This revision fixes a huge number of ray tracing bugs, brings numerous quality improvements and adds support for the Heavy Core in Minecraft Preview.



• Added support for the "Heavy Core" in Minecraft Preview.

• Adjusted Trial Spawner and Vault block's emissivity.
- Lower parts on vault block and upper parts on trial spawner now emit more light for a better and natural look.
- Off states now glow more strongly (While emissive pixels appear brighter, only vault block emits an aura of light to match the base game)
- On states emissive parts are now much stronger.

• Updated French translations for better accuracy. (Thanks MazeWave)

• Adjusted all brick-type blocks normal maps (e.g stonebricks, deepslate tiles and bricks, mud bricks, etc...) to look better under light from steep angles.
- Fixed netherbricks' incorrect normal maps.
• Updated sandstone and carved sandstones normal maps to have a consistent logic with similar blocks.
• Fixed jarringly dark pixels on Cobblestone and Mossy Cobblestone normal maps that would appear during sunset and sunrise.
• Improved all wooden logs and stripped variants' top normal maps with better details.
• Updated chiseled stonebrick normal map to match style of other stonebrick types.
• Updated prismarine bricks, top and left sides are no longer considered part of the mortar.

• Revamped dirt (dirt textures on grass, mycelium, podzol sides, farmland, all dirt variants, even the dirt parts on hanging roots or missing tile, etc...) all materials have been updated with a cleaned-up dirty appearance!
- Pebbles now appear consistent and overall a bit more rough.
- Updated all normal maps with seamless tiling, this is especially important as light can come from very steep angles with new sun direction.

• Updated grass path to have a similar style to grass block, now much more detailed with improved normal maps.
• Updated hanging roots and root parts on rooted dirt with new detailed materials

• Revamped mycelium, new materials, new smoother, seamless normal maps and better heightmaps.

• Updated stone diorite, granite and andesite
- Improved diorite details, increased overall roughness of all 3.
- New smoother normal maps with better tiling, revamped heightmaps.




• Other Changes & Fixes:
- Nerfed redstone block emissivity so it may no longer be viable as a light source in large chunks (Still passively emits a small of light to accommodate for consistency between all redstone components that need to passively glow)
- Fixed an incorrect pixels' angle on grass side normal map.
- Revamped spore blossom with new heightmaps and normal maps, base texture is now consistent with azalea leaves, significantly decreased emissivity.


▣ New Experimental Updates & Changes in v1.21.20:
(Features below require switching to experimental option within Vanilla RTX or Vanilla RTX Normals through resource pack's settings)

• Fixed invisible Mooshroom mushrooms with ray tracing.
Notes: Missing mushrooms have been remodeled on top of mooshroom for ray tracing as a workaround, as such they may not perfectly line up with original mushrooms without ray tracing, this results in duplicate mushrooms appearing without ray tracing.
It is also worth noting in vanilla Minecraft, mushrooms are floating over cow's body! and this workaround fixes that too.

• Changed Breeze's material that caused glass-like appearance of its wind body, animations of Breeze wind are now functional. (Known issue: only first layer of wind is displayed)
• Updated the fix for Warden's black ears/chest from 1.21.10, now fully fixed without the glass-like ears (MCPE-157438) (Known issue: warden's bioluminescent layer is not functional)
• Fixed glass-like wind charge projectiles with ray tracing.

• Fixed Wither Boss armor texture and texture animation with ray tracing. (MCPE-141530)

• Fixed in-world item textures appearing red & yellow for mob spawn eggs introduced after 1.16.
Currently applies to: Sniffer, Breeze, Armadillo, Bogged, Allay, Axolotl, Camel, Ender Dragon, Frog, Glow Squid, Goat, Hoglin, Iron Golem, Piglin and Pigling Brute, Polar Bear, Sniffer, Snow Golem, Strider, Tadpole, Trader Llama, Warden, Wither Boss and Zoglin spawn eggs.

• Added particle modifiers for all particles, all in-game particles have been adjusted where needed, most particles now have varying degrees of decreased opacity.
For instance, particles like lava will remain fully opaque and bright, while other particles like rain or block destruction have been modified to better blend-in with the world. Particles are not ray ray traced, and this can lead to drastically improved visuals while using ray tracing.

• Fixed chiseled bookshelf front appearing glossy. (MCPE-166159)
Notes: book textures are not yet dynamic, right now on or off state is displayed only depending on the direction the block is facing, this might be improved in a future update. (MCPE-166159)
• Fixed kelp bottom not using a PBR texture, now uses kelp top texture (Carried over from Minecraft RTX Fix Pack v2)

• Corrected colors of doors (MCPE-121412)
Notes: Some doors' colors are not fully correctable.

• Added decorated pot fixes for all 3 new pottery sherds in Minecraft Preview (MCPE-167161)

• Fixed Experimentals option causing redstone ores' reactivity to break, reactivity functionality of redstone ores is now exclusive to the Experimental option.
Notes: This was previously part of default Vanilla RTX, however it has shown to cause missing textures in some servers and with some addons and their resource packs.
Redstone ores' textures will now permanently remain in a non-lit state, which passively emits a small amount of light like all other redstone components. It is now required to switch to experimental option if you wish redstone ores to light up when interacted with or walked on.

• Updated spyglass overlay bug workaround, removed the fix for the texture being too zoomed-in from 1.21.10, instead now modifies only the problematic parts of the texture that caused two darker squares to appear on screen.
Spyglass zoom now functions more similarly to java mods like Optifine zoom without any overlay texture with ray tracing, this workaround (unlike the previous) no longer breaks spyglass without ray tracing. (MCPE-125925)