cloaknt
CloakNT engine was created by Cauldron Ltd, a Slovakian studio, for games like Chaser (2003), Soldier of Fortune: Payback (2007), Cabela's Dangerous Hunts 2013 (2012).
As of 2014, Bohemia Interactive quietly announced that Cauldron has been acquired and decided to integrate into a new branch called "Bohemia Interactive Slovakia" and is responsible for incorporating the animal and hunting mechanics into the game. Cabela's Dangerous Hunts 2013 is using CloakNT 3, the last known version of the engine.
Features:
(CloackNT 1) High-end engine, build in 2001.
Physics: Collision Detection: Solid objects physics.
Lighting: Per-pixel, Lightmapping, Anisotropic: Dynamic per-pixel lighting.
Shadows: Shadow Volume: Dynamic shadow volumes.
Texturing: Basic, Multi-texturing, Bumpmapping, Mipmapping.
Scene Management: Portals.
Meshes: Mesh Loading: 3D Studio MAX export.
Special Effects: Particle System, Water, Fog, Mirror: Volumetric fog, Refractive water surface, Projectors.
(CloakNT 2)
Unknown.
(CloakNT 3) Mid-end engine, build in 2005.
Physics: Boned models, Ragdoll, Solid objects.
Lighting: Radiosity, Medium HDRR and Bloom effects.
Shadows: Jittered shadows, Shadow texture size at 350+++,
Special Effects: Water, Volumetric fog and dust, Shader quality 2.0 (sun and light reflections), reflections (such as weapons and surface).