Module plugin_api 

Plugin substrate: target descriptors, shared bind layouts, WGSL helpers, pipeline builders. See plugin_api for the published extension surface. Plugin substrate: target descriptors, shared bind layouts, WGSL helpers, and pipeline builders.

This module publishes the pieces a plugin needs to build pipelines that drop into the lib’s existing render passes. A plugin reuses:

• Target descriptors ([OpaqueTargetDesc], [OitTargetDesc], [MaskTargetDesc], [PickTargetDesc], [ShadowTargetDesc]) describe the render-target formats, blend states, and depth-stencil state each lib pass expects. Pipelines built against these are compatible with the corresponding pass.
• [SharedBindings] is the group-0 bind layout (camera, lights, shadows, clip, IBL) shared by every scene pipeline. Plugin pipeline layouts list it as group 0.
• [shared_wgsl] holds string constants with the standard bind declarations and shading helpers (viewport_pbr_shade, viewport_oit_pack, viewport_sample_csm, etc.) so plugin shaders stay in lockstep with the lib’s lighting and transparency contracts.
• Pipeline builders on crate::resources::ViewportGpuResources (build_opaque_pipeline, build_oit_pipeline, …) construct the common variants in one call. Plugins ship one shader and call a builder per variant.

All accessors live on crate::resources::ViewportGpuResources.

Re-exports

pub use cull::BatchMeta;

pub use cull::CullSubmission;

pub use cull::InstanceAabb;

pub use cull::SingleMeshDraw;

pub use item_type::ItemFrameContext;

pub use item_type::ItemTypePlugin;

pub use item_type::OutlineMaskContext;

pub use item_type::PaintContext;

pub use item_type::PickRay;

pub use item_type::PluginItemCollection;

pub use item_type::ShadowCastContext;

pub use target_desc::MaskTargetDesc;

pub use target_desc::OIT_ACCUM_BLEND;

pub use target_desc::OIT_REVEAL_BLEND;

pub use target_desc::OitTargetDesc;

pub use target_desc::OpaqueTargetDesc;

pub use target_desc::PickTargetDesc;

pub use target_desc::ShadowTargetDesc;

Modules

cull

GPU-driven culling service published to plugins.

item_type

ItemTypePlugin trait and supporting types.

shared_wgsl

WGSL helper catalog.

target_desc

Render-target descriptors published for plugin pipeline construction.

Structs

SharedBindings

Group-0 bind layout shared by every scene pipeline.