FEEDBACK: Post here your take on the old challenges!


Hi jojo.

The lighting is not too far away from Rembrandt-esq lighting setup. It’s 2 vray area lights setup similar to Rembrandt. The difference is I have GI turned on. I should probably turn it off for the more contrast type look that Rembrandt serves. Yeah the shaders do need a lot of work yet, especially the grapes. Takes a long time to try and get the SSS right. Once that is right, I’m going to add noise to the surface as you tend to see in grapes, so translucent parts, and some parts not translucent.

Any more suggestions would be very welcome.

Here is the setup.


Hi all! Will there be new challenges in the future? Really enjoyed them. Here are some renders I recently did from a really old challenge. Let me know what you think! Thanks!


Hello ! Yes, there will be challenges in the future, we are organising new one. About the image, I think that’s more a kind of a simulation challenge :wink: Very funny indeed m it will be useful to see how you manage to create it


Hi everybody,

I’m looking for the scenes of challenges #41 Vanita SSS.
Does anybody have it ? The links don’t work anymore.




Hi guys,

Just have a go at LC 44 Getty Benchmark for the eggs. Simple but hard to finish. Good for Look dev and lighting practice. Here it is :

Done using Blender and Cycles. C&C are very welcome.



@ neon bulb. The yolks looks great, while I do not understand the reflections in the base of the cup (did you added a bit of egg whites?). Just for curiosity how much did it take to render ? Which are the specific of your machine ?
Thanks for sharing


@jojo1975 : Thanks! Yes I put a bit of egg whites just to add a bit of extra things to the image, because without them it felt so bland. It rendered in 6min53secs using Ryzen 7 1700 8core CPU. Surprisingly it rendered slower using my GTX 1050 4GB which took 8mins35secs, seems like my GPU gets slower when calculating complex surface interactions like multiple bounces of Subsurface, Translucency , Refraction and Reflections.


Hi Folks,
In stumbling across Lighting Challenge 34 (XXXIV):

I saw it mentioned that Giorgio Luciano had posted an updated Max file with book textures, among other things. In looking at the thread which collects old Challenge files, the .OBJ seemed both without materials and I see a strange artifact in the walls (see attached image) in any 3D application that I’ve tried thus far.

Might anyone know if a more recent version of that Challenge file - or the Max file I believe was mentioned - that @jojo1975 uploaded happens to be available, please?


Hello ! I’ve searched in my archive but unfortunatly I got only the objs file and I cannot find the max file. If anyone has it I will be glad to add it in the vault. Thanks for letting me know.


Thank you, Jojo - I appreciate your consideration!


Hello! I’m new here. I’m a 3d student from Barcelona, and this year one of our exercises was to work on the challenge 21, the bedroom, hope you like it!


Hello ! and thanks for posting. I think the image looks very good. I will try indeed some variations. As an example, adding a volumetric light from the windows and also a night take illuminating the room using the lamp and moonlight. Those are for sure great exercise! Please share your results!


There is an OBJ and Reference package for this challenge; I’ve personally never seen the MAX version.

Keep in mind that when importing OBJ scenes:

  • they require cleanup of vertices
  • normals need to be verified
  • it may be necessary to ungroup the model to remove undesired geometry
  • uv’s may require cleanup
  • scaling of the model to ensure accurate lighting energy may be required




I am gonna give an attempt to the CGTALK lighting challenge #8 : Haunted Hallway. This challenge is a bit old but it’s never too late to do it.
My goal for this lighting challenge is to train myself with the latest version of Maya (2019), to get my skills updated with Arnold renderer & Substance Painter.
That’s why i have choosen this scene. It’s not too heavy with polygons and objects. I don’t want to spend too much time with many objects to texture.

I want to focus on lighting mood and shading & texturing in order to improve my skills with Arnold.

Please find below the two first renders.

I have made for now simple texturing with basics textures just to get kind of a mood I want for this « Haunted » scene. Also render settings are not highest yet.

I rendered AOVs with Arnold and I did compositing in Nuke. Not a complicated flow for now but it allows me to tweak some passes like I want.

I can now focus on texturing to get something with more variations, dirts, rust, …

Comments & tips are welcome !

See you next !




Hi !

A little update i wanted to share with you before going to work on texturing with Substance Painter.

I added/modified some extra meshes in the scene to populate a bit more and refined some lights, especially flashlight on floor.

Here are the renders :

See you next !




Just wrapped up my year long attempt at these challenges, after putting it off for years. Had an absolute blast, definitely recommend giving it a try. Renders are linked below, using Unity.

Lighting Challenge Gallery

Wrote a blog over on Artstation detailing my process linked here.


Hello, this is for the website admin. It seems, but I might be wrong, that at least this page has been hacked because many images have been replaced by something quite suspicious, to be polite. See above posts. Thank you for your attention. Regards.


This is my first take on the lighting challenges 34 – Interior scene. Modeled by Giorgio Luciano.
I used Maya Software Renderer and Maya basic shaders for this. I strictly followed the reference photo as my goal was to create a god looking render with Maya Software render.
I had a lot of fun doing this one. I learned new things, experimented quite a lot, and developed my own tricks too! It was awesome all-nighters!
I used raytracing for Maya software render and although the result is fine, the render time isn’t worth it. I think using depth map shadows and completely fake reflection will be time effective. Gotta try that some other day.
I am hoping to take this challenge on Redshift again. Yaay!!

Artstation :