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50 行
1.3 KiB
50 行
1.3 KiB
using UnityEngine;
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namespace UnityEditor.Graphs.Material
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{
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[Title("Math/Add Node")]
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class AddNode : FunctionMultiInput, IGeneratesFunction
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{
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[SerializeField]
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private float m_DefaultValue = 0.0f;
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public override void Init()
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{
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name = "AddNode";
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base.Init();
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}
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protected override string GetFunctionName () {return "unity_add_"+precision;}
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public void GenerateNodeFunction(ShaderGenerator visitor, GenerationMode generationMode)
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{
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var outputString = new ShaderGenerator ();
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foreach (var precision in m_PrecisionNames)
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{
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outputString.AddShaderChunk("inline " + precision + "4 unity_add_" + precision + " (" + precision + "4 arg1, " + precision + "4 arg2)", false);
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outputString.AddShaderChunk("{", false);
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outputString.Indent();
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outputString.AddShaderChunk("return arg1 + arg2;", false);
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outputString.Deindent();
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outputString.AddShaderChunk("}", false);
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}
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visitor.AddShaderChunk (outputString.GetShaderString (0), true);
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}
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public override Vector4 GetNewSlotDefaultValue ()
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{
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return Vector4.zero;
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}
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public override void NodeUI (Graphs.GraphGUI host)
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{
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base.NodeUI(host);
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EditorGUI.BeginChangeCheck ();
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m_DefaultValue = EditorGUILayout.FloatField("", m_DefaultValue, GUILayout.Width(64));
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if (EditorGUI.EndChangeCheck ())
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RegeneratePreviewShaders ();
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}
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}
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}
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