Renderer-construction helpers extracted from SceneManager.
Five concerns live here:
configureRendererBackend — point the backend-dependent rendering
paths (texture layout, ordering applies, RenderObject eviction,
element-texture row uploads) at a renderer; shared with layer mode.
selectBackend (re-exported from backend-selection.ts) — apply the
URL-param / env-var / platform-policy precedence ladder.
createWebGLRenderer — construct a THREE.WebGLRenderer
from the configured WebGL2 context, build the renderer-
capabilities snapshot, configure HDR.
requestWebGPUDevice — consume the early entry's high-limit core
adapter / device request (or start one, see early-device-request.ts,
which also applies the platform policy's adapter-vendor check), start
the lazy TSL chunk fetch, and decide the WebGL fallback.
createWebGPURenderer — consume a bootstrap request once (or start
a fresh one), construct and init() a WebGPURenderer, and build the
capabilities snapshot.
Each create*Renderer function returns
{ renderer, capabilities }. Host (SceneManager) is responsible
for the post-construction wiring (materialManager.setCaps,
resizer initial-size, setClearColor) so the helpers stay focused
on graphics-API negotiation.
Renderer-construction helpers extracted from SceneManager.
Five concerns live here:
configureRendererBackend— point the backend-dependent rendering paths (texture layout, ordering applies, RenderObject eviction, element-texture row uploads) at a renderer; shared with layer mode.selectBackend(re-exported frombackend-selection.ts) — apply the URL-param / env-var / platform-policy precedence ladder.createWebGLRenderer— construct aTHREE.WebGLRendererfrom the configured WebGL2 context, build the renderer- capabilities snapshot, configure HDR.requestWebGPUDevice— consume the early entry's high-limit core adapter / device request (or start one, seeearly-device-request.ts, which also applies the platform policy's adapter-vendor check), start the lazy TSL chunk fetch, and decide the WebGL fallback.createWebGPURenderer— consume a bootstrap request once (or start a fresh one), construct and init() aWebGPURenderer, and build the capabilities snapshot.Each
create*Rendererfunction returns{ renderer, capabilities }. Host (SceneManager) is responsible for the post-construction wiring (materialManager.setCaps, resizer initial-size, setClearColor) so the helpers stay focused on graphics-API negotiation.