peppermint

straightforward Filament-based PBR shader targeting Unity's BIRP and URP pipelines, intended for VRChat/BasisVR avatar usage.

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"features"

• Filament based
• ORM workflow
• birp: Light Volumes support
• birp: LTCGI support
• urp: APV support

ORM?

ORM maps (also referred to as ARM maps) are a common format for packed textures to be used on game-ready assets and materials

these maps are packed to an image (like any other map) with RGB channels referring to:

• R: Ambient Occlusion
• G: Roughness
• B: Metallic

peppermint doesn't have a built-in UI for packing your own ORM maps, there are many available texture packers/baking tools for Unity (and Blender) on the internet to use, such as:

• blender: SimpleBake
• unity: unity-texture-packer by zynres
• unity: Pumkin's Avatar Tools

notes

features are sparse, this is meant to be a personal usage shader first and foremost; feel free to open issues/prs with reasonable intent.

this shader is meant for "client" usage, a.k.a. dynamic player objects/avatars; it does sample from light probes and additional dynamic-lighting systems (refer "features"), but it does not sample baked world lightmaps and should not be used for world projects.