Here is a good example -

https://www.panotools.org/dersch/gamma/gamma.html

-andy


From: Knee Snap <kneeste...@gmail.com>
Date: Wednesday, September 4, 2024 at 12:24
To: Andy Goryachev <andy.goryac...@oracle.com>
Cc: openjfx-dev@openjdk.org <openjfx-dev@openjdk.org>
Subject: [External] : Re: [Feature Proposal]: TriangleMesh - Vertex Color 
Support
I don't know what gamma refers to in the context of vertex colors, sorry.

It's not using the gamma color space if that's the question (but neither is the 
rest of JavaFX 3D).

If gamma is meant as opacity, then setting the alpha color value will control 
opacity.




On Wed, Sep 4, 2024, 7:44 AM Andy Goryachev 
<andy.goryac...@oracle.com<mailto:andy.goryac...@oracle.com>> wrote:
I am not a 3D expert; one question: how is the gamma value set for color 
interpolation?

Thanks!
-andy

From: openjfx-dev 
<openjfx-dev-r...@openjdk.org<mailto:openjfx-dev-r...@openjdk.org>> on behalf 
of Knee Snap <kneeste...@gmail.com<mailto:kneeste...@gmail.com>>
Date: Tuesday, September 3, 2024 at 23:53
To: openjfx-dev@openjdk.org<mailto:openjfx-dev@openjdk.org> 
<openjfx-dev@openjdk.org<mailto:openjfx-dev@openjdk.org>>
Subject: [Feature Proposal]: TriangleMesh - Vertex Color Support
Hello all,

This is a continuation of a previous email thread: "[Feature Proposal] Vertex 
Colors on TriangleMesh".
I'm creating a new email thread because after discussion I've put together a 
feature proposal, and it serves largely as a summary of the previous email 
thread. (Better organized as a feature proposal)

Feature Proposal: 
https://github.com/Kneesnap/misc-public/blob/main/documents/javafx/feature-proposals/vertex-colors/proposal.md<https://urldefense.com/v3/__https:/github.com/Kneesnap/misc-public/blob/main/documents/javafx/feature-proposals/vertex-colors/proposal.md__;!!ACWV5N9M2RV99hQ!NdkJ9fSxFoeXCq6jCaYi5kCy2AQKgN0bqX5TvGoacJDqtLBwB2s_9pXshOJw88YKcqfB63dnYS_5axHwJ8GO3VNm$>
I had previously discussed a draft PR, but considering how simple the proposed 
public API additions are to discuss, I don't think it's actually that helpful.

What's next?
I'm currently happy with the design and seeing as it's been discussed already, 
I could probably ask Kevin for a review. But, I'd like to give another 
opportunity for design discussion before doing so, just in-case there are any 
further considerations brought up.
So, I open up the floor again. Does anyone have any thoughts on this proposal? 
Concerns? Questions? Suggestions? Constructive criticism? I eagerly await the 
feedback.

After API discussion concludes, I plan to pass it off to Kevin for 
review/approval, and if it is approved, the subsequent CSR creation.

Thanks!


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