Baked textured quality look doesn't match

[vesta]

Hello
I'm testing the export workflow of a baked texture object.
I test a simple cube, I UV uwrapped it and exported the texture map with camera baking tag selected but the material quality doesn't match, when I render the cube in standard mode looks awful. I attached the two cubes (octane one and standard result) for comparison.
thanks a lot!
Peppe

[frankmci]

With a simple one-shot bake like you are doing, you're including illumination info into the texture, as well as the color. Try killing all your lights and piping the baked texture into a black Diffuse Material's Texture Emission slot, and bring the Emission power down to 1.

On the left is the source scene, one material, one light source. On the right is the same scene with three materials, each flat black with the baked textures driving surface emission, and no other light sources.

Simple Baked Scene

You can do multi-pass baking to break out the illumination, diffuse, etc into separate layers, but that's a bit more involved.

[vesta]

thanks a lot for reply, very helpful.
Well, it's the first time doing this kind of things, just a couple of questions:
First I did UV UNWRAP of the whole scene geometry, then with baked camera option on I exported the scene from live viewer, then I cancelled everything beside geometry and applied the texture in standard render mode, now light and shading/shadow works but there is some black wrong parts as you can see from the screenshots attached.

Maybe I'm doing mistakes in UV UNWRAP ?

thanks a lot!
Giuseppe