"Zoom in" background

[howardhong_cg]

the first image is rendered with vray and second is not.
compare with the first n second image, hdr sky of first image is "zoom in".
Anybody who can correct this?

[dcauldwell_cg]

Re: "Zoom in" background

I think this is a function of:
a) the size of the original 'sky' image
b) the type of projection specified in the environment slot (e.g. spherical, cubic etc.)
d) the number of repeats in the u v slots.

To start with, I would try to gradually increase the number of repeats in the environment u v slot and see if that fixes it.

Good Luck

David

[howardhong_cg]

Re: "Zoom in" background

thanks, dcauldwell

of course, i put the same hdr image to the renderer.
check the trees of horizental lines of next two images.
first one is rendered by vray.

i think the space of vray is smaller than the other renderer.
or, it has distorted background space.







the background images is pinouted and showes low quality, because of"zoomed in".

[dcauldwell_cg]

Re: "Zoom in" background

Howard

Well, if you are still not happy with the background, and you haven't got a high res hdr to put in the environment slot, then I would just make a billboard to put in the background. That way you have more control over whats happening. Just add an emmissive layer and increase the value until it looks right.
I tend to use images in the environment slot only to create window refelections, and even for this I sometimes resort to billboards, because you have better control over them.

Good Luck

David

[wookie85]

Re: "Zoom in" background

yep thats true , give hdri map for reflects and make "bilboard" by the model i set resolution/scale , this is the best way ;]

[howardhong_cg]

Re: "Zoom in" background

Thanks, dcauldwell.
Your advice really helps me.

[dcauldwell_cg]

Re: "Zoom in" background

ok. but why are you zoomed out so far? I'm not too sure what you have done here.
Have a look at chillrender's post which shows an example.

David

[howardhong_cg]

Re: "Zoom in" background

Thanks, David.

i would show you the deferent appearence of spherical background.
first image was rendered by vray, second is not.

vray's background sphere is distorted, i think it's cone shaped.
so it shows the reason of "zoom in" n focusouted.

i will use your method for background, but i wanna check it why it's appearence is not good.

good luck.

[dcauldwell_cg]

Re: "Zoom in" background

the sort of 'distorted' image in the background is optimised for insertion in the 'environment' slot with the 'spherical' setting. If you are inserting an image on a billboard it needs to be a 'regular' sky image.

David

[howardhong_cg]

Re: "Zoom in" background

of course, i did do apply 'spherical' setting in the environment tab.