In these lesson I’ll talk about Final Render and Post Production:
How to use Render Elements and how to composite the layers in photoshop.
Contents for this lesson:
- 2 HD VIDEO LESSON (42′ narrated by a Licensed V-Ray Instructor)
- How to use Reflections render element
- How to use VRayLightSelect render element
- How to use VRayExtraTex for Ambient Occlusion
- Affect channel option
- Final settings for a clean render
- Composite all layers in photoshop
- Create a Daily lighting
- Create the Golden Light in seconds!
- Download the minimalexterior-file to start the exercise
- Download the complete materials-file to check the settings
- Download PSD files to check how layers fit togheter
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* STEP 4+5 | DAILY LIGHT *
Until now we just rendered 1 single image: the main render (RGB Color render)
Actually we can render al lot of “aspect” of our image such as reflections, refractions, specific lights etc… there are 20 different renderable elements! In this video I’ll show you how to prepare 3 render elements (Reflections, LightSelect, AmbientOcclusion) and how to manage these layers in photoshop to produce a final daily image:
CONCEPTS:
- Add VRay Reflection render element
- Add VRay Light Select render element then choose the lights to “extract”
- In glass material Use Affect Channels > “All Channels” if you want to get lights behind the glass
- Click  “Save all image channels” to save all the layers in 1 click
- Use VRayExtraTex with VRayDirt to procude an Ambient Occlusion pass
- If you just want the AO turnoff GI, turn off reflections and maps in order to get it quickly
- Hide glasses to get the AO behind them (no other ways are possible for now)
- In Photoshop: use LightSelect layer in Screen mode
- Use an exposure layer (with clipping mask) to control the light intensity
- Use Reflection layer in Screen mode
- Use AO layer in Multiply mode
- Reduce the opacity for AO and delete the dark corners to avoid fake effects
* STEP 4+5 | GOLDEN LIGHT *
The Golden Light is the magical moment of the day: Â Download this pack to see some example!
In this video I’ll show you how easy is simulate golden light with V-Ray, and how to create a nice sky replacement with a touch of green.
CONCEPTS:
- VRayProxy is a way to externalize “heavy” 3d models and save memory
- This allow to avois crashes and render milions of poligons
- To create a Proxy: select the 3d model > right button > V-Ray Mesh Export
- Flag “Automatically create proxies” option
- Faces in preview affect the details just for preview, not for render!
- The Golden Light used a cult photography. We need the sun near the horizon
- Put the V-Ray Sun at 1,5 meters from the ground (more or less)
- Put the V-Ray Sun almost behind the camera – This is a rare exception!!!
- Tune the exposure controlling shutter speed value
- Use the tree to projecting beautiful shadows on the walls, this a must with golden light 😉
- Save the image twice: PGN file (without the sky) Â + JPG (wuith VRay Sky)
- Use the image with sky as reference to find a good color for the new sky
- Use Curves and Hue Saturation to get closer the “original” sky. Do not be perfectionist.
- Use Green channel in Curves to give a liiiiittle green dominant to the sky
 Exercise
You have to:
- add render elements
- prepare the scene for the final render
- Save the layers and composite in photoshop
- Create Daily Light
- Create Golden Light
In the following link there’s a scene complete with lighting, texture and all materials.
Download it and carry out the exercise as indicate above.
For any doubt consider to check the solutions:
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hi Ciro Sannino
as usual you are the best. I have a problem with vray proxy when I make an object disappear proxy textures rendering. how to fix this?
thank you
Hi soufiane,
you mean that when you crate a proxy the texture disappear in the final render?
Sir,
How can i upload my project files or rendered images here
Hi Malik, do you want to subimt your images for the gallery?
It occurs when you import the vray proxy without importing the materials. the VRayProxy itself does not contain any information about material, and I suggest you to save a .max file with material applied to it for future use. I hope it helped you, thanks!
Wow, that’s a good technique!! and very good explanation, now i am really learning vray, i was tired of the crappy tutorials that there are in the internet, you really know how to do it. Thanks a lot! by the way, what do you think about the combination of vray sun and vray dome light with hdri?
hi walter, basically hdri should contain also sun “information” so the hdri is all you need. Anyway you can combine them to customize the effect you want but there’s nospecial rules I can give you. Just follow your taste. So your question: can i use sun + hdri? the answer is “yes of course you can”.
hi ciro,
wow…. this is what i’m waiting for, your golden lights.
thanks!
As always, superb! Thank you
Ciro, how about the internal Ambient Occlusion Pass in VRay? It takes more time to render than ExtraTex?
Hi Marcos, is pretty the same but that’s no comparison! With ExtraTex you have a separate channel (much more better!!!), with the “internal” don’t. Probably there’s some difference in terms of time to compute but the BIG difference is have or haven’t separate channels. Of course saparate channels is the best solution.
TQ…nice tutor…really awesome…waiting for years finally yeahhh.
Hi, you make me change from mental ray, to vray. The possibilities are endless and the way of working realy speed things up, so all i can say is thumbs up.
grtz
render id is not getting in VFB for compositing in photoshop
Hi Antony,
can you be more specific please?
Hei Ciro,
All of your lesson is wonderful and easy to understand,,, great job…!
When I rendering the final V-ray Extra tex , the entire area of image got noise ( like rendering with minimum noise threshold) with all rendering set up as per your lesson.
Thank you,
Najith
Hi Najith,
the Ambien Occulusion image could be with noise, don’t care. You have to put this image with a little % in multiply blending (in photoshop)… as shown in the lesson. Only after this step you can judge your image and I’m sure the noise will be invisible.
i love the way you hate the corners of the AO…
and it’s a fact… it’s not real…
Dear Ciro,
When I am saving RGB ,Alpha,and other render element image ,RGB image is saving tooooo bright.But i can see RGB image perfectly in VRAY FRAME BUFFER Window.Plese try to help me.
Hi Venu, are you sure you have gamma output 1,0 in preferences?
Thanx Ciro, the best as always, I’m trying to put a multitexture floor taking advantage of the concrete textures you have, but in Vray RT doesnt show up, there’s a way like the proxies to be able to see it? thank you
Yes, we can’t have previous for now 🙁