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render stencil portals (stereo)

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This commit is contained in:
milan
2023-03-15 13:47:11 +01:00
parent 52fa079fce
commit c024ddfe5e
11 changed files with 578 additions and 643 deletions
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1
Assets/Portal/Runtime/Portal.asmdef
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@@ -4,6 +4,7 @@
"references": [
"GUID:75469ad4d38634e559750d17036d5f7c",
"GUID:15fc0a57446b3144c949da3e2b9737a9",
"GUID:df380645f10b7bc4b97d4f5eb6303d95",
"GUID:fe685ec1767f73d42b749ea8045bfe43",
"GUID:776d03a35f1b52c4a9aed9f56d7b4229",
"GUID:8804073475ba36c47830e8e19dc699ce",

25
Assets/Portal/Runtime/Portal.cs
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@@ -2,6 +2,7 @@ using System;
using System.Collections.Generic;
using EscapeRoomEngine.Engine.Runtime.Modules;
using EscapeRoomEngine.Engine.Runtime.Utilities;
using EscapeRoomEngine.VR.Runtime;
using NaughtyAttributes;
using UnityEngine;
@@ -87,12 +88,28 @@ namespace EscapeRoomEngine.Portal.Runtime
}
}
public Camera SetUpCamera(Camera playerCamera)
public Camera SetUpCamera(Camera playerCamera, Camera.MonoOrStereoscopicEye monoOrEye)
{
// place camera
var m = portalTransform.localToWorldMatrix * HalfRotation *
linkedPortal.portalTransform.worldToLocalMatrix * playerCamera.transform.localToWorldMatrix;
playerCamera.transform.SetPositionAndRotation(m.GetPosition(), m.rotation);
Matrix4x4 cameraTransform;
if (monoOrEye == Camera.MonoOrStereoscopicEye.Mono)
{
cameraTransform = portalTransform.localToWorldMatrix * HalfRotation *
linkedPortal.portalTransform.worldToLocalMatrix *
playerCamera.transform.localToWorldMatrix;
}
else
{
// stereoRenderCounter = (stereoRenderCounter + 1) % 2;
var eye = monoOrEye == Camera.MonoOrStereoscopicEye.Left
? Camera.StereoscopicEye.Left
: Camera.StereoscopicEye.Right;
cameraTransform = portalTransform.localToWorldMatrix * HalfRotation *
linkedPortal.portalTransform.worldToLocalMatrix *
Player.Instance.GetEye(eye).localToWorldMatrix;
playerCamera.projectionMatrix = playerCamera.GetStereoProjectionMatrix(eye);
}
playerCamera.transform.SetPositionAndRotation(cameraTransform.GetPosition(), cameraTransform.rotation);
// set camera clip plane to portal (otherwise the wall behind the portal would be rendered)
// calculating the clip plane: https://computergraphics.stackexchange.com/a/1506

15
Assets/Portal/Runtime/RenderPortalCameras.cs
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@@ -16,9 +16,9 @@ namespace EscapeRoomEngine.Portal.Runtime
private class PortalCameraRenderPass : ScriptableRenderPass
{
private static readonly List<ShaderTagId> ShaderTagIds = new List<ShaderTagId>
private static readonly List<ShaderTagId> ShaderTagIds = new()
{
new("SRPDefaultUnlit"), new("UniversalForward"), new("UniversalForwardOnly")
new ShaderTagId("SRPDefaultUnlit"), new ShaderTagId("UniversalForward"), new ShaderTagId("UniversalForwardOnly")
};
private RenderStateBlock _renderStateBlock;
@@ -74,8 +74,15 @@ namespace EscapeRoomEngine.Portal.Runtime
var originalPosition = cameraTransform.position;
var originalRotation = cameraTransform.rotation;
var originalProjection = camera.projectionMatrix;
camera = linkedPortal.SetUpCamera(camera);
RenderingUtils.SetViewAndProjectionMatrices(_commandBuffer, camera.worldToCameraMatrix, GL.GetGPUProjectionMatrix(camera.projectionMatrix, true), false);
camera = linkedPortal.SetUpCamera(camera,
camera.stereoEnabled
? cameraData.xr.multipassId == 0
? Camera.MonoOrStereoscopicEye.Left
: Camera.MonoOrStereoscopicEye.Right
: Camera.MonoOrStereoscopicEye.Mono);
RenderingUtils.SetViewAndProjectionMatrices(_commandBuffer,
camera.worldToCameraMatrix,
GL.GetGPUProjectionMatrix(camera.projectionMatrix, true), false);
// execute command buffer
context.ExecuteCommandBuffer(_commandBuffer);