Ogre 13.3.0 was just released. This release contains some significant feature additions, which we will discuss in more detail below.

For a full overview of the changes, see the changelog.

PBR Material support

The most significant addition is probably built-in PBR support via the RTSS.

To enable the PBR pipeline via material scripts, specify

rtshader_system
{
   lighting_stage metal_roughness texture Default_metalRoughness.jpg
}

The parameters are expected to be in the green and blue channels (as per glTF2.0) and lighting will be done according to the Filament equations.
Alternatively, you can use material-wide settings, by omitting the texture part like:

rtshader_system
{
   lighting_stage metal_roughness
}

Here, metalness is read from specular[0] and roughness from specular[1].

Furthermore, the Assimp Plugin will automatically use the PBR pipeline, if it encounters any PBR maps. This in turn allows correctly loading and displaying glTF2 meshes – as shown in the ogre-meshviewer screenshot above.

Improved Gamepad Support

The Gamepad Support in OgreBites (via SDL2) has been improved. Now the according events are correctly delegated to ImGui, so you can control the UI with your gamepad.

Also additional gamepad mappings can be specified by placing a gamecontroller.txt in the working directory.