Sempre sonhei em começar a desenhar modelos 3D, mas não sei qual programa usar?

Depende muito do que voce quer "desenhar" em 3D. Existem softwares mais técnicos, como o Sweet Home 3D, e outros voltados para uma parte mais artística, como o Blender. Então, oq vc quer desenhar?

Whoa, that's pretty good!

You could try this:
- select all in your home
- export the selection to OBJ format
- edit the MTL file where you'll change the number following [font=courier new]illum[/font] by [font=courier new]0[/font] to get lines [font=courier new]illum 0[/font]
- import the exported OBJ file as a piece of ...

The default YafaRay worked fine. I installed the 2 rendering updates; the newer YafaRay (which is problematic for me) and the advanced rendering using both YafaRay and SunFlow. I like the Sunflow better. It seems to handle textures better than the newer YafaRay, which fractures some model surfaces ...

Is there a way to render materials or objects just in flat colors, like in Sketchup (image below), so i can use the magic wand selection in a image editor software?
The reason i want to do this is to make post-processing easier in complex scenes.
Thx!

https://th.bing.com/th/id/OIP.qke2DDGM5Dbfa ...

Why Sweet Home 3D chose a (in my researchs) dead renderer like SunFlow? It does the job for me, but it seems like it's last update was back in 2007, then why not migrate to another open source renderer?

I know SH3D main objective isn't to create photorealistic images, and i'm very satisfied with my tests so far, but if there is a way to let us use PBR's maps, like bump, normal and roughness (even if they are small in resolution), please do it, Devs. THAT would be a game changer on this already ...