Out of Core Photon-Mapping for Large Buildings [Additionnal figures]
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a. b. c. d.
Figure 1: Use of CPU during global illumination for the octagon building according toM AX T M P P HOT ON S.
An interval on the abscissa represents 5seconds and an interval on ordinates represents5%of CPU use: a. With M AX T M P P HOT ON S = 500, allocated memory is not sufficient and disks reads and writes reduce CPU ef- ficiency. - b. M AX T M P P HOT ON S = 5000, CPU is used more efficiently with some remaining falling off.
- c. M AX T M P P HOT ON S = 10 000, disk is much less required and100%CPU is used most of the time. - d. M AX T M P P HOT ON S = 20 000, there is almost no difference than with b. disk accesses cannot be further reduced with this method.
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Figure 2: Number of photons processed for each room loaded in memory during computations for our octagon build- ing. Peaks correspond to corridors where a high number of photons enter through portals. We represent only the four first steps (after too less photons remain).
Figure 3: Images from the L-Building.
Figure 4: Images from the Z-Building.
Figure 5: Images from our octagon building.
Figure 6: Image from our octagon building.
Figure 7: Images from the Tower 100 building.
Figure 8: Images from the Tower 100 building.
