
}
|