Help - HDRI's

[drvox]

hi all

 

I'm having some troubles here to fit the HFRI's to the background. See attached picts please.

 

Does anybody Knows what can I do since there isn't the U: V: and Tiling options.

 

And I'm using Vray glass with fresnel reflections. There sould be the reflection of the HDRI in the windows glass. I think the problem might be in the glass settings. Can someone help me?

 

I used the settings of the Vismasters Tutorial.

 

I've been spending lots of hours with these and I can't see what's going wrong.

 

Thanks a lot!

[jfs]

Hello,

 

about the glass reflections, try remove the "Override Material IOR" in the Fresnel Falloff and back to main settings try values between 0.95 and 0.98 in the Reflection Glossiness. Other thing that probably will lead to better glass results are in "Options" check "Reflect on back side"

 

 

Hope it helps.

[drvox]

Thanks a lot. I'll try as soon as I arrive home.

 

Someone can help to fit the HDRI's to the scene?

 

I also wonder Why don't I have the "Setup" option (attaced picture) when I browse the HDRI in the materials slot.

 

This seems to be a nice tutorial, but unfortunelly it's not being easy for me to lead with HDRI's

 

Thanks all

 

King Regards

[jfs]

Insted using VRay HDR try with Bitmap -> Then load the HDR (in here you wil have the Setup, White Point, Black Point, Real Pixel or 16 bit/chan or 8bit/chan... etc )

 

Just one thing, are you shure that the HDR (as VRay HDR) is updating in the background when you rotate it? Some times heven with very good graphic board this update is not fast (Enable / Disable view background to reload the image could help)

[Msamir]

Joao why did you suggest increasing the subdivision in the refraction slot to 50, isnt that going to increase the render time significantly ?

[jfs]

Hi Mazen. You are right! I didn't mention that or correct the settings for the screenshot I took from the glass material settings (that work great for me in my last archviz renders). Patricio for test renders you should decrease the refraction subdivisions to much lower values and, if in quality renders you use high AA subdivisions, you could leave low ones here also - they will be overrided by AA subd. anyway.

[drvox]

I wonder where is the option for AA subds

 

About HDRI's, if I open as a bitmap it wont be lightning the scene, correct??

 

thanks a lot for all!!

[guitarboy]

Hey,

 

im in the process of trying to do this exact tutorial, and am stuck with the same questions.

 

but i also found a way to open the HDRI image as a bitmap and still maintaining the lighting info. ill do a step by step tonight and post it on here for you if you like. tho im very very new to max, so my way might not be 100% correct, but its the only way ive found to get the settings box to come up when selecting my HDRI.

[jfs]

Hey,

 

im in the process of trying to do this exact tutorial, and am stuck with the same questions.

 

but i also found a way to open the HDRI image as a bitmap and still maintaining the lighting info. ill do a step by step tonight and post it on here for you if you like. tho im very very new to max, so my way might not be 100% correct, but its the only way ive found to get the settings box to come up when selecting my HDRI.

 

If your intent is to use the HDR not only as environmnet, but as a light source you should drag it to the VRay Render Settings - GI environment (skylight) override max default environment ON. Then you can use the value multiplier (VRayHDRI case) or the Output - RGB level (Bitmap - HDRI case)

[drvox]

Woow that would be very nice.. i'm stuck with that. Thanks a lot!

 

 

 

I do also have the problem with vray glass. I've tried that tutorial settings, also tried Joao settings and nothing happens

 

Well, here's what I've just found out:

 

These are files from autocad which were not created by me. I've done the File Link manager to merge the scene in a 3dsmax scene. There is a layer called Glass to which I apply the vray material. Since I've created a new scene and the glass settings worked I suppose the problem is with the Glass layer or something about the autocad file. If i aplly a concrete material it works fine but with glass it appears all black. Does anybody knows something about this? It's wreid...:S

 

Thanks a lot.

[jfs]

These are files from autocad which were not created by me. I've done the File Link manager to merge the scene in a 3dsmax scene.

 

I dont know how the file link manager works because i use DWG's just for reference and model things inside max only. Do you realy need the files to be linked? If not try import the DWG geometry (without the file link manager) and hide the autocad glass layer. then start testing with planes for glass made inside max. I really dont know if this is the reason but at least you should be able to see if is a file link manager problem.

 

good luck

[drvox]

Finally found out what's wrong. Thanks a lot João.

 

Pict 1:

 

autocad file with vray glass applyed to Glass Layer.

 

Pict 2:

 

Hidden Glass Layer, and same material applied to those 2 boxes in the living room sliding door.

 

I'll have to create all those glasses but the problem is solved

 

Thanks all

[jfs]

Looking much better now! Good luck with your work

[guitarboy]

Sorry, im not trying to highjack your topic, im just wanting to show how im going because ive been having the same probs and im doing the same tuts. This is my first go a VrayHDRi lighting and reflections. im using the HDRIs for my lighting and reflection so far, havent used it in the environment slot, ill try that out tonight to see if i can get better results.

 

these are just a few quick renders i did last nite. Any comments r welcome as they will porbably benfit both of us.