Real Weapon Sights Shaders

Real Weapon Sights Shaders - Collimator & Scope optics for Unity / VRChat (PC & Quest)

Two lightweight shaders that replicate real weapon optics with true parallax, lens effects and emissive reticles. Works in desktop and VR.

VIDEO: https://www.youtube.com/watch?v=PgFpqejJ4cQ

Included Shaders
• Collimator / Holographic sight shader
• Scope (magnified optic) shader

Feature Highlights
• Optical parallax, vignetting and lens curvature on a flat mesh
• Emissive reticles with color, brightness and zeroing control
• Collimator shader supports sprite-sheet reticles and live switching
• Scope shader uses a dedicated camera + render texture for realism
• Full desktop and VR support, tested in VRChat (avatars & worlds)
• Low GPU cost – keep active cameras to a minimum for best performance

Using the Collimator Shader
1. Place a Unity Quad inside the sight model and assign the material
2. Custom meshes must be flat and UV-mapped like a Quad
3. Shader variants:
　- Collimator (transparent)
　- Collimator Additive (faster, but may glow on bright backgrounds)
4. Set sprite-sheet columns / rows to switch reticles via the Type property
5. Additive version offers Blackout to darken the view

Using the Scope Shader
1. Apply the material to a Quad or flat custom mesh
2. Scope Sight Masked version auto-masks corners for a circular lens
3. Each scope needs its own material, camera and render texture
4. Multiple active cameras will lower FPS – keep one active or relocate a shared camera to the nearest scope

Lens & Reticle Settings
• Lens color, normal scale, smoothness, metallic
• Reticle texture, emissive texture, color, emissive power
• Reticle depth, scale, gradient, zeroing
• Mask depth, scale, gradient, vignette, etc.

Installation
1. Import the .unitypackage
2. Assign the materials to your sight meshes
3. Use the sample scene as a guide for camera and RT setup

Package Contents
• Collimator & Collimator Additive shaders
• Scope & Scope Masked shaders
• Sample materials, textures and demo scene

Credits
Demo models by 3DGunsmith & Pokudinev
EOTech: https://sketchfab.com/3d-models/eotech-xps2-1-holographic-scope-85bafd78f4ca4b8c85d8cc63637cd37d
PSO-1: https://sketchfab.com/3d-models/pso-1-6826bb7852934647a4ab9e3e9706854b

Short License Terms
Prohibited:
- Redistribution with paid assets
- Repackaging or re-bundling

Commercial use:
• Custom avatars – license required per end client
• Custom worlds – license required per customer