Original Task 3 had Bindless* methods calling the legacy Texture2D
GetOrUpload* and converting the GL name to a bindless handle —
producing a sampler2D texture sampled via sampler2DArray (GLSL type
mismatch).
Revised: Task 3 introduces three parallel cache dictionaries
(_bindlessBySurfaceId / _bindlessByOverridden / _bindlessByPalette)
storing both the GL texture name and the resident handle. Bindless*
methods call DecodeFromDats + UploadRgba8AsLayer1Array directly with
their own caching; legacy three-cache structure mirrored exactly.
Task 4 (Dispose) updated to: (1) MakeNonResident on every bindless
handle FIRST, (2) DeleteTexture on every Texture2DArray name, (3)
DeleteTexture on every legacy Texture2D handle. Order matters per
ARB_bindless_texture spec.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Implementer caught that the original Task 2 (replace UploadRgba8 target
with Texture2DArray) would break four legacy consumers whose shaders
sample via sampler2D: WbDrawDispatcher (pre-rewrite path),
StaticMeshRenderer, InstancedMeshRenderer (legacy escape hatch),
ParticleRenderer.
Revised: Task 2 ADDS a parallel UploadRgba8AsLayer1Array. Existing
UploadRgba8 (Texture2D) stays for legacy callers. Task 3's Bindless*
methods will call the new array path with their own cache dictionaries.
Same surface may be uploaded twice during transition; bounded cost.
N.6 cleanup deletes the legacy path.
Task 3 will be amended at dispatch time to reflect parallel caches.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
The TextureCacheBindlessTests.cs file is created in Task 3 (where it
gets meaningful test cases), not Task 1. Removed it from Task 1's
Files list and added an explicit note. Caught during Task 1 code review.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
