Decision Guide: Rendering Flow

Decision Guide: Rendering Flow

When to Use SpriteBatch

Use for high-volume sprite rendering with shared texture/material state.

Benefits:

• reduced draw calls
• deterministic sort by z/texture/blend

When to Use PrimitiveBatch

Use for debug overlays and low-cost procedural shapes.

Not ideal for fully materialized production geometry pipelines.

When to Use RenderGraph

Use when rendering has multiple dependent passes.

Examples:

• scene -> bloom -> composite
• gbuffer -> lighting -> post

Pass Design Rules

1. one producer per render target id
2. explicit pass inputs/outputs
3. compile after graph changes

Camera Utilities

• worldToScreen for UI markers over world objects
• screenToWorld for picking/cursor world coordinates

Validate zoom to avoid runtime projection errors.