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A ray traced image
by Per Christensen
Note:
Dark shadows
Unlit corners
Nice reflections
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Raw photons,
traced and recorded
Note:
Noisy
Sparse
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Interpolated Photons
Note:
Still noisy
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Interpolated Photons
(multiplied by diffuse refl.)
Note:
Still noisy
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Final Gather
Ray trace scene:
direct and specular rays as normal,
diffuse rays traced into photon map;
diffuse reflection smoothes noise.
Note:
Not noisy
Nice lighting
Good reflections
Final gather is often the bottleneck!
For comparison:
the simple ray-traced image again.
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All these image by Per Christensen
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