Hello Verge3D team and community,
I’ve been trying to integrate a high-performance 3D Gaussian Splatting viewer with LOD support (using the popular @sparkjsdev/spark renderer and large .spz scenes ~150 million splats) into a Verge3D project.
Unfortunately it is currently impossible to get it running properly in Verge3D, even though the exact same code works perfectly at 60+ FPS with zero warnings when using original three.js r170+.
After in-depth debugging, the root causes are:
=== Verge3D Full Compatibility Diagnostic Report (English) ===
Date : 2025-11-20
Verge3D version : v3d.module49.js (based on three.js ~r122)
Browser : Windows NT 10.0; Win64; x64
GPU : ANGLE (NVIDIA, NVIDIA GeForce RTX 3080 (0x0000220A) Direct3D11 vs_5_0 ps_5_0, D3D11) (Google Inc. (NVIDIA))
— Critical WebGL2 Extensions (Required by Spark / 3DGS / three-gs etc.) —
OES_texture_half_float : ✗ DISABLED by Verge3D
OES_texture_half_float_linear : ✗ DISABLED by Verge3D
EXT_color_buffer_half_float : ✓ Supported
WEBGL_color_buffer_float : ✗ Disabled (fallback)
OES_standard_derivatives : ✗ DISABLED by Verge3D
OES_texture_float : ✗ Disabled
OES_texture_float_linear : ✓ Supported
— Required three.js Modern APIs (Missing in old Verge3D fork) —
WebGLRenderer.prototype.readRenderTargetPixelsAsync : ✗ MISSING → needs polyfill
InstancedBufferAttribute.prototype.addUpdateRange : ✗ MISSING → needs polyfill
— Summary —
• All 5 core half-float extensions are deliberately disabled by Verge3D.
• Two essential three.js APIs (introduced after r130) are completely missing.
• Modern Gaussian Splatting renderers (Spark, three-gs, etc.) cannot run without heavy polyfills or will fail entirely.
• The same hardware + browser + original three.js r170+ runs these renderers at full 60+ FPS with zero warnings.
Conclusion for Verge3D team:
Please either:
1. Remove the internal extension blacklist, or
2. Update the embedded three.js to at least r160+ and enable standard WebGL2 features.
This prevents the entire 2024–2025 generation of high-performance point-cloud / Gaussian Splatting viewers from working in Verge3D applications.
Report generated automatically for official feedback.
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