Panoramic HDRI - Absolute Luminance Calibration v2.1

PANORAMIC HDRI - ABSOLUTE LUMINANCE CALIBRATION 2.0

colour-science.org - February 27, 2020

 

 

This file defines two Gizmos / Groups:

- Panoramic HDRI - Absolute Luminance Calibration: Performs absolute luminance calibration of panoramic HDRI images using Lagarde (2016) method.
- Panoramic HDRI - Analytic Light Source: Computes the illuminance value for an analytic light source accounting for the illuminance difference between two panoramic HDRI images and the light source position in the image using Lagarde (2016) method.

Note that the Panoramic HDRI - Analytic Light Source Gizmo / Group currently uses two hard copies of the Panoramic HDRI - Absolute Luminance Calibration Group, it is strongly advised to replace them with the Gizmo variant in the context of a studio deployment.

Latest version of the file will always be available at this url: https://github.com/colour-science/colour-nuke/blob/master/colour_nuke/scripts/panoramic_hdri_absolute_luminance_calibration.nk

A workflow example file is available at this url: https://github.com/colour-science/colour-nuke/blob/master/colour_nuke/scripts/panoramic_hdri_absolute_luminance_calibration_workflow_example.nk

[1] Lagarde, S., Lachambre, S., & Jover, C. (2016). An Artist-Friendly Workflow for Panoramic HDRI. Retrieved from http://blog.selfshadow.com/publications/s2016-shading-course/unity/s2016_pbs_unity_hdri_notes.pdf

Copyright (c) - 2016-2020, Colour Developers All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of the Colour Developers nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Please login in order to download these files.