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replaced by the contents of the given file. |
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.PP |
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.I Rcontrib |
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< |
has EXPERIMENTAL support for light source contributions from photon maps |
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< |
generated by |
| 286 |
> |
supports light source contributions from photon maps generated by |
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.I mkpmap(1) |
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with its |
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.I -apC |
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option. In photon mapping mode, |
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option. Enabling photon mapping is described in the |
| 291 |
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.I rtrace |
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man page along with its relevant settings. In photon mapping mode, |
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.I rcontrib |
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only supports contributions from light sources, not arbitrary modifiers. |
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The |
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.I \-V- |
| 300 |
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option. Using fewer photons than there are light sources for the photon |
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density estimates results in omitted contributions, thus the bandwidth |
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is clamped accordingly and a warning issued. |
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is clamped accordingly and a warning is issued. |
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.SH EXAMPLES |
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To compute the proportional contributions from sources modified |
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by "light1" vs. "light2" on a set of illuminance values: |
