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Fix tracers & esp bobbing when using iris shaders #6175

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Fix tracers & esp bobbing when using iris shaders #6175

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cb8de92
Fix view bobbing affecting StorageESP while using shaders
noramibu Feb 22, 2026
ef48b4e
Add matrices without bob transform for Iris shader compatibility
sophimoo Feb 25, 2026
d99b457
cleanup
Wide-Cat Feb 26, 2026
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4 changes: 3 additions & 1 deletion src/main/java/meteordevelopment/meteorclient/events/render/Render3DEvent.java
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Original file line number Diff line number Diff line change
Expand Up @@ -13,14 +13,16 @@ public class Render3DEvent {
private static final Render3DEvent INSTANCE = new Render3DEvent();

public MatrixStack matrices;
public MatrixStack matricesNoBob;
public Renderer3D renderer;
public Renderer3D depthRenderer;
public double frameTime;
public float tickDelta;
public double offsetX, offsetY, offsetZ;

public static Render3DEvent get(MatrixStack matrices, Renderer3D renderer, Renderer3D depthRenderer, float tickDelta, double offsetX, double offsetY, double offsetZ) {
public static Render3DEvent get(MatrixStack matrices, MatrixStack matricesNoBob, Renderer3D renderer, Renderer3D depthRenderer, float tickDelta, double offsetX, double offsetY, double offsetZ) {
INSTANCE.matrices = matrices;
INSTANCE.matricesNoBob = matricesNoBob;
INSTANCE.renderer = renderer;
INSTANCE.depthRenderer = depthRenderer;
INSTANCE.frameTime = Utils.frameTime;
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39 changes: 29 additions & 10 deletions src/main/java/meteordevelopment/meteorclient/mixin/GameRendererMixin.java
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Original file line number Diff line number Diff line change
Expand Up @@ -9,8 +9,8 @@
import com.llamalad7.mixinextras.injector.ModifyReturnValue;
import com.llamalad7.mixinextras.sugar.Local;
import com.mojang.blaze3d.systems.RenderSystem;
import meteordevelopment.meteorclient.MixinPlugin;
import meteordevelopment.meteorclient.MeteorClient;
import meteordevelopment.meteorclient.MixinPlugin;
import meteordevelopment.meteorclient.events.render.GetFovEvent;
import meteordevelopment.meteorclient.events.render.Render3DEvent;
import meteordevelopment.meteorclient.events.render.RenderAfterWorldEvent;
Expand Down Expand Up @@ -80,6 +80,9 @@ public abstract class GameRendererMixin {
@Unique
private final MatrixStack matrices = new MatrixStack();

@Unique
private final MatrixStack matricesNoBob = new MatrixStack();

@Shadow
protected abstract void bobView(MatrixStack matrices, float tickDelta);

Expand Down Expand Up @@ -111,16 +114,15 @@ public abstract class GameRendererMixin {
}

@Inject(method = "renderWorld", at = @At(value = "INVOKE_STRING", target = "Lnet/minecraft/util/profiler/Profiler;swap(Ljava/lang/String;)V", args = {"ldc=hand"}))
private void onRenderWorld(RenderTickCounter tickCounter, CallbackInfo ci, @Local(ordinal = 0) Matrix4f projection, @Local(ordinal = 1) Matrix4f position, @Local(ordinal = 0) float tickDelta, @Local MatrixStack matrixStack) {
private void onRenderWorld(RenderTickCounter tickCounter, CallbackInfo ci, @Local(ordinal = 0) Matrix4f projection, @Local(ordinal = 1) Matrix4f position) {
if (!Utils.canUpdate()) return;

Profilers.get().push(MeteorClient.MOD_ID + "_render");

// Create renderer and event
// Create renderers

if (renderer == null) renderer = new Renderer3D(MeteorRenderPipelines.WORLD_COLORED_LINES, MeteorRenderPipelines.WORLD_COLORED);
if (depthRenderer == null) depthRenderer = new Renderer3D(MeteorRenderPipelines.WORLD_COLORED_LINES_DEPTH, MeteorRenderPipelines.WORLD_COLORED_DEPTH);
Render3DEvent event = Render3DEvent.get(matrixStack, renderer, depthRenderer, tickDelta, camera.getCameraPos().x, camera.getCameraPos().y, camera.getCameraPos().z);

// Update model view matrix

Expand All @@ -133,21 +135,38 @@ private void onRenderWorld(RenderTickCounter tickCounter, CallbackInfo ci, @Loca

Matrix4f inverseBob = new Matrix4f(matrices.peek().getPositionMatrix()).invert();
RenderSystem.getModelViewStack().mul(inverseBob);
matrices.pop();

// Matrices without bob transform (for tracers, etc.)

matricesNoBob.push();
tiltViewWhenHurt(matricesNoBob, camera.getLastTickProgress());
Matrix4f inverseTilt = new Matrix4f(matricesNoBob.peek().getPositionMatrix()).invert();

// Call utility classes (apply bob correction when Iris shaders are active)

Matrix4f correctedPosition = MixinPlugin.isIrisPresent && RenderUtils.isShaderPackInUse() ? new Matrix4f(position).mul(inverseBob) : position;
RenderUtils.updateScreenCenter(projection, correctedPosition);
Matrix4f correctedPositionNoBob = MixinPlugin.isIrisPresent && RenderUtils.isShaderPackInUse() ? new Matrix4f(position).mul(inverseTilt) : position;
RenderUtils.updateScreenCenter(projection, correctedPositionNoBob);
NametagUtils.onRender(position);

// Render
// use our matrices with bob transform, not vanilla's matrixStack which is identity when Iris is active
Render3DEvent event = Render3DEvent.get(
matrices,
matricesNoBob,
renderer,
depthRenderer,
tickCounter.getTickProgress(true),
camera.getCameraPos().x,
camera.getCameraPos().y,
camera.getCameraPos().z
);

renderer.begin();
depthRenderer.begin();
MeteorClient.EVENT_BUS.post(event);
renderer.render(matrixStack);
depthRenderer.render(matrixStack);
renderer.render(matrices);
depthRenderer.render(matrices);
matrices.pop();
matricesNoBob.pop();

// Revert model view matrix

Expand Down