Introduction

Highlight Plus is a complete highlighting, selection, and visual feedback system for Unity. Add outline, glow, see-through (X-ray), overlay, target indicators, hit FX, and more to any 3D object — with zero code required for basic use and a full C# API for advanced control.

Key Features

• Outline — crisp contour lines with four quality levels (Fastest, Medium, High, Highest)
• Outer Glow — bloom-like glow with multi-pass color control
• Inner Glow — rim-lighting effect rendered inside the mesh
• See-Through (X-Ray) — reveal occluded objects behind walls and geometry
• Overlay — pulsing color wash with optional texture patterns
• Target FX — animated ground decal or rotating sprite indicator
• Hit FX — brief color punch on impact
• Selection System — click-to-select with per-state profiles via Highlight Manager
• Profiles — save and reuse effect presets across objects
• GPU Instancing — batched rendering for outline and glow passes

Requirements

Next Steps

• Quick Start — get effects running in under two minutes
• URP Setup — pipeline-specific configuration for URP projects
• Settings Reference — every inspector option explained