Ugly block lighting and light leaking

[Anas13303]

Hello Luracasmus! I was curious about this shader so I decided to test it on my system. Unfortunately, the moment I booted it up, I was met with this... the blocks barely have any ambient occlusion, and I didn't turn off vanilla smooth lighting. Please add the vanilla block lighting that allows certain sides of blocks to be darker than others (you could see how another shader called 'Just Vanilla Lighting' does exactly this) and it'll be a lot better!

Moreover I noticed that the lower the pre-set is (here, I changed it to 'Stone'), the easier it is for light to leak in interiors:

Since both bugs are related to lighting, I thought it'd be appropriate to report them together. My laptop specs are Linux Mint 22.1, Intel Iris Xe Graphics, 8GB of RAM, and a 4-core i5-1135G7. I tested this on Fabric 1.21.4 with the following mods:

• AppleSkin [3.0.6+mc1.21.3]
• BadOptimizations [2.3.0]
• Better Mount HUD [1.2.5]
• Clean F3 [0.4.9]
• Cloth Config v17 [17.0.144]
• Concurrent Chunk Management Engine [0.3.2+alpha.0.44+1.21.4]
• Cubes Without Borders [3.0.0+mc1.21.3]
• Distant Horizons [2.3.5-b-dev]
• EntityCulling [1.8.2]
• FPS Reducer [1.21.3-2.11]
• Fabric API [0.119.4+1.21.4]
• FerriteCore [7.1.1]
• Gamma Utils [2.2.5]
• ImmediatelyFast [1.8.1+1.21.4]
• Iris [1.8.8+mc1.21.4]
• Lithium [0.15.3+mc1.21.4]
• MidnightLib [1.7.3]
• Mod Menu [13.0.3]
• Model Gap Fix [1.21.3-1.10]
• ModernFix [5.20.3+mc1.21.4]
• More Culling [1.2.10]
• NoTextureRotations [1.0.4]
• Noisium [2.5.0+mc1.21.4]
• Reese's Sodium Options [1.8.3+mc1.21.4]
• Shulker Box Tooltip [5.2.6+1.21.4]
• Sodium [0.6.13+mc1.21.4]
• Sodium Extra [0.6.1+mc1.21.4]
• Sodium Shadowy Path Blocks [4.0.0]
• Sound Physics Remastered [1.21.4-1.4.15]
• Status Effect Bars [1.0.7]
• Totem Tweaks [1.0.1]
• kennytv's epic force close loading screen mod for Fabric [2.2.3]
• uku's Armor HUD [0.7.0+mc1.21.4]
• ukulib [1.6.0+1.21.4]