cleanup
This article contains tips about optimizing doomsday for older hardware.
Slow CPU
Disabling or lowering these CPU-intensive settings will help improve performance on slow CPUs.
Slow graphics card
Disabling or lowering these GPU-intensive settings will help improve performance with old graphics accelerators.
Using paletted textures will save texture memory and make texture reloads less frequent. Enable with the *-paltex* option.
Disable smart filtering of textures. Smart filtering significantly increases the size of all textures. Disabling it will help conserve texture memory.
Disable simulated radiosity (FakeRadio). Set the cvar _rend-fakeradio_ to zero.
Disable dynamic lights or reduce the size of dynamic lights.
Use additive blending for dynamic lights instead of multiplicative blending.
Disable particle effects or lower the value of the _rend-particle-rate_ cvar.
Disable detail textures.
Don't use high-resolution textures.
Disable anti-aliasing in the graphics adapter's driver settings.
Use a lower display resolution.
Use a 16-bit video mode.