Pickup Truck 7134

Arjey

Really a nice model, BUT... the tiling of the outside color (of the old car) is set to 6/6 what makes the colorization unusable. The chrome color is unusable too - rendering it, gives a plain grey surface, what especially for the old car is bad.

ok, these issues are not a big thing, i can correct them by myself. Really bad are the wheels - simply plain, no profile at all. It seems, that the artist lost his interest after creating the car and before creating the tires. What a pity for this nice item!

Have fun

Rolf 

scorpio

Are you by any chance rendering a 3dl only item in Iray?

fastbike1

It is a very old model. All material presets arr for 3DL

Arjey

No problem with 3dl, but the poor tires are not an issue of 3dl/iray...

chris-2599934

If the tires have displacement maps, they won't work well in iRay. It's hard to see on the promos what detail the tires have (if any). What is clear is that the person who made the truck didn't know how to do metallic surfaces in 3DL, so it'll look even worse in iray. Hopefully the surfaces are done in such a way as to make it easy to apply new shaders.

The product is this one, by the way: https://www.daz3d.com/pickup-truck

NorthOf45

Displacement maps are used on the tires, and work well in 3DL, but in Iray, the effect is terrible, looks more like the tires are disintegrating. Turn off displacement, and put the displacement bitmap into the bump channel, and dial in the amount you want. For the rest, best to convert to Iray and tweak the settings, or use shaders on the metal bits. The chrome parts, for example, convert with metallicity at 0.0, so surfaces will need some tweaking.

Here are a couple of quick renders to show what I mean. The dirty chrome was made using the old reflection map as the metallicity and base colour maps, tiled 5x5, metallicity 1.0

Sven Dullah

Interesting to see those Iray renders! And I agree with chris-2599934, those promos are pretty bad looking, so decided to have a go at it with 3Delight. Found out that, for a physically plausible workflow, we would need roughness- and specular maps for the rusty car body, maybe normal/bump maps too. Those rusty parts should be slightly dented, right? And less shiny? Will try to make something in GIMP from the diffuse map... @NorthOf45, tks for the tip on the reflection map, yes I used it as a metalness/roughness map, although didn't change the tiling, and skipped the diffuse altogether. The bump on the tires works surprisingly well in Iray, by the looks of it:)

All in all, a nice model IMHO, fully rigged and quality mesh!

Sven Dullah

Ok, made some control maps (roughness, bump, displacement, specular) for the car body...was fun:)