Questions tagged [debugging]
Debugging is a methodical process of finding and reducing the number of bugs in a game, thus making it behave as expected.
178 questions
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My scene crashed on `MonoBehaviour::VirtualRedirectTransfer`, how can I figure out which class or GameObject triggered this error
I have a Unity scene that works fine in editor, but always crash after being compiled into an executable with .NET/Mono backend, so I enabled stacktrace logging and dump the whole log into a file:
<...
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What are some basic methods/algorithms for drawing wireframe shapes using Gizmos?
This is definitely a "doing for the sake of learning" question, so apologies in advance for that, but how would you go about using the Gizmos class to draw a basic wireframe shape?
I'm ...
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Disable all Player input in Godot 3?
I'm making an "Asteroids" clone in Godot 3.2.3
the way that the Bullet is spawned in-front of the Player ship is simple : the main game node will find the Player node's position and rotation ...
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remaking Pong in Godot but the opponent AI cannot locate the ball's coordinate correctly
I'm following a detailed YouTube tutorial on remaking Pong in Godot 3.0 but I have ran into an issue regarding the way the AI opponent reacts to the incoming ball, what's happening is that the ...
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Can RenderDoc debug linux binaries?
I have downloaded RenderDoc for linux, but when passing a program as an argument it says "wrong file format", i have tried renaming to program.bin but same error.
Is it a RenderDoc linux ...
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3D Impulse based collision resolution not behaving correctly, what could be wrong?
I've implemented a collision resolution system based on Ian Mellington's System Cyclone and afterwards based on the Game Physics Cookbook. Currently the last one is implemented.
For some reason the ...
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Unity debug error “Frame not in module”
I'm creating a 2D game, and all my game layers are UI canvases. Here's the issue: during debugging, every time I click on the screen, Visual Studio stops and displays "Frame not in module," ...
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The Random.Range function isn't activating when I call it. How do I get the function to work properly and call from a range of numbers?
As you can see, I'm attempting to set the random prey integer to a number within a random range like so:
randomPrey= Random.Range(0,10);
As I type the code out the .Range doesn't turn yellow and the ...
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Remove StaticMesh via debug console in ue4
How do I in game dev build debug console:
list scene meshes
remove exact mesh causing perfomance hit?
tried:
show StaticMesh removes all meshes
https://docs....
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How can I load symbols for Composure?
I'm trying to load symbols so I can use breakpoints in Composure scripts and see how they control the PostProcessing of the SceneCapture2D component (because of this problem), but breakpoints hit. I'...
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High mass bodies that are stacked on top of each other are wobbling while sitting idly in Box2D
I'm recreating the SaturnV rocket to-scale in Box2D, which so-far involves 3 very massive rectangular bodies stacked on top of each other (1-2 million kg each). Box2D advises not to use such high mass ...
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See connected signals for instantiated Node while in Debug mode
I'm trying to debug an issue with my game, where the function that should be connected to a signal is not being called. I have a created minimal repro of the situation by:
Create a fresh Godot 4 ...
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229
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Tessellation shaders not working, no objects drawing on screen
Using this tutorial https://learnopengl.com/Guest-Articles/2021/Tessellation/Tessellation and this tutorial https://www.youtube.com/watch?v=21gfE-zUym8 I implemented tessellation shaders that I haven'...
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Respawn Player to Respawn point when colliding with a Hazard
I have grid movement set up for the player within a set space. The player moves one unit at a time and can move several units when holding down a direction key. I would like the player to respawn back ...
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No vertex shader bound at draw?
I tried asking this on reddit but I didn't get any answers so I might as well try here
So I'm making a program to generate some terrain and it's not giving me the results I expected. It's drawing ...
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How to debug Unity/mono code on Linux/VsCode
I am new to Unity and I have been fighting with VSCode and debugging.
I am trying to attach a debugger to Unity to test some code that run in the editor without running the app ( kind of Unity ...
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Determine line that threw an Exception using Android Logcat
I just installed Android logcat to debug my game from Unity's package manager. I don't fully understand how it works or in what order the logs are shown relative to my code.
The problem I have is that ...
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How to check which code has destroyed or disabled a GameObject?
In legacy code, I need to check what caused the game object to be destroyed, disabled, etc.
Is there any way to trace or to place a breakpoint to check the call stack for why the game object became ...
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Why would Nintendo (or any game developer) compile their final retail game with "debug" symbols enabled?
I read this: https://zelda64.dev/games/mm#why-is-majoras-mask-so-far-behind-ocarina-of-time
Retail versions of both games are compiled with -O2 -g3. -g3 is a debugging flag that includes far more ...
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How do I debug multi-touch for a Unity on Android platform?
I'm trying to implement multi-touch in my game but there are many bugs so far and I need a way to get info on all of the touches as the game is running. So far I haven't found any way to do this.
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Are there conventions on what exactly to log in a game?
I am currently developing a game in C++, using SDL2. For logging, I wrote this Log class:
Log.h
...
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Gizmos disappear after a scene transition
I have used OnDrawGizmos function to draw some cubes. If I run the project from that particular scene, the gizmos are visible. But after a scene transition they disappear. It appears again if I select ...
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How to inspect child nodes in IDE debugger?
Consider an enemy with this node hierarchy:
* KinematicBody2D (Enemey)
|- Sprite
|- CollisionShape
|- Area2D (StompDetector)
|- CollisionShape2D
With signal ...
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Gizmos not being drawn until GameObject selected
I have implemented Scene loading in my game and have three scenes: Persistent, Main Menu and ...
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How to get the source code for a game?
I read here a spectacular story of someone (scrappily) fixing some things in a game's source code, making it load 4 times faster!
How did the developer get the source code in the first place? Is there ...
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864
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Is it possible to debug shaders in GLSL level instead of assembly language level?
I'm writing some Vulkan code and write my shaders in GLSL.
I tried to use Renderdoc to debug my shaders, but I only got disassembly code.
Is it possible to debug shaders at the level of GLSL if I have ...
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453
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How to draw unity gizmos with new input system?
I am using the new Unity Input system for my game.
When I press a key, for example "Q", I want gizmos to be drawn.
However, I can't subscribe to a keypress event with a Gizmo drawing ...
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858
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Why do Dynamic Bones disconnect natural flow if they have ANY child gameobjects?
I've been having an issue for months now where if I have a dynamic bone chain that splits off in any way (ie. any of the chain's bones have child gameobjects), then the flow of the dynamic bone chain ...
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Help with moving object to mouse position
I'm trying to make an object follow my cursor using raycasting. I'm creating the raycast each frame and checking the player's distance from the hit and whether or not the hit landed on an object ...
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How to find a culprit BP from memory address in VS debugger causing build error messages in UE4?
I am trying to build out my project, but I keep running into a nasty error message about a BP reroute node... :(
It compiles all of the 1000 shaders and everything and just before it would finish it ...
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A Native Collection has not been disposed, resulting in a memory leak. Enable Full StackTraces to get more details
A Native Collection has not been disposed, resulting in a memory leak. Enable Full StackTraces to get more details.
In working on saving to file the ...
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Why my code changes don't take effect in editor UE4?
I have a plugin in my project to move around stuff with gizmos(much recommended tool, by the way).
It has quite a few blueprint functions that I use.
I would like to add some functionality to it, ...
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435
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Unity build fails to load anything
I made a build of my game, which is running just fine in the editor. But when I run the build, I get the splash screen, then a black screen. No graphics, no sound, no response to any input. (...
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debug unreal engine c++ - how to run in break mode
I have a number of things not working properly with my FBX imports and I would like to understand how FBX imports work internally. Now, I am noob in software development, so how do I debug the ...
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How do I debug within an animation loop?
I'm trying to see some values within an animation loop, and am naively just console.log'ing when I need to, however, this usually results in the browser crashing ...
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How can I debug a GameObject's rotation?
I have a model of a dragon, with an animation of it flying. When I play the animation in the Animator's preview, the dragon flies in a straight line, but when I run it in-game, it flies around in ...
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How do I debug OpenGL apps written in python?
How do I debug OpenGL apps written in python? I tried but I was unable to use standard tools like nvidia nsight or glsl-debugger or renderDoc on python code.
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Third person and LineTracing C++
Problem
I have a crosshair in the middle of the screen.
I need to create a lineTrace that passes straight through this crosshair.
As this is a third person game,...
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How can I fix sprite vibrating randomly which is moving towards the mouse while using camera.position set to the sprite as the center?
So, when I use
camera.position.x = player.x;
camera.position.y = player.y;
to set the center of camera to my sprite, the code doesn't work as intended to. It's ...
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Unity build does not launch and leaves no logs/errors
I have released my first title Audio Infection ( https://store.steampowered.com/app/911580/Audio_Infection/ ) for a bit over a year ago. Recently 1 user has so far encountered an issue where the game ...
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Running Unity development build in Android emulator without signing
I am working on project with a friend who uses Windows while I am using Ubuntu. We are using Unity collaborate and it's going fine except when we want to build.
The keystore is in his filesystem, <...
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How to debug shaders running on Android 4.x devices?
I have tried some of the existing inspectors such as RenderDoc and gapid, but none of them can be used with Android 4.x. Latest version of gapid requires Android 6.0 and RenderDoc requires Android 5.0....
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How to figure out what's moving my GameObject?
I have a GameObject as part of a complex scene with a handful of interconnected parts, that's moving when it shouldn't be. I've tried running under the debugger and setting breakpoints on all of the ...
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how to generate mipmap, and check if done properly?
i am implementing Mipmapping for my texture for the first time.
i have 2 questions
HOW TO CHECK IF MIPMAP IS DONE PROPERLY ?
HOW TO SET MIPMAP FOR TEXTURE FROM FILE ?
First one. i implemented texture ...
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Set-up Android SDK path to make Android remote work in Unity
I am using the Unity 2019.1.12. If I go to Edit > Preferences... > External Tools it says that the Android SDK Tools Installed with Unity (recommended).
Now I downloaded the Unity Remote 5 to my ...
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Unity get component throwing NullReferenceException only in standalone build
I'm having a very frustrating issue with GetComponent().
...
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Bizarre Physics FixedUpdate Lag spikes
So I have this large forest of around 2M tris:
Same chunk selected with view on the whole level:
It's been generated within Blender and exported as fbx into Unity. Exporting each tree as an individual ...
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Problem with Rotation clamping in Unity
I'm trying to get a simple cannon to rotate to point at the mouse, but I only want it to follow the mouse for 180 degrees and then stop following the mouse, and pick up again when the player re-enters ...
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"Unfortunately game has stopped" error on Android device
In Unity 2018.4.3f1, I am able to build my APK successfully, but when I try to launch it on my mobile device, it shows: "Unfortunately game has stopped".
I don't know the problem is. Here are the ...