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105 行
3.1 KiB
105 行
3.1 KiB
using System.Reflection;
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using UnityEngine;
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using UnityEditor.Graphing;
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using UnityEditor.ShaderGraph.Drawing.Controls;
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namespace UnityEditor.ShaderGraph
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{
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enum DepthSamplingMode
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{
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Linear01,
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Raw,
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Eye
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};
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[Title("Input", "Scene", "Scene Depth")]
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sealed class SceneDepthNode : CodeFunctionNode, IMayRequireDepthTexture
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{
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const string kScreenPositionSlotName = "UV";
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const string kOutputSlotName = "Out";
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public const int ScreenPositionSlotId = 0;
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public const int OutputSlotId = 1;
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[SerializeField]
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private DepthSamplingMode m_DepthSamplingMode = DepthSamplingMode.Linear01;
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[EnumControl("Sampling Mode")]
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public DepthSamplingMode depthSamplingMode
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{
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get { return m_DepthSamplingMode; }
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set
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{
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if (m_DepthSamplingMode == value)
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return ;
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m_DepthSamplingMode = value;
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Dirty(ModificationScope.Graph);
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}
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}
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public SceneDepthNode()
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{
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name = "Scene Depth";
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UpdateNodeAfterDeserialization();
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}
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public override bool hasPreview { get { return false; } }
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protected override MethodInfo GetFunctionToConvert()
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{
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switch (m_DepthSamplingMode)
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{
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case DepthSamplingMode.Raw:
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return GetType().GetMethod("Unity_SceneDepth_Raw", BindingFlags.Static | BindingFlags.NonPublic);
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case DepthSamplingMode.Eye:
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return GetType().GetMethod("Unity_SceneDepth_Eye", BindingFlags.Static | BindingFlags.NonPublic);
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case DepthSamplingMode.Linear01:
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default:
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return GetType().GetMethod("Unity_SceneDepth_Linear01", BindingFlags.Static | BindingFlags.NonPublic);
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}
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}
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static string Unity_SceneDepth_Linear01(
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[Slot(0, Binding.ScreenPosition)] Vector4 UV,
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[Slot(1, Binding.None, ShaderStageCapability.Fragment)] out Vector1 Out)
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{
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return
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@"
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{
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Out = Linear01Depth(SHADERGRAPH_SAMPLE_SCENE_DEPTH(UV.xy), _ZBufferParams);
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}
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";
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}
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static string Unity_SceneDepth_Raw(
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[Slot(0, Binding.ScreenPosition)] Vector4 UV,
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[Slot(1, Binding.None, ShaderStageCapability.Fragment)] out Vector1 Out)
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{
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return
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@"
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{
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Out = SHADERGRAPH_SAMPLE_SCENE_DEPTH(UV.xy);
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}
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";
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}
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static string Unity_SceneDepth_Eye(
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[Slot(0, Binding.ScreenPosition)] Vector4 UV,
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[Slot(1, Binding.None, ShaderStageCapability.Fragment)] out Vector1 Out)
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{
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return
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@"
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{
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Out = LinearEyeDepth(SHADERGRAPH_SAMPLE_SCENE_DEPTH(UV.xy), _ZBufferParams);
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}
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";
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}
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public bool RequiresDepthTexture(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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