Houdini 20.0 Solaris

Render statistics

How to view various statistics about the render process of an on-going render or rendered image.

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Overview

During rendering, Karma saves a variety of statistics about the render process. When the render is completed, the husk render utility saves the statistics as metadata in the rendered EXR image.

You can extract and view the render statistics for on-going and completed renders using the following features.

Render stats sidebar

In the render gallery viewer, double click an image or on-going render in the render gallery to open it in the viewer, then click the render stats icon to show the render stats sidebar.

You can also use the render stats sidebar in the standalone image viewer (MPlay).

In the render stats sidebar, you can press ⌃ Ctrl + = and ⌃ Ctrl + - to zoom the size of the stats graphics. You can press ⌃ Ctrl + 0 to reset to the default zoom level.

Render report

The renderstatsreport utility generates an HTML render report that lists statistics extracted from a rendered EXR file (Learn more).

Render overlay utility

The renderstatsoverlay utility generates a (possibly resized) JPG or PNG with render stats burned into it (Learn more).

The utility has options for various ways of burning the stats into the image.

Extracting render stats from an EXR file as JSON

You can extract the raw image metadata from an EXR as JSON using the iinfo utility included with Houdini:

iinfo -J example.exr

Solaris

USD

Geometry

  • SOP Geometry I/O

    Details of how Houdini converts SOP geometry to USD, and how you can control the process.

  • Component Builder

    The Component Builder tool puts down a network snippet for creating a USD model from SOPs, with support for materials, variants, payloads, and layering.

Layout

  • Edit node

    Interactively transforms prims in the viewer. Can use physics collisions to position props realistically.

  • Layout node

    Provides tools for populating a scene with instanced USD assets. You can place individual components, paint/scatter components in different ways using customizable brushes, and edit existing instances.

  • Custom Layout Brushes

    How to create layout brush digital assets you can use to customize the behavior of the Layout LOP.

Look Development

  • MaterialX

    Houdini has VOP node equivalents of the MaterialX shader nodes. You can build a shader network using these nodes, or import an existing MaterialX-based shader, and use them with Karma (Houdini’s USD renderer).

  • UDIM Paths

    You can encode different tiles of a texture space into different texture files, each with its own resolution. You can then specify a texture filename such as kaiju.exr, and Houdini will replace the token with the specific tile address at load time.

  • Shader Translation Framework

    Describes the Solaris shading framework, including shader node translation to USD primitives.

Karma rendering

Tutorials