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Custom/extended splat encoding ranges, Premultiplied alpha for hyper-saturated colors (#134)

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* Externalized SparkRenderer.maxPixelRadius and .minAlpha settings. Added to documentation. Added to examples/editor under Debug folder, moved sort32 there.

* Added SplatEncoding concept, applied individually to SparkRenderer (rgbMin/Max, lnScaleMinMax), SplatMesh (additionally sh1Min/Max, sh2, sh3). Updated examples/editor to control settings via gui. Updated all related code to pipe along settings where needed.
Added SparkRenderer.premultipliedAlpha to control blend mode and enable hyper-saturated color contributions by default.

* Fix SplatLoader not passing along encoding. Complete renaming to splat encoding.
This commit is contained in:
Andreas Sundquist
2025-07-23 10:04:24 -07:00
committed by GitHub
parent f4b4522c56
commit f60c2b0cf9
19 changed files with 568 additions and 149 deletions
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src/defines.ts
-1
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@@ -6,7 +6,6 @@
export const LN_SCALE_MIN = -12.0;
export const LN_SCALE_MAX = 9.0;
export const LN_RESCALE = (LN_SCALE_MAX - LN_SCALE_MIN) / 254.0; // 1..=255
export const SCALE_MIN = Math.exp(LN_SCALE_MIN);
export const SCALE_MAX = Math.exp(LN_SCALE_MAX);