The Persistence of Vision Raytracer (POV-Ray).

This is the legacy Bug Tracking System for the POV-Ray project. Bugs listed here are being migrated to our github issue tracker. Please refer to that for new reports or updates to existing ones on this system.

Attached to Project: POV-Ray
Opened by Christoph Lipka - 2009-05-08
Last edited by Christoph Lipka - 2011-02-07

FS#10 - Add support for specifying input images' gamma pre-correction

Input image files may have been created with gamma pre-correction for some specific target gamma, which may vary from image to image. Some file formats like PNG or HDR support embedding gamma pre-correction information in the image file, but this information may be missing or faulty, and some formats don’t support it at all. Additionally, it may be desirable to tamper with an input image’s gamma for artistic reasons.

Therefore, I suggest adding a means to explicitly specify input images’ originally intended target gamma on a per-image basis, like:

image_map { jpeg "MyImage.jpg" assumed_gamma 1.8 }
Closed by  Christoph Lipka
Monday, 07 February 2011, 11:04 GMT
Reason for closing:  Implemented
Christoph Lipka commented on Thursday, 17 September 2009, 23:00 GMT

Implemented with change #4890. Syntax requires some bit of finalizing.

Christoph Lipka commented on Saturday, 19 June 2010, 01:10 GMT

Modified syntax with change #4993.

Christoph Lipka commented on Thursday, 02 December 2010, 09:35 GMT

Finalized(?) syntax with change #5206.


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