Performance Goals

• 30 FPS - 60 FPS

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Target Platforms

• PC, PS5, XBox, Nintendo Switch

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Minimum PC or Hardware Specs

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TIPS

• Set your minimum spec PC or Console

  • PlayStation, XBox, Switch

  • Steam Graphic Card Survey

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• Setup test builds for each target platform early in development

• Set up best practice guidelines

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Tools

• RenderDoc

• Pix

• ​Statistics Tool

• Session Frontend

• Unreal Insights

 

Unreal Performance Commands

NOTE:

Avoid testing performance in the editor! Always profile in standalone game builds.

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• start fps

• stat unit

• stat gpu

• stat scenerendering (Draw calls)

• stat RenderThreadCommands

• stat engine

• stat streamingr.vsync 0

• t.MaxFPS 1000

• r.screenPercentage 10

• stat unitGraph

• r.ProfileGPU.ShowUIshow Staticmeshes

• Stat StartFile

• Stat StopFile

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• show SkeletalMeshes

• show Particles

• show Lighting

• show DirectLighting

• show Translucency

• show ReflectionEnvironment

• show Show AmbientOcclusion

• show bones

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Performance Checklist

• Drawcalls (Too many object and material draws)

• Nanite

  • Setup and adjust fallback meshes for complex collision and reflections

  • Avoid too many material instances. Build layered material, which can be applied to many static nanite assets to calculate fewer draw calls.

  • Nanite occlusion culling​​​​​​​

• Foliage density and material cost

• Lights

  • Lightmass settings

  • Lightmass importance volume

  • Light map resolution

  • Clear light build warnings

  • Adjust too many overlapping dynamic light bounds

• Complex post effects materials

• Textures

  • Avoid non-uniform texture resolutions​​

  • Mip map compression settings​

• Large and too many Render Targets

• Static Mesh

  • LODS

  • Large shadow map resolution

  • Dynamic shadows (turn off unnecessary shadows)

  • ​Use Simple collision primitives. Avoiding using Complex collision​

• Skeletal Mesh

• • LODS​

  • Runtime cloth simulation

  • Use "Merge Actors" to combine and lower material drawcalls per character

    • Texture atlasing​

• Materials

  • Setup texture atlasing & texture channel masking

  • Avoid overlapping translucency - glass, water, distortion (Overdraw)​

  • Avoid large complex materials graphs

  • Setup material node switches to help toggle features per console and PC target

• FX

  • ​Overlapping translucent particles (Overdraw)

• Complex Blueprints and every frame tick events

• Adjust render settings to help support lower and higher end PCs

• Ray-trace & reflection settings

• Clean up Unreal redirectors and fix log errors

• Complex post effects

• Complex Fog

• Level stream volumes

• Object distance culling​​