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How to show second hand in first person?

Trahatron3000

By Trahatron3000
in Modder Support

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Trahatron3000 Tree Puncher

Trahatron3000

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  • Author
Posted 
 @SubscribeEvent
    public static void armPose(RenderHandEvent event) {
        ItemStack stack = event.getItemStack();
        Hand hand = event.getHand();
        Item item = stack.getItem();
        MatrixStack matrix = event.getMatrixStack();





        if(item instanceof Lighter && hand == Hand.OFF_HAND)
        {

            
            matrix.rotate(Vector3f.XP.rotationDegrees(60F));
            matrix.rotate(Vector3f.YP.rotationDegrees(-45F ));
            matrix.rotate(Vector3f.ZP.rotationDegrees(15F ));
            matrix.rotate(Vector3f.XP.rotationDegrees(-40F));

            matrix.translate(0.2, 0.1, -0.3f);

            matrix.rotate(Vector3f.ZN.rotation(50));
            matrix.rotate(Vector3f.YN.rotation(51));
            matrix.rotate(Vector3f.YP.rotation(51));

            matrix.scale(1.4f,1.4f,1.4f);
        }
    }

 

Trahatron3000 Tree Puncher

Trahatron3000

Posted
  • Author
Posted

I did it like this: 

@SubscribeEvent
    public static void armPose(RenderHandEvent event) {
        ItemStack stack = event.getItemStack();
        IRenderTypeBuffer buffer = event.getBuffers();
        int light = event.getLight();
        Hand hand = event.getHand();
        Item item = stack.getItem();
        ClientPlayerEntity player = (ClientPlayerEntity) stack.getAttachedEntity();
        MatrixStack matrix = event.getMatrixStack();
        Minecraft mc = Minecraft.getInstance();
        EntityRendererManager renderManager = mc.getRenderManager();
        PlayerRenderer renderer = (PlayerRenderer) renderManager.getRenderer(player); // here is the error


        if(item instanceof Lighter && hand == Hand.OFF_HAND) 
        {
            renderer.renderLeftArm(matrix,buffer,light,player);
            HandSide handside = HandSide.LEFT;
            matrix.rotate(Vector3f.XP.rotationDegrees(60F));
            matrix.rotate(Vector3f.YP.rotationDegrees(-45F ));
            matrix.rotate(Vector3f.ZP.rotationDegrees(15F ));
            matrix.rotate(Vector3f.XP.rotationDegrees(-40F));

            matrix.translate(0.2, 0.1, -0.3f);

            matrix.rotate(Vector3f.ZN.rotation(50));
            matrix.rotate(Vector3f.YN.rotation(51));
            matrix.rotate(Vector3f.YP.rotation(51));

            matrix.scale(1.4f,1.4f,1.4f);
        }
    }

But it crashes...

Trahatron3000 Tree Puncher

Trahatron3000

Posted
  • Author
Posted 
java.lang.NullPointerException: Unexpected error
	at net.minecraft.client.renderer.entity.EntityRendererManager.getRenderer(EntityRendererManager.java:210) ~[forge-1.16.5-36.2.20_mapped_snapshot_20210309-1
	at net.ebukotyat.realmagic.client.events.ClientEvents.armPose(ClientEvents.java:55) ~[main/:?] {re:classloading}
	at net.minecraftforge.eventbus.ASMEventHandler_4_ClientEvents_armPose_RenderHandEvent.invoke(.dynamic) ~[?:?] {}
	at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:85) ~[eventbus-4.0.0.jar:?] {}
	at net.minecraftforge.eventbus.EventBus.post(EventBus.java:302) ~[eventbus-4.0.0.jar:?] {}
	at net.minecraftforge.eventbus.EventBus.post(EventBus.java:283) ~[eventbus-4.0.0.jar:?] {}
	at net.minecraftforge.client.ForgeHooksClient.renderSpecificFirstPersonHand(ForgeHooksClient.java:218) ~[forge-1.16.5-36.2.20_mapped_snapshot_20210309-1.16
	at net.minecraft.client.renderer.FirstPersonRenderer.renderItemInFirstPerson(FirstPersonRenderer.java:246) ~[forge-1.16.5-36.2.20_mapped_snapshot_20210309-
	at net.minecraft.client.renderer.GameRenderer.renderHand(GameRenderer.java:381) ~[forge-1.16.5-36.2.20_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:cl
	at net.minecraft.client.renderer.GameRenderer.renderWorld(GameRenderer.java:626) ~[forge-1.16.5-36.2.20_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:c
	at net.minecraft.client.renderer.GameRenderer.updateCameraAndRender(GameRenderer.java:437) ~[forge-1.16.5-36.2.20_mapped_snapshot_20210309-1.16.5-recomp.ja
	at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1003) ~[forge-1.16.5-36.2.20_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl
	at net.minecraft.client.Minecraft.run(Minecraft.java:612) ~[forge-1.16.5-36.2.20_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:accesstr
	at net.minecraft.client.main.Main.main(Main.java:184) ~[forge-1.16.5-36.2.20_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistc
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_312] {}
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_312] {}
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_312] {}
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_312] {}
	at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:52) ~[forge-1.16.5-36.2.20_mapped_s
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:82) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.0.9.jar:?] {}
	at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:108) [forge-1.16.5-36.2.20_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {}
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
-- Head --
Thread: Render thread
Stacktrace:
	at net.minecraft.client.renderer.entity.EntityRendererManager.getRenderer(EntityRendererManager.java:210) ~[forge-1.16.5-36.2.20_mapped_snapshot_20210309-1
	at net.ebukotyat.realmagic.client.events.ClientEvents.armPose(ClientEvents.java:55) ~[main/:?] {re:classloading}
	at net.minecraftforge.eventbus.ASMEventHandler_4_ClientEvents_armPose_RenderHandEvent.invoke(.dynamic) ~[?:?] {}
	at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:85) ~[eventbus-4.0.0.jar:?] {}
	at net.minecraftforge.eventbus.EventBus.post(EventBus.java:302) ~[eventbus-4.0.0.jar:?] {}
	at net.minecraftforge.eventbus.EventBus.post(EventBus.java:283) ~[eventbus-4.0.0.jar:?] {}
	at net.minecraftforge.client.ForgeHooksClient.renderSpecificFirstPersonHand(ForgeHooksClient.java:218) ~[forge:?] {re:classloading}
	at net.minecraft.client.renderer.FirstPersonRenderer.renderItemInFirstPerson(FirstPersonRenderer.java:246) ~[forge:?] {re:classloading,xf:fml:forge:bows.1,
	at net.minecraft.client.renderer.GameRenderer.renderHand(GameRenderer.java:381) ~[forge:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.renderer.GameRenderer.renderWorld(GameRenderer.java:626) ~[forge:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A
-- Affected level --
Details:
	All players: 1 total; [ClientPlayerEntity['Dev'/30, l='ClientLevel', x=25.64, y=4.00, z=288.84]]
	Chunk stats: Client Chunk Cache: 169, 1
	Level dimension: minecraft:overworld
	Level spawn location: World: (0,4,32), Chunk: (at 0,0,0 in 0,2; contains blocks 0,0,32 to 15,255,47), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,
	Level time: 45417 game time, 9952 day time
	Server brand: forge
	Server type: Integrated singleplayer server
Stacktrace:
	at net.minecraft.client.world.ClientWorld.fillCrashReport(ClientWorld.java:465) ~[forge-1.16.5-36.2.20_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:cl
	at net.minecraft.client.Minecraft.addGraphicsAndWorldToCrashReport(Minecraft.java:2093) ~[forge-1.16.5-36.2.20_mapped_snapshot_20210309-1.16.5-recomp.jar:?
	at net.minecraft.client.Minecraft.run(Minecraft.java:633) ~[forge-1.16.5-36.2.20_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:accesstr
	at net.minecraft.client.main.Main.main(Main.java:184) ~[forge-1.16.5-36.2.20_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistc
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_312] {}
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_312] {}
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_312] {}
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_312] {}
	at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:52) ~[forge-1.16.5-36.2.20_mapped_s
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:82) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.0.9.jar:?] {}
	at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:108) [forge-1.16.5-36.2.20_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {}

 

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