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Questions tagged [gpu]

GPU (graphics processing unit), is a specialized processor designed to accelerate the process of building images.

0 votes
2 answers
190 views

How can I efficiently render lots of moving objects in a game?

I'm using OpenGL but this question should apply generally to rendering. I understand that for efficient rendering in games, you want to minimize communication between the CPU and GPU. This means pre-...
greenlagoon's user avatar
1 vote
1 answer
63 views

Efficiently passing data to the GPU corresponding to a collection of objects

I am beginning to work on a physics system, where there are multiple objects in the world that get rendered. The current approach I am considering consists of pseudo-OOP in C where each object has ...
CPlus's user avatar
  • 153
1 vote
0 answers
598 views

Completely independent dual GPU setup for VR with 100% "SLI efficiency"?

I have a simple (and maybe quite naive) question regarding dual GPU use for Virtual Reality (VR); it nagged me for years now and I couldn't figure out why this can't work, at least in principle: I ...
Felix Tritschler's user avatar
1 vote
1 answer
236 views

Is DirectX 12 or lower just an API?

I am programming a game using DirectX 12. Shall it support all GPUs? Or just newer GPUs? What about the version of the Windows OS supported? What changes when a new DirectX version comes?
Praveen Kumar's user avatar
0 votes
1 answer
2k views

Int vs Float, which one is faster for gpu?

My game need to loop through massive amount of data, and the amount of data can increase by a lot depending on world settings set by player. The data is too big for CPU so i need to use GPU for it ...
bbzz's user avatar
  • 137
0 votes
0 answers
36 views

How many divisions does the GPU's texture mapper do in parallel?

Perspective-correct texture mapping requires one division per pixel. Before the advent of GPUs this was a problem because this was quite heavy to do on the CPU (especially back in the days of non-SSE ...
Warp's user avatar
  • 171
1 vote
1 answer
324 views

Computations in GPU Unity

I've made a fluid simulation using particles in Unity, but now it is painfully slow because all computations are done using the CPU. In order to make it faster, I need to do computations on the GPU, ...
UserUser's user avatar
  • 171
0 votes
0 answers
51 views

Balance load between CPU and GPU [duplicate]

I am making a game with Unreal Engine 5, but it takes more GPU power and the CPU is used much less. I want to optimize it to use both CPU and GPU so it can be playable on low-end PCs or laptops. Is ...
Pranav Upadhyay's user avatar
0 votes
0 answers
1k views

AsyncGPUReadback.RequestIntoNativeArray - owner has been invalidated

I have the following C# code in Unity version 2022.2.0a12: ...
Corvus Ultima's user avatar
0 votes
1 answer
855 views

Use of CPU vs. GPU on mobile devices

I was always told that if a task can be parrarelized, I should put it on the GPU for better performance. Although this is defenetly true for computer GPUs, I was wondering if the mobile GPUs were so ...
Gyoo's user avatar
  • 286
0 votes
0 answers
197 views

Is it possible to use hardware acceleration in OpenCL

I built a small game engine using OpenCL and SDL2 but it's not running really fast compare to Vulkan and OpenGL. I wrote rasterization code, but when I did some research Vulkan and OpenGL use hardware ...
is code's user avatar
  • 21
0 votes
1 answer
2k views

Why do we use GLSL(Shader) instead of CUDA?

I'm meaning GLSL and CUDA both utilize GPU to their maximum power and in some cases, I heard CUDA runs faster on Nvidia graphic card. So my question is why don't we use CUDA more often for GPU graphic ...
is code's user avatar
  • 21
1 vote
1 answer
704 views

GPU Instanced Transparent Mesh Not Rendering

I'm trying to render a bunch of clouds via gpu instancing. This works perfectly fine with the default HDRP Lit Shader, and I get the following result: However, as soon as I change the surface type ...
person132's user avatar
0 votes
2 answers
10k views

Low FPS in Unreal engine, but GPU usage is low as well

I am running an Unreal Engine 4 project which has many high quality assets. My computer is fairly strong: CPU: AMD Ryzen 5 3600 6-Core GPU: GeForce RTX 3060 SSD: Lexar 500GB NM610 M.2 NVMe SSD RAM: 2 ...
Quantum Guy 123's user avatar
0 votes
1 answer
273 views

How to temporarily set additional system environment variable only in 'play' mode inside godot editor?

I'm learning godot with a laptop that has AMD discrete GPU. My OS is Arch Linux so if I want to use discrete GPU I have to set system environment variable ...
ArchBug's user avatar
  • 21

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