Vray gpu 2d displacement

[luisgamino2]

Hi Muhammed

Since i'm working with 16 bits in My textures i have more free vram, how resolution parámeter works on 2d displacement with for example a stone wall from Cg axis textures???

In vray gpu 5.1 for sketchup it says for a bitmaps use the same resolution but if the resolution is 4k or 8k what value should i use???, 250 is by default, but what is enought for a very Nice displacement, and Also if i use a bigger resolution do You think vray gpu is going to take more vram?? Should i use 4000 instead off 250 by default if it is 4k bitmap??? i really like 2d displacement it offers for vray gpu a great tool!!!.

Do You have an example On how this parámeter works with vray gpu.

For example a stone wall using 250 by default and 4000 in another test using a bitmap texture.

For me it works but i want to keep learning about this parámeter the resolution


Thanks in advance

[luisgamino2]

And Also should i Match the resolution that i'm using in the diffuse material slot or should i use the resolution from the displacement map ( kind of a bump map but with blur). I do not use displacement on the material editor, i use the modifier.

Do You think 2d displacement takes less vram than 3d displacement???

I'm rendering in 5k resolution so datails are important

Thanks

[Muhammed_Hamed]

Hi Luis,

Even if you are rendering in 5k Res. it doesn't necessarily mean you need 4k or 8k textures for displacement
You could do a simple test run between 250 and any higher number.. if there is a visual difference, you can then decide if this is worth or not
I mostly use 3D displacement for my work, and depending if the object is close to the camera or not I would decide on the kind of displacement resolution I will use
Whenever I get a chance I will show you an example

Best,
Muhammed