The default engine implementation of DrawAllOverlays will return early when cvar 'enable_debug_overlays' is false. The problem with this is that overlays are still added, which fills memory unnecessarily and also increases CPU time as they never decay, which overloads the function 'PurgeServerOverlays'. This became evident after profiling the application. Numerous people reported the bug.
The smart pistol's laser line overlay did not draw after the debug overlay rebuild. After some small debugging, I found out that there was a function that creates the curved trace, and creates an overlay with index 4 (originally swept_box), however, the structure is different to that of swept_box. This is laser_line. Implemented logic for drawing out laser line, which essentially just calls DrawLine (as is the case in the engine).
* Construct min/max for AI Script Network boxes using SIMD (significantly reduced instruction count!).
* Move NavMesh debug draw to dedicated class for future changes.
* Fix all compiler error for GameSDK on S0 and S1.
* Remove some unused patterns and globals (launch performance gains of 100ms).
* Remove most duplicate patterns.
* Relocate globals from engine to a more appropriate location.
* Renamed some unknown vars to a more appropriate name (most of these where obtained a while back, but as we reversed more parts of the engine, some of these vars become known).
* Renamed some vars to fit the naming convention used in the SDK.
* Fixed pattern debug logging using the wrong pointer, thus displaying the wrong address.
* Changing RCON passwords on the server now closes all connections and re-initializes the system.
* Fully mapped out VFTable interface for IConVar* (used for ConVar callbacks, see callback.cpp).
* Move AIN/NavMesh debug draw to ai_utility_shared.cpp.
* Use shift index + range for AIN debug draw.
* Added cvar for determining max distance between camera and tile (anything outside this range doesn't get draw).
* Pointer to g_pMemAllocSingleton
* New wrapper for returning the singleton, and creating one if not yet initialized (game shares the same pointer, and is aware of its creation).
navmesh_draw_portal > -1 enables the overlay, with this cvar you can also shift through tiles.
navmesh_debug_type [0 - 4] selects the NavMesh (small, med_short, medium, large, extra_large).
navmesh_draw_bvtree > -1 enables the overlay, with this cvar you can also shift through tiles.
navmesh_debug_type [0 - 4] selects the NavMesh (small, med_short, medium, large, extra_large).
Only OverlayLine_t has a field to determine whether or not to ignore the z-buffer.
Added ConVar 'r_debug_overlay_zbuffer' to allow setting z-buffer for all overlays.
* Move render utils to dedicated file.
* Implement more render/mesh utils.
* Added structure for OverlayTriangle_t, OverlaySweptBox_t and OverlayCapsule_t.
OverlayCapsule_t has been modified to accommodate the size in r5 (2 new vectors).
SourceSDK mathlib port with light modifications.
Renamed Vector to Vector3D (to avoid confusion with std::vector (declared as vector) and Vector2D/Vector4D).