Hi,
I want to downsize the HDR in the dome light. But can't see any changes.
What is wrong about my settings?
Thanks.
HDR size in Dome light
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- jerry7
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- protozoan
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Take this with a grain of salt, as my wisdom is limited.
You won't see changes in specular reflection from that setting, but rather on the diffuse side.
It's there to filter out high frequency pings in the map that would result in noise.
You can try the following, to see a visible result. Take your sphere, kill the specular reflection from the shader, and use
as your map. The light there comes largely from a small sun disc. If you decrease the maximum size now to something ridiculous like "5" or so, the sampling will miss the sun and the scene turns blue.
You won't see changes in specular reflection from that setting, but rather on the diffuse side.
It's there to filter out high frequency pings in the map that would result in noise.
You can try the following, to see a visible result. Take your sphere, kill the specular reflection from the shader, and use
$HFS/houdini/pic/hdri/HDRIHaven_kiara_5_noon_2k.rat
as your map. The light there comes largely from a small sun disc. If you decrease the maximum size now to something ridiculous like "5" or so, the sampling will miss the sun and the scene turns blue.
Martin Winkler
money man at Alarmstart Germany
money man at Alarmstart Germany
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- jsmack
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