`spec_v2` migration tracking issue

[ecoskey]

spec_v2 migration tracking issue

This issue tracks the migration of bevy's rendering crates from the SpecializedXPipeline traits to those added the PR linked above.

[Migration Guide]

High-level items

• Figure out patterns
  • Bikeshed/review first migration PR, bloom
  • Address structural comments in followup
• Migrate misc. specializer impls
• Migrate materials
• Deprecate (remove?) SpecializedXPipeline

Per-crate checklist

bevy_core_pipeline

• Auto Exposure
• Blit
• Bloom
• Depth of Field
• Depth Downsampling
• Motion Blur
• Post Processing
• Skybox
• Tonemapping

bevy_anti_aliasing

• Contrast Adaptive Sharpening
• FXAA
• SMAA
• TAA

bevy_gizmos

• Line Gizmos

bevy_pbr

• Atmospherics
• Deferred Lighting
• Prepass
• GPU Mesh Preprocessing
• Screen Space Ambient Occlusion
• Materials

bevy_sprite

• Material 2D
• Sprite

bevy_ui_render

• Box Shadow
• Gradient
• Node
• UI Material
• Texture Slice

Examples

• custom_gltf_Vertex_attribute
• mesh2d_manual
• custom_shader_instancing
• shader_defs
• shader_material_wesl
• custom_vertex_attribute
• specialized_mesh_pipeline
• custom_render_phase
• lines
• manual_material

[JMS55]

Note that TAA reset is better off being a push constant or uniform rather than a separate pipeline. I just never got around to fixing that.