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194 行
7.1 KiB

using System;
using System.Linq;
using UnityEngine;
using UnityEditor.Graphing;
namespace UnityEditor.ShaderGraph
{
[Title("Input", "Property")]
public class PropertyNode : AbstractMaterialNode, IGeneratesBodyCode, IOnAssetEnabled
{
private Guid m_PropertyGuid;
[SerializeField]
private string m_PropertyGuidSerialized;
public const int OutputSlotId = 0;
public PropertyNode()
{
name = "Property";
UpdateNodeAfterDeserialization();
}
public override string documentationURL
{
get { return "https://github.com/Unity-Technologies/ShaderGraph/wiki/Property-Node"; }
}
private void UpdateNode()
{
var graph = owner as AbstractMaterialGraph;
var property = graph.properties.FirstOrDefault(x => x.guid == propertyGuid);
if (property == null)
return;
if (property is Vector1ShaderProperty)
{
AddSlot(new Vector1MaterialSlot(OutputSlotId, property.displayName, "Out", SlotType.Output, 0));
RemoveSlotsNameNotMatching(new[] {OutputSlotId});
}
else if (property is Vector2ShaderProperty)
{
AddSlot(new Vector2MaterialSlot(OutputSlotId, property.displayName, "Out", SlotType.Output, Vector4.zero));
RemoveSlotsNameNotMatching(new[] {OutputSlotId});
}
else if (property is Vector3ShaderProperty)
{
AddSlot(new Vector3MaterialSlot(OutputSlotId, property.displayName, "Out", SlotType.Output, Vector4.zero));
RemoveSlotsNameNotMatching(new[] {OutputSlotId});
}
else if (property is Vector4ShaderProperty)
{
AddSlot(new Vector4MaterialSlot(OutputSlotId, property.displayName, "Out", SlotType.Output, Vector4.zero));
RemoveSlotsNameNotMatching(new[] {OutputSlotId});
}
else if (property is ColorShaderProperty)
{
AddSlot(new Vector4MaterialSlot(OutputSlotId, property.displayName, "Out", SlotType.Output, Vector4.zero));
RemoveSlotsNameNotMatching(new[] {OutputSlotId});
}
else if (property is TextureShaderProperty)
{
AddSlot(new Texture2DMaterialSlot(OutputSlotId, property.displayName, "Out", SlotType.Output));
RemoveSlotsNameNotMatching(new[] {OutputSlotId});
}
else if (property is CubemapShaderProperty)
{
AddSlot(new CubemapMaterialSlot(OutputSlotId, property.displayName, "Out", SlotType.Output));
RemoveSlotsNameNotMatching(new[] { OutputSlotId });
}
else if (property is BooleanShaderProperty)
{
AddSlot(new BooleanMaterialSlot(OutputSlotId, property.displayName, "Out", SlotType.Output, false));
RemoveSlotsNameNotMatching(new[] { OutputSlotId });
}
}
public void GenerateNodeCode(ShaderGenerator visitor, GenerationMode generationMode)
{
var graph = owner as AbstractMaterialGraph;
var property = graph.properties.FirstOrDefault(x => x.guid == propertyGuid);
if (property == null)
return;
if (property is Vector1ShaderProperty)
{
var result = string.Format("{0} {1} = {2};"
, precision
, GetVariableNameForSlot(OutputSlotId)
, property.referenceName);
visitor.AddShaderChunk(result, true);
}
else if (property is Vector2ShaderProperty)
{
var result = string.Format("{0}2 {1} = {2};"
, precision
, GetVariableNameForSlot(OutputSlotId)
, property.referenceName);
visitor.AddShaderChunk(result, true);
}
else if (property is Vector3ShaderProperty)
{
var result = string.Format("{0}3 {1} = {2};"
, precision
, GetVariableNameForSlot(OutputSlotId)
, property.referenceName);
visitor.AddShaderChunk(result, true);
}
else if (property is Vector4ShaderProperty)
{
var result = string.Format("{0}4 {1} = {2};"
, precision
, GetVariableNameForSlot(OutputSlotId)
, property.referenceName);
visitor.AddShaderChunk(result, true);
}
else if (property is ColorShaderProperty)
{
var result = string.Format("{0}4 {1} = {2};"
, precision
, GetVariableNameForSlot(OutputSlotId)
, property.referenceName);
visitor.AddShaderChunk(result, true);
}
else if (property is BooleanShaderProperty)
{
var result = string.Format("{0} {1} = {2};"
, precision
, GetVariableNameForSlot(OutputSlotId)
, property.referenceName);
visitor.AddShaderChunk(result, true);
}
}
public Guid propertyGuid
{
get { return m_PropertyGuid; }
set
{
if (m_PropertyGuid == value)
return;
var graph = owner as AbstractMaterialGraph;
var property = graph.properties.FirstOrDefault(x => x.guid == value);
if (property == null)
return;
m_PropertyGuid = value;
UpdateNode();
Dirty(ModificationScope.Topological);
}
}
public override string GetVariableNameForSlot(int slotId)
{
var graph = owner as AbstractMaterialGraph;
var property = graph.properties.FirstOrDefault(x => x.guid == propertyGuid);
if (!(property is TextureShaderProperty) && !(property is CubemapShaderProperty))
return base.GetVariableNameForSlot(slotId);
return property.referenceName;
}
protected override bool CalculateNodeHasError()
{
var graph = owner as AbstractMaterialGraph;
if (!graph.properties.Any(x => x.guid == propertyGuid))
return true;
return false;
}
public override void OnBeforeSerialize()
{
base.OnBeforeSerialize();
m_PropertyGuidSerialized = m_PropertyGuid.ToString();
}
public override void OnAfterDeserialize()
{
base.OnAfterDeserialize();
if (!string.IsNullOrEmpty(m_PropertyGuidSerialized))
m_PropertyGuid = new Guid(m_PropertyGuidSerialized);
}
public void OnEnable()
{
UpdateNode();
}
}
}