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54 lines
2.3 KiB
54 lines
2.3 KiB
// Amplify Shader Editor - Visual Shader Editing Tool
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// Copyright (c) Amplify Creations, Lda <info@amplify.pt>
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//
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// Custom Node Pixelate UV
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// Donated by The Four Headed Cat - @fourheadedcat
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using UnityEngine;
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using UnityEditor;
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using System;
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namespace AmplifyShaderEditor
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{
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[Serializable]
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[NodeAttributes( "Pixelate UV", "UV Coordinates", "Pixelate Texture Modifying UV.", null, KeyCode.None, true, false, null, null, "The Four Headed Cat - @fourheadedcat" )]
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public sealed class TFHCPixelate : ParentNode
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{
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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.FLOAT2, true, "UV" );
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AddInputPort( WirePortDataType.FLOAT, false, "Pixels X" );
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AddInputPort( WirePortDataType.FLOAT, false, "Pixels Y" );
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AddOutputPort( WirePortDataType.FLOAT2, "Out" );
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m_useInternalPortData = true;
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m_previewShaderGUID = "e2f7e3c513ed18340868b8cbd0d85cfb";
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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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EditorGUILayout.HelpBox ("Pixelate UV.\n\n - UV is the Texture Coordinates to pixelate.\n - Pixels X is the number of horizontal pixels\n - Pixels Y is the number of vertical pixels.", MessageType.None);
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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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string uv = m_inputPorts[ 0 ].GeneratePortInstructions( ref dataCollector );
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string PixelCount_X = m_inputPorts[ 1 ].GeneratePortInstructions( ref dataCollector );
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string PixelCount_Y = m_inputPorts[ 2 ].GeneratePortInstructions( ref dataCollector );
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string pixelWidth = "float pixelWidth" + OutputId + " = 1.0f / " + PixelCount_X + ";";
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string pixelHeight = "float pixelHeight" + OutputId + " = 1.0f / " + PixelCount_Y + ";";
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string pixelatedUV = "half2 pixelateduv" + OutputId + " = half2((int)(" + uv + ".x / pixelWidth" + OutputId + ") * pixelWidth" + OutputId + ", (int)(" + uv + ".y / pixelHeight" + OutputId + ") * pixelHeight" + OutputId + ");";
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string result = "pixelateduv" + OutputId;
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dataCollector.AddLocalVariable( UniqueId, pixelWidth );
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dataCollector.AddLocalVariable( UniqueId, pixelHeight );
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dataCollector.AddLocalVariable( UniqueId, pixelatedUV );
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return GetOutputVectorItem( 0, outputId, result);
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}
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}
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}
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