Adding onto this, in the post at the top of this thread from Roblox,
For example, authoring marketplace content that looks and acts as intended in a world with two sets of materials is much more challenging. Application download times would also be significantly increased, especially as we expand the material library.
Don’t let an earthworm crawling on the ground ruin your day 
Wow; I just saw your edit. 
The point was that it shouldn’t even be like that, we want the old materials, and for this to be an option.
Theres still stuff that needs to be changed.
Grass, please improve its so bad. It looks bland and boring and makes builds look a bit mushy and is so flat.
Bricks. IMO I think it looks pretty good. Though issue is from a far it doesn’t really look that good, not just that it needs more depth it looks a bit flat. Also it looks WAYY too clean. Dirty it up a tad bit. Also make some parts a darker shade. Not too dark but noticeable. Something like in the old brick texture it has darker parts to imitate how it looks in real life. Also I think the texture should be roughened up a bit. Looks a bit too smooth.
WoodPlanks. I think it looks pretty good but I think it looks a bit boring though. Also I think the screws should be more bigger and more noticeable.
Wood. I think the newer one looks better then in the older build, but it looks too smooth. It should looks more grainy I guess you could say.
Corroded metal. I dont like it. The corrosion looks like a blurry mess. I think you should make it tile more so it hides the blurriness and looks better on smaller parts. Also sorry but the corrosion kind of looks like barf. This should 100% be improved.
Sandstone. Not really much to say here but it kind of looks a bit rubbery. But on parts it looks so bad. It lacks depth and detail on parts. Here’s a comparison.
Slate. It needs to be rougher, it looks wayy too smooth and makes builds look a lot worse. Please I beg you to make it a lot more rougher this really needs to be done.
Sand. It needs to tile less. On the older builds it tiled less and looked a lot better. Also the waves should be more smoother they look a bit rough. Also shadows look a bit weird and grainy on it. Heres what I mean
Pavement. I really like it, though I think it should tile a bit more. BUT theres one huge issue. Pavement on terrain should look the same as on parts. It looks absolutely discusting on terrain. Wooden planks on terrain does look a bit worse though it doesn’t really look as bad as pavement.
Cobblestone. I really like it to be honest, it looks very nice and realistic. BUT on terrain it looks so much worse, it also tiles more for some reason. Make it look the same on terrain like it does on parts please. It makes builds look mushy.
Cracked Lava. I love it. It really does look amazing. But it tiles more on terrain and I’d like it to tile just as much as it does on terrain, it looks better like that.
Limestone. It looks great I really like it, but on parts it should be brigthened up. Currently theres not really any good colours for it. Its either Yellow bluish or Yellow greenish or just dark yellow. I want to be able to make it look similar as terrain. Even if I use the same colour as it is on terrain it doesn’t look the same.
Salt. Not much to say it looks nice. But in shadow it looks really weird
Concrete. I think it looks pretty good but one issue is that its not really that noticeable. Especially in shadows. Also the roughness should be turned up more. It looks wet.
Asphalt. Up close it looks pretty nice but if you got farther it just looks like noise.
Fabric. I think it should tile more. Thats all I have to say. Just needs to tile a bit more.
Diamond Plate. It looks good in certain scenarios. If its in a room illuminated by lights in future, it looks great. But if its outside it looks really plasticly, or if its in a room being illuminated by lights in voxel or shadowmap. Heres a before and after.
Before
It looks plasticky and not that great.
Leafy grass. I dont like leafy grass that much, It doesn’t really blend well together with regular grass. It should use the same grass texture but with leaves. No changes. Also why isn’t there a stem for the leaves? All it looks like is just a bunch of yellow ovals that have been torn
Plastic. Please make it more noticeable, it seems to be even less noticeable then before. Its barley noticeable at all.
KEEP THE OLD TEXTURES
I understand the reasons not to but cant you stream them like how you stream game content and custom textures? Sure it might not be as efficent but its better then ruining how people wanted it too look like before this update.
Also Im hoping these materials I’ve suggested get added
I often use the legacy grass material for tree leaves and dirt. I even use slate for dirt sometimes because it fits so well.
Please explain to me, if I were to need to use the correct material for the correct things, how would I replace the legacy grass material to still be leafy but also having a distinct Roblox style?
Or even better, how could I replace the legacy sand material when I used it for it’s fabric-like texture? Do I use the simply fabulous fur material, or do I use the new grass material that looks like wet hair from over 10 studs?
I have 4 words to describe how detrimental this update is to many people:
I don’t think anyone cared about the performance of the old materials, just using them for appearence. There should have been no problem in preserving it, but no. You HAD to force everything, and screw up everything people have shown here.
I also presume that Surfaces are going to be hidden and removed, as plastic seems to be getting an update, making this update completely stupid with little pros. I do not have the new texures installed, so if someone could please show me how surfaces look on the new plastic, I will be grateful.
I honestly don’t hate on updates often, not bothering about them, but this is absolute crap. It not only affects devs, but also affects players’ experiences in “experiences”
There is no god.
Or even a folder system and just have the new ones named differently, honestly that way would work
Dude, man, dude, just anything to keep the old materials to some degree.
I’ve been testing the new materials on my showcase and it just took a few minutes and some minor tweaks to make it look almost the same as the legacy materials.
Made a comparision side by side, there’s no much difference between them but i’ts a subtle and nice improvement as you keep looking at.
As for my opinion new materials looks really good and new ones have some really good potential to be used, surely they don’t look quite well if you just swap right away, it needs to be adjusted to improve their looks with the overall composition and that could be a concern, but as i’ved mentioned im excited to use those new materials on new builds and see their full potential.
What did you use to replace slate?
Yeah I have seen the cool stuff with the new materials! The only ones I really hate are grass and slate tbh 
Granite and rock, they look a bit more brighter than the legacy slate so i just made them darker
“we have decided that we are going to completely replace the old materials with the improved ones.”
Uh, please dont, or atleast keep the original materials as a seperate branch (such as like Classic_[Material]), that would be amazing!
very nice!! the materials look great
Forcing developers to use the new materials is a horrible idea. This would absolutely ruin the look of some games. Please do not force us the use the new ones, give us an option to use the old materials.
This is by far one of the worst updates you guys have released. (In means of forcing us to use these)
Props to Sorcus or any materials devs in charge of updating these. I’d hate to read through these comments. There are definitely nicer ways to get your points across…
i mean in a way,
we used sand for stuff like beds and curtains because it fit the part
the new materials dont fit the part in many of these cases which can wreck the game’s artstyle
You shouldn’t be using sand for bedding material. I think that’s part of the problem here?
I mean, I get it. No limits. Please use materials for any sort of project you have. But it feels like a hacky way to get something done.
Edit: ooooohhhh boy. To say things are heated in here would be an understatement. 600 replies in a matter of hours. What I’m getting at here is nothing can stay the same forever and I’ve definitely been through this before. I’m guilty of using things like sand for bedding material. But I surely never expect it to stand the test of time. I ran into this with Port Gloom. I ran into this with Buena Vista for lighting. I’m running into this for Jailbreak.
I always have to adapt my builds when changes like these roll out. I’ve done it for materials. I’ve done it a handful of times for lighting. Is it ever a small task? Not really. I do it anyway to keep my builds relevant.
then what are we supposed to use? fabric is too dark?
its the best fit and we dont wanna shove textures into everything
