Ops ⟩ Gl ⟩ Pbr ⟩ PbrMaterial

PbrMaterial Op

PBR/Physical Based Rendering Material for realistic materials

Can be used with Ops.Gl.Pbr.PbrEnvironmentLight for image based lighting or with standard Lights found in the op library.

You can drive the settings for your Ambient Occlusion, Roughness and Metalness (AORM or ARM textures) with a single texture or manually adjust the global setting. You can also try compositing an AORM texture in an Image Compose with additive RGB color channels.

Full Name

Ops.Gl.Pbr.PbrMaterial

Visibility

Core Op - Official cables op

License

Author

amajesticseaflapflap

github

source

Test Patches

2 Tests

Credits

Uses BabylonJS Shader Code by Babylon.js
Uses Filament Code by google

Example Patch GLTF Helmet

gltf/pbr example helmet

https://github.com/KhronosGroup/glTF-Sample-Models/tree/master/2.0/DamagedHelmet

Open In Editor

Youtube Video Tutorial

INPUT PORTS

render (Trigger)

Diffuse Color

R (Number)

amount of red

G (Number)

amount of green

B (Number)

amount of blue

A (Number)

opacity of material. Use Alpha Mode to change how this value is used.

Shader Parameters

Roughness (Number)

roughness of the surface

Metalness (Number)

blend F0 between 0.04 and albedo by this value

Alpha Mode index (Number: integer) Opaque Masked Dithered Blend

material opacity mode

Clear Coat

Use Clear Coat (Number: boolean)

add a thick dielectric layer to your material. This layer will ignore the normal map.

Clear Coat Intensity (Number)

Clear Coat Roughness (Number)

dielectric layer roughness amount

Use Normal map for Clear Coat (Number: boolean)

Clear Coat Normal map (Object:texture)

Thin Film Iridescence

Use Thin Film (Number: boolean)

Thin Film Intensity (Number)

Thin Film IOR (Number)

Thin Film Thickness (nm) (Number)

Thickness Tex Min (Number)

Thickness Tex Max (Number)

Tonemapping

Tonemapping index (Number: integer) sRGB HejiDawson Photographic

tone mapping modes

Exposure (Number)

adjust exposure used for tonemapping

Advanced Shader Parameters

Emission Intensity (Number)

Disable geometric roughness (Number: boolean)

don't automatically introduce roughness calculated from screen-space geometry density

Use roughness from normal map (Number: boolean)

calculate screen-space roughness from normals on top of geometric roughness

Use Vertex Colours (Number: boolean)

enable vertex colours then select their purpose

Vertex Colour Mode index (Number: integer) colour AORM AO R M lightmap

when using vertex colours, assign their purpose here

Height Intensity (Number)

influence of heighmap texture

Faster heightmapping (Number: boolean)

toggle to use less precise but more efficient method

Double Sided (Number: boolean)

Lighting

IBL LUT (Object:texture)

generally auto set by PBR Environment

Diffuse Irradiance (Object:texture)

generally auto set by PBR Environment

Pre-filtered envmap (Object:texture)

generally auto set by PBR Environment

Num mip levels (Number: integer)

generally auto set by PBR Environment

Textures

Albedo (Object:texture)

sRGB

AORM (Object:texture)

linear bt.709, R: ambient occlusion, G: roughness, B: metalness

Normal map (Object:texture)

linear bt.709, +Y, TS per vertex

Emission (Object:texture)

Height (Object:texture)

HeightMap input, uses the red channel for height information

Lightmap (Object:texture)

Lightmap input

Thin Film (Object:texture)

Lighting

Diffuse Intensity (Number)

diffuse intensity when using PBR Environment

Specular Intensity (Number)

Specular intensity when using PBR Environment

Lightmap is RGBE (Number: boolean)

toggle if your lightmap is an RGBE format texture

Lightmap Intensity (Number)

intensity of lightmap texture

OUTPUT PORTS

Next (Trigger)

Shader (Object)

Patches using PbrMaterial

Examples
Team
Public
My Patches
My Ops

Changelog

new	created op	amajesticseaflapflap - 2022-01-19 14:34
feature	Added toggle for double sided, which will flip normals when the face is not front-facing	pandur - 2024-09-05 18:26