Recently I'm planning to create a machinima with Blockbuster mod, which is only available on 1.12.2, so in order to make some effects like falling leaves, I could only use BetterFoliage mod in this version. But after installing BetterFoliage, the leaf waving effects in any shader which have their own block.properties files couldn’t display normally… I have done what is mentioned in the tips of BetterFoliage’s Mod Settings, but it still doesn’t work, though I have tried to remove all other mods except Optifine.

And also, is there any way to toggle off the transparent animation which takes place after the leaves fallen down on the ground?

You should modify the mod settings.

Here are the relevant lines from BSL's block.properties:

block.10100=minecraft:grass minecraft:fern minecraft:seagrass minecraft:crimson_roots minecraft:warped_roots minecraft:nether_sprouts
block.10105=minecraft:oak_leaves minecraft:spruce_leaves minecraft:birch_leaves minecraft:jungle_leaves minecraft:acacia_leaves minecraft:dark_oak_leaves

Leaves ID = 10105
Grass ID = 10100

You should modify the mod settings.
Leaves ID = 10105
Grass ID = 10100

Thanks very much! And I think I still need the hotfix. But if there's no time finishing the code changes, it’s actually fine. After all, the problem I have is just the fade-out of the leaves will cause a white background instead of a transparent animation due to the shader.

No prob.
Leaf particle fade-out was actually completely fine for me with the BSL shaderpack, but there could be all kinds of differences from one GPU to the next, I don't really understand shaders that much.
I can do the fix tomorrow.

Leaf particle fade-out is not currently toggleable. It didn't seem like a big issue, but if that's a dealbreaker for you, I can put out a hotfix, it's a fairly small code change.

Leaf & grass wind effects are working fine for me. I'll give you an example you can check out, and see for yourself where the numbers are coming from:
Shader: Sildur's Vibrant Shaders, High (1.283)
Leaves ID: 10018
Grass ID: 10031

Or, if the shaderpack you use is publicly available, you can also give me a link and I'll tell you the numbers.

Leaf & grass wind effects are working fine for me. I'll give you an example you can check out, and see for yourself where the numbers are coming from:
Shader: Sildur's Vibrant Shaders, High (1.283)
Leaves ID: 10018
Grass ID: 10031

I found that the reason I mentioned "Any" above is because every time I switch shaders belong to the BSL series... If I switch between Sildurs or SEUS shaders, there is no problem with the leaves. Now should I modify the shader file or modify the settings in the mod?

Ninja update

The config option is called fadeOut