iOS Debugging and Optimization - Learning Unreal Engine iOS Game Development - page 190

Performance optimization
iOS devices and mobiles in general can run games with a high frame rate, but there are
some disadvantages that you need to take care of to make sure that the game will be run-
ning at its best frame rate. Here are some points that you need to check while working with
Unreal games for iOS:
• Try not to use real-time lights and try to use baked lightmaps
• Make sure that you build all of the lighting before building to the device
• Pooling the actors is better than destroying and spawning them
• Don't use post process effects on the camera
• Make sure to have less than 700 draw calls in the camera view
• Use as few materials as possible to get fewer draw calls
• Use as few textures as possible; using atlases is a great way to optimize the tex-
tures' amount and size
• Square texture (power of two) is the best texture for iOS devices
• The tries count should not be more than 500,000 in the camera view
• Use PrecomputedVisibilityVolumes if your game has lots of 3D meshes
• Try not to use HDR or LDR if possible
• Try no to use lots of masked or translucent materials, as iOS devices are not
friendly with opaque surfaces