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87 lines
3.9 KiB
87 lines
3.9 KiB
using UnityEditor.Graphing;
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using UnityEditor.Rendering.UITK.ShaderGraph;
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using UnityEngine;
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namespace UnityEditor.ShaderGraph
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{
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[Title("UI", "Sample Element Texture")]
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[SubTargetFilter(typeof(IUISubTarget))]
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class SampleElementTextureNode : AbstractMaterialNode, IGeneratesBodyCode, IMayRequireUITK
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{
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public const int UV0Id = 0;
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public const int UV1Id = 1;
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public const int UV2Id = 2;
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public const int UV3Id = 3;
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public const int Color0SlotId = 10;
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public const int Color1SlotId = 11;
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public const int Color2SlotId = 12;
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public const int Color3SlotId = 13;
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private const string kUIV0SlotName = "UV 0";
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private const string kUIV1SlotName = "UV 1";
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private const string kUIV2SlotName = "UV 2";
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private const string kUIV3SlotName = "UV 3";
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private const string kColor0SlotName = "Color 0";
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private const string kColor1SlotName = "Color 1";
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private const string kColor2SlotName = "Color 2";
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private const string kColor3SlotName = "Color 3";
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public override bool hasPreview { get { return false; } }
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public SampleElementTextureNode()
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{
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name = "Sample Element Texture";
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synonyms = new string[] { };
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UpdateNodeAfterDeserialization();
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}
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public override void UpdateNodeAfterDeserialization()
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{
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AddSlot(new Vector2MaterialSlot(UV0Id, kUIV0SlotName, kUIV0SlotName, SlotType.Input, Vector2.zero));
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AddSlot(new Vector2MaterialSlot(UV1Id, kUIV1SlotName, kUIV1SlotName, SlotType.Input, Vector2.zero));
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AddSlot(new Vector2MaterialSlot(UV2Id, kUIV2SlotName, kUIV2SlotName, SlotType.Input, Vector2.zero));
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AddSlot(new Vector2MaterialSlot(UV3Id, kUIV3SlotName, kUIV3SlotName, SlotType.Input, Vector2.zero));
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AddSlot(new Vector4MaterialSlot(Color0SlotId, kColor0SlotName, kColor0SlotName, SlotType.Output, Vector4.zero));
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AddSlot(new Vector4MaterialSlot(Color1SlotId, kColor1SlotName, kColor1SlotName, SlotType.Output, Vector4.zero));
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AddSlot(new Vector4MaterialSlot(Color2SlotId, kColor2SlotName, kColor2SlotName, SlotType.Output, Vector4.zero));
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AddSlot(new Vector4MaterialSlot(Color3SlotId, kColor3SlotName, kColor3SlotName, SlotType.Output, Vector4.zero));
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RemoveSlotsNameNotMatching(new[] {
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UV0Id,
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UV1Id,
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UV2Id,
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UV3Id,
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Color0SlotId,
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Color1SlotId,
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Color2SlotId,
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Color3SlotId,
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});
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}
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public void GenerateNodeCode(ShaderStringBuilder sb, GenerationMode generationMode)
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{
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sb.AppendLine("$precision4 {0};", GetVariableNameForSlot(Color0SlotId));
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sb.AppendLine("$precision4 {0};", GetVariableNameForSlot(Color1SlotId));
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sb.AppendLine("$precision4 {0};", GetVariableNameForSlot(Color2SlotId));
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sb.AppendLine("$precision4 {0};", GetVariableNameForSlot(Color3SlotId));
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sb.Append("#define UIE_SAMPLEX(index) ");
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sb.Append("{0} = UNITY_SAMPLE_TEX2D(_Texture##index, {1});", GetVariableNameForSlot(Color0SlotId), GetSlotValue(UV0Id, generationMode));
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sb.Append("{0} = UNITY_SAMPLE_TEX2D(_Texture##index, {1});", GetVariableNameForSlot(Color1SlotId), GetSlotValue(UV1Id, generationMode));
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sb.Append("{0} = UNITY_SAMPLE_TEX2D(_Texture##index, {1});", GetVariableNameForSlot(Color2SlotId), GetSlotValue(UV2Id, generationMode));
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sb.Append("{0} = UNITY_SAMPLE_TEX2D(_Texture##index, {1});", GetVariableNameForSlot(Color3SlotId), GetSlotValue(UV3Id, generationMode));
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sb.AppendLine("");
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sb.AppendLine("half index = IN.typeTexSettings.y;");
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sb.AppendLine("UIE_BRANCH(UIE_SAMPLEX)");
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}
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public bool RequiresUITK(ShaderStageCapability stageCapability)
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{
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return true;
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}
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}
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}
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