Vray and HDR output

[AJLynn]

So if I render in Vray using, say, sun/sky, physical camer and Vray Frame Buffer, I can save in HDR or EXR format to get a 32-bit float format, but if I go into Photoshop and tweak that it doesn't seem like it being HDR is helping me very much. I'm expecting it to work similarly to my digicam HDRs, which I use to get a good range of exposure adjustment and bring out detail in bright and dark places. My render output HDRs don't seem to give me any more than PNG does. Am I misinterpreting the use of HDR output, or doing something wrong? Is there a key step I'm missing?

[olbo]

If I'm not wrong, ... you'll need to use V-Ray's own image format to

get a real, real, real HDR and then convert it to .exr with the provided

tool. This is because of the bad .exr implementation in 3dsmax.

 

 

take care

Oleg

[AJLynn]

Thanks, I'll try that tomorrow.

[Crazy Homeless Guy]

....where can i find the vrimg2exr app? it looks as though it was removed from thier website.

 

http://www.spot3d.com/vray/help/150R1/tools_vrimg2exr.htm

http://www.chaosgroup.com/support/private/1/

 

edt: ....i havn't installed my copy of 1.5 yet. i am still running 1.47.03. maybe it is included with 1.5.

[John Dollus]

>>This is because of the bad .exr implementation in 3dsmax.

 

Isn't it more a case of the vray rendering engine not fully supporting the EXR plugin that comes with Max? Rendering in full float with MR and Brazil in Max as EXR seems to work as expected.

[ramsheed khan]

what is quasi monte carlo lightning.is it a light or 3rd plugins can anyone help me to get it

[jbrckovic]

What are your real real full float workflows in VRay? It seems that VFB's .exr output is not real 32 bit.