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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

test 1

test 2

Beautiful!

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

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

ies vs spotlight
sl 10

sl 20

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

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

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