Blending HDRI and Sky?
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hi everyone
I chose a picture for BG in vray option window
does anybody knows how i can reduce the size of image and make it repeat in the back ground? -
Hello,
in the Texture Editor of BG settings, if you use a TexBitmap, in the UVWGenEnvironment, you've got a "repeat" option for horizontal and vertical settings.
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@chon said:
in the Texture Editor "repeat" option
yes but it is not working for me:
it is a reflect able sphere I rendered for you to see
I attached original picture and rendered pictures with 1, 5 ,20 and 100 repeat both in horizontal and vertical directions.
as you see when repeat number increases it seams picture goes to be zoomed more and more in the background!
why I can not see at least one picture in complete size in the background? while I want to see pictures tiled in the background!
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Perhaps try a repeat of 0.25 (this should give you 4 images across the 360 degree view)
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Using background images, VRay maps an image on the interior faces of a sphere representing the sky with your scene in the middle of that sphere.
So, on your image, you've got to represent both north AND south hemispheres with the horizon on the middle of that image like that :
Hope it will help you...
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@andybot said:
try a repeat of 0.25
this is a 0.25 repeat... as you can see it is still one picture in the background!
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@chon said:
So, on your image, you've got to represent both north AND south hemispheres with the horizon on the middle of that image
i understood what you said...
but why i should do that? I mean what happens if don't do that?
and how it helps me too have a tile texture in the background? -
@ali64risk said:
this is a 0.25 repeat... as you can see it is still one picture in the background!
I guess that's slightly less bad
Maybe it's time to look for a different environment image - there's just not enough sky in that one... -
@chon said:
in the UVWGenEnvironment, you've got a "repeat" option for horizontal and vertical settings.
When you set UVWGenEnvironment, is it also set to Spherical? I've always wished that there was a graphic representation of the environment map in the scene that I could manipulate. I always end up using an image in the reflect and refract and then add same image as a background in Photoshop.
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ali64risk,
take a look on that VIDEO. It will help you for configuration.
Try to render your scene with my sky image. You will have a bad BG render because of low resolution but you will understand how it works.
To have good results, your HDR image must have a very high resolution.
On this exemple, the HDR image is 9000 pixels long and is a pure render, no photoshop postprod :
On the net, high HDR images sold are 12000 pixels long...
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i just ended up here.
Fernando's trick seems doest work fully with sketchup 2016. so as new user i have to crack up my brain.I simply used Text Mix in environment
Load the hdri in text A and set the Text Sky in Text B.Disable the Text C (Mix).
Then after series of trials. I unticked the Text B.Seems working. Shadows apperared with affecting the hdri's intensity.
Hope thus helps.
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