Modder Nwks has released a 60FPS mod for Dark Souls: Prepare To Die Edition. This new mod for the game unlock's framerate, and is currently in alpha phase.
Interested gamers can download Dark Souls 60FPS MOD. But before you go aheahd here is a quick note from modder, this mode might break the game and so download at your own risk (since its still in alpha phase), and the mod works online in offline mode.
Here is few notes listed by modder about his mod.
“Durante, I’ll send you the source with a description of my understandings of the engine. I can provide you a detailed description with offsets, if you are comfortable with a disassembler. (Concerning GFWL, my version of the mod is “compatible” with online capabilities but let’s not get into that…)
Dabura667, I was like you before. Basically the game uses two independent and asynchronous threads: – An animation engine running at a fixed delta-t (1/30fps) It performs animation interpolation and controls the overall game speed. – A rendering engine. It runs at 30fps w/ vsync, 15fps w/ vsync, or anywhere below 15fps wo/ vsync.
At 30fps, the rendering engine renders all frames (jobs) computed by the animation engine. Below 30fps, it simply drops one frame out of two. “Unlocking” the rendering engine causes indeed the game to run faster, as frames computed with a delta-t of 1/30 would be displayed at a rate of 60fps, for example.
So the animation engine’s delta-t must be set accordingly to the maximum frame-rate, and then it’s only a matter of frame-rate division (only 1/1 and 1/2 are possible in the game, which is okay for 30fps but I’ll work on other rates for higer FPS).”