Registers the PBR plugin bridge: its detect hook assigns a stable signature
identity outside the material's feature bits during the build, so no mesh
walk is needed here.
Registers the Standard plugin bridge and walks scene.meshes, pre-baking a
per-signature identity into every Standard plugin material's _pi.
Only a presence flag enters per-renderable features. Standard plugin uniforms are delivered
through a self-managed uniform buffer built here and bound via the
pre-existing StdExt._bind loop.
Enable material-plugin support for
scene.detecthook assigns a stable signature identity outside the material's feature bits during the build, so no mesh walk is needed here.scene.meshes, pre-baking a per-signature identity into every Standard plugin material's_pi. Only a presence flag enters per-renderable features. Standard plugin uniforms are delivered through a self-managed uniform buffer built here and bound via the pre-existingStdExt._bindloop.