v0.2.6: Preview Rendering Recovery, GPU Pipeline Fixes & 1.21.5 Startup Fix

This release fixes the preview rendering regression where block previews, outlines, and guide visuals could disappear without ImmediatelyFast installed. It also stabilizes the new GPU preview path, fixes fluid preview offsets, improves plant/grass surface handling, and fixes a 1.21.5 black-screen startup issue.

Changes

• World Render Callback Fix: Moved Axion world visuals onto the stable END_MAIN render phase and fixed fallback routing so Fabric event and mixin paths do not suppress each other. This restores outlines, guide arrows, and block previews without relying on ImmediatelyFast.
• Large Preview Rendering Fix: Fixed chunked previews reporting success while drawing nothing. Medium and large previews now render reliably again, with the working CPU/Immediate fallback preserved.
• GPU Preview Pipeline Progress: Added a gated custom preview GPU pipeline for 1.21.11 using Axion's preview_shell shaders and DynamicTransforms. Fixed visibility, alignment, large-coordinate precision jitter, and camera movement issues in the custom GPU path.
• 1.21.5 Startup Fix: Excluded modern GPU preview shader resources from the 1.21.5 jar. This prevents the black-screen startup hang caused by 1.21.11 shader imports being packaged into the 1.21.5 build.
• Symmetry Keybind Fix: Ctrl + R and Ctrl + F symmetry bindings no longer trigger when Shift is held, allowing Ctrl + Shift + R/F to be used by other bindings.

Supported Versions

1.21.5 through 1.21.11

Support and Feedback

• Issues: https://github.com/castledking/Axion/issues
• Wiki: https://github.com/castledking/Axion/wiki
• Discord: https://discord.com/invite/pCKdCX6nYr
• Website: https://castled.codes