Procedural Texture: Non Destructive HDR Tone Mapping (Affinity Photo)

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Utilise completely non-destructive tone mapping for a powerful HDR workflow, especially for 360 imagery where seam awareness is a priority.

Credits: HDRI from Polyhaven, photography by James Ritson.

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Affinity should definitely pre-load some of the most commonly used equations as presets for the users.

mvz

For Red lerp(sqrt(R /(R+b)), R /(R+b), a)
For Green lerp(sqrt(G /(G+b)), G /(G+b), a)
For Blue lerp(sqrt(B /(B+b)), B /(B+b), a)
I put the Procedural filter in Soft Light blend mode, but can be put in other blend mode, it depends by the picture and what you want the final result to be.

manuelremusstanca

great effect and very well explained equations. I'd love more tutorials and equations on the more creative side of things (digital painting vs photography) as well as distort equations as well (mirror-like effects)

calamalabar

Very helpful. Thanks, James. Especially useful was the note on how HDR data is held, which I didn't know, plus the simple algorithm for compression.

davidstraker

I congratulate you for the new tutorials where the image of the person who is explaining does not appear, since this image distracts and covers part of the program's interface. Congratulations!

javierrivero

what a wonderful tutorial, thank you very much for this 11:18

MrsRijnvis

Hi James, excuse the question here on youtube but I know we do share a particular interest in astrophotography, the question is, can procedural texture be used as some sort of a substitute for Pixel Math? (you know what program I'm referring to).
Or are there any other alternative filter or equation generator in Affinity that would sort of work that way?
Thank you

VittorioSergi

Uhhh, this could be awesome for 3D Renders. You should be able to recreate the Tonemapping Algorithms from Vray, Redshift etc...

timkreutzkamp

Photography editing is meant to be an artistic process. This is like GCSE arithmetic. 😛🫣

chrisraine

Oh Man, what a Workflow.😂. Think about, we have 2022 …

volkerbosch

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