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Roco, the graphic node doesn't help to make more realistic materials, just saves you time once you get used to it, to make more realistic materials you need to fine tune them, you can do so with the menu at your right side, select a material and play with the glossines, or bump or whatever you need to make it look more real.
Also, you could try using the live material data base, drag and drop materials that are similar that the ones you need and play with them to see how they are done.

roco wrote:hello matej, well i don't know use the graphic node, i think so is the way to make more realistic the images, do you know short way to understand the graphic node ?
i'm trying to make one by pathtracing, i will upload soon the image
regards

You don't need to use nodes (Graph Editor), just use the Node Inspector. You already did a great job with materials, just need to add that little imperfections that will make them more realistic (leather fabric - bump, tiles - subtle bump to distort reflections...)

hello kubo, thanks for answer me, live material data base, drag and drop materials ? where i find this option ?
hello matej, still i can't do a image with pathtracing, clsoe the program, i don't know why the error at the close the octane
regards

roco wrote:i can't do a image with pathtracing, clsoe the program, i don't know why the error at the close the octane
regards

Which version of Octane are you using? Try the latest here

the Live DB is on the right side panel in the pre2.3 builds, there you can access materials built by others and uploaded there.

hola kubo no encuentro la parte esa de live que dices para bajar o usar los materiales o donde se hace activa o selecciona esta opcion ?
saludos

En la parte izquierda el panel "outliner" la pestaña "Live DB" debajo te aparecen materiales, si los seleccionas veras como quedan, luego si te gustan los arrastras al "node graph" y los unes a tu modelo, o juegas con ellos con el doble click sobre el nodo para ver como están construidos. Esto por supuesto en la versión pre-2.3_x en la 2.2 no existía.

no puedo subir la imagen que pesa 8.9 mb, porque sería ? hasta que capacidad de imagen se puede subir ?

dejo aqui una pruebe de interior se llama uxmal la imagen
saludos