Interpolate objects separately from other entities - #1996
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Interpolation of objects can now be done separately from other enitites, controlled by cl_interp_objects. Will use cl_interp's value if cl_interp is higher than cl_interp_objects. Similar to the cl_interp_npcs command.
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Adds a command (
cl_interp_objects) that acts identically to thecl_interp_npcscommand except targeting objects.Will use
cl_interp's value ifcl_interpis higher thancl_interp_objects.This PR is mainly intended to fix the choppy animations observed on the Sentry Gun. Note the
cl_interpsettings in the console window.Source.SDK.Base.2013.Multiplayer.-.2026-08-13.7-48-37.PM.mp4
This issue is caused by the interpolation not starting far enough in the past (needs to be at least three and a half ticks in the past, 3.5/66ths of a second by default), resulting in the game not knowing where it will be interpolating to when the interpolation starts, giving up and displaying without any interpolation.
Currently, the only way to fix this is by increasing your global interpolation. Many players would prefer not to do this however, as it also comes with a disadvantage in that you are seeing the game world a fraction of a second later than you otherwise would be.
However, given that Engineer buildings are stationary as a rule, many players I've spoken to would be okay with an increased interpolation setting specifically for buildings, which is what this PR provides.
Note
This PR does not make any changes to the default settings or players' existing configurations. It can only be activated with a new console command which currently does not exist.
cl_interp_objectsusescl_interp's value ifcl_interpis larger, which by default it will be becausecl_interp_objectsis0.0by default.This video shows the result of increasing the object interpolation command to be above 3.5/66ths of a second (required for interpolation to work). Note the considerably smoother animations while the Sentry Gun is being built and upgraded.
Source.SDK.Base.2013.Multiplayer.-.2026-08-13.7-49-38.PM.mp4
Global interpolation that affects player movement is unaffected, but Sentry Guns look a lot smoother.