Product
About
The VTXS project was born to challenge the modern graphics trend of smearing everything with TAA and upscaling. The philosophy behind VTXS is that everything stays perfectly sharp, regardless of camera speed.
Screen Space Demo
This shader introduces a lighting system developed exclusively for VTXS.
Each emissive pixel visible on screen illuminates the scene and casts shadows.
The noise level is low enough for real time gameplay without requiring denoising. However, a denoiser is still present as an optional feature.
While being a demo this shader is intended to be used for gameplay, so all features necessary for a complete and playable experience are planned.
Implemented Features
- Screen Space Path Tracing
- Physically Based Atmosphere
- Full roughness range specular reflections
- Volumetric clouds
- Godrays
- Subsurface Scattering
- Variable penumbra shadows
- Bloom
- Eye adaptation
- Screen Space Raytraced Refraction
- GBAA Anti-aliasing
Big thanks to jbritain for making vloumetric clouds for VTXS!
It is highly recommended to use a PBR resource pack, as the integrated PBR system is very limited.
The shader now works on Intel GPUs, however, there may still be issues. Please report any issues in my Discord server.
Preview
Product images
Environment
Requirements & compatibility
Compatibility & requirements
Iris1.18 – 1.21.1126.126.1.126.1.2
Local host
Required
Hosting on services
Unsupported
Terms
License
Terms for using, modifying and redistributing this product.
LicenseRef-All-Rights-ReservedModrinth
Release
Latest release
v1.0.4
02.05.2026 · Modrinth
- Fixed clouds not recieving light at night
- Reduced shadow noise
Gallery
Project images
Screenshots and images from the original Modrinth page.
1.0.0 Release
History
Project versions
Published versions and original Modrinth files.
v1.0.4LatestBeta
02.05.2026 · 27 066 downloads
Iris1.191.19.11.19.21.19.31.19.41.201.20.11.20.2
- Fixed clouds not recieving light at night
- Reduced shadow noise
v1.0.3Beta
11.03.2026 · 13 274 downloads
Iris1.191.19.11.19.21.19.31.19.41.201.20.11.20.2
- Added tonemapping options
- Added bright color desaturaton to default tonemap
- Grouped post-processing options
- Removed buggy text background
v1.0.1Beta
06.03.2026 · 3 191 downloads
Iris1.191.19.11.19.21.19.31.19.41.201.20.11.20.2
- Fixed spelling errors in settings
- Fixed hardcoded entities not glowing (spectral_arrow, end_crystal, ender_pearl, experience_orb, dragon_fireball)
- Added surface emission brightness slider
v1.0.0Beta
04.03.2026 · 703 downloads
Iris1.191.19.11.19.21.19.31.19.41.201.20.11.20.2
- Added screen space light source sampling
- Added SSR cone tracing
- Added thickness aware screen space ray tracing mode (Ray penetration in settings)
- Added volumetric clouds
- Added vanilla clouds
- Added physically based atmosphere
- Added stars
- Added moon phases
- Added godrays
- Added subsurface scattering
- Added Dynamic resolution shadows
- Added shadow quality & distance settings
- Added smooth fade to shadow render distance border
- Added cloud shadows
- Added weather
- Added rain / snow particles
- Added bloom
- Added autoexposure
- Added screen space raytraced refraction
- Added lightmap based shadowing outside of shadowmap range
- Added atmosphere in The End
- Added atmosphere in The Nether
- Added tGBAA anti aliasing option
- Increased denoiser resolution form half res to full res
- Added second GBAA option
-
Added Intel support
-
Fixed black artifacts on normal mapped surfaces
- Fixed low precision raytracing mode artifacts
- Fixed hand clipping
- Fixed selection outline interfering with ray tracing
- Fixed shadow render distance border issues
-
Fixed pixelated/jagged shadow appearance
-
Optimized ray tracing
-
Optimized GBAA
-
Improved shadow filtering
v0.15.4Alpha
13.09.2025 · 17 082 downloads
Iris1.191.19.11.19.21.19.31.19.41.201.20.11.20.2
- Added water waves
- Added glass and water reflection and refraction
- Added water absorption
- Added colored shadows
- Added armor glint emission
- Imporved ray tracing precision
- Fixed invisible armor glint on hand
- Fixed shader not loading on linux
v0.14.6Alpha
06.08.2025 · 5 252 downloads
Iris1.181.18.11.18.21.191.19.11.19.21.19.31.19.4
v0.14.5Alpha
01.08.2025 · 1 070 downloads
Iris1.191.19.11.19.21.19.31.19.41.201.20.11.20.2
- Added sky
- Added noisy shadows
- Added smooth render distance fadeout
- Added basic water and glass
- Fixed shader not loading on oculus
v0.13.8Alpha
30.07.2025 · 804 downloads
Iris1.201.20.11.20.21.20.31.20.41.20.51.20.61.21
Fixed shader not running on AMD GPUs.
v0.13.7Alpha
29.07.2025 · 421 downloads
Iris1.201.20.11.20.21.20.31.20.41.20.51.20.61.21
AMD crash fix
Fixed transparent player model
Fixed lightmap being always bright
v0.13.6bAlpha
23.07.2025 · 978 downloads
Iris1.201.20.11.20.21.20.31.20.41.20.51.20.61.21
Removed unnecessary content
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