Color calculations are assumed to be done in sRGB space [1]. There is
nothing specific to adding vertex colors to 3D meshes that would impact
this.
Short answer: no, there is nothing explicitly needed for gamma correction
-- Kevin
[1] https://en.wikipedia.org/wiki/SRGB
On 9/4/2024 12:34 PM, Andy Goryachev wrote:
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> 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> on behalf of
Knee Snap <kneeste...@gmail.com>
*Date: *Tuesday, September 3, 2024 at 23:53
*To: *openjfx-dev@openjdk.org <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!
