[seghier]

the spot light have very useful parameters
and playing with map; blur and sphere size give different types of lights.
i made some tests with different cone angle and fallOff angle.
here the different fallOff types : from linear to cubic / blur=1 / no map



here test of the spot with blur 600 / no map / cone - fallOff angle = 5 / sphere scale = 0.1



here test of the spot with blur 600 / no map / cone - fallOff angle = 5 / sphere scale = 0.3



test of the spot with blur 600 / procedural circle map



Spot light with image map / blur = 1



Spot light with image map / blur = 600

[seghier]

test 1

test 2

[Fernando Tella]

Beautiful!

[mgroeteke]

interesting test! do spotlights cleanup faster than their IES counterparts? would be interesting to see that...

[seghier]

thanks ; i test ies and spotlight in my laptop ; i don't see difference in rendering speed but spotlight have more options than ies

[seghier]

ies vs spotlight
sl 10

sl 20

[mgroeteke]

thanks for your interesting tests! seems it is on pair in terms of noise after same SL...
i wonder what happens if we have lots of them in a scene, like 30 or 40 in a typical shopping mall interior scene

maybe i will have time in the next weeks to test this.

cheers

markus

[seghier]

thanks ; i think no difference between rendering time
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openvdb test with maxwellsea

[seghier]

[seghier]

tests with different sphere scales :
blur = 100 ; different y scales


blur = 1 ; different y scales



blur = 100 ; different x,y,z scales


blur = 1 ; different x,y,z scales



sphere with scale 0 ; -0.5 (x,y,z) ; sphere with 0 scale emit light from point (0,0,0)





two spheres : sclae 0.5 , -0.5