Lele's Vray Tools
A set of tools to aid in the daily VRay work.
Updated for VRay 1.5 SP2.
Matrix-Weighted Exposimeter V. 1.19 : very
similar in principle to that of dSLR, it allows for different weighting
of each slice/square in which the image is divided, as well as allowing
a different range of pixel brightnesses to be chosen for the exposure
(akin to real world lens filters).
Entirely customisable for
behaviour.Now with auto-white balance and preset manager!
From V. 1.16 it supports exposure / White Balance animation through the script.
Please note this is
not meant to be a frame by frame tool: doing so will result in
flickering (like for standard dSLRs) and will likey lead to max crashes
due to maxscript memory heap overload.
Keep previews small, Nth frame at around 1 second, and go in and refine
by hand activating "Auto Key" from the max interface and exposing the
problematic areas.
UPDATE:
The Sample Rate calculator, new with 1.19, is an early attempt at DMC AA optimisation.
It will render a sample pass with whatever DMC AA (ONLY!) settings you
have, analise the sample rate, and guestimate a new threshold value (AA
noise threshold only) so that the BIAS setting may be met (+- 2.5%).
The BIAS indicates the pixel brightness average in the sample pass (where ~0 is min sampling, and ~1 is max sampling).
Physcam Auto-Focus:Finds the closest object surface directly in front of the camera, and focuses the VRay Physical Camera to it.
Added DoF Preview rendering (near-realtime) for Physical Cameras which have been created with the Physcam Converter Script (so physical cameras parented to, and overlapping perfectly, a standard one) .
The function works only under Max2008, due to the fact that previos viewport grabbing methods would refresh the framebuffer before grabbing, losing the DoF effect. Implementation for earlier versions is possible and under study.
A drawback of the new grabbing method, though, is that you'll have to have the current viewport (the one selected just before pressing the script button, any viewport will do.) free of dialog boxes and such, as the grab will read from video memory and grab those as well.
For this reason, the script now pops up in the BOTTOM RIGHT CORNER of your screen, away from what's normally the camera view.
Please note that the preview is NOT accurate as to the Physcam. It's just meant as a visual queue to understand where the camera has focused.
VRay Realtime Sky V.1.01: Allows realtime update of the VRay sky in viewport, through any change of sun position or parameter. Changes the Sun intensity for DISPLAY ONLY, not at rendertime, to allow for sky visibility without a Physical camera exposure. IMPORTANT NOTE: it's strongly suggested to keep the Background Texture Size at something like 256 in the vieport driver preferences to obtain optimal realtime performance. If updates seem sluggish, slow, or impossible, that's what you want to change.
Updated the to refresh the viewport as soon as it's activated, and changed the viewport-only multiplier to 0.02 to better reflect the default Physcam camera exposure for the new Vray Sun and Sky models.
VRay rendertime infos 1.2:
Shows some useful settings while vray is rendering, to allow for easy
troubleshooting of scenes that seem to render for "too long", without
interrupting the rendering phase
Now with material interpolation min/max settings.Added in some GI options (don't render final image, GI modes and so on)
VRay Light Monkey V0.3 : allows for mass change of vray light's properties, for selected or all, in very quick fashion.Updated for 1.5 Final-sp1
VRay stuff collector V.1.1: Collects VRay specific
objects and maps (proxies, VRay HDRI maps and so on) along with the max
file and normal maps into a folder
Now with support for IES profiles
Anything to Physcam : converts max standard cameras and viewports to VRay Physical Cameras, along with FoV animation.A bug is present when converting a Camera View to physcam, will try and fix it asap.As a workaround, select the camera and conver it through the "convert camera" button.
Physcam parameters cloner: allows for quick copy/paste operations on VRay Physical Cameras
Physcam Presets Deck: Similar to the one above, but with a neat
12-slots deck which is session persistant and immediate in its usage
PPT/LC calculator: Expresses sample sizes in pixels (rather than normalised image ratio) and subdivs as shading rates (rather than absolute numbers)
Unpack the rar file into a temp folder, and RUN (it's not an i-drop package. use "maxscript->run script") main_installer.ms.
Check/uncheck what scripts you want installed, choose to deep-delete old files if you're on max 9 (useless in max 8), and press the install button.
You'll then find them into the "Customize->CustomizeUI->Lele's
VRay Tools" category, and will be able to assign them to a menu, a
button, a quadmenu or a keyboard shortcut.
Remember to save the UI configuration after you've done so, so to preserve the assignments on the next max run.
The scripts are released as donationware: if you like them, and/or use them for a commercial production, make sure you get the "i'm feeling generous" mood going, and drop a symbolic donation at the provided email address on paypal.


MaxCam_2_PhysCam doesn't
MaxCam_2_PhysCam doesn't work on my MAX8 SP3. When trying to convert a max camera, MAX freezes and exit. Am I the only one?
Any chance of getting this issue fixed?. I'd really thank you, Lele.
Hello Drake, and thanks for
Hello Drake, and thanks for the pointer.
I am aware of an issue (cascading into another...) with the script which is due to the physcam not liking its target to be fiddled with and producing a max crash.
To solve this i had to code a small hack, which returns the second issue: the animation of the original camera's target gets lost upon conversion.
To fix these, i am waiting for the final release of VRay 1.5, so not to have to do some obscure twiddling to the code to adapt it to a known bug.
This said, there may be some silly bug still hiding here and there, even though aside from the aforementioned one(s) you're the first i hear that gets crashes.
It's been tested well only under RC3+, as of now, but if you feel it may still be the script, please mail me the scene and some infos at "emanuele dot lecchi at gmail dot com" and i'll look into it asap.
Thanks again for the report,
Lele
I have tested here on max8
I have tested here on max8 sp3 and it works exactly as expected. (non animated camera)
Thanks again Lele
Anything_2_Physcam
Anything_2_Physcam Rewritten
I rewrote the code for the Physcam Converter (anything_2_physcam) so to better handle animation.
Also strenghtened the script generally, and removed previous hacks which were needed in previous RC versions of Vray.
It now comes with an interface, tooltips and a "quick help" button.
Allows conversion of selected, or all cameras (if none is selected), or of the current view, whatever the type is (orthogonal, perspective or camera view).
It's also able to match FoV animation in a number of fashions: Creating linearly interpolated keys where the original keys were (in which case it will lose any non-linearly interpolated ease that was give to the curves, eg. bezier handles); Using the same controller type a the original camera, but NOT copying over every key parameter (hence the animation may not match exactly, but should be in most cases very close), only time and value; Baking the animation per frame on the Physcam FoV , representing the original FoV animation very precisely, at the expense of some weight on the scene, unnoticeable but for the most massive of conversions.
So far, not one max crash due to the previous issues.
Please provide any feedback (issues or suggestions, preferably...) as to its usage.
Lele
ps
Thanks, everything works
Thanks, everything works like a dream. The installer make life so easy!! Keep it up Lele.
Cheers
Renato
Hello Lele, i have a
Hello Lele, i have a question for you. In you vrimg converter, why the VRayZDepth is not recognized? And why the mtlID, RenderID and ObjID is not convert to exr?
anyway, thank's
Another question for the
Another question for the vrimg2exr.exe program. What's the -datawindow option? Why in you exporter not exist?
Thank's
http://www.scriptspot.com/blo
http://www.scriptspot.com/blog/lele/me-and-my-bugs
This answers (not!) why the converter has those issues.
It was written on rc2, but in the further RCs something must have gone wrong with it, as the tool seems to be in a state of active developement, at a much quicker pace than i can follow with my free-time scripting...
Chaos promised to release its own converter interface pretty soon, so this one is left at the very back of time allotment.
My suggestion is to use it for what it can do, and then simply export by hand whatever channel gets skipped by it.
Of course, should i find time to update it (it's a hell of a lot of code to wade through, for simple a tool it is) you'll know through ScriptSpot.
As to for what any option does, you can simply run "VRimg2Exr.exe" without parameters in a dos window, and it'll output an help page.
It's not in the converter as it's been added after i coded it.
It's best if you ask the question regarding what it does in the chaos forums, as i haven't yet looked into it, and from the look of things, won't be able to do so in a while...
Lele
Thak's Lele, now it's much
Thak's Lele, now it's much more clean.
Just fixed the silly mistake
Just fixed the silly mistake with the matrix exposimeter's presets.
They now load properly.
Also, i gave up on the maxscript interface for the VRimg2EXR.
Way too much work, and it will be soon replaced by the Chaos' own made one, i reckon.
Lele
Hey Lele, this tools are
Hey Lele, this tools are amazing, but I'm havin problems with the maxcam 2 PhysCam. I've made the button and so...but when I click..it doesn do anything. I'm using max9and vray 1.5rc3.
Help plz
And keep up the good work!^^
Make sure you used the
Make sure you used the main_install.ms script to install the pack, or nothing will work as expected.
Check that VRay is the current renderer.
Most tools check that before even starting.
Once this is all done, simply drag the commands from the Customize UI interface onto toolbars and such.
Should this not fix it, try and mail me the contents of the maxscript listener after you try and run the script.
Lele
Hi Lele. I've downloaded
Hi Lele.
I've downloaded your video tutorial about VRay Sun, Sky and Physical Camera and I must say that I was very happy seeing that your concept works.:) Thank you so much for sharing it with us.
Now, what I wanted to ask you is where can I get your latest script VRay_Physical_Mats_Converter (I've tried the link posted on ChaosGroup forum, but it looks dead).
Thank you again for your support.
Best regards,
Adi
http://www.scriptspot.com/lel
http://www.scriptspot.com/lele/VRay_Physical_Mats_Converter_v1.1c.ms
This seems to work here...
Lele
Now it works. Thank you
Now it works.
Thank you again for your support.
Best regards,
Adi
P.S.: I'm looking forward to see your tutorial about interior rendering :)
Hi Lele, I am testing your
Hi Lele,
I am testing your exposimeter with max design 2009 (64)+VRay SP2 (64)+xp64. Everything seems to work fine with the exclusion of the "exposure-only GI settings"; when "QMC based" is selected the script returns this error:
Unknown property: "qmcgi_subdivs" in V_Ray_Adv_1_50_SP2:V_Ray_Adv_1_50_SP2
I suppose someway related with QMC vs. DMC inside maxscript
just to notify it
a.
I thought i fixed that a
I thought i fixed that a while back, but it's evident something slipped.
Thanks ever so much for the pointer, will look into it ASAP (atm i have no Pc to do script dev on, it will take me a week or so to get sorted).
Lele