* Intermediate Buffer Visualization: Enabled live monitoring of internal
`FrameGraph` render targets directly in the `fgviewer` web UI.
* HTTP Polling Architecture: Switched from WebSocket binary pushes to native
`<img>` polling (`/api/image`)
* Robust Resource Tracking: Replaced string-based lookups with
`(ViewId, ResourceId)` composite keys to prevent cross-view collisions and
ensure accurate reads.
* Format Post-Processing: Extracted readback conversions (HDR tonemapping,
depth normalization, MSAA downsampling, single-channel expansion) into
`DebugServer`.
* UI Polish: Added a live-updating full-screen image modal and explicitly
filtered internal debug passes from the Graphviz/JSON exports to prevent
DOM thrashing.
* WIP: Currently Unsupported:
* GL backend: failed with:
OpenGL framebuffer error 0x8cd6 (GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT) in "readTexture" at line 4198
* Mipmaps & Subresources: Reading specific mip levels or array layers is
explicitly skipped.
* Shadowmaps: Variance Shadow Maps (VSM) will physically evaluate to `0.0`
and appear completely empty/black in scenes without active shadow
casters (due to inverted-Z).
* Stencil: Resolving and reading stencil buffer data is not supported by
the backend.
* WIP: Untested outside of MacOS+metal/vk
2ae4dc4c62