[1.12.2] Render OBJ on item depending on NBT

[tpzker]

Hello. I'm working on a mod called Crystalline (source code here), and I can't quite figure out how to use an OBJ model to render an item depending on its NBT. If anyone can help me as soon as possible, please do. I'm anticipating a release date of the mod fairly soon.

 

I would like to implement this rendering into the ItemCrystal class. I have already added OBJLoader.INSTANCE.addDomain(MODID); to my ClientProxy locally, but it may not be in the Git version.

ItemCrystal.java

 

Edited June 25, 2018 by tpzker

[Oscarita25]

never worked with custom item models but i found this in the Item class.. :
 

    @SideOnly(Side.CLIENT)
    public void setTileEntityItemStackRenderer(@Nullable net.minecraft.client.renderer.tileentity.TileEntityItemStackRenderer teisr)
    {
    	this.teisr = teisr;
    }  

its client sided .. named renderer.. maybe you can change the model in there with a simple switch checking for the NBT?
but i am not sure tho..

[tpzker]

3 hours ago, Oscarita25 said:

never worked with custom item models but i found this in the Item class.. :
 

    @SideOnly(Side.CLIENT)
    public void setTileEntityItemStackRenderer(@Nullable net.minecraft.client.renderer.tileentity.TileEntityItemStackRenderer teisr)
    {
    	this.teisr = teisr;
    }  

its client sided .. named renderer.. maybe you can change the model in there with a simple switch checking for the NBT?
but i am not sure tho..

I researched a bit, and it doesn't look like that can be used for what I need.

Edited June 26, 2018 by tpzker

[tpzker]

I have created an ItemMeshDefinition, but it doesn't seem to allow me to render an OBJ with it. (The updated code should now be committed to GitHub)

JSON file (crystalline:item/crystal_knowledge.json)

Spoiler

{
            "parent": "crystalline:item/crystal_knowledge.obj",
			"display": {
				"firstperson": {
					"translation": [1.20, 0.25, 0],
					"rotation": [ 0, 0, 0 ],
					"scale": [1, 1, 1]
				},
				"thirdperson": {
					"translation": [0.25, 0.25, 0.35],
					"rotation": [ 0, 0, 0 ],
					"scale": [0.5, 0.5, 0.5]
				},
				"gui": {
					"translation": [0, 0.5, 0],
					"rotation": [ -45, 0, 0 ],
					"scale": [1, 1, 1]
				}
			}
}

 

Results:

Spoiler

 

Also, I get a weird error in my log:

Spoiler

[21:19:26] [main/ERROR] [FML]: Exception loading model for variant crystalline:crystal_knowledge#inventory for item "crystalline:crystal", normal location exception: 
java.lang.IllegalStateException: vanilla model 'net.minecraft.client.renderer.block.model.ModelBlock@37539486' can't have non-vanilla parent
	at net.minecraftforge.client.model.ModelLoader$VanillaModelWrapper.getTextures(ModelLoader.java:402) ~[ModelLoader$VanillaModelWrapper.class:?]
	at net.minecraftforge.client.model.ModelLoaderRegistry.getModel(ModelLoaderRegistry.java:163) ~[ModelLoaderRegistry.class:?]
	at net.minecraftforge.client.model.ModelLoader.loadItemModels(ModelLoader.java:304) ~[ModelLoader.class:?]
	at net.minecraft.client.renderer.block.model.ModelBakery.loadVariantItemModels(ModelBakery.java:175) ~[ModelBakery.class:?]
	at net.minecraftforge.client.model.ModelLoader.setupModelRegistry(ModelLoader.java:153) ~[ModelLoader.class:?]
	at net.minecraft.client.renderer.block.model.ModelManager.onResourceManagerReload(ModelManager.java:28) [ModelManager.class:?]
	at net.minecraft.client.resources.SimpleReloadableResourceManager.notifyReloadListeners(SimpleReloadableResourceManager.java:131) [SimpleReloadableResourceManager.class:?]
	at net.minecraft.client.resources.SimpleReloadableResourceManager.reloadResources(SimpleReloadableResourceManager.java:112) [SimpleReloadableResourceManager.class:?]
	at net.minecraft.client.Minecraft.refreshResources(Minecraft.java:867) [Minecraft.class:?]
	at net.minecraft.client.Minecraft.processKeyF3(Minecraft.java:2234) [Minecraft.class:?]
	at net.minecraft.client.Minecraft.runTickKeyboard(Minecraft.java:2089) [Minecraft.class:?]
	at net.minecraft.client.Minecraft.runTick(Minecraft.java:1933) [Minecraft.class:?]
	at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1186) [Minecraft.class:?]
	at net.minecraft.client.Minecraft.run(Minecraft.java:441) [Minecraft.class:?]
	at net.minecraft.client.main.Main.main(Main.java:118) [Main.class:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_162]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_162]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_162]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_162]
	at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) [launchwrapper-1.12.jar:?]
	at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_162]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_162]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_162]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_162]
	at net.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:97) [start/:?]
	at GradleStart.main(GradleStart.java:25) [start/:?]
[21:19:26] [main/ERROR] [FML]: Exception loading model for variant crystalline:crystal_knowledge#inventory for item "crystalline:crystal", blockstate location exception: 
net.minecraftforge.client.model.ModelLoaderRegistry$LoaderException: Exception loading model crystalline:crystal_knowledge#inventory with loader VariantLoader.INSTANCE, skipping
	at net.minecraftforge.client.model.ModelLoaderRegistry.getModel(ModelLoaderRegistry.java:153) ~[ModelLoaderRegistry.class:?]
	at net.minecraftforge.client.model.ModelLoader.loadItemModels(ModelLoader.java:312) ~[ModelLoader.class:?]
	at net.minecraft.client.renderer.block.model.ModelBakery.loadVariantItemModels(ModelBakery.java:175) ~[ModelBakery.class:?]
	at net.minecraftforge.client.model.ModelLoader.setupModelRegistry(ModelLoader.java:153) ~[ModelLoader.class:?]
	at net.minecraft.client.renderer.block.model.ModelManager.onResourceManagerReload(ModelManager.java:28) [ModelManager.class:?]
	at net.minecraft.client.resources.SimpleReloadableResourceManager.notifyReloadListeners(SimpleReloadableResourceManager.java:131) [SimpleReloadableResourceManager.class:?]
	at net.minecraft.client.resources.SimpleReloadableResourceManager.reloadResources(SimpleReloadableResourceManager.java:112) [SimpleReloadableResourceManager.class:?]
	at net.minecraft.client.Minecraft.refreshResources(Minecraft.java:867) [Minecraft.class:?]
	at net.minecraft.client.Minecraft.processKeyF3(Minecraft.java:2234) [Minecraft.class:?]
	at net.minecraft.client.Minecraft.runTickKeyboard(Minecraft.java:2089) [Minecraft.class:?]
	at net.minecraft.client.Minecraft.runTick(Minecraft.java:1933) [Minecraft.class:?]
	at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1186) [Minecraft.class:?]
	at net.minecraft.client.Minecraft.run(Minecraft.java:441) [Minecraft.class:?]
	at net.minecraft.client.main.Main.main(Main.java:118) [Main.class:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_162]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_162]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_162]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_162]
	at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) [launchwrapper-1.12.jar:?]
	at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_162]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_162]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_162]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_162]
	at net.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:97) [start/:?]
	at GradleStart.main(GradleStart.java:25) [start/:?]
Caused by: net.minecraft.client.renderer.block.model.ModelBlockDefinition$MissingVariantException
	at net.minecraft.client.renderer.block.model.ModelBlockDefinition.getVariant(ModelBlockDefinition.java:83) ~[ModelBlockDefinition.class:?]
	at net.minecraftforge.client.model.ModelLoader$VariantLoader.loadModel(ModelLoader.java:1182) ~[ModelLoader$VariantLoader.class:?]
	at net.minecraftforge.client.model.ModelLoaderRegistry.getModel(ModelLoaderRegistry.java:149) ~[ModelLoaderRegistry.class:?]
	... 25 more

 

 

 

Edited June 26, 2018 by tpzker

[V0idWa1k3r]

To specify a model based on NBT data look at vanilla's ItemBow and it's model. While it doesn't use NBT data you can easily adapt the code there to use NBT.

By the error in your log it looks like vanilla json can't have a non-vanilla obj(provided by forge) as it's parent.