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Standard Library - Fresnel VOPs - IPOPs (Image Plane Operators) for Houdini Karma CPU & XPU - MaterialX & Karma Materials.

What are IPOPs?

IPOPs are operator workflows designed to streamline shaders and AOV development in Houdini. With our toolset, artists can easily standardise their networks and access specially developed nodes for various renderers and presets, increasing efficiency and creativity.


The Standard Library

The Standard Library is a set of HDAs that help artists create quick shaders and AOVs and contain useful Utility Nodes such as Fresnel for Karma (CPU & XPU), Mask Falloffs in Shaders etc. The HDA library is constantly updated with new nodes to assist artists in speeding up their workflow and creating a streamlined system thereby increasing efficiency and creativity.


Supported Renderer:

  1. VEX Shaders - Mantra

  2. VEX Shaders - Karma CPU

  3. Karma Material - Karma CPU & XPU

  4. Karma MaterialX - Karma CPU & XPU














Karma Utility Shader

Standard Library

IPOPs Kma X Ray Shader

XRay visualization based on surface normals and incident rays.

Material X Utility Shader

Standard Library

IPOPs Mtlx Camera Facing

Generate a smooth roll-off between surface normal and the camera ray.

Material X Utility Shader

Standard Library

IPOPs Mtlx XRay

XRay visualization based on surface normals and incident rays.

Material X Utility Shader

Standard Library

IPOPs Mtlx IOR Materials

Library of Index of Refraction Values for Materials

Material X Utility Shader

Standard Library

IPOPs Mtlx Reflection and Transmission Light

Calculates the reflection and transmission coefficients (kr and kt) based on the index of refraction (ior) of a material, creating the Fresnel reflection and transmission effects.

Material X Utility Shader

Standard Library

IPOPs Mtlx Reflection Vector

Calculate reflection vectors based on incident rays and surface normals.

Material X Utility Shader

Standard Library

IPOPs Mtlx Transmission Vector

Compute transmission vectors using incident rays, surface normals, and the index of refraction values.

Material X Utility Shader

Standard Library

IPOPs Mtlx Front Face

Returns the front facing normal of a surface, given a surface normal (N) and an incident ray (I).

Material X Utility Shader

Standard Library

IPOPs Mtlx Fresnel

Computes the Fresnel reflection/refraction contributions given a normalized incident ray, a normalized surface normal, and an index of refraction.

Material X Utility Shader

Standard Library

IPOPs Mtlx Thin Film Fresnel

Computes the thin film reflection and refraction contributions given a normalized incident ray, a normalized surface normal, and an index of refraction.

The Standard Library contains over 30+ HDAs and will be available on Gumroad soon!


Subscribe to my Gumroad to stay updated!




FAQ:

  1. What versions of Houdini do you support?Houdini 20.0625 and up (python 3.9 & 3.10.10).

  2. Can I request for special features?Yes! If you require any support or require the setup to be customized to your needs or implemented in your scene, please contact us at support@chakshuvfx.com and we can debug/modify it accordingly.


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