Unreal Engine Issues

AmbientOcclusion doesn't work properly on orthogonal projection camera

Camera set to Projection Mode Orthographic doesn't appear to be rendering Sky Atmosphere

This is a regression. Tested in //UE5/Release-5.2 CL26001984 It appears Sky Atmosphere isn't rendered by a camera with projection mode set to Orthographic. ...

TSR & WPO - Distortion around mesh edges

The background around a mesh moving via WPO is distorted. Mesh is correctly outputting velocities. ...

Volumetric lightmap + stationary light has missing shadows

Primitives with the "Lightmap Type" set to "Force Volumetric" are not shadowed correctly. Issue dates back to at least 4.27.2. As a workaround, making FLightCacheInterface::GetStaticInteraction al ...

Scene View Extension - Subscribing to Tonemap's afterpass renders black screen

Callbacks for the Tonemap's afterpass that return identity return black screen unless there is a post-process material. ...

Static Mesh Scene Actor Flipped Normals

Static meshes can have normals flipped when the actor they are attached to has one component of its scale inverted. ...

DBuffer uses linear RGBA8 for base color instead of SRGB

DBuffer has 8 bit render targets for decals. The first render target holds BaseColor. It is not SRGB so we probably have poor precision distribution over the color range. It should be possible simpl ...

RVT does not correctly render multiple identical Instanced Static Mesh Components

If multiple ISM components are set to render to the same RVT and they each have the same mesh/material setup, then intermittently some instances will be dropped from rendering to RVT pages. Differen ...

Issue with Niagara MeshRenderer

A static mesh far from the origin appears to wobble in PIE

It seems that the numbers are rounded in VertexFactoryCommon shader. The cube consists of vertices that are very far from the origin and are placed on the screen by placing them at coordinates that ...