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Le 2022-12-08 à 08:06, Thomas de Groot a écrit :
light_source {
2*<5, 10, -40>
color White
area_light <5, 0, 0>, <0, 0, 5>, 5, 5
adaptive 2
area_illumination on
jitter
circular
orient
/*fade_power 1
fade_distance 30*/
}
Using adaptive 2 with that area_light is exactly the same as not using
it at all as the starting grid is 5x5.
For adaptive 2 to have any benefit, the grid need to be strictly larger
than 5 in at least one direction. So,
area_light <5, 0, 0>, <0, 0, 5>, 9, 9
or more.
Adaptive level, starting grid
0 2x2
1 3x3
2 5x5
3 9x9
Here is the formula to know the starting grid :
(adaptive level)^2 +1
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