Yesterday, NVIDIA announced a new feature coming to the RTX Remix modding toolkit— fully path-traced, GPU-accelerated particles, first demonstrated running under
Portal With RTX, as well as
Half-Life 2 RTX in additional documentation. The primary demonstration was uploaded to YouTube using
Portal With RTX to showcase spark particles coming off an energy ball, highlighting how the particles could be manipulated by the user. This includes setting custom gravity on the particles, causing them to rise or fall, or making them burst in all directions instead of being a controlled stream.
Sparks aren't the only kinds of GPU particles that you can use with RTX Remix particles, though. As demonstrated with Half-Life 2 RTX, albeit with a more abstract example in the new release notes, an enemy can be slapped with100,000 particles resembling shedding leaves, all of which have realistic physics and shadows.
Many visual effects will be made possible in retro titles with RTX Remix particles, and since they're GPU-accelerated like modern particle effects are, the performance impacts should be light and reasonable even as they cast shadows and reflections. Most particle effects modders add are unlikely to be so unreasonably dense, though, considering how hard it actually is to see those 100,000 particles fluttering about.
In any case, it's certainly cool to see NVIDIA still adding
new features to RTX Remix and giving modders more tools with which to breathe new life into classic games. Of course, there's always something to be said about simply playing the original games in their unaltered forms and respecting the art direction made under limitations of the time— but projects like
Portal With RTX and
Half-Life 2 RTX do effectively showcase the potential of this technology.
Not all implementations are going to be made equal, though— in this writer's humble opinion, the new fire particle effects demonstrated under
Half-Life 2 RTX actually look somewhat tacky. And previously, we've seen how the RTX Remix of
Need For Speed Most Wanted demonstrates that cutting-edge tech in the wrong hands can still make a game look
worse. On the note of new technology making a game look worse, those new
Panzer Dragoon Zwei screenshots? You'd think it'd be easy to make a 3D game look better than it did on the primitive 1996 Sega Saturn, and sadly, you'd be wrong— all prescient reminders that strong art direction still matters here in the RTX Remix era.
Image Credit: NVIDIA