DepthNormalsFeature

DepthNormalsFeature.cs

using UnityEngine;
using UnityEngine.Rendering;
using UnityEngine.Rendering.Universal;

public class DepthNormalsFeature : ScriptableRendererFeature
{
    class DepthNormalsPass : ScriptableRenderPass
    {
        int kDepthBufferBits = 32;
        private RenderTargetHandle depthAttachmentHandle { get; set; }
        internal RenderTextureDescriptor descriptor { get; private set; }

        private Material depthNormalsMaterial = null;
        private FilteringSettings m_FilteringSettings;
        string m_ProfilerTag = "DepthNormals Prepass";
        ShaderTagId m_ShaderTagId = new ShaderTagId("DepthOnly");

        public DepthNormalsPass(RenderQueueRange renderQueueRange, LayerMask layerMask, Material material)
        {
            m_FilteringSettings = new FilteringSettings(renderQueueRange, layerMask);
            depthNormalsMaterial = material;
        }

        public void Setup(RenderTextureDescriptor baseDescriptor, RenderTargetHandle depthAttachmentHandle)
        {
            this.depthAttachmentHandle = depthAttachmentHandle;
            baseDescriptor.colorFormat = RenderTextureFormat.ARGB32;
            baseDescriptor.depthBufferBits = kDepthBufferBits;
            descriptor = baseDescriptor;
        }

        // This method is called before executing the render pass.
        // It can be used to configure render targets and their clear state. Also to create temporary render target textures.
        // When empty this render pass will render to the active camera render target.
        // You should never call CommandBuffer.SetRenderTarget. Instead call <c>ConfigureTarget</c> and <c>ConfigureClear</c>.
        // The render pipeline will ensure target setup and clearing happens in an performance manner.
        public override void Configure(CommandBuffer cmd, RenderTextureDescriptor cameraTextureDescriptor)
        {
            cmd.GetTemporaryRT(depthAttachmentHandle.id, descriptor, FilterMode.Point);
            ConfigureTarget(depthAttachmentHandle.Identifier());
            ConfigureClear(ClearFlag.All, Color.black);
        }

        // Here you can implement the rendering logic.
        // Use <c>ScriptableRenderContext</c> to issue drawing commands or execute command buffers
        // https://docs.unity3d.com/ScriptReference/Rendering.ScriptableRenderContext.html
        // You don't have to call ScriptableRenderContext.submit, the render pipeline will call it at specific points in the pipeline.
        public override void Execute(ScriptableRenderContext context, ref RenderingData renderingData)
        {
            CommandBuffer cmd = CommandBufferPool.Get(m_ProfilerTag);

            using (new ProfilingSample(cmd, m_ProfilerTag))
            {
                context.ExecuteCommandBuffer(cmd);
                cmd.Clear();

                var sortFlags = renderingData.cameraData.defaultOpaqueSortFlags;
                var drawSettings = CreateDrawingSettings(m_ShaderTagId, ref renderingData, sortFlags);
                drawSettings.perObjectData = PerObjectData.None;


                ref CameraData cameraData = ref renderingData.cameraData;
                Camera camera = cameraData.camera;
                if (cameraData.isStereoEnabled)
                    context.StartMultiEye(camera);


                drawSettings.overrideMaterial = depthNormalsMaterial;


                context.DrawRenderers(renderingData.cullResults, ref drawSettings,
                    ref m_FilteringSettings);

                cmd.SetGlobalTexture("_CameraDepthNormalsTexture", depthAttachmentHandle.id);
            }

            context.ExecuteCommandBuffer(cmd);
            CommandBufferPool.Release(cmd);
        }

        /// Cleanup any allocated resources that were created during the execution of this render pass.
        public override void FrameCleanup(CommandBuffer cmd)
        {
            if (depthAttachmentHandle != RenderTargetHandle.CameraTarget)
            {
                cmd.ReleaseTemporaryRT(depthAttachmentHandle.id);
                depthAttachmentHandle = RenderTargetHandle.CameraTarget;
            }
        }
    }

    DepthNormalsPass depthNormalsPass;
    RenderTargetHandle depthNormalsTexture;
    Material depthNormalsMaterial;

    public override void Create()
    {
        depthNormalsMaterial = CoreUtils.CreateEngineMaterial("Hidden/Internal-DepthNormalsTexture");
        depthNormalsPass = new DepthNormalsPass(RenderQueueRange.opaque, -1, depthNormalsMaterial);
        depthNormalsPass.renderPassEvent = RenderPassEvent.AfterRenderingPrePasses;
        depthNormalsTexture.Init("_CameraDepthNormalsTexture");
    }

    // Here you can inject one or multiple render passes in the renderer.
    // This method is called when setting up the renderer once per-camera.
    public override void AddRenderPasses(ScriptableRenderer renderer, ref RenderingData renderingData)
    {
        depthNormalsPass.Setup(renderingData.cameraData.cameraTargetDescriptor, depthNormalsTexture);
        renderer.EnqueuePass(depthNormalsPass);
    }
}

Hi there Alexander!

I wanted to try and make your outline shader in Unity, and am stumped at adding this bit of code to the universal render pipeline asset renderer. I'm working in Unity 2020.1.
The script does show up when I tick the 'Add Renderer Feature' box at the bottom of the renderer, but when I choose it, it does not get added.

Do you have any idea why this could be? Am I working in a version of Unity that is not compatible with your script?
(I'm getting no Console errors by the way)

Thank you in advance if you can find the time to help me out!

Hi again! Found out that just starting a new Unity project with URP (Instead of adding URP later on) made it work, so at least it didn't have anything to do with the Unity version!

On to the next part of your instructions! Excitement!