Questions tagged [vulkan]
Vulkan is a low-overhead, cross-platform graphics API from the Khronos Group.
vulkan
2,421
questions
0
votes
0
answers
12
views
How to layout vertex data for efficient usage in a compute shader
I want to write a small toy path tracer and I wondered what is the most performant/efficient way to layout the vertex data, I want positions, normals and tex coordinates, is it better to reduce memory ...
- 33
2
votes
1
answer
52
views
How do I correctly clone and set up VulkanMemoryAllocator for a C++ Vulkan project
I am in the process of learning to implement and use the Vulkan API for graphics programming. I am using a Dell computer with an Arch Linux OS and a g++ version 14.1.1 C++ compiler. I am going ...
- 1,753
-4
votes
0
answers
66
views
C++ executable runs correctly in Visual Studio 22 but bugs when launched manually [closed]
I'm trying to debug a C++/vulkan program using renderdoc. The code is ensentially the one provided by this tutorial after episode 5: https://www.youtube.com/watch?v=lr93-_cC8v4&list=...
- 1
1
vote
1
answer
53
views
Vulkan command execution seems to only finish when corresponding fence object is checked
In my application Vulkan validation layers complained that fences and semaphores could not be destroyed, as they were still in use.
The message was "somewhat weird" as it claimed e.g.
...
- 23
2
votes
0
answers
51
views
Vulkan - VK_ERROR_INCOMPATIBLE_DRIVER error in Apple M2
With this code:
#include <vulkan/vulkan.h>
#include <iostream>
#include <stdexcept>
#include <cstdlib>
#include <vector>
class HelloTriangleApplication {
public:
...
0
votes
1
answer
25
views
Multiple Buffers In One Device Memory
I would like to combine my several buffers into a single device memory.
If their alignment requirements are different, how should I treat when allocating and mapping memory. Should I calculate ...
- 59
0
votes
0
answers
58
views
Getting VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR working on Windows
I found a post asking about the same question:
Vulkan and transparent windows
However, the person asking the question wasn't checking whether VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR was supported. I ...
- 3,704
0
votes
1
answer
64
views
How to Pass Previous Frame as Sampler2D to Fragment Shader in Vulkan?
I am currently developing a Vulkan project and I am facing an issue that I cannot resolve.
I need to pass the image of the previous frame as a sampler2D to the fragment shader. I have followed the ...
0
votes
0
answers
27
views
Translated meshes appear tilted towards camera
I'm using Vulkan APIs to render meshes with the standard projection-view-model matrix approach. However, when translating objects, they appear tilted and distorted, always facing the camera. I don't ...
- 11
0
votes
0
answers
30
views
Sync issue for gl_InstanceIndex between vertex and fragment shader
I'm trying to implement this OpenGL text-rendering tutorial in Vulkan:
https://learnopengl.com/In-Practice/Text-Rendering
and the improvements in this video:
https://www.youtube.com/watch?v=...
- 89
1
vote
1
answer
57
views
Excluding Vulkan validation library from Android debug build that uses Flutter
We've recently upgraded to Flutter 3.22.1 and I noticed that our debug build apks have increased by over 240M. There is a shared library in the apk called:
libVkLayer_khronos_validation.so
This ...
- 4,798
0
votes
2
answers
88
views
Vulkan validation error: "Semaphore must not have any pending operations." from vkAcquireNextImageKHR
I recently forked an old Vulkan project of mine, written in Java with LWJGL. While I was testing it to start modifying it I noticed the following validation error, generated on each frame:
[Renderer] ...
1
vote
0
answers
21
views
How can I get a ‘dispatch id’ in task shader called by vkCmdDrawMeshTasksIndirectEXT?
I fill VkDrawMeshTasksIndirectCommandEXT in one compute shader, then invoke once vkCmdDrawMeshTasksIndirectEXT to draw every thing.
The problem is that I don't know which instance, which meshlet I am ...
- 11
0
votes
0
answers
44
views
Depth image(pyramid) transition syncronization issues
Following the Vulkan guide(https://vkguide.dev/docs/gpudriven/compute_culling/) (extra-engine branch), and having problems with depth pyramid image transition. Vulkan gives this error
\>VkImage ...
- 25
0
votes
0
answers
43
views
Vulkan output "magically" sticking to output window for vk::Format::eA2B10G10R10UnormPack32
Doing my very first steps with Vulkan (basically following the steps in https://vulkan-tutorial.com/ to render the "magic" color triangle everybody starts with) I managed to do the needed ...
- 23