437 lines
17 KiB
C#
437 lines
17 KiB
C#
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using System.Collections.Generic;
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namespace UnityEngine.Rendering.PostProcessing
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{
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#if (ENABLE_VR_MODULE && ENABLE_VR)
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using XRSettings = UnityEngine.XR.XRSettings;
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#endif
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/// <summary>
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/// A context object passed around all post-processing effects in a frame.
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/// </summary>
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public sealed class PostProcessRenderContext
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{
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// -----------------------------------------------------------------------------------------
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// The following should be filled by the render pipeline
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Camera m_Camera;
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/// <summary>
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/// The camera currently being rendered.
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/// </summary>
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public Camera camera
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{
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get { return m_Camera; }
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set
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{
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m_Camera = value;
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#if !UNITY_SWITCH && (ENABLE_VR_MODULE && ENABLE_VR)
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if (m_Camera.stereoEnabled)
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{
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var xrDesc = XRSettings.eyeTextureDesc;
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stereoRenderingMode = StereoRenderingMode.SinglePass;
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numberOfEyes = 1;
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#if UNITY_2018_3_OR_NEWER
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if (XRSettings.stereoRenderingMode == XRSettings.StereoRenderingMode.MultiPass)
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stereoRenderingMode = StereoRenderingMode.MultiPass;
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#endif
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#if UNITY_STANDALONE || UNITY_EDITOR || UNITY_PS4 || UNITY_PS5
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if (xrDesc.dimension == TextureDimension.Tex2DArray)
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stereoRenderingMode = StereoRenderingMode.SinglePassInstanced;
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#endif
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if (stereoRenderingMode == StereoRenderingMode.SinglePassInstanced)
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numberOfEyes = 2;
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width = xrDesc.width;
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height = xrDesc.height;
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m_sourceDescriptor = xrDesc;
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if (m_Camera.stereoActiveEye == Camera.MonoOrStereoscopicEye.Right)
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xrActiveEye = (int)Camera.StereoscopicEye.Right;
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screenWidth = XRSettings.eyeTextureWidth;
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screenHeight = XRSettings.eyeTextureHeight;
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stereoActive = true;
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}
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else
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#endif
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{
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width = m_Camera.pixelWidth;
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height = m_Camera.pixelHeight;
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m_sourceDescriptor.width = width;
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m_sourceDescriptor.height = height;
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screenWidth = width;
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screenHeight = height;
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stereoActive = false;
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numberOfEyes = 1;
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}
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}
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}
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/// <summary>
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/// The command buffer to fill render commands in.
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/// </summary>
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public CommandBuffer command { get; set; }
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/// <summary>
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/// The source target for this pass (can't be the same as <see cref="destination"/>).
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/// </summary>
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public RenderTargetIdentifier source { get; set; }
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/// <summary>
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/// The destination target for this pass (can't be the same as <see cref="source"/>).
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/// </summary>
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public RenderTargetIdentifier destination { get; set; }
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/// <summary>
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/// The texture format used for the source target.
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/// </summary>
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// We need this to be set explictely as we don't have any way of knowing if we're rendering
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// using HDR or not as scriptable render pipelines may ignore the HDR toggle on camera
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// completely
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public RenderTextureFormat sourceFormat { get; set; }
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/// <summary>
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/// Should we flip the last pass?
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/// </summary>
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public bool flip { get; set; }
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// -----------------------------------------------------------------------------------------
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// The following is auto-populated by the post-processing stack
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/// <summary>
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/// The resource asset contains reference to external resources (shaders, textures...).
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/// </summary>
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public PostProcessResources resources { get; internal set; }
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/// <summary>
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/// The property sheet factory handled by the currently active <see cref="PostProcessLayer"/>.
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/// </summary>
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public PropertySheetFactory propertySheets { get; internal set; }
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/// <summary>
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/// A dictionary to store custom user data objects. This is handy to share data between
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/// custom effects.
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/// </summary>
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public Dictionary<string, object> userData { get; private set; }
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/// <summary>
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/// A reference to the internal debug layer.
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/// </summary>
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public PostProcessDebugLayer debugLayer { get; internal set; }
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/// <summary>
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/// The current camera width (in pixels).
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/// </summary>
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public int width { get; private set; }
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/// <summary>
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/// The current camera height (in pixels).
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/// </summary>
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public int height { get; private set; }
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/// <summary>
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/// Is stereo rendering active?
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/// </summary>
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public bool stereoActive { get; private set; }
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/// <summary>
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/// The current active rendering eye (for XR).
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/// </summary>
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public int xrActiveEye { get; set; }
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/// <summary>
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/// The number of eyes for XR outputs.
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/// </summary>
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public int numberOfEyes { get; private set; }
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/// <summary>
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/// Available XR rendering modes.
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/// </summary>
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public enum StereoRenderingMode
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{
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/// <summary>
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/// Multi-pass.
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/// </summary>
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MultiPass = 0,
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/// <summary>
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/// Single-pass.
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/// </summary>
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SinglePass,
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/// <summary>
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/// Single-pass instanced.
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/// </summary>
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SinglePassInstanced,
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/// <summary>
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/// Single-pass multi-view.
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/// </summary>
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SinglePassMultiview
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}
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/// <summary>
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/// The current rendering mode for XR.
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/// </summary>
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public StereoRenderingMode stereoRenderingMode { get; private set; }
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/// <summary>
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/// The width of the logical screen size.
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/// </summary>
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public int screenWidth { get; private set; }
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/// <summary>
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/// The height of the logical screen size.
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/// </summary>
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public int screenHeight { get; private set; }
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/// <summary>
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/// Are we currently rendering in the scene view?
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/// </summary>
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public bool isSceneView { get; internal set; }
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/// <summary>
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/// The current anti-aliasing method used by the camera.
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/// </summary>
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public PostProcessLayer.Antialiasing antialiasing { get; internal set; }
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/// <summary>
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/// A reference to the temporal anti-aliasing settings for the rendering layer. This is
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/// mostly used to grab the jitter vector and other TAA-related values when an effect needs
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/// to do temporal reprojection.
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/// </summary>
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public TemporalAntialiasing temporalAntialiasing { get; internal set; }
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// Internal values used for builtin effects
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// Beware, these may not have been set before a specific builtin effect has been executed
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internal PropertySheet uberSheet;
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internal Texture autoExposureTexture;
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internal LogHistogram logHistogram;
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internal Texture logLut;
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internal AutoExposure autoExposure;
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internal int bloomBufferNameID;
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#if UNITY_2018_2_OR_NEWER
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internal bool physicalCamera;
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#endif
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/// <summary>
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/// Resets the state of this context object. This is called by the render pipeline on every
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/// frame and allows re-using the same context object between frames without having to
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/// recreate a new one.
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/// </summary>
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public void Reset()
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{
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m_Camera = null;
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width = 0;
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height = 0;
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m_sourceDescriptor = new RenderTextureDescriptor(0, 0);
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#if UNITY_2018_2_OR_NEWER
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physicalCamera = false;
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#endif
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stereoActive = false;
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xrActiveEye = (int)Camera.StereoscopicEye.Left;
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screenWidth = 0;
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screenHeight = 0;
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command = null;
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source = 0;
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destination = 0;
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sourceFormat = RenderTextureFormat.ARGB32;
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flip = false;
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resources = null;
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propertySheets = null;
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debugLayer = null;
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isSceneView = false;
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antialiasing = PostProcessLayer.Antialiasing.None;
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temporalAntialiasing = null;
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uberSheet = null;
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autoExposureTexture = null;
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logLut = null;
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autoExposure = null;
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bloomBufferNameID = -1;
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if (userData == null)
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userData = new Dictionary<string, object>();
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userData.Clear();
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}
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/// <summary>
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/// Checks if temporal anti-aliasing is supported and enabled.
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/// </summary>
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/// <returns><c>true</c> if temporal anti-aliasing is supported and enabled, <c>false</c>
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/// otherwise</returns>
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public bool IsTemporalAntialiasingActive()
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{
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return antialiasing == PostProcessLayer.Antialiasing.TemporalAntialiasing
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&& !isSceneView
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&& temporalAntialiasing.IsSupported();
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}
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/// <summary>
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/// Checks if a specific debug overlay is enabled.
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/// </summary>
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/// <param name="overlay">The debug overlay to look for</param>
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/// <returns><c>true</c> if the specified debug overlay is enable, <c>false</c>
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/// otherwise</returns>
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public bool IsDebugOverlayEnabled(DebugOverlay overlay)
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{
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return debugLayer.debugOverlay == overlay;
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}
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/// <summary>
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/// Blit a source render target to the debug overlay target. This is a direct shortcut to
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/// <see cref="PostProcessDebugLayer.PushDebugOverlay"/>.
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/// </summary>
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/// <param name="cmd">The command buffer to send render commands to</param>
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/// <param name="source">The source target</param>
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/// <param name="sheet">The property sheet to use for the blit</param>
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/// <param name="pass">The pass to use for the property sheet</param>
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/// <seealso cref="PostProcessDebugLayer.PushDebugOverlay"/>
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public void PushDebugOverlay(CommandBuffer cmd, RenderTargetIdentifier source, PropertySheet sheet, int pass)
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{
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debugLayer.PushDebugOverlay(cmd, source, sheet, pass);
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}
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// TODO: Change w/h name to texture w/h in order to make
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// size usages explicit
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RenderTextureDescriptor m_sourceDescriptor;
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internal RenderTextureDescriptor GetDescriptor(int depthBufferBits = 0, RenderTextureFormat colorFormat = RenderTextureFormat.Default, RenderTextureReadWrite readWrite = RenderTextureReadWrite.Default)
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{
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var modifiedDesc = new RenderTextureDescriptor(m_sourceDescriptor.width, m_sourceDescriptor.height,
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m_sourceDescriptor.colorFormat, depthBufferBits);
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modifiedDesc.dimension = m_sourceDescriptor.dimension;
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modifiedDesc.volumeDepth = m_sourceDescriptor.volumeDepth;
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modifiedDesc.vrUsage = m_sourceDescriptor.vrUsage;
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modifiedDesc.msaaSamples = m_sourceDescriptor.msaaSamples;
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modifiedDesc.memoryless = m_sourceDescriptor.memoryless;
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modifiedDesc.useMipMap = m_sourceDescriptor.useMipMap;
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modifiedDesc.autoGenerateMips = m_sourceDescriptor.autoGenerateMips;
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modifiedDesc.enableRandomWrite = m_sourceDescriptor.enableRandomWrite;
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modifiedDesc.shadowSamplingMode = m_sourceDescriptor.shadowSamplingMode;
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#if UNITY_2019_1_OR_NEWER
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if (m_Camera.allowDynamicResolution)
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modifiedDesc.useDynamicScale = true;
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#endif
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if (colorFormat != RenderTextureFormat.Default)
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modifiedDesc.colorFormat = colorFormat;
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#if UNITY_2019_1_OR_NEWER
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if (readWrite == RenderTextureReadWrite.sRGB)
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modifiedDesc.sRGB = true;
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else if (readWrite == RenderTextureReadWrite.Linear)
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modifiedDesc.sRGB = false;
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else if (readWrite == RenderTextureReadWrite.Default)
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modifiedDesc.sRGB = QualitySettings.activeColorSpace != ColorSpace.Gamma;
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#else
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modifiedDesc.sRGB = readWrite != RenderTextureReadWrite.Linear;
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#endif
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return modifiedDesc;
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}
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/// <summary>
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/// Grabs a temporary render target with the current display size.
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/// </summary>
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/// <param name="cmd">The command buffer to grab a render target from</param>
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/// <param name="nameID">The shader property name for this texture</param>
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/// <param name="depthBufferBits">The number of bits to use for the depth buffer</param>
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/// <param name="colorFormat">The render texture format</param>
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/// <param name="readWrite">The color space conversion mode</param>
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/// <param name="filter">The texture filtering mode</param>
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/// <param name="widthOverride">Override the display width; use <c>0</c> to disable the override</param>
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/// <param name="heightOverride">Override the display height; use <c>0</c> to disable the override</param>
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public void GetScreenSpaceTemporaryRT(CommandBuffer cmd, int nameID,
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int depthBufferBits = 0, RenderTextureFormat colorFormat = RenderTextureFormat.Default, RenderTextureReadWrite readWrite = RenderTextureReadWrite.Default,
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FilterMode filter = FilterMode.Bilinear, int widthOverride = 0, int heightOverride = 0)
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{
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var desc = GetDescriptor(depthBufferBits, colorFormat, readWrite);
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if (widthOverride > 0)
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desc.width = widthOverride;
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if (heightOverride > 0)
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desc.height = heightOverride;
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//intermediates in VR are unchanged
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if (stereoActive && desc.dimension == Rendering.TextureDimension.Tex2DArray)
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desc.dimension = Rendering.TextureDimension.Tex2D;
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#if UNITY_2019_1_OR_NEWER
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cmd.GetTemporaryRT(nameID, desc, filter);
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#elif UNITY_2017_3_OR_NEWER
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cmd.GetTemporaryRT(nameID, desc.width, desc.height, desc.depthBufferBits, filter, desc.colorFormat, readWrite, desc.msaaSamples, desc.enableRandomWrite, desc.memoryless, m_Camera.allowDynamicResolution);
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#else
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cmd.GetTemporaryRT(nameID, desc.width, desc.height, desc.depthBufferBits, filter, desc.colorFormat, readWrite, desc.msaaSamples, desc.enableRandomWrite, desc.memoryless);
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#endif
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}
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/// <summary>
|
||
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|
/// Grabs a temporary render target with the current display size.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="depthBufferBits">The number of bits to use for the depth buffer</param>
|
||
|
|
/// <param name="colorFormat">The render texture format</param>
|
||
|
|
/// <param name="readWrite">The color space conversion mode</param>
|
||
|
|
/// <param name="widthOverride">Override the display width; use <c>0</c> to disable the override</param>
|
||
|
|
/// <param name="heightOverride">Override the display height; use <c>0</c> to disable the override</param>
|
||
|
|
/// <returns>A temporary render target</returns>
|
||
|
|
public RenderTexture GetScreenSpaceTemporaryRT(int depthBufferBits = 0, RenderTextureFormat colorFormat = RenderTextureFormat.Default,
|
||
|
|
RenderTextureReadWrite readWrite = RenderTextureReadWrite.Default, int widthOverride = 0, int heightOverride = 0)
|
||
|
|
{
|
||
|
|
var desc = GetDescriptor(depthBufferBits, colorFormat, readWrite);
|
||
|
|
if (widthOverride > 0)
|
||
|
|
desc.width = widthOverride;
|
||
|
|
if (heightOverride > 0)
|
||
|
|
desc.height = heightOverride;
|
||
|
|
|
||
|
|
return RenderTexture.GetTemporary(desc);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Update current single-pass stereo state for TAA, AO, etc.
|
||
|
|
/// </summary>
|
||
|
|
/// <param name="isTAAEnabled">The enabled state of Temporal Anti-aliasing</param>
|
||
|
|
/// <param name="isAOEnabled">The enabled state of Ambient Occlusion</param>
|
||
|
|
/// <param name="isSSREnabled">The enabled state of Screen-space Reflections</param>
|
||
|
|
public void UpdateSinglePassStereoState(bool isTAAEnabled, bool isAOEnabled, bool isSSREnabled)
|
||
|
|
{
|
||
|
|
#if UNITY_2019_1_OR_NEWER && ENABLE_VR_MODULE && ENABLE_VR
|
||
|
|
var xrDesc = XRSettings.eyeTextureDesc;
|
||
|
|
screenWidth = XRSettings.eyeTextureWidth;
|
||
|
|
|
||
|
|
if (stereoRenderingMode == StereoRenderingMode.SinglePass)
|
||
|
|
{
|
||
|
|
//For complex effects, it's more efficient to disable XR single-pass interface
|
||
|
|
if (isTAAEnabled || isAOEnabled || isSSREnabled)
|
||
|
|
{
|
||
|
|
numberOfEyes = 1;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
//Use XR-interface method:
|
||
|
|
//We take care of providing stereoized camera render texture to postprocessing framework and rendering out the final postprocessed results to the each of the eye textures
|
||
|
|
// https://docs.google.com/document/d/1hANbhKCRIJs6ww7XoAIXbX3ArdAs7OBOTfZL1MqgtPI
|
||
|
|
|
||
|
|
numberOfEyes = 2;
|
||
|
|
xrDesc.width /= 2;
|
||
|
|
xrDesc.vrUsage = VRTextureUsage.None;
|
||
|
|
screenWidth /= 2;
|
||
|
|
}
|
||
|
|
|
||
|
|
width = xrDesc.width;
|
||
|
|
height = xrDesc.height;
|
||
|
|
m_sourceDescriptor = xrDesc;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|