A PC classic transformed.

Doom is the ultimate game.

The results are excellent overall and the processes required to make it happen are often ingenious.

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First up, let’s talk requirements: what do you should probably get going?

You’ll also need the RT version of prboom,available here.

The final requirement is an Nvidia RTX GPU.

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Beyond that, Doom embraces the concept of diminished lighting.

In a sense, it’s possible for you to think of the player as a rudimentary light source.

That starts with the sky itself, which is effectively an emissive surface.

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Since this is ray tracing, soft shadows are cast from any geometry obscuring the sun.

And much like Doom 3, weapons fire casts muzzle flashes shadows, which look really atmospheric.

Interestingly, this replaces the diminished lighting muzzle flash trick used by the original game.

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The developer deserves kudos for the way the spectre sprite is handled.

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In some cases, this can add to the atmosphere.

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Hardware-wise, let’s discuss extremes.

In terms of options to tweak for ray tracing, you might adjust which lights receive global illumination.

It’s not the full package but it still looks great.

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