Viewport Show Flags

ShowFlagHeader.png

The Show Flags are found under the Viewport Show menu. They are a means by which you can show and hide many of the items that are viewed within the viewport. For example, you can hide all particles, all landscape objects, or something a bit more advanced like turning off all of the sprite icons.

Common

Common

Name

Description

Anti-aliasing Shows/hides the effect of anti-aliasing.
BSP Shows/hides any Brushes in the level. (Alt + Q)
Collision Shows/hides collision objects in the level. (Alt + C)
Decals Shows/hides decals in the scene.
Fog Shows/hides the effects of Height Fog. (Alt + F)
Grid Shows/hides the grid.
Landscape Shows/hides any Landscape objects. (T)
Navigation Shows/hides any Nav Meshes or other navigation Actors. (P)
Particles Sprite Shows/hides any particles in the scene.
Skeletal Meshes Shows/hides any Skeletal Meshes in the scene.
Static Meshes Shows/hides any Static Meshes in the scene. (Alt + W)
Translucency Shows/hides all objects with translucent Materials. Incidentally, this includes all billboard icons.

Post Processing

Post Processing

Name

Description

Bloom Shows/hides the effect bloom.
Camera Imperfections Shows/hides the effect of Camera Imperfections.
Color Grading Shows/hides the effect of Color Grading.
Depth of Field Shows/hides the effect of Depth of Field.
Eye Adaptation Shows/hides the effect of Eye Adaptation.
Grain Shows/hides the effects of Grain.
HMD Distortion Shows/hides the effects of head-mounted display distortion, such as that used for Oculus Rift.
Lens Flares Shows/hides the effect of Lens Flares.
Motion Blur Shows/hides the effect of Motion Blur.
Post Process Material Shows/hides the effect of any blendable post process Materials in the scene.
Scene Color Fringe Shows/hides the result of any Scene Color Fringe effects.
Screen Percentage Shows/hides the result of Screen Percentage post effects.
Tonemapper Shows/hides Tonemapper effects.
Vignette Shows/hides Vignette effects.

Light Types

Lighting Types

Name

Description

Directional Lights Shows/hides the result of lighting from the Directional Light actor in the scene.
Point Lights Shows/hides the result of lighting from the Point Light actor in the scene.
Sky Lighting Shows/hides the result of lighting from the Sky Light actor in the scene.
Spot Lights Shows/hides the result of lighting from the Spot Light actor in the scene.

Lighting Components

Lighting Components

Name

Description

Ambient Occlusion Shows/hides ambient occlusion in the scene.
Diffuse Shows/hides the result of diffuse lighting in the scene, which contains most of the scene color.
Direct Lighting Shows/hides the result of direct lighting, which contains most of the scene specularity.
Dynamic Shadows Shows/hides dynamic shadows in the scene.
Global Illumination Shows/hides the result of global illumination in the scene.
Specular Shows/Hides the result of specularity in the scene.

Lighting Features

Lighting Components

Name

Description

Ambient Cubemap Shows/hides the result of the ambient cubemap.
Distance Field Ambient Occlusion Shows/hides the result of the AO generated from Distance Field meshes.
Distance Field Global Illumination Shows/hides the result of the GI generated from Distance Field meshes.
Indirect Lighting Cache Shows/hides the result of indirect lighting on dynamic objects.
Light Functions Shows/hides the result of light function materials on lights.
Light Shafts Shows/hides the result of light shafts.
Reflection Environment Shows/hides the result of the reflection environment.
Screen Space Ambient Occlusion Shows/hides the result of any screen space ambient occlusion.
Screen Space Reflections Shows/hides the result of screen space reflections.
Subsurface Scattering Shows/hides the result of any subsurface scattering within the screen space.
Textured Light Profiles (IES Textures) Shows/hides the result of IES lighting profiles.

Developer

Developer

Name

Description

AI Debug This shows the paths an AI-driven pawn is using to navigate along a Nav Mesh.
Composite Editor Primitives Show/hide editor primitives in the scene.
Gameplay Debug This shows the paths an AI-driven pawn is using to navigate along a Nav Mesh.
GBuffer Hints (material attributes) Colorizes objects that have improper Materials. Yellow for objects that are impossibly non-reflective, red for objects that emit more light than they receive.
Hit Proxies Shows/hides the proxy shapes used by hit detection.
Log Visualizer Draws any data to the screen that is required by the Log Visualizer system.
On Screen Debug This is to hide things like VisualizeTexture or stats printout.
Refraction Shows/hides the results of refraction on Materials.
Shadows of Editor-Hidden Actors Shows dynamic shadows for objects that are hidden in the editor, such as those hidden by pressing the H key.
Test Image Shows a test image for configuration of monitor and graphics settings.
Vector Fields Shows/hides any vector fields in the scene.

Visualize

Visualize

Name

Description

Adaptive Depth of Field Applies a color coding filter to the view such that objects that are blurred by Depth of Field are tinted green and only the area in focus receives its normal color.
Bloom Shows a visualization window that expresses the scene histogram, as well as how settings are affecting bloom.
Depth of Field Layers Applies a color coding filter to the view such that objects blurred by near DOF are green, objects blurred by far DOF are blue. Objects in focus appear black.
Distance Field Ambient Occlusion Shows a visualization of ambient occlusion generated based on mesh distance fields.
Distance Field Global Illumination Shows a visualization of global illumination generated based on mesh distance fields.
HDR Shows a visualization window that expresses the scene histogram, as well as how exposure settings are affecting brightness.
Light Propagation Volumes Shows a visualization of the volume that is used for light propagation volumes.
Mesh Distance Fields Shows a visualization of the generated mesh distance fields for static meshes in the scene.
Motion Blur When Motion Blur is on, this changes the view to a Motion Blur visualizer, allowing you to see the motion vectors being used to calculate blur.
Out of Bounds Pixels If a pixel of an object exists outside that object's bounding volume, it can lead to flickering or the object disapearing when the bounding volume (but not the mesh) is off camera. This visualizer colorizes those pixels in blue, yellow, and white.
Precomputed Visibility Cells Shows a visualization of precomputed visibility cells when used with Precomputed Visibility Volumes.
Preview Shadows Indicator When lighting has not been built for Static/Stationary lights the "Preview" text will show in unbuilt shadows.
Screen Space Reflections A visualization for Screen Space Reflections.
Subsurface Scattering (Screen Space) A visualization mode that allows you to see subsurface scattering within screen space.
Volume Lighting Samples Shows a visualization of the volume lighting samples that are placed within a Lightmass Importance Volume when static lighting is built.

Advanced

Advanced

Name

Description

Atmospheric Fog Shows/hides atmospheric fog Actors in the scene.
Audio Radius Shows/hides the radius of any audio Actors in the scene.
Billboard Sprites Shows/hides any billboard sprites in the level. This does not extend to sprite particles, only Billboard Components.
Bounds Shows/hides bounds on selected objects.
BSP Split Shows/hides Brush surface splits on world geometry.
Camera Aspect Ratio Bars Shows/hides the bars used with specific aspect ratios set in the camera actor.
Camera Frustums Shows/hides view frustums of any cameras in the scene.
Camera Safe Frames When looking through a Camera Actor, this shows the safe frames for that camera. Safe frames are areas a set distance from the edge of the screen where you can guarantee the image will be visible.
Constraints Shows/hides rigid body constraints. TODO
Deferred Lighting Shows/hides the deferred lighting in the scene.
Foliage Shows/hides any Foliage Actors in the scene.
Grass Shows/hides any Grass Type Actors in the scene.
Instanced Static Meshes Shows/hides any instanced Static Meshes in the scene.
Large Vertices Shows/hides larger-than-usual vertices on any selected Brushes or Static Meshes.
Level Coloration Color codes the scene such that each streamed level gets another color. Irrelevant if not using level streaming.
Light Influences Shows orange lines which point out what lights are influencing selected objects.
Light Radius Shows/hides light radius shapes.
LOD Parenting Use LOD parenting, MinDrawDistance, etc. If disabled, will show LOD parenting lines.
Mesh Edges This overlays the mesh wireframe on top of the view.
Mode Widgets Shows/hides the transform widgets, such as the Move tool.
Paper 2D Sprites Shows/hides the radius of any Paper 2D Sprite Actors in the scene.
Precomputed Visibility Shows/hides the radius of any Precomputed Visibility volumes in the scene.
Render (3D) Text Whether or not to render any Text Actors or Components that may be in the scene.
Selection Shows/hides the result of the Selection Highlight.
Separate Translucency This shows/hides any objects that are making use of Separate Translucency in their Materials.
Shadow Frustums Shows/hides a selection of color-coded boxes which represent the shadow frustums used to cast shadows from each light.
Splines Shows/hides any Spline Actors that exist in the level.
Streaming Bounds Shows/hides spherical radii for each streaming level.
Temporal AA (instead FXAA) Activates/deactivates Temporal Anti-aliasing. When unchecked, the viewport shows fast approximation anti-aliasing (FXAA).
Tessellation Shows/hides the result of tessellation in Materials.
Vertex Colors Shows/hides any vertex colors applied to meshes in the scene.
Volumes Shows/hides any volumes in the scene. (Alt-O)

Volumes

Volumes

Name

Description

Show All Shows all types of volumes in the scene.
Hide All Hides all types of volumes in the scene.
Audio Shows/hides Audio Volumes.
Blocking Shows/hides Blocking Volumes.
Camera Blocking Volume Shows/hides Camera Blocking Volumes.
Cull Distance Shows/hides Cull Distance Volumes.
Hierarchical LOD Volume Shows/hides Hierarchical LOD Volumes.
Kill Z Volume Shows/hides Kill Z Volumes.
Level Streaming Shows/hides Level Streaming Volumes.
Lightmass Character Indirect Detail Shows/hides Lightmass Character Indirect Detail Volumes.
Lightmass Importance Shows/hides Lightmass Importance Volumes.
NavMesh Bounds Shows/hides NavMesh Bounds Volumes.
Nav Modifier Shows/hides Nav Modifier Volumes.
Pain Causing Shows/hides Pain Causing Volumes.
Physics Shows/hides Physics Volumes.
Post Process Shows/hides Post Process Volumes.
Precomputed Visibility Override Shows/hides Precomputed Visibility Override Volumes.
Precomputed Visibility Shows/hides Precomputed Visibility Volumes.
Procedural Foliage Blocking Volume Shows/hides Procedural Foliage Blocking Volumes.
Procedural Foliage Volume Shows/hides Procedural Foliage Volumes.
Trigger Shows/hides Trigger Volumes.

Layers

Layers

Name

Description

Show All Sets all Layers in the scene to be visible.
Hide All Hides all Layers in the scene.
Layer Names This will populate with the names of any Layers you have created in your scene, so that you may show/hide each one individually.

Sprites

Billboard sprites are generally in-editor icons used for placement of various object types. In this case, they do not refer to sprite particles.

Billboard Sprites

Name

Description

Show All Shows all types of billboard sprites.
Hide All Hides all types of billboard sprites.
Characters Shows/hides Character billboard sprites.
Decals Shows/hides Decal billboard sprites.
Effects Shows/hides Effects billboard sprites, which represent the location of Emitter Actors.
Fog Shows/hides Fog Actor billboard sprites.
FTests Shows/hides FTest billboard sprites.
Info Shows/hides Info billboard sprites.
Lighting Shows/hides Light Actor billboard sprites.
Materials Shows/hides Materials billboard sprites.
Matinee Shows/hides Matinee billboard sprites.
Misc Shows/hides miscellaneous billboard sprites which do not fall into the other categories.
Navigation Shows/hides Navigation billboard sprites.
Notes Shows/hides Notes billboard sprites.
Physics Shows/hides Physics billboard sprites.
Player Start Shows/hides Player Start billboard sprites.
Sky Shows/hides Sky billboard sprites.
Sounds Shows/hides Sounds billboard sprites.
Target Points Shows/hides Target Points billboard sprites.
Triggers Shows/hides Triggers billboard sprites.
Wind Shows/hides Wind billboard sprites.