Need help: trying to make godrays

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rappet
Licensed Customer
Posts: 1962
Joined: Fri Apr 06, 2012 3:57 pm
Location: The Netherlands
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Hi guys,

I need some help here... I am trying to make godrays :roll:

In different posts I see these awsome renderings with godrays and awsome fog.
I got my hands on the fog part, but creating godrays seems only to be for the rendergods amongst us :-)
A great example is this render form Karba.
http://render.otoy.com/forum/viewtopic. ... it=godrays

In the attachments you can see my setup and two results with different settings for the fog material.
I used daylight, but also a hdr texture environment... I also added a Cube as an emitter at the same place where I put my daylight sun.
I tried different combination with different kernels... but no godrays :cry:

So whatever settings I try I do not get godrays. The thing is I am trying to get result by trial and error,
but I do not know the conditions or constraints to get godrays to begin with.
Maybe I have to work on a differetn scale? This scene is human scale with the fog volume being about 100meters size (height).
Maybe I am having a setting in material or in the kernel that makes it impossible to get godrays :?:

I need help from the rendergods to make my own rays :lol:

greetz,

PS
I will make a more simple scene witho0ut trees scattered but with trees on fixed position to have more control of the sunlight related to the tree(s) to produce godrays.
Attachments
Tapperworks_prehistoric-fog.jpg
Tapperworks_prehistoric-fogsetup-2.jpg
Tapperworks_prehistoric-fogsetup.jpg

4090+3089ti & Quad 1080ti
ArchiCAD25, ofcourse Octane & OR-ArchiCAD plugin (love it)
http://www.tapperworks.com
http://www.facebook.com/pages/TAPPERWOR ... 9851341126
http://www.youtube.com/user/Tapperworks/videos
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