3ds Max PBR material setup still trips people who grew up on Blinn and a specular color swatch. Modern Max (Physical Material) and current Chaos materials expect metalness-roughness maps. This walkthrough covers bitmap gamma, renderer-specific nodes, and resolution for archviz stills. Use Locker3d as the free CC0 source so the library is legal on commercial jobs.

Pick the right material type

For Arnold or the native Physical renderer, use Physical Material in Metalness mode. For Corona 8+, use Corona Physical. For V-Ray 5/6, use VRayMtl with the PBR / metalness option enabled (names vary slightly by version). Do not mix an old Standard material with a roughness map and expect energy to stay sane. Create a compact Material Library of wood, concrete, and metal from the Locker3d catalog so every artist starts from the same slots.

Bitmap slots and gamma

Add a Bitmap (or Corona Bitmap / V-Ray Bitmap) for each file. On load, Max asks for gamma:

  • Albedo / base color: gamma 2.2 (sRGB). No baked shadows.
  • Roughness: gamma 1.0. Invert only if the file is glossiness.
  • Metalness: gamma 1.0. Nearly black for wood and plaster.
  • Normal: gamma 1.0, then a Normal Bump, Corona Normal, or VRayNormalMap. Check flip green if lighting inverts.
  • AO: gamma 1.0, multiply over albedo in the shader if you use it.

If you skip the override and leave “Automatic,” some data maps get 2.2 and look crushed. This is the Max version of Blender’s Non-Color flag. The same files should already work in Blender if you follow the Blender PBR guide.

UVs, Real-World Scale, and tiling

Archviz in Max often uses Real-World Map Size. Measure a plank or a tile in centimeters, then set bitmap Size so 40 cm oak looks like 40 cm oak. Randomize UV offset on nearby identical chairs so the knot does not clone. For messy CAD, consider a Box mapping or a triplanar-style map in Corona/V-Ray rather than stretching NURBS leftovers. Seamless Locker3d tiles are built for this; unique photos are not.

Renderer notes: Corona, V-Ray, Arnold

Corona Physical: roughness is roughness; bump and displacement have separate strengths—do not max both. V-Ray: reflection color on metals should come from albedo/metalness, not a leftover white specular. Arnold Standard Surface: specular roughness matches the roughness map; metalness is a dedicated weight. All three want linear data maps. If a metal fireflies, raise roughness slightly and check the HDRI. Map definitions are in the PBR complete guide; legal use of Locker3d is in CC0 textures.

1K, 2K, 4K and scene hygiene

A tower of 4K bitmaps will chew RAM before the first bucket. Use 1K on screws and distant brick. Use 2K on typical walls and furniture. Use 4K on the floor the camera tracks. Instance materials; do not duplicate bitmaps per object. Locker3d is a free CC0 PBR library, so you can keep 4K masters on the server and proxy 2K in the working file. New users can read PBR textures for beginners and more Max-oriented notes on the blog.

Frequently asked questions

How do I set up PBR textures in 3ds Max?

Use Physical Material (or Corona Physical / V-Ray 5+). Connect albedo to Base Color / Diffuse, roughness to Roughness, metalness to Metalness, and a normal map through a Normal Bump or renderer-specific normal node. Set gamma 2.2 on color and 1.0 on data.

What gamma should I use for PBR maps in 3ds Max?

When the bitmap loads, set albedo to Override 2.2 (or Automatic with sRGB). Set roughness, metalness, AO, and normals to Override 1.0. Wrong gamma is the usual cause of plastic wood and dull metal.

Which resolution should I use in 3ds Max archviz?

2K is the default for interiors. 4K is for hero floors and close counters. 1K is enough for distant facades and small hardware. Matching all maps in a set to one size avoids soft normals.