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Known issues in Photoshop

In Photoshop 20.x and higher:

  • OpenGL on canvas> model may look different.
  • Material Model> Model could be rendered differently.

The 3-D material model in Photoshop has changed, switching to the 3-D material model used by Substance and Dimension.

  • OpenGL on canvas> model may look different.
  • Material Model> Model could be rendered differently.

The ray tracer hasn't changed, but the material model has, and Photoshop tries to match previous versions as closely as possible. However, there will be files that will no longer look the same because Photoshop treats certain materials differently.

Example: Photoshop switched from “specular glossiness” to “metal roughness”.

Photoshop switches to Physically Based Rendering (PBR). This is a method of shading and rendering that provides a more accurate representation of how light interacts with surfaces.

To create a reflection in previous versions, you just had to set the "Reflection" slider to 100%.

Starting with Photoshop 2019, you have to set the “Metallic” slider to 100% and the “Roughness” slider to 0% in order to achieve 100% reflection.

"Illumination" has been removed, but it now includes "Glow".

These visual changes are expected with the changes to the material model.