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Alpha Piscium

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Overview

Resource Description

Alpha Piscium

Author: Luna5ama Category: Shaders

Alpha Piscium is a high-fidelity, photorealistic shaderpack designed for Minecraft. By leveraging cutting-edge rendering techniques, it delivers a breathtaking visual environment, featuring sophisticated global illumination, volumetric cloud systems, and atmospheric scattering effects.

Key Features

  • Real-time Global Illumination
    • Features Screen-Space Global Illumination based on Reservoir-based SpatioTemporal Importance Resampling (ReSTIR).
    • Integrated with ReBLUR for high-quality denoising.
  • Atmospheric Scattering
    • Delivers realistic, high-speed, and real-time atmospheric visuals.
    • Utilizes the Unreal Engine Sky Atmosphere Rendering Technique and Epipolar Sampling.
  • Volumetric Clouds
    • Powered by the Nubis system.
  • High-quality Adaptive Shadows
    • Implements Rectilinear Texture Warping (RTWSM) for sharp, adaptive shadow rendering.

Installation

  1. Download the Alpha Piscium shaderpack.
  2. Install the Iris shader loader.
  3. Open your Minecraft launcher and select the Iris profile matching your game version.
  4. Launch the game and navigate to OptionsVideo SettingsShader Packs.
  5. Click Open Shader Pack Folder.
  6. Place the downloaded ZIP file directly into the directory (.minecraft/shaderpacks).
  7. Select the newly added pack from the list within the game. (If successfully loaded by Iris, the text will turn yellow.)
  8. Click Done or Apply to initialize the shader.

FAQ

  • Darkness at night: Please use PBR resource packs. For a vanilla-consistent aesthetic, SPBR is recommended, or try Patrix for higher detail.
  • Shader loading failure: Please ensure you are using Iris version 1.7 or higher.
  • Turning back causes darkness: This is a limitation inherent to screen-space rendering techniques; currently, no perfect solution exists.
  • Intel GPU compatibility: Due to the use of advanced graphics tech and poor OpenGL driver maintenance by Intel, this shaderpack does not support Intel GPUs.
  • AMD GPU: Verify that your GPU driver version is newer than 22.7.1. Please update if you are running an older version.
  • General loading errors: Press Ctrl+D in the Iris shader selection screen to reload. If the error persists, check the log files in .minecraft/patched_shaders as specified in the error notification and report the issue to the developer.

Roadmap

  • 1.9 Specular GI: Addition of specular global illumination.
  • 2.0 World Space Tracing: Introduction of voxelization and voxel tracing.
  • 2.1 DRT Update: Release of Skibidi DRT and potential support for HDR mods.
  • 2.2 Volumetric Shadowing: Adding cloud shadowing and screen-space shadows to volumetric effects.
  • 2.3 Local Fog: Introduction of ground-level fog effects.
  • 2.4 Cloud Shadow: Implementing cloud shadows on terrain and integrating clouds into reflection/GI.
  • 2.5 Cloud Update Part 1: Improving cloud lighting, adding altocumulus clouds, and refactoring cirrus modeling.
  • 2.6 Cloud Update Part 2: Rewriting cumulus models and adding stratocumulus and nimbostratus.
  • 2.7 Upscaling: Potential addition of FSR 3.1 (excluding frame generation).
  • 2.8 Parallax Mapping: Exploring steep/smooth parallax mapping and parallax shadow support.

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