Module primitives 

GPU primitive batching

Defines GPU-ready data structures that match the shader uniform layouts. All structures use #[repr(C)] and implement bytemuck::Pod for safe GPU buffer copies.

Structs

BlurUniforms

Uniforms for Kawase blur shader

ColorMatrixUniforms

Uniforms for color matrix shader

CompositeUniforms

Uniform buffer for compositor

DropShadowUniforms

Uniforms for drop shadow shader

GlassUniforms

Uniform buffer for glass shader

GlowUniforms

Uniforms for the glow effect shader

GpuGlassPrimitive

A GPU glass primitive for vibrancy/blur effects (matches shader GlassPrimitive struct)

GpuGlyph

A GPU text glyph instance (matches shader GlyphInstance struct)

GpuPrimitive

A GPU primitive ready for rendering (matches shader Primitive struct)

GpuRectDeprecated

Legacy rectangle primitive (deprecated - use GpuPrimitive instead)

LayerCommandEntry

A recorded layer command with its primitive index

LayerCompositeUniforms

Uniform buffer for layer composition

MaskImageUniforms

Uniforms for the mask image effect shader

ParticleViewport3D

GPU particle viewport for rendering particle systems

PathBatch

A batch of tessellated path geometry

PathUniforms

Uniform buffer for path rendering Layout matches shader struct exactly:

PrimitiveBatch

Batch of GPU primitives for efficient rendering

Sdf3DUniform

Uniform data for 3D SDF raymarching

ShapeDesc

Per-shape descriptor for 3D group composition (64 bytes, 4 vec4s)

Uniforms

Uniform buffer for viewport information

Viewport3D

A 3D viewport to be rendered via raymarching

Enums

ClipType

Clip types for primitives

FillType

Fill types (must match shader constants)

GlassType

Glass material types (must match shader constants)

LayerCommand

Commands for layer operations during rendering

PrimitiveType

Primitive types (must match shader constants)

Constants

MAX_GROUP_SHAPES

Max shapes per 3D group (practical limit for uniform/storage buffer)