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What is Ptex map?

Ptex is a texture mapping system developed by Walt Disney Animation Studios for production-quality rendering: No UV assignment is required! Ptex applies a separate texture to each face of a subdivision or polygon mesh. The Ptex file format can efficiently store hundreds of thousands of texture images in a single file.

How does Ptex work?

How Does Ptex Work? Ptex works by applying the texture to each face of the mesh, creating high resolution detail without needing UV coordinates. A Ptex map for your 3D model can literally take just a few seconds to create, as opposed to the traditional UV mapping method which could take hours.

What is PTEX mudbox?

PTEX painting provides a new way for artists to paint texture maps – free from UVs. While UVs provide a way to map your texture from a rectangular image onto a 3D object, PTEX lets you paint directly on the faces of the object itself, no UVs required.

What are UDIM textures?

At its core, UDIM is simply an automatic UV offset system that assigns an image onto a specific UV tile, which allows you to use multiple lower resolution texture maps for neighboring surfaces, producing a higher resolution result without having to resort to using a single, ultra high-resolution image.

How do I create a PTEX file?

In the File node Attribute Editor, browse to the image or texture file you want to save to the Ptex map….Set the options in the Create Map window.

  1. Type a Map Name.
  2. Set Map Resolution to a value of 30 or greater.
  3. Set Start Color to White or Based on attribute.
  4. Click Create.

Do you need to wax after PTEX?

Definitely before waxing. As you thought, PTEX candles are made of the same material as the base is made of… so you want the clean the gouge area of any dirt, debris or wax… if you can lightly sand the area to give the new PTEX material some surface to stick on to.

Does ZBrush support PTEX?

It should be possible to export AUVtiles in format that is compatible with ptex and this feature will be considered for future versions of ZBrush. Its been there since version 2011.

When should you use UDIMs?

UDIM is justify when you need to have gigantic resolution on a character or props, and when you have to texture paint it for unique detail. UDIM is the answer to this it allow you to paint on a character but instead of storing the painting into one texture, you store into multiple texture of lower resolution (2K,4K).

What does UDIM mean?

UDIM stands for U-Dimension. UDIM is a way of creating a single linear number that identifies each integer block in UV space. You do this by defining a limit on the number of patches you can use in the U direction (the U-DIM) and then resetting U to 0 and incrementing V by one after reaching that number.

How do you use PTEX in Maya?

Previewing Ptex textures

  1. Select Renderer > Viewport 2.0 to switch to Viewport 2.0.
  2. Select Renderer > Viewport 2.0 > . Your Ptex information will be baked into a 2D Texture.
  3. Assign a File node to the surface shader of the object.
  4. Click the browse button in the File node and select your Ptex file.

What do you need to know about Ptex?

Ptex (Per-face Texturing) is a texture mapping system developed by Walt Disney Animation Studios as an alternative to traditional methods of texture mapping. Ptex addresses various issues associated with traditional texture mapping by eliminating the need for artists to manually create UV maps.

Why are there no UV patches on Ptex?

With Ptex, UV patches are no longer a valid concept since there are no explicit UVs associated with the model. As a result, UV patches have been replaced with a UV atlas of Ptex faces.

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