[1.19.3] Displaying hands in first-person

[Luckydel]

Hi, I have a couple of questions, maybe it's not difficult for someone to answer.
As far as I understand, I need RenderHandEvent

Further, as far as I understand, I need:
ItemInHandRenderer#renderHandsWithItems
But how is it supposed to work? Should I change the PoseStack somehow?

Or, I need PlayerRenderer#renderHand
Or do I need to create my own PlayerRenderer or ItemInHandRenderer


 

[Hipposgrumm]

What are you trying to do?

[Luckydel]

9 minutes ago, Hipposgrumm said:

What are you trying to do?

 

I want my hands to be displayed with the item.

Edited February 9, 2023 by Luckydel

[Luckydel]

Hands are not displayed ... Maybe I'm doing something wrong.
Event:

Spoiler

	@SubscribeEvent
    public static void DefaultItemAnimation(RenderHandEvent event){
      
        float i = 1.0f;
        Minecraft minecraft = Minecraft.getInstance();
        EntityRenderDispatcher renderer2 = minecraft.getEntityRenderDispatcher();
        AbstractClientPlayer abstractclientplayer = minecraft.player;
        assert abstractclientplayer != null;

        if(checkItem(event.getItemStack().getItem())) {
            Object itemstack = Minecraft.getInstance().player.getItemInHand(event.getHand()).getItem();
            if (itemstack instanceof GunShot gunShot) {
                CUSTOMRENDER2 customrender2 = new CUSTOMRENDER2(minecraft, renderer2, minecraft.getItemRenderer());
                customrender2.renderHandsWithItems(i, event.getPoseStack(),
                        minecraft.renderBuffers().bufferSource(), minecraft.player, 				            minecraft.getEntityRenderDispatcher().getPackedLightCoords(minecraft.player, i));
            }
        }
    }

 

Render:
 

Spoiler

@OnlyIn(Dist.CLIENT)
public class CUSTOMRENDER2 {
    private final Minecraft minecraft;
    private ItemStack mainHandItem = ItemStack.EMPTY;
    private ItemStack offHandItem = ItemStack.EMPTY;
    private float mainHandHeight;
    private float oMainHandHeight;
    private float offHandHeight;
    private float oOffHandHeight;
    private final EntityRenderDispatcher entityRenderDispatcher;
    private final ItemRenderer itemRenderer;

    public CUSTOMRENDER2(Minecraft p_234241_, EntityRenderDispatcher p_234242_, ItemRenderer p_234243_) {
        this.minecraft = p_234241_;
        this.entityRenderDispatcher = p_234242_;
        this.itemRenderer = p_234243_;
    }

    public void renderHandsWithItems(float p_109315_, PoseStack p_109316_, MultiBufferSource.BufferSource p_109317_, LocalPlayer p_109318_, int p_109319_) {
        float f = p_109318_.getAttackAnim(p_109315_);
        InteractionHand interactionhand = MoreObjects.firstNonNull(p_109318_.swingingArm, InteractionHand.MAIN_HAND);
        float f1 = Mth.lerp(p_109315_, p_109318_.xRotO, p_109318_.getXRot());
        CUSTOMRENDER2.HandRenderSelection iteminhandrenderer$handrenderselection = evaluateWhichHandsToRender(p_109318_);
        float f2 = Mth.lerp(p_109315_, p_109318_.xBobO, p_109318_.xBob);
        float f3 = Mth.lerp(p_109315_, p_109318_.yBobO, p_109318_.yBob);
        p_109316_.mulPose(Axis.XP.rotationDegrees((p_109318_.getViewXRot(p_109315_) - f2) * 0.1F));
        p_109316_.mulPose(Axis.YP.rotationDegrees((p_109318_.getViewYRot(p_109315_) - f3) * 0.1F));
        if (iteminhandrenderer$handrenderselection.renderMainHand) {
            float f4 = interactionhand == InteractionHand.MAIN_HAND ? f : 0.0F;
            float f5 = 1.0F - Mth.lerp(p_109315_, this.oMainHandHeight, this.mainHandHeight);
            if(!net.minecraftforge.client.ForgeHooksClient.renderSpecificFirstPersonHand(InteractionHand.MAIN_HAND, p_109316_, p_109317_, p_109319_, p_109315_, f1, f4, f5, this.mainHandItem))
                this.renderArmWithItem(p_109318_, p_109315_, f1, InteractionHand.MAIN_HAND, f4, this.mainHandItem, f5, p_109316_, p_109317_, p_109319_);
        }

        if (iteminhandrenderer$handrenderselection.renderOffHand) {
            float f6 = interactionhand == InteractionHand.OFF_HAND ? f : 0.0F;
            float f7 = 1.0F - Mth.lerp(p_109315_, this.oOffHandHeight, this.offHandHeight);
            if(!net.minecraftforge.client.ForgeHooksClient.renderSpecificFirstPersonHand(InteractionHand.OFF_HAND, p_109316_, p_109317_, p_109319_, p_109315_, f1, f6, f7, this.offHandItem))
                this.renderArmWithItem(p_109318_, p_109315_, f1, InteractionHand.OFF_HAND, f6, this.offHandItem, f7, p_109316_, p_109317_, p_109319_);
        }

        p_109317_.endBatch();
    }

    @VisibleForTesting
    static CUSTOMRENDER2.HandRenderSelection evaluateWhichHandsToRender(LocalPlayer p_172915_) {
        ItemStack itemstack = p_172915_.getMainHandItem();
        ItemStack itemstack1 = p_172915_.getOffhandItem();
        return CUSTOMRENDER2.HandRenderSelection.RENDER_BOTH_HANDS;
    }

    private void renderArmWithItem(AbstractClientPlayer p_109372_, float p_109373_, float p_109374_, InteractionHand p_109375_,
                                   float p_109376_, ItemStack p_109377_, float p_109378_, PoseStack p_109379_, MultiBufferSource p_109380_, int p_109381_) {
        if (!p_109372_.isScoping()) {
            boolean flag = p_109375_ == InteractionHand.MAIN_HAND;
            HumanoidArm humanoidarm = flag ? p_109372_.getMainArm() : p_109372_.getMainArm().getOpposite();
            p_109379_.pushPose();


            this.renderPlayerArm(p_109379_, p_109380_, p_109381_, p_109378_, p_109376_, humanoidarm);

            p_109379_.popPose();
        }
    }

    private void renderPlayerArm(PoseStack p_109347_, MultiBufferSource p_109348_, int p_109349_, float p_109350_, float p_109351_, HumanoidArm p_109352_) {
        boolean flag = p_109352_ != HumanoidArm.LEFT;
        float f = flag ? 1.0F : -1.0F;
        float f1 = Mth.sqrt(p_109351_);
        float f2 = -0.3F * Mth.sin(f1 * (float)Math.PI);
        float f3 = 0.4F * Mth.sin(f1 * ((float)Math.PI * 2F));
        float f4 = -0.4F * Mth.sin(p_109351_ * (float)Math.PI);
        p_109347_.translate(f * (f2 + 0.64000005F), f3 + -0.6F + p_109350_ * -0.6F, f4 + -0.71999997F);
        p_109347_.mulPose(Axis.YP.rotationDegrees(f * 45.0F));
        float f5 = Mth.sin(p_109351_ * p_109351_ * (float)Math.PI);
        float f6 = Mth.sin(f1 * (float)Math.PI);
        p_109347_.mulPose(Axis.YP.rotationDegrees(f * f6 * 70.0F));
        p_109347_.mulPose(Axis.ZP.rotationDegrees(f * f5 * -20.0F));
        AbstractClientPlayer abstractclientplayer = this.minecraft.player;
        RenderSystem.setShaderTexture(0, abstractclientplayer.getSkinTextureLocation());
        p_109347_.translate(f * -1.0F, 3.6F, 3.5F);
        p_109347_.mulPose(Axis.ZP.rotationDegrees(f * 120.0F));
        p_109347_.mulPose(Axis.XP.rotationDegrees(200.0F));
        p_109347_.mulPose(Axis.YP.rotationDegrees(f * -135.0F));
        p_109347_.translate(f * 5.6F, 0.0F, 0.0F);
        PlayerRenderer playerrenderer = (PlayerRenderer)this.entityRenderDispatcher.<AbstractClientPlayer>getRenderer(abstractclientplayer);
        if (flag) {
            playerrenderer.renderRightHand(p_109347_, p_109348_, p_109349_, abstractclientplayer);
        } else {
            playerrenderer.renderLeftHand(p_109347_, p_109348_, p_109349_, abstractclientplayer);
        }

    }
    @OnlyIn(Dist.CLIENT)
    @VisibleForTesting
    static enum HandRenderSelection {
        RENDER_BOTH_HANDS(true, true),
        RENDER_MAIN_HAND_ONLY(true, false),
        RENDER_OFF_HAND_ONLY(false, true);

        final boolean renderMainHand;
        final boolean renderOffHand;

        private HandRenderSelection(boolean p_172928_, boolean p_172929_) {
            this.renderMainHand = p_172928_;
            this.renderOffHand = p_172929_;
        }

        public static CUSTOMRENDER2.HandRenderSelection onlyForHand(InteractionHand p_172932_) {
            return p_172932_ == InteractionHand.MAIN_HAND ? RENDER_MAIN_HAND_ONLY : RENDER_OFF_HAND_ONLY;
        }
    }
}

 

I check if my item is in my hands:

if(checkItem(event.getItemStack().getItem())) {
            Object itemstack = Minecraft.getInstance().player.getItemInHand(event.getHand()).getItem();//возможно оптимизация выводом на шаг верх
            if (itemstack instanceof GunShot gunShot) {

Without it I get crash
 

Spoiler

---- Minecraft Crash Report ----
// This doesn't make any sense!

Time: 2023-02-09 23:39:10
Description: Unexpected error

java.lang.LinkageError: loader constraint violation: loader 'MC-BOOTSTRAP' @5ad851c9 wants to load interface org.apache.logging.log4j.util.MessageSupplier. (org.apache.logging.log4j.util.MessageSupplier is in module [email protected] of loader 'MC-BOOTSTRAP' @5ad851c9, parent loader 'bootstrap')
    at net.minecraftforge.eventbus.EventBus.handleException(EventBus.java:329) ~[eventbus-6.0.3.jar:?] {}
    at net.minecraftforge.eventbus.EventBus.post(EventBus.java:320) ~[eventbus-6.0.3.jar:?] {}
    at net.minecraftforge.eventbus.EventBus.post(EventBus.java:296) ~[eventbus-6.0.3.jar:?] {}
    at net.minecraftforge.client.ForgeHooksClient.renderSpecificFirstPersonHand(ForgeHooksClient.java:296) ~[forge-1.19.3-44.0.30_mapped_official_1.19.3-recomp.jar:?] {re:classloading}
    at net.minecraft.client.renderer.ItemInHandRenderer.renderHandsWithItems(ItemInHandRenderer.java:289) ~[forge-1.19.3-44.0.30_mapped_official_1.19.3-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.renderer.GameRenderer.renderItemInHand(GameRenderer.java:818) ~[forge-1.19.3-44.0.30_mapped_official_1.19.3-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.client.renderer.GameRenderer.renderLevel(GameRenderer.java:1092) ~[forge-1.19.3-44.0.30_mapped_official_1.19.3-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.client.renderer.GameRenderer.render(GameRenderer.java:875) ~[forge-1.19.3-44.0.30_mapped_official_1.19.3-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.client.Minecraft.runTick(Minecraft.java:1135) ~[forge-1.19.3-44.0.30_mapped_official_1.19.3-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.client.Minecraft.run(Minecraft.java:713) ~[forge-1.19.3-44.0.30_mapped_official_1.19.3-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.client.main.Main.run(Main.java:212) ~[forge-1.19.3-44.0.30_mapped_official_1.19.3-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.main.Main.main(Main.java:51) ~[forge-1.19.3-44.0.30_mapped_official_1.19.3-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] {}
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?] {}
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] {}
    at java.lang.reflect.Method.invoke(Method.java:568) ~[?:?] {}
    at net.minecraftforge.fml.loading.targets.ForgeClientUserdevLaunchHandler.lambda$launchService$0(ForgeClientUserdevLaunchHandler.java:25) ~[fmlloader-1.19.3-44.0.30.jar:?] {}
    at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) ~[modlauncher-10.0.8.jar:?] {}
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) ~[modlauncher-10.0.8.jar:?] {}
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) ~[modlauncher-10.0.8.jar:?] {}
    at cpw.mods.modlauncher.Launcher.run(Launcher.java:106) ~[modlauncher-10.0.8.jar:?] {}
    at cpw.mods.modlauncher.Launcher.main(Launcher.java:77) ~[modlauncher-10.0.8.jar:?] {}
    at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) ~[modlauncher-10.0.8.jar:?] {}
    at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) ~[modlauncher-10.0.8.jar:?] {}
    at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:141) ~[bootstraplauncher-1.1.2.jar:?] {}

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Render thread
Stacktrace:
    at net.minecraftforge.eventbus.EventBus.handleException(EventBus.java:329) ~[eventbus-6.0.3.jar%23108!/:?] {}
    at net.minecraftforge.eventbus.EventBus.post(EventBus.java:320) ~[eventbus-6.0.3.jar%23108!/:?] {}
    at net.minecraftforge.eventbus.EventBus.post(EventBus.java:296) ~[eventbus-6.0.3.jar%23108!/:?] {}
    at net.minecraftforge.client.ForgeHooksClient.renderSpecificFirstPersonHand(ForgeHooksClient.java:296) ~[forge-1.19.3-44.0.30_mapped_official_1.19.3-recomp.jar%23185%23192!/:?] {re:classloading}
    at net.minecraft.client.renderer.ItemInHandRenderer.renderHandsWithItems(ItemInHandRenderer.java:289) ~[forge-1.19.3-44.0.30_mapped_official_1.19.3-recomp.jar%23186!/:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.renderer.GameRenderer.renderItemInHand(GameRenderer.java:818) ~[forge-1.19.3-44.0.30_mapped_official_1.19.3-recomp.jar%23186!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.client.renderer.GameRenderer.renderLevel(GameRenderer.java:1092) ~[forge-1.19.3-44.0.30_mapped_official_1.19.3-recomp.jar%23186!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
-- Affected level --
Details:
    All players: 1 total; [LocalPlayer['Dev'/181, l='ClientLevel', x=-270.05, y=-60.00, z=1.35]]
    Chunk stats: 361, 58
    Level dimension: minecraft:overworld
    Level spawn location: World: (0,-60,0), Section: (at 0,4,0 in 0,-4,0; chunk contains blocks 0,-64,0 to 15,319,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,-64,0 to 511,319,511)
    Level time: 156246 game time, 24761 day time
    Server brand: forge
    Server type: Integrated singleplayer server
Stacktrace:
    at net.minecraft.client.multiplayer.ClientLevel.fillReportDetails(ClientLevel.java:452) ~[forge-1.19.3-44.0.30_mapped_official_1.19.3-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.Minecraft.fillReport(Minecraft.java:2319) ~[forge-1.19.3-44.0.30_mapped_official_1.19.3-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.client.Minecraft.run(Minecraft.java:735) ~[forge-1.19.3-44.0.30_mapped_official_1.19.3-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
    at net.minecraft.client.main.Main.run(Main.java:212) ~[forge-1.19.3-44.0.30_mapped_official_1.19.3-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.main.Main.main(Main.java:51) ~[forge-1.19.3-44.0.30_mapped_official_1.19.3-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] {}
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?] {}
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] {}
    at java.lang.reflect.Method.invoke(Method.java:568) ~[?:?] {}
    at net.minecraftforge.fml.loading.targets.ForgeClientUserdevLaunchHandler.lambda$launchService$0(ForgeClientUserdevLaunchHandler.java:25) ~[fmlloader-1.19.3-44.0.30.jar:?] {}
    at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) ~[modlauncher-10.0.8.jar:?] {}
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) ~[modlauncher-10.0.8.jar:?] {}
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) ~[modlauncher-10.0.8.jar:?] {}
    at cpw.mods.modlauncher.Launcher.run(Launcher.java:106) ~[modlauncher-10.0.8.jar:?] {}
    at cpw.mods.modlauncher.Launcher.main(Launcher.java:77) ~[modlauncher-10.0.8.jar:?] {}
    at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) ~[modlauncher-10.0.8.jar:?] {}
    at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) ~[modlauncher-10.0.8.jar:?] {}
    at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:141) ~[bootstraplauncher-1.1.2.jar:?] {}

-- Last reload --
Details:
    Reload number: 1
    Reload reason: initial
    Finished: Yes
    Packs: vanilla, mod_resources
 

It enters rendering, but sometimes it crashes if I set a breakpoint

Edited February 9, 2023 by Luckydel
.