Search the Forums BEFORE making a new post.

[1.12.2] Rendering item in front of everything else

Posted December 6, 20195 yr

Hi.

In my mod, I am rendering custom first-person arms when certain items are held. I managed to do this and it works and looks quite well. However, there is one major issue - the arms and the held item can clip through blocks, mobs, etc.. So I looked at how Minecraft renders its arms, and figured out, that it "disables depth" ( using GlStateManager.disableDepth() ) so the arms are rendered on top of everything else + it also enables culling ( GlStateManager.enableCull() ). I call these before rendering the arms (and also their "opposite functions" after rendering the arms), and it works - the arms are rendered as the vanilla ones. However, it doesn't work with complex items.

It seems that this disables the "depth check" even between vertices that are part of the item, so the faces that are hidden and face the camera are rendered on top.

My code: https://pastebin.com/qR8kJJDF

EDIT: The problem almost surely is not with my models, as I tested it with vanilla items, and the same glitch occurred, though since Minecraft items are flat it is not this much visible.

Edited December 6, 20195 yr by Nuparu00
Better picture

Quote

2 weeks later...

December 15, 20195 yr

On 12/6/2019 at 8:52 AM, Nuparu00 said:

the arms and the held item can clip through blocks, mobs, etc

Could you show an example of this? I'm not sure what you mean.

On 12/6/2019 at 8:52 AM, Nuparu00 said:

that it "disables depth"

That seems odd. For example, when I disable depth in one of my rendering sections, the arms and rendering turn out like this. (It's an opaque sphere.)
2019-12-14_17_44_59.png.c1bb188f4a7f2db64e62869dbb480f33.png

I think you may have been looking in the wrong location there.

In fact, I can't find any reference to GlStateManager#disableDepth() within ItemRenderer#renderItemInFirstPerson(), ItemRenderer#renderArmFirstPerson(), RenderPlayer#renderRightArm(), or ModelRenderer#doRender().

Moreover, cull is actually disabled in RenderLivingBase#doRender().

To solve your problem, then, I think you need to disable culling, and enable depth.

That might just get you back to your original issue, but I'd like to make sure I understand what that is before I try and help there.

Edited December 15, 20195 yr by SerpentDagger

Fancy 3D Graphing Calculator mod, with many different coordinate systems.

Lightweight 3D/2D position/vector transformations library, also with support for different coordinate systems.

Quote

2 weeks later...

December 29, 20195 yr

Author

On 12/15/2019 at 3:06 AM, SerpentDagger said:

Could you show an example of this? I'm not sure what you mean.

Here is a video that I recorded.

Quote

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.

Reply to this topic...

https://forums.minecraftforge.net/topic/78550-1122-rendering-item-in-front-of-everything-else/

Followers

Go to topic listing

IPS spam blocked by CleanTalk.

Announcements

[SOLVED] Guys, please help me get through this horrible NoClassDefFound exception.

Well, needing help for this didn't last nearly as long as I expected, lol. I figured out the solution, and it's a real face palmer. Basically, the function Type.getInternalName(Class<?> clazz) does NOT work for classes that are obfuscated. This means that it won't work for basically every minecraft class. So running it with the argument EntityTrackerEntry.class won't work, but running it with CustomHandler.class will work! Annoying, but a still bit interesting. So I just replaced my call for Type.getInternalName(EntityTrackerEntry.class) with just "os", as that is the name of the actual class for EntityTrackerEntry at runtime. Hope this solution helps somebody. In the meantime, I'm going to mark this thread as solved.

By Jackson Perr · Monday at 09:57 PM1 day
[1.20.1] Custom Effect Help

Can you send the code pertaining to your custom mod effect? I don't see anything wrong with how you "assemble" the food properties, btw.

By Jackson Perr · Monday at 07:56 PM1 day
(IntelliJ) Gradle doesn't import enums from net.minecraft.core properly

crazy

By Jonathing · Monday at 07:50 PM1 day
(IntelliJ) Gradle doesn't import enums from net.minecraft.core properly

For anyone who is running into this issue in the future: The fix for me was updating Intellij. I was using the 2022 version, which apparently had some issues with Java 21 (particularly around enums, which Direction is one).

By CravenCraft · Monday at 07:40 PM1 day
How do you add a mob to spawn around a existing vanilla structure?

Hey dawg!

I think I might be able to help you out with your issue here. I say might because I don't know about 1.16.x or any later version, but I know how to do this kind of thing for 1.12.2 forge. Basically, in the pre-init or init (I don't really remember which one) you just gotta'

Okay, ykw, I just downloaded the 1.14.4 1.20.1 minecraft mdk. I think I actually can help you here. So, the 1.12.2 method actually doesn't work with 1.20.1 minecraft or later. Probably not too far before either. I see two options here for ya':

First, it's important to note that the game stores its spawn data for structures in, well, the Structures class. Here, the game initializes an instance of each Structure class and registers them with the BootstrapContext using its bootstrap function. Each instance of a Structure class is registered with a StructureSettings class as an argument. One of the arguments, the one that you're probably going to be particularly interested in here, would be the spawnOverrides argument. For this argument, the game uses a Map between MOB_CATEGORIES and StructureSpawnOverride. StructureSpawnOverride is essentially the juice of it here. It contains almost everything you would need to control how your custom mob spawns in Pillager Outposts. Now, if you want to change how the Structure class for the pillager outposts is registered with the BootstrapContext in the bootstrap function, you're going to want to change where the function's caller gets the function and replace it with your own custom version of this function. How might you do this? This is where it gets a little tricky. The bootstrap function for the structures class is referenced in VanillaRegistries.BUILDER. However, unfortunately, this field is private and final, so you can't directly change it with reflections, but you can still access it with reflections. Now the VanillaRegistries.BUILDER field is of the type RegistrySetBuilder, which uses a private final field "entires", which is set as a List<RegistrySetBuilder.RegistryStub<?>> type. So here, you could use reflections to access this list field and remove the entry for the structures bootstrap. Then you might be able to create your own structures class and add change the bootstrap function to reflect the changes you wish. Then finally, simply re-add the Structure entry that you made to the list, and you should be completely done! Keep in mind, I haven't actually tested this, so I'm not sure if it would actually work, and even if it did work it's really unorthodox, so I would recommend trying this next idea.

When the game is deciding whether or not to spawn an entity, if the entity is registered with the SpawnPlacements class, is uses the function you specify in the entity class to determine whether or not the entity can spawn in a certain spot. For example, the guardian cannot spawn on a block that is exposed to light from underwater because of this function. So what you could do is make a checkSelfSpawnRules function for your mob and register it with the SpawnPlacements function. Then, you could have your checkSelfSpawnRules function take into account if the block it's trying to spawn on is near a Pillager Outpost. Finally, you can get the coordinates to the chunk of your block and iterate through the ServerLevels in your MinecraftServer class and get their chunk sources and test if the chunk source has the chunk of your block position. If it does, you can then get the StructureManager from the ServerLevel. In there should be some very helpful functions for you to use. Although this is a bit more orthodox, it might be a bit laggy.

It's really up to you which of these options you choose. If you need some additional clarification then please let me know, I would be happy to help you out! Also let me know if any of these options hit your goals for what your looking for here or not. If not then just let me know; I could probably find another method you could try.

By Jackson Perr · Monday at 06:27 PM1 day

Sign In

[1.12.2] Rendering item in front of everything else

Featured Replies

Join the conversation

Posts

[SOLVED] Guys, please help me get through this horrible NoClassDefFound exception.

[1.20.1] Custom Effect Help

(IntelliJ) Gradle doesn't import enums from net.minecraft.core properly

(IntelliJ) Gradle doesn't import enums from net.minecraft.core properly

How do you add a mob to spawn around a existing vanilla structure?

Who's Online (See full list)

Important Information

Account

Navigation

Search

Configure browser push notifications

Chrome (Android)

Chrome (Desktop)

Safari (iOS 16.4+)

Safari (macOS)

Edge (Android)

Edge (Desktop)

Firefox (Android)

Firefox (Desktop)