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daveso
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Post edited by daveso on
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If it is above the horizon and in front of the camera then yes. You can also change the disc size so that it looks bigger.
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You can set the direction of the sun using a camera: In the "Render Settings" tab select "Sun-Sky Only" under the "Environment Mode" dropdown. Then click on "SS Sun Node" and select a camera that you have created for this purpose. Wherever in the scene you place the camera, that will set the direction to the sun as the ray from the scene origin through the camera position.
Set the Lat/Long, month and time to where you live. You then know where the sun is going to be in the sky so you can point the camera towards it.
what about declination.
If I set everything for where I live I know where the sun should be in the sky just by looking :)
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Why not use the sun-dial in the render presets? Then point it where you want it. (Or use a distant light and set it as the sun-node in render settings so you can look through that to get the angle you want)
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Sun-dial should be under: Content/My Library > Render Presets Iray (not the render settings tab) - once loaded in the scene, expand the tree to get to the 'Sun Chain' bone.
For the distant light - create one, then in the render settings tab, go to 'Environment' (make sure it's on 'sun sky only' then scroll down to 'SS Sun Node' - it'll start as 'none' - click that and select your distant light). (Edit: Just tried it and I largely get a too-bright sky but if I lower it near the horizon I can see the sun)
Somewhat on a similar topic, when I use "Sun and Sky", all the spotlights in my scene are switched off. Does "Sun and Sky" thus mean that ALL the lighting for the scene will ONLY come from the sun and the sky? I was happy to use a sun and sky setting to a certain date/time but then my spotlights were all turned off so in the end I had to substitute "sun and sky" with "dome and scene" and applied an HDRI background.
^You can still use emissive lights but otherwise 'Sun Sky Only' turns off other scene lights (AFAIK). If you remove the HDRI from the Environment tab, it'll then use the same 'Sun Sky' node but now you can have 'dome and scene' to use your scene lights too.
These use the sun from the dome.
Whale
Click on image for full size.
Winter Solstice
Click on image for full size.
Yes, you need Dome & Scene instead. You can still set the time, date, and GPS coordinates though.
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I made a mistake. The whale one uses a HDRI, I just checked. This one does use Sun and Sky though
Out of the Sun
Click on image for full size.
You don't need declination if you set all detailed.
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Those are cloud billboards from another set.
Those are cloud billboards from another set.
These are the settings.
Click on image for full size.