Physics issues - Gravity - m6-exterior #67
Description
Level on which the issue is apperent: m6-exterior
Issue is related to client fps and frametime updates in:
void PM_AirMove
PM_SlideMove
Specific Script Command: $world.physicsvar ( "gravity" , 80 );
Script Command translates to Gamecode:
//Updates each sv_frame in:
void World::Think( void )
//to cvar:
gi.cvar_set( "sv_currentGravity", va( "%f", temp_gravity ) );
sv_currentGravity->value
How to recrate: Load the Level in Singleplayer and make sure you have V-Sync Off and you com_maxfps set to something above 75 FPS, like for example 120 and compare the speed at which you glide down after a jump with fps at (com_maxfps 75) an (com_maxfps 120). The higher the FPS the slower you will glide down.
Conditions:
g_gametype 0;
g_gametype 1; dedicated 0;
Singleplayer/Listen Server, Offical Relase 1.1, the GOG Version has a "fix" that limits the FPS to 85 at which the issue isn't as apparent.
The issue does not occur on dedicated servers, it is reasonable to assume that it has to do with something where the game uses CLIENT 0 gameframes for the calculations. There probably is a math inaccuracy or a limit missing. I have not really looked into that issue.
