HDRI VRay render technique renders out pale image

[amateurviza]

Hi,

 

Wondering if anyone can help...

 

I've been experimenting with Peter Guthrie’s method of using just the HDRI as the lighting source and bringing the gamma down to get a stronger shadow. Seems to be working well, but the rendered out image is very pale.

 

Using:

Peter Guthrie’s HDRI sky - 1103

HDRI, Camera, and render settings below.

 

Any suggestions?

 

Thanks in-advance

[plummer_adam@hotmail.com]

I normally leave the multipliers on 1, change the vray domelight multiplier to 1 and then just adjust the exposure settings in the vray camera, I seem to get great results everytime

[Nic H]

it looks pretty good to me, nice and soft and varied. it could just be the that the lighting provided by a partially cloudy sky gives this feel.

 

what are you colour mapping settings? for an exterior id tend to keep it on linear, then on interiors that need softer more even lighting i will fiddle around with reinhard burn value to control burn and light distribution.

[christofferthulin]

The gamma in color mapping is set to 2.1. Perhaps you should change that to 2.2.

 

I think the render looks great. It just needs some good post production.

[amateurviza]

@Adam Plummer - the multiplier numbers are the equivalent of 1, having at them at the above values just means you can see the sky in the material editor. Though I will double check that.

 

@_ _ - you could be right, I've been experimenting with a few different sky's and a more cloudy sky gives what I think is far more normal output (colour wise) but a clear blue sky renders out a far bluer image. Which kinda makes sense but maybe isn't realistic?

Colour mapping wise I use Reinhard, but will give Linear a go. Thanks

 

@Christoffer Thulin – yeah changed to 2.2, thought it was! Agree it needs a fair bit of post-production work but still thought it could be closer to the finished product than it currently is.

 

 

Thanks for the advice

[Nic H]

are you adjusting your white balance when you say 'its going blue'

[amateurviza]

No, I'm just leaving it on neutral but that's only because most tutorials i've seen do. But I guess that would quickly solve it?

[Nic H]

if you want to get rid of a blue or yellow cast you can use white balance to correct this - however this is half the charm of a good HDRI...the colour cast and varied light.

 

you need to try linear mapping - reinhard is uised to control burnout - which you have none of, you want more contrast i reckon

 

i really think your render is a good base - if anything its the planting grass thats letting it down

[bilderbaurendering]

Hi Viz, looks like very nice result. I usually solve this things with curves and color balance in PS. I would also go for linear mapping as mentioned before. Don t forget to save it as .EXR for better results.

 

bb

[amateurviza]

Ok thanks, will experiment with linear mapping, and then I guess it’s all down to photoshop.

 

Thanks for the advice

[oluwapelumiajeigbe]

This looks good. Was wondering if you increased the output value of the hdr image (from 1) and it did appear balanced without postwork?

[Mario De Achadinha]

Photoshop!!! What you have done is perfect but you have done 3/4 of the job... Photoshop passes then you done and will get your mood.

[amateurviza]

@oluwapelumi ajeigbe thanks, do you mean the gamma of the hdri? Just adjusted the camera settings along with the hdri.

 

@mario de achadinha yeah thanks, haven’t got round to it yet but will post the finished image up when it done.

[oluwapelumiajeigbe]

if u loaded d hdri thru bitmaploader, u'll av an output slot where u can adjust the brightness. Was wondering if dat was what u adjusted or u just increased the intensity multiplier of the vray dome. Am not sure the gamma slot under color mapping affects the brightness level. cheers!