BC4-1810Homework Leonardo Jimenez

Wow, 4000 samples wasn't enough to clean the noise? That's surprising to me..I've never needed that many samples before. Then again I've not explored volumetrics too much. Typically the splotchy spots come from the denoising algorithm not having enough samples to work with. But 4000 should be plenty. Hmmm...

Your toy truck looks pretty good but the environment and floor appears to be completely desaturated (white and black). Kinda looks like that photo filter that keeps the focus in color while desaturating everything else. Is that the goal?

Did you do the night time scene?

llejimenezro Ok maybe saturate the HDRI toward a blue hue to achieve more of a cold feel. You're on the right track for that mood!

gradyp Hmm possible light paths could help the situation. Though typically more light paths takes longer to computer and thus longer to clean the image in my experience. But perhaps lowering the light paths is the way to go. That's dangerous for interior renders, since they need every bounce to realistically emulate light. May be worth a shot though.

If you want to provide a download link to your .blend file llejimenezro we'll take a closer look at your settings.

llejimenezro Good work this week. I applaud your initiative to do a day and night version of your vehicle. Here's my notes:

1. Both renders are on the dark side. The day time scene's sun doesn't feel nearly bright enough. The sharp shadows on the ground suggest it's a bright sunny day but the intensity isn't there. In the night scene, yes it should be dark, but it should also be visible what we're seeing. Even for artistic license I recommend you brighten the scene beyond reality for the sake of visibility. You can convey darkness with a blue-ish color too rather than with black. Here's some quick levels adjustments and color balancing to illustrate what I mean:
   
2. No apparent reflectivity. I don't know if it's the darkness making reflection invisible or what, but I see no strong evidence for any reflection in the scene. No reflection is a big negative for realistic and believable lighting. Remember "everything is shiny" as that guy on wikipedia said.
3. Contact shadows: Currently your render is lacking contact shadows which are crucial for making it look like objects are in close proximity and/or touching one another, like wheels to ground. I recommend A) turning on contact shadows for your light(s) and B) enabling AO (ambient occlusion) in your Eevee render settings.

Still I like the effort in these renders: It's a B for this first half of the homework.

I think you're really close with the light match. Lamp values, hues, saturations, and positioning look pretty spot on. The only note I have is again about contact shadows. In the image below, notice the darkening that's taking place on the left where two objects touch / intersect:

It's a B+ on the light match for me. Good work overall, Leonardo!

llejimenezro Solid work this week, Leonardo! First thing I notice about your goblin render is the rim light is strong. Might just be me, but I always like a strong rim light. I've got a couple notes:

• While the rim light effect is strong, it also seems to be achieved mostly with the fresnel trick. Especially on the left side of the model I don't see much evidence that a rim light lamp exists. If the fresnel is used as the primary rim light effect, it's far less realistic than if it's used to emphasize the existing rim light.
• There's no interaction between the color of the character and the background. In other words, the character feels cut and pasted over the background as opposed to them being rendered in the same scene. Generally I recommend that they feel rendered together; that they light interacts with them both.

It's a B+ from me 👍

Your light match looks very close but in both, everything is very dim. Both images are using such a small portion of the value spectrum. In this level graph, all the date is on the far left (low) value spectrum and it's using none of the upper 2/3rds:

Look how much more appealing and discernible they are when using the entire spectrum:

As for comparing them, the red and blue light seem to mix and mingle better in the source than in your render. In yours the red seems isolated to the bottom half of the model only and the blue isolated to the top. Whereas in the source there's clearly red light spilling on to the characters face as well.

A fairly small note, all things considered. Another B+ from me.