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Old games never die, they just fade away...

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openarena vulkan quake3 game engine loongnix

vkopenarena's Introduction

OpenArena Engine

checkout the SDL2 branch for stable build and playing, the following description works for SDL2 branch.
the master branch is under developing now, mouse input event process are not as good as sdl2 branch, have influence on rocket jump, it seems that the mouse acceration too big, i dont know what is the reason.

This project is a fork of OpenArena with specific changes to its renderer module. It is mainly for myself to study Vulkan/OpenGL API and Quake3's engine, I add a vulkan-based renderer to this game, its not a very good implement. the vulkan-based renderer have the nearly same visual effects with the default opengl1 renderer. It just fast prototype to get a feeling of vulkan API. ( Informing you in case of you are disappointed, vulkan is just a 2D/3D render API, whether the rendered image is beautiful depend more on the textures，shaders，material provided). If you want learn Vulkan, you'd better go to other place. The project is under developing, so always check the lastest build.

The opengl2 render module ported from ioq3 is more beatiful and powerful, you can play with the cvars(r_pbr, r_cubemapping, r_hdr, r_ssao ...) to enable corresponding feature. It also consume more compute power and need more memory, set com_hunkMegs to 256 instead of 128, otherwise it will quit and inform you hunk
allocate failed when there are more player playing or in the case of some large map. See ioq3 rendergl2 readme.

In my test( See the benchmark blow), The vulkan-based backend run faster on newer hardware, however it may run slower than opengl1 on older harware. For example my notebook(i5 5200U, Gforce 840M), but this notebook have a 1366x768 resolutions with ubuntu 16.04 installed, other computer is 1920x1080. I'm now curious about whether it is accurate or meaningful, there are many factors, such as the monitor's resolutions, the driver version, operate system and library etc. which one is major factor? You are welcome to have test on your pc configuration and report the results.

Quake 3 arena released by ID 20 years ago, this code lead me to something deep. It's still too large to understand for a noob programmer likes me. I'm naive, low level code modifier. I will take more time to learn Vulkan/OpenGL, data structure and algorithm, computer network, operate system and compiler technology seriously, reduce aimless changing the code which tend to introduce bugs. There may have bugs instrinsic in the code. If i could find it, i will try to fixed it. However, there may some I am not able to find and some I could not fix in a short time.

For people who want to try the vulkan based renderer on quake3's map, go to https://github.com/suijingfeng/vkQuake3.

You can also compile the render module from this repository and copy the renderer binary( renderer_vulkan_x86_64.so or .dll ) to where ioquake3's executable binary directory. Select the renderer in pull down window with cl_renderer vulkan followed by vid_restart.

Building on Ubuntu or Debian Linux

Install the build dependencies.

$ sudo apt-get install libcurl4-openssl-dev libopenal-dev libgl1-mesa-dev
$ sudo apt-get install clang gcc make git

# libvulkan-dev is optional, it provide validation layer for debug bulid, 
# release build dont need it.
sudo apt-get install libvulkan-dev

# If you have a AMD GPU
$ sudo apt-get install mesa-vulkan-drivers


$ git clone https://github.com/suijingfeng/vkOpenArena.git
$ cd vkOpenArena
$ make -j$(nproc)

Building on fedora 30

$ yum install clang gcc make git
$ yum install openal-soft-devel.x86_64
$ yum install alsa-lib-devel.x86_64
$ yum install mesa-libGL-devel.x86_64
$ yum install libcurl-devel.x86_64
$ yum install mesa-vulkan-drivers.x86_64
$ yum install mesa-vulkan-devel.x86_64

# if build on master branch
$ yum install libxcb-devel.x86_64
$ yum install libX11-devel.x86_64
$ yum install libXrandr-devel.x86_64

# if build the on SDL2 branch
$ yum install SDL2-devel.x86_64

$ make -j$(nproc)

Build the master branch on Loongnix

# yum install gcc make git
# yum install alsa-lib-devel.mips64el libXrandr-devel.mips64el libcurl-devel.mips64el openal-soft-devel.mips64el
$ make -j$(nproc)

Building on Windows 7 or 10

To build 64-bit binaries, follow these instructions:

Install msys2 from https://msys2.github.io/ , following the instructions there.
Start "MinGW 64-bit" from the Start Menu, NOTE: NOT MSYS2.
Install mingw-w64-x86_64, make, git and necessary libs.

pacman -S mingw-w64-x86_64-gcc make git

Grab latest openarena source code from github and compile. Note that in msys2, your drives are linked as folders in the root directory: C:\ is /c/, D:\ is /d/, and so on.

$ git clone https://github.com/suijingfeng/vkOpenArena.git
$ cd vkOpenArena
$ make -j4

Find the executables and dlls in build/release-mingw64-x86_64 .

Building with vs2017

I am trying to add vs2017 project files(OpenArena.sln) for build this repository, it is on the developing stage, you can find it at vkOpenArena\misc\msvc17\OpenArena\

Currently, only vulkan and d3d12 based renderer merely works, need time fix a lot of thing ...

find the the executable at vkOpenArena\misc\msvc17\bin\x64\Release

RUN

First, download the map packages from http://openarena.ws/download.php Second, extract the data files at ~/.OpenArena/ (on linux) C:\Users\youname\AppData\Roaming\OpenArena\ (on windows)

$ cd ./build/release-linux-x86_64/
$ ./openarena.x86_64

Change Field of Vision (FOV)

# cg_fov default value is 90, but it's a not good value for widescreen
# I generally set cg_fov to 150, the max value is 160, some game mod
# restrict this value to 140.

$ \cg_fov 150

Too dark ? How to turn the brightness of the drawing window ?

r_brightness and r_gamma, both value can be float, large number make the image more brighter. You must restart the game after change it.

r_gamma nonlinearly calibrate the image before it is uploaded to GPU.
r_brightness turn the intensity of the lightmap, it doesn't influence image brightness, as it intended only for lightmap.

$ \r_gamma 1.2
$ \r_brightness 2.0 
$ \vid_restart

r_mapOverbrightBit, integer, defalut is 2
r_intensity, r_overbrightBit get remove in vulkan render, dont influence other renderer module.

NOTE: Original gamma setting program set the gamma of the entire destop which works on graphic card support hardware gamma. Newer computer hardware works but not on old machine base on my test. It is buggy and embarrasing when program abnormal quit or stall accidently, leaving the desktop entire washing write. So we use software gamma only, take effects before the image is uploaded to GPU. Does lightmap need gamma correction ? I have no idea.

Switching renderers

Q: How to enable vulkan support from the pulldown console ?

\cl_renerer vulkan
\vid_restart

# then play

# Enable renderergl2 ported from ioq3
\cl_renerer opengl2
\vid_restart

# Enable renderergl1 ported from ioq3
\cl_renerer opengl1
\vid_restart

# Enable d3d12 ported from kenny
\cl_renerer d3d12
\vid_restart

# Enable openarena
\cl_renerer openarena
\vid_restart

When you start OpenArena, you can switch witch dynamic library to load by passing its name.

Example:

# New vulkan renderer backend, under developing, 
# work on ubuntu 18.04, ubuntu16.04, win10, win7.
# associate code located in code/renderer_vulkan, see readme there.
$ ./openarena.x86_64 +set cl_renderer vulkan

# Enable renderergl2( borrowed from ioq3 ):
$ ./openarena.x86_64 +set cl_renderer opengl2

# Enable the renderergl1( borrowed from ioq3 ):
$ ./openarena.x86_64 +set cl_renderer opengl1


# Enable the default OpenArena renderer:
# This renderer module is similiar to the renderergl1 code.
$ ./openarena.x86_64 +set cl_renderer openarena

Q: How to check that Vulkan backend is really active ?

\vkinfo

Type \vkinfo in the console reports information about active rendering backend.
It will report something as following:

Active 3D API: Vulkan
Vk api version: 1.0.65
Vk driver version: 1637679104
Vk vendor id: 0x10DE (NVIDIA)
Vk device id: 0x1B80
Vk device type: DISCRETE_GPU
Vk device name: GeForce GTX 1080

Total Device Extension Supported:

...

Vk instance extensions:

...

Image chuck memory(device local) used: 8 M

Besides, the following new cmd only exist in vulkan renderer.

printMemUsage: GPU and/or CPU memory usage(for store image data, staging buffer and vertice buffer etc).
printOR: print the value of backend.or.
pipelineList: list the number of pipelines we have created for the shader stage. (about 80~100, seem too much?)
displayResoList: list of the display resolution the render software provided.
printDeviceExtensions: list the device extensions supported on you GPU
printInstanceExtensions: list the instance extensions supported on you GPU
printImgHashTable: print the image hash table usage, which also list the image created and its size info etc.
printShaderTextHashTable: I am curious about the q3 handle out the shader name clash problem.
printPresentModes: print the present mode the GPU and/or the vulkan driver supported.
printSurfaceFormatSupported: printf color surface format supported .
monitorInfo: you monitor and/or vulkan driver actually supported resolution, need the vulkan driver support the VK_KHR_display instance extension. It only supported on linux platform on my test. what's worse, it actually not work properly( especially on old graphic/video card ) even though the nvidia vulkan driver (ubuntu 18.04, 1.0.65 and ubuntu16.04, 1.0.49) admit the surport. In this case \monitorInfo will print nothing, maybe the driver side bug?

For example:

$ \monitorInfo
 Display 0: LG Electronics LG HDR WFHD (HDMI-0). 
 Resolution: 2560x1080, Dimension: 800x340. 
 -------- --------------------- --------
 Display Mode Propertie 0: 2560x1080 60.0 hz. 
 Display Mode Propertie 1: 1920x1080 60.0 hz. 
 Display Mode Propertie 2: 1920x1080 59.9 hz. 
 Display Mode Propertie 3: 1280x720 59.9 hz. 
 Display Mode Propertie 4: 720x480 59.9 hz. 
 Display Mode Propertie 5: 640x480 59.9 hz. 
 Display Mode Propertie 6: 1920x1080 50.0 hz. 
 Display Mode Propertie 7: 1280x720 50.0 hz. 
 Display Mode Propertie 8: 2560x1080 50.0 hz. 
 Display Mode Propertie 9: 2560x1080 59.9 hz. 
 Display Mode Propertie 10: 720x576 50.0 hz. 
 Display Mode Propertie 11: 3840x2160 24.0 hz. 
 Display Mode Propertie 12: 3840x2160 25.0 hz. 
 Display Mode Propertie 13: 3840x2160 30.0 hz. 
 Display Mode Propertie 14: 3840x2160 50.0 hz. 
 Display Mode Propertie 15: 3840x2160 59.9 hz. 
 Display Mode Propertie 16: 2560x1080 75.0 hz. 
 Display Mode Propertie 17: 2560x1440 60.0 hz. 
 Display Mode Propertie 18: 1152x864 60.0 hz. 
 Display Mode Propertie 19: 1280x1024 60.0 hz. 
 Display Mode Propertie 20: 1280x720 60.0 hz. 
 Display Mode Propertie 21: 1600x900 60.0 hz. 
 Display Mode Propertie 22: 1680x1050 60.0 hz. 
 Display Mode Propertie 23: 1920x1080 60.0 hz. 
 Display Mode Propertie 24: 1280x800 59.8 hz. 
 Display Mode Propertie 25: 1920x1080 75.0 hz. 
 Display Mode Propertie 26: 640x480 59.9 hz. 
 Display Mode Propertie 27: 640x480 75.0 hz. 
 Display Mode Propertie 28: 800x600 60.3 hz. 
 Display Mode Propertie 29: 800x600 75.0 hz. 
 Display Mode Propertie 30: 1024x768 60.0 hz. 
 Display Mode Propertie 31: 1024x768 75.0 hz. 
 Display Mode Propertie 32: 1280x1024 75.0 hz. 
 Display Mode Propertie 33: 3840x2160 30.0 hz. 
 Display Mode Propertie 34: 3840x2160 25.0 hz. 
 Display Mode Propertie 35: 3840x2160 24.0 hz.

software provided resolution

$ \displayResoList 

Mode  0: 320x240
Mode  1: 400x300
Mode  2: 512x384
Mode  3: 640x480 (480p)
Mode  4: 800x600
Mode  5: 960x720
Mode  6: 1024x768
Mode  7: 1152x864
Mode  8: 1280x1024
Mode  9: 1600x1200
Mode 10: 2048x1536
Mode 11: 856x480
Mode 12: 1280x720 (720p)
Mode 13: 1280x768
Mode 14: 1280x800
Mode 15: 1280x960
Mode 16: 1360x768
Mode 17: 1366x768
Mode 18: 1360x1024
Mode 19: 1400x1050
Mode 20: 1400x900
Mode 21: 1600x900
Mode 22: 1680x1050
Mode 23: 1920x1080 (1080p)
Mode 24: 1920x1200
Mode 25: 1920x1440
Mode 26: 2560x1080
Mode 27: 2560x1600
Mode 28: 3840x2160 (4K)

$ \r_mode 12
$ \vid_restart

Q: save a screenshot ?

# OA and IOQ3 originally save to hidden dir which not easy to find
# typically appdata\roaming (windows) and ./local
screenshotJPEG
screenshotTGA

# those just save to where the current executable locate 
screenshotPNG
screenshotBMP
screenshotJPG
screenshot(same with screenshotJPG, press F12 on UI or F11 on gamming)

Q: How to use check FPS or using it as a benchmarking tool?

\timedemo 1
\demo demo088-test1

AMD2700X CPU, GTX1080 GPU, 1920x1080 60 hz LG display

# Frames  TotalTime  averageFPS  minimum/average/maximum/std deviation

# tested on win10 OS:
render_vulkan: 3398 frames 4.3 seconds 793.6 fps 1.0/1.3/4.0/0.5 ms
render_gl2:    3398 frames 24.6 seconds 138.3 fps 1.0/7.2/18.0/1.8 ms
render_gl1:    3398 frames 8.1 seconds 417.2 fps 1.0/2.4/8.0/0.9 ms
render_oa:     3398 frames 8.0 seconds 423.7 fps 1.0/2.4/8.0/0.9 ms

# tested on Ubuntu18.04:
render_vulkan: 3398 frames 3.6 seconds 935.6 fps 0.0/1.1/2.0/0.3 ms
render_gl2:    3398 frames 6.8 seconds 503.2 fps 1.0/2.0/6.0/0.6 ms
render_gl1:    3398 frames 5.4 seconds 629.7 fps 1.0/1.6/4.0/0.6 ms
render_mydev:  3398 frames 5.0 seconds 686.2 fps 1.0/1.5/3.0/0.5 ms
render_oa:     3398 frames 5.3 seconds 646.9 fps 1.0/1.5/4.0/0.5 ms

HardWare: Aspire E5-471G-51SP, i5-5200U, GeForce 840M, 1366x768

\timedemo 1
\demo demo088-test1

# Testing on UBUNTU 16.04, driver: 384.130, vulkan 1.0.49, tested on 2019.05.29,
opengl1: 3398 frames 10.1 seconds 337.0 fps 1.0/3.0/6.0/0.8 ms
vulkan : 3398 frames 21.0 seconds 162.2 fps 3.0/6.2/11.0/1.1 ms
opengl2: 3398 frames 25.1 seconds 135.5 fps 4.0/7.4/14.0/1.5 ms


# Testing on WIN10 Pro 64-bit, Driver version 397.31 
vulkan : 3398 frames 14.5 seconds 233.6 fps 1.0/4.3/14.0/1.6 ms
opengl2: 3398 frames 83.4 seconds 40.8 fps 8.0/24.5/331.0/9.6 ms
opengl1: 3398 frames 22.2 seconds 152.8 fps 2.0/6.5/17.0/1.9 ms

# opengl2 renderer achieve best virsual result but also consume the compute power most
# which in other word is slow, but it is ok on modern GPU/CPU.
# it is NOT OK on i5-5200U, GeForce 840M, I think.

\com_speed 1
# opengl2 backend
frame:24071 all: 13 sv:  0 ev:  0 cl:  0 gm:  0 rf:  1 bk: 12
frame:24072 all: 19 sv:  0 ev:  0 cl:  0 gm:  0 rf:  1 bk: 18
frame:24073 all:  9 sv:  1 ev:  0 cl:  0 gm:  0 rf:  1 bk:  7
frame:24074 all: 20 sv:  0 ev:  0 cl:  1 gm:  0 rf:  0 bk: 19
frame:24075 all:  9 sv:  0 ev:  0 cl:  1 gm:  0 rf:  0 bk:  8
frame:24080 all: 10 sv:  0 ev:  0 cl:  1 gm:  0 rf:  0 bk:  9
frame:24081 all:  8 sv:  0 ev:  1 cl:  0 gm:  0 rf:  1 bk:  7
frame:24083 all: 10 sv:  0 ev:  0 cl:  1 gm:  0 rf:  0 bk:  9
frame:24084 all: 17 sv:  0 ev:  0 cl:  1 gm:  0 rf:  1 bk: 15
frame:24085 all:  9 sv:  0 ev:  0 cl:  1 gm:  0 rf:  0 bk:  8
frame:24086 all: 10 sv:  0 ev:  0 cl:  1 gm:  0 rf:  0 bk:  9
frame:24090 all:  9 sv:  1 ev:  0 cl:  0 gm:  0 rf:  0 bk:  8
frame:24092 all:  8 sv:  0 ev:  0 cl:  1 gm:  0 rf:  0 bk:  7

Aspire v3-772G i7-4702MQ GeForce GTX 760M 1920x1080 refresh_rate: 60Hz

# Testing on ubuntu 18.04 gnome, nvidia vulkan driver 1.0.65 
render_vulkan: 3398 frames 15.0 seconds 225.9 fps 2.0/4.4/9.0/0.7 ms
# old
vulkan: 3398 frames 13.1 seconds 260.2 fps 2.0/3.8/7.0/0.7 ms
opengl1: 3398 frames 7.9 seconds 429.2 fps 1.0/2.3/6.0/0.6 ms
opengl2: 3398 frames 18.1 seconds 188.1 fps 3.0/5.3/23.0/1.0 ms
mydev: 3398 frames 7.5 seconds 450.5 fps 1.0/2.2/5.0/0.6 ms
openarena: 3398 frames 7.7 seconds 444.2 fps 1.0/2.3/5.0/0.6 ms

# Testing on win7, Vk api version: 1.1.70
Vk driver version: 1669513216

vulkan: 3398 frames 17.4 seconds 195.1 fps 1.0/5.1/24.0/1.8 ms
opengl1: 3398 frames 21.1 seconds 160.9 fps 2.0/6.2/23.0/1.8 ms
opengl2: 3398 frames 47.6 seconds 71.4 fps 5.0/14.0/81.0/2.4 ms

GT72VR 6RD, i7-6700HQ, GTX 1060, ubuntu 18.04 GNOME 3.28.2,

vulkan:  3398 frames 4.6 seconds 731.2 fps 1.0/1.4/3.0/0.5 ms
opengl1: 3398 frames 5.8 seconds 589.2 fps 1.0/1.7/6.0/0.6 ms
opengl2: 3398 frames 7.2 seconds 469.7 fps 1.0/2.1/21.0/0.7 ms

Testing on fedora 30, Radeon RX 580, AMD Ryzen 7 2700x, 2560x1080 LG34WK659 ultrawide monitor, DNOME 3.32.0, Mesa 19.1.6

SDL2 branch, vulkan: 3398 frames 5.6 seconds 604.3 fps 1.0/1.7/3.0/0.5 ms
SDL2 branch, opengl1: 3398 frames 6.9 seconds 490.3 fps 1.0/2.0/8.0/0.6 ms

libx11, vulkan: 3398 frames 5.6 seconds 609.5 fps 1.0/1.6/3.0/0.5 ms
libx11, opengl1: 3398 frames 7.2 seconds 474.3 fps 1.0/2.1/6.0/0.7 ms

even if the framerate is high, but if i can not progroamming the event process module correctly, or dont have a network, the feeling of play this game is like eating shit!

Testing on fedora 30, AMD wx 5100, AMD Ryzen 7 2700x, 2560x1080 LG34WK659 ultrawide monitor, DNOME 3.32.0, Mesa 19.1.6

opengl1: 3398 frames 7.0 seconds 486.6 fps 1.0/2.1/8.0/0.6 ms
opengl2: 3398 frames 7.5 seconds 455.8 fps 1.0/2.2/9.0/0.6 ms
vulkan:  3398 frames 6.8 seconds 503.1 fps 1.0/2.0/4.0/0.6 ms

Testing on Loongnix, LG34WK659 2560x1080 ultrawide monitor, Mesa 18.0.5, LOONGSON 3A3000 CPU, AMD R7 430 GPU.

# there no native compiler for MIPS, the CPU is the bottle neck. :(

opengl1: 3398 frames 70.6 seconds 48.1 fps 11.0/20.8/57.0/4.5 ms

Testing on Loongnix, AOC 1920x1080 monitor, Mesa 18.0.5, LOONGSON 3A3000 CPU, AMD RX 580 GPU.

opengl1: 3398 frames 64.5 seconds 52.7 fps 9.0/19.0/35.0/4.1 ms

# the cpu is the bottle neck, using better GPU is not meaningful

OpenArena gamecode

Description

It's non engine part of OA, includes game, cgame and ui. In mod form it is referred as OAX.

Loading native dll(.so)

cd linux_scripts/
./supermake_native

Links

Development documentation is located here: https://github.com/OpenArena/gamecode/wiki

The development board on the OpenArena forum: http://openarena.ws/board/index.php?board=30.0

In particular the Open Arena Expanded topic: http://openarena.ws/board/index.php?topic=1908.0

Status

Initial testing on Ubuntu16.04 and Ubuntu18.04, Win7 and Win10

License

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

bugs/issues

About com_hunkmegs

The following errors occurs:

ERROR: Hunk_Alloc failed on 739360: code/renderergl2/tr_model.c, line: 535 (sizeof(*v) * (md3Surf->numVerts * md3Surf->numFrames)).

OpenGL2 renderer seems use more memory, Upping com_hunkmegs to 256 will generally be OK.

Different results compile OA without -fno-strict-aliasing I am using GCC7.2 and clang6.0 on ubuntu18.04.

Build OA using clang with -fno-strict-aliasing removed:

WARNING: light grid mismatch, l->filelen=103896, numGridPoints*8=95904

This is printed by renderergl2's R_LoadLightGrid function.

Problem solved with following line added in it.

ri.Printf( PRINT_WARNING, "s_worldData.lightGridBounds[i]=%d\n", s_worldData.lightGridBounds[i]);

However this line do nothing but just printed the value of s_worldData.lightGridBounds[i]. I guess its a bug of clang.

Build OA with GCC without this issue.

E_AddRefEntityToScene passed a refEntity which has an origin with a NaN component
Unpure client detected. Invalid .PK3 files referenced!
Shader rocketThrust has a stage with no image

TODO

merge rendergl1, rendereroa, renderer_mydev to one module
r_gamma shader
have issues with \minimize when use vulkan renderer in fullscreen. recreate the swapchain ?
flare support
Implement RB_SurfaceAxis();
Split the program with the data.
Use gprof to examine the performance of the program

gprof openarena.x86_64 gmon.out > report.txt

Use git cancel a commit

 git reset --soft HEAD^

vkopenarena's People

Contributors

Stargazers

Watchers

Forkers

kvark morlackx quakeengines quakemods orb1t-ua germanaizek

vkopenarena's Issues

learning MIPS, try to add mips64r2 arch native instructions translation support

for loongson 3a3000

view got fliped looking from the back side of mirror

interesting? R_MirrorViewBySurface ? any help?

Unable to clone the repository due to invalid name in docs

"https://github.com/suijingfeng/vkOpenArena/tree/master/doc/Let%A1%AFs%20Write%20a%20Quake%203%20Graphics%20Engine%20in%20OpenGL_files"

This confuse both Github and my local OSX machine. Please remove or rename.

torch light not rendered correctly

dont know where is the problem and how to fix this

ERROR: programStack corrupted in compiled code

using msvc2017 compile vm_x86.c and vm_x86_64.asm got this.

monitorInfo on win10 rage quit

render_vulkan don't draw skybox correctly

but renderer_mydev have drawed the sky box cube edge, and i dont know where the code is usedto draw it.

UI don't display players model in setting

UI render error

R_FindImageFile: Fail loading menuback_blueish the from disk
R_FindImageFile: Fail loading menubacknologo_blueish the from disk

have issue on :F CTF server

VK Object 0xXXXX still has a reference to mem obj 0xXXXX

debug build enable validation callback, many many warnings ...

shot gun marks effect artificial

i dont know what's the reason.

debug version shutdown report Pipeline object 0x40 has not been destroyed

ERROR: ObjectTracker Object: 0x40 | OBJ ERROR : For device 0x559c957268c0, Pipeline object 0x40 has not been destroyed. The spec valid usage text states 'All child objects created on device must have been destroyed prior to destroying device' (https://www.khronos.org/registry/vulkan/specs/1.0/html/vkspec.html#VUID-vkDestroyDevice-device-00378)

I dont know what it is.

SDL2 still use libx11 on linux platform, no xcb and wayland support for vulkan backend?

SDL2 branch failed to compile

$ uname -ar
Linux orion.dev 5.6.8-300.fc32.ppc64le #1 SMP Wed Apr 29 17:40:17 UTC 2020 ppc64le ppc64le ppc64le GNU/Linux

$ gcc --version
gcc (GCC) 10.1.1 20200507 (Red Hat 10.1.1-1)

$ rpm -q SDL2-devel
SDL2-devel-2.0.12-1.fc32.ppc64le

$ make

make[1]: Entering directory '/home/tle/src/vkOpenArena'

  Building in build/release-linux-ppc64le:
  PLATFORM: linux
  ARCH: ppc64le
  VERSION: 3.0.0a
  COMPILE_PLATFORM: linux
  COMPILE_ARCH: ppc64le
  HAVE_VM_COMPILED: 
  CC: cc

  CFLAGS:
    -Wall -Wimplicit -Wstrict-prototypes -pipe -DUSE_ICON -DARCH_STRING="ppc64le" -m64 -DNO_VM_COMPILED -DNO_GZIP -Icode/zlib -DUSE_INTERNAL_JPEG -Icode/jpeg-8c
    -DUSE_LOCAL_HEADERS -DSTANDALONE -DPRODUCT_VERSION="3.0.0a" -Wformat=2 -Wformat-security -Wno-format-nonliteral -Wmissing-format-attribute -Wdisabled-optimization
    -Werror-implicit-function-declaration -MMD -DNDEBUG -O2 -ffast-math

  CLIENT_CFLAGS:
    -I/usr/include/SDL2 -D_REENTRANT -DUSE_OPENAL -DUSE_OPENAL_DLOPEN -DUSE_CURL -DUSE_CURL_DLOPEN -DUSE_CODEC_OPUS -DOPUS_BUILD -DHAVE_LRINTF -DFLOATING_POINT
    -DFLOAT_APPROX -DUSE_ALLOCA -Icode/opus-1.2.1/include -Icode/opus-1.2.1/celt -Icode/opus-1.2.1/silk -Icode/opus-1.2.1/silk/float -Icode/opusfile-0.9/include
    -DUSE_CODEC_VORBIS -Icode/libvorbis-1.3.6/include -Icode/libvorbis-1.3.6/lib -Icode/libogg-1.3.3/include -DUSE_RENDERER_DLOPEN -DUSE_MUMBLE

  SERVER_CFLAGS:
    

  LDFLAGS:
    

  LIBS:
    -ldl -lm

  CLIENT_LIBS:
    -lSDL2 -lcurl -lrt

  Output:
    oa_ded.ppc64le
    openarena.ppc64le
    renderer_openarena_ppc64le.so
    renderer_opengl1_ppc64le.so
    renderer_opengl2_ppc64le.so
    renderer_vulkan_ppc64le.so
    renderer_mydev_ppc64le.so
    baseoa/cgameppc64le.so
    baseoa/qagameppc64le.so
    baseoa/uippc64le.so
    missionpack/cgameppc64le.so
    missionpack/qagameppc64le.so
    missionpack/uippc64le.so

make[2]: Entering directory '/home/tle/src/vkOpenArena'
LD build/release-linux-ppc64le/oa_ded.ppc64le
LD build/release-linux-ppc64le/openarena.ppc64le
REF_CC code/renderer_oa/tr_flares.c
REF_CC code/renderer_oa/tr_main.c
REF_CC code/renderer_oa/tr_sky.c
REF_CC code/renderer_oa/matrix_multiplication.c
REF_CC code/renderergl1/tr_image_pcx.c
REF_CC code/renderergl1/tr_image_png.c
REF_CC code/renderergl1/tr_image_tga.c
REF_CC code/renderergl1/tr_init.c
REF_CC code/renderergl1/tr_light.c
REF_CC code/renderergl1/tr_main.c
REF_CC code/renderergl1/tr_marks.c
REF_CC code/renderergl1/tr_model.c
REF_CC code/renderergl1/tr_model_iqm.c
REF_CC code/renderergl1/tr_noise.c
REF_CC code/renderergl1/tr_scene.c
REF_CC code/renderergl1/tr_shade.c
REF_CC code/renderergl1/tr_shade_calc.c
REF_CC code/renderergl1/tr_shader.c
REF_CC code/renderergl1/tr_shadows.c
REF_CC code/renderergl1/tr_sky.c
REF_CC code/renderergl1/tr_surface.c
REF_CC code/renderergl1/tr_world.c
REF_CC code/renderergl1/tr_common.c
REF_CC code/renderergl1/matrix_multiplication.c
REF_CC code/renderercommon/sdl_glimp.c
REF_CC code/qcommon/q_shared.c
REF_CC code/qcommon/puff.c
REF_CC code/qcommon/q_math.c
In file included from code/renderer_oa/matrix_multiplication.c:8:
/usr/lib/gcc/ppc64le-redhat-linux/10/include/xmmintrin.h:54:2: error: #error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
   54 | #error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
      |  ^~~~~
In file included from /usr/lib/gcc/ppc64le-redhat-linux/10/include/xmmintrin.h:79,
                 from code/renderer_oa/matrix_multiplication.c:8:
/usr/lib/gcc/ppc64le-redhat-linux/10/include/mmintrin.h:52:2: error: #error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
   52 | #error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
      |  ^~~~~
/usr/bin/ld: build/release-linux-ppc64le/ded/sv_game.o: in function `SV_GameSystemCalls':
sv_game.c:(.text+0x3964): undefined reference to `qsnapvectorsse'
In file included from code/renderergl1/matrix_multiplication.c:8:
/usr/lib/gcc/ppc64le-redhat-linux/10/include/xmmintrin.h:54:2: error: #error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
   54 | #error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
      |  ^~~~~
In file included from /usr/lib/gcc/ppc64le-redhat-linux/10/include/xmmintrin.h:79,
                 from code/renderergl1/matrix_multiplication.c:8:
/usr/lib/gcc/ppc64le-redhat-linux/10/include/mmintrin.h:52:2: error: #error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
   52 | #error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
      |  ^~~~~
collect2: error: ld returned 1 exit status
make[2]: *** [Makefile:2260: build/release-linux-ppc64le/oa_ded.ppc64le] Error 1
make[2]: *** Waiting for unfinished jobs....
In file included from code/renderer_oa/matrix_multiplication.h:5,
                 from code/renderer_oa/matrix_multiplication.c:11:
/usr/lib/gcc/ppc64le-redhat-linux/10/include/xmmintrin.h:54:2: error: #error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
   54 | #error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
      |  ^~~~~
make[2]: *** [Makefile:2685: build/release-linux-ppc64le/renderer_oa/matrix_multiplication.o] Error 1
In file included from code/renderergl1/matrix_multiplication.h:5,
                 from code/renderergl1/matrix_multiplication.c:11:
/usr/lib/gcc/ppc64le-redhat-linux/10/include/xmmintrin.h:54:2: error: #error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
   54 | #error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
      |  ^~~~~
make[2]: *** [Makefile:2701: build/release-linux-ppc64le/renderergl1/matrix_multiplication.o] Error 1
code/renderergl1/tr_image_pcx.c: In function ‘R_LoadPCX’:
code/renderergl1/tr_image_pcx.c:74:38: warning: passing argument 2 of ‘ri.FS_ReadFile’ from incompatible pointer type [-Wincompatible-pointer-types]
   74 |  int len = ri.FS_ReadFile( filename, &raw);
      |                                      ^~~~
      |                                      |
      |                                      char **
code/renderergl1/tr_image_pcx.c:74:38: note: expected ‘void **’ but argument is of type ‘char **’
code/renderergl1/tr_image_tga.c: In function ‘R_LoadTGA’:
code/renderergl1/tr_image_tga.c:65:34: warning: passing argument 2 of ‘ri.FS_ReadFile’ from incompatible pointer type [-Wincompatible-pointer-types]
   65 |  length = ri.FS_ReadFile ( name, &buffer);
      |                                  ^~~~~~~
      |                                  |
      |                                  char **
code/renderergl1/tr_image_tga.c:65:34: note: expected ‘void **’ but argument is of type ‘char **’
In file included from code/renderer_oa/matrix_multiplication.h:5,
                 from code/renderer_oa/tr_flares.c:24:
/usr/lib/gcc/ppc64le-redhat-linux/10/include/xmmintrin.h:54:2: error: #error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
   54 | #error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
      |  ^~~~~
In file included from code/renderer_oa/matrix_multiplication.h:5,
                 from code/renderer_oa/tr_main.c:25:
/usr/lib/gcc/ppc64le-redhat-linux/10/include/xmmintrin.h:54:2: error: #error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
   54 | #error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
      |  ^~~~~
In file included from /usr/lib/gcc/ppc64le-redhat-linux/10/include/xmmintrin.h:79,
                 from code/renderer_oa/matrix_multiplication.h:5,
                 from code/renderer_oa/tr_main.c:25:
/usr/lib/gcc/ppc64le-redhat-linux/10/include/mmintrin.h:52:2: error: #error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
   52 | #error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
      |  ^~~~~
In file included from /usr/lib/gcc/ppc64le-redhat-linux/10/include/xmmintrin.h:79,
                 from code/renderer_oa/matrix_multiplication.h:5,
                 from code/renderer_oa/tr_flares.c:24:
/usr/lib/gcc/ppc64le-redhat-linux/10/include/mmintrin.h:52:2: error: #error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
   52 | #error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
      |  ^~~~~
In file included from code/renderer_oa/matrix_multiplication.h:5,
                 from code/renderer_oa/tr_sky.c:24:
/usr/lib/gcc/ppc64le-redhat-linux/10/include/xmmintrin.h:54:2: error: #error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
   54 | #error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
      |  ^~~~~
In file included from /usr/lib/gcc/ppc64le-redhat-linux/10/include/xmmintrin.h:79,
                 from code/renderer_oa/matrix_multiplication.h:5,
                 from code/renderer_oa/tr_sky.c:24:
/usr/lib/gcc/ppc64le-redhat-linux/10/include/mmintrin.h:52:2: error: #error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
   52 | #error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
      |  ^~~~~
In file included from code/renderergl1/matrix_multiplication.h:5,
                 from code/renderergl1/tr_main.c:25:
/usr/lib/gcc/ppc64le-redhat-linux/10/include/xmmintrin.h:54:2: error: #error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
   54 | #error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
      |  ^~~~~
In file included from /usr/lib/gcc/ppc64le-redhat-linux/10/include/xmmintrin.h:79,
                 from code/renderergl1/matrix_multiplication.h:5,
                 from code/renderergl1/tr_main.c:25:
/usr/lib/gcc/ppc64le-redhat-linux/10/include/mmintrin.h:52:2: error: #error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
   52 | #error "Please read comment above.  Use -DNO_WARN_X86_INTRINSICS to disable this error."
      |  ^~~~~
make[2]: *** [Makefile:2685: build/release-linux-ppc64le/renderer_oa/tr_flares.o] Error 1
make[2]: *** [Makefile:2685: build/release-linux-ppc64le/renderer_oa/tr_main.o] Error 1
make[2]: *** [Makefile:2685: build/release-linux-ppc64le/renderer_oa/tr_sky.o] Error 1
make[2]: *** [Makefile:2701: build/release-linux-ppc64le/renderergl1/tr_main.o] Error 1
/usr/bin/ld: build/release-linux-ppc64le/client/cl_cgame.o: in function `CL_CgameSystemCalls':
cl_cgame.c:(.text+0x1e88): undefined reference to `qsnapvectorsse'
/usr/bin/ld: build/release-linux-ppc64le/client/sv_game.o: in function `SV_GameSystemCalls':
sv_game.c:(.text+0x3964): undefined reference to `qsnapvectorsse'
collect2: error: ld returned 1 exit status
make[2]: *** [Makefile:2051: build/release-linux-ppc64le/openarena.ppc64le] Error 1
code/renderergl1/tr_image_png.c: In function ‘ReadBufferedFile’:
code/renderergl1/tr_image_png.c:255:36: warning: passing argument 2 of ‘ri.FS_ReadFile’ from incompatible pointer type [-Wincompatible-pointer-types]
  255 |  BF->Length = ri.FS_ReadFile(name, &buffer);
      |                                    ^~~~~~~
      |                                    |
      |                                    char **
code/renderergl1/tr_image_png.c:255:36: note: expected ‘void **’ but argument is of type ‘char **’
code/renderergl1/tr_model.c: In function ‘R_RegisterMD3’:
code/renderergl1/tr_model.c:66:28: warning: passing argument 2 of ‘ri.FS_ReadFile’ from incompatible pointer type [-Wincompatible-pointer-types]
   66 |   ri.FS_ReadFile( namebuf, &buf );
      |                            ^~~~
      |                            |
      |                            char **
code/renderergl1/tr_model.c:66:28: note: expected ‘void **’ but argument is of type ‘char **’
code/renderergl1/tr_model.c: In function ‘R_RegisterMDR’:
code/renderergl1/tr_model.c:123:38: warning: passing argument 2 of ‘ri.FS_ReadFile’ from incompatible pointer type [-Wincompatible-pointer-types]
  123 |  int filesize = ri.FS_ReadFile(name, &buf);
      |                                      ^~~~
      |                                      |
      |                                      char **
code/renderergl1/tr_model.c:123:38: note: expected ‘void **’ but argument is of type ‘char **’
code/renderergl1/tr_model.c: In function ‘R_RegisterIQM’:
code/renderergl1/tr_model.c:165:34: warning: passing argument 2 of ‘ri.FS_ReadFile’ from incompatible pointer type [-Wincompatible-pointer-types]
  165 |  filesize = ri.FS_ReadFile(name, &buf);
      |                                  ^~~~
      |                                  |
      |                                  char **
code/renderergl1/tr_model.c:165:34: note: expected ‘void **’ but argument is of type ‘char **’
code/renderergl1/tr_model.c: In function ‘RE_RegisterModel’:
code/renderergl1/tr_model.c:349:46: warning: ‘snprintf’ output may be truncated before the last format character [-Wformat-truncation=]
  349 |   snprintf( altName, sizeof (altName), "%s.%s", localName, modelLoaders[ i ].ext );
      |                                              ^
code/renderergl1/tr_model.c:349:3: note: ‘snprintf’ output 2 or more bytes (assuming 65) into a destination of size 64
  349 |   snprintf( altName, sizeof (altName), "%s.%s", localName, modelLoaders[ i ].ext );
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
code/renderergl1/tr_init.c: In function ‘GLimp_InitExtensions’:
code/renderergl1/tr_init.c:328:41: warning: ‘%d’ directive writing between 1 and 10 bytes into a region of size 4 [-Wformat-overflow=]
  328 |                 sprintf(target_string, "%d", maxAnisotropy);
      |                                         ^~
code/renderergl1/tr_init.c:328:40: note: directive argument in the range [1, 2147483647]
  328 |                 sprintf(target_string, "%d", maxAnisotropy);
      |                                        ^~~~
code/renderergl1/tr_init.c:328:17: note: ‘sprintf’ output between 2 and 11 bytes into a destination of size 4
  328 |                 sprintf(target_string, "%d", maxAnisotropy);
      |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
code/renderergl1/tr_shader.c: In function ‘ScanAndLoadShaderFiles’:
code/renderergl1/tr_shader.c:2872:39: warning: passing argument 2 of ‘ri.FS_ReadFile’ from incompatible pointer type [-Wincompatible-pointer-types]
 2872 |   summand = ri.FS_ReadFile( filename, &buffers[i] );
      |                                       ^~~~~~~~~~~
      |                                       |
      |                                       char **
code/renderergl1/tr_shader.c:2872:39: note: expected ‘void **’ but argument is of type ‘char **’
make[2]: Leaving directory '/home/tle/src/vkOpenArena'
make[1]: *** [Makefile:1078: targets] Error 2
make[1]: Leaving directory '/home/tle/src/vkOpenArena'
make: *** [Makefile:998: release] Error 2

cc @suijingfeng any help is greatly appreciated

same named shader cause problems, because the hash table data structure

one:

textures/liquids/slime1
{
	qer_editorimage textures/liquids/slime8.jpg
	q3map_lightimage textures/liquids/slime8.jpg
	surfaceparm noimpact
	surfaceparm slime
	surfaceparm nolightmap
	surfaceparm trans
	q3map_surfacelight 150
	deformVertexes wave 64 sin .25 .25 0 .5	
	{
		map textures/liquids/slime8.jpg
		tcmod turb .05 -0.5 0 0.02
		tcmod scroll .05 -.01
	}
	{
		map textures/liquids/slime8.jpg
		blendfunc filter
		tcmod turb .012 -0.1 0 0.04
		tcmod scroll .003 -.008
	}
}

another shader which is come from pillcity.pk3/liquids.shader:

textures/liquids/slime1
{
		qer_editorimage textures/liquids/slime7.tga
		q3map_lightimage textures/liquids/slime7.tga
		q3map_globaltexture
		qer_trans .5

		surfaceparm noimpact
		surfaceparm slime
		surfaceparm nolightmap
		surfaceparm trans		

		q3map_surfacelight 100
		tessSize 32
		cull disable

		deformVertexes wave 100 sin 0 1 .5 .5

		{
			map textures/liquids/slime7c.tga
			tcMod turb .3 .2 1 .05
			tcMod scroll .01 .01
		}
	
		{
			map textures/liquids/slime7.tga
			blendfunc GL_ONE GL_ONE
			tcMod turb .2 .1 1 .05
			tcMod scale .5 .5
			tcMod scroll .01 .01
		}

		{
			map textures/liquids/bubbles.tga
			blendfunc GL_ZERO GL_SRC_COLOR
			tcMod turb .2 .1 .1 .2
			tcMod scale .05 .05
			tcMod scroll .001 .001
		}
}

pxlmap map 's sky render error

R_FindImageFile: Fail loading env/xnight2_rt.tga the from disk
R_FindImageFile: Fail loading env/xnight2_bk.tga the from disk
R_FindImageFile: Fail loading env/xnight2_lf.tga the from disk
R_FindImageFile: Fail loading env/xnight2_ft.tga the from disk
R_FindImageFile: Fail loading env/xnight2_up.tga the from disk
R_FindImageFile: Fail loading env/xnight2_dn.tga the from disk
stitched 0 LoD cracks
...loaded 1414 faces, 268 meshes, 1 trisurfs, 42 flares

---R_LoadMarksurfaces---

---R_LoadNodesAndLeafs---

---R_LoadSubmodels---

---R_LoadVisibility---

---R_LoadEntities---

---R_LoadLightGrid---

R_FindImageFile: Fail loading playeroverlays/playerSuit1_Neutral the from disk
R_FindImageFile: Fail loading models/weaphits/kamikred the from disk
R_FindImageFile: Fail loading poopypants the from disk
Ugly shader name: C:\projects\oa\newplasrailhit\Sphere
R_FindImageFile: Fail loading rocketFlare_001 the from disk
Ugly shader name: C:\projects\oa\newtele\Circle
R_FindImageFile: Fail loading teleporterEffect the from disk
WARNING: reused image textures/flares/lava.tga with mixed glWrapClampMode parm
R_RegisterMD3: failed loading models/powerups/trailtest.md3 from disk.
R_RegisterMD3: couldn't load models/powerups/trailtest.md3
R_RegisterMD3: failed loading models/powerups/regen.md3 from disk.
R_RegisterMD3: couldn't load models/powerups/regen.md3
R_FindImageFile: Fail loading ui/assets/statusbar/selectedhealth.tga the from disk
R_RegisterMD3: failed loading models/powerups/armor/shard_sphere.md3 from disk.
R_RegisterMD3: couldn't load models/powerups/armor/shard_sphere.md3
R_RegisterMD3: failed loading models/weapons2/gauntlet/gauntlet_flash.md3 from disk.
R_RegisterMD3: couldn't load models/weapons2/gauntlet/gauntlet_flash.md3
R_RegisterMD3: failed loading models/weapons2/gauntlet/gauntlet_hand.md3 from disk.
R_RegisterMD3: couldn't load models/weapons2/gauntlet/gauntlet_hand.md3
R_RegisterMD3: failed loading models/weapons2/shotgun/shotgun_barrel.md3 from disk.
R_RegisterMD3: couldn't load models/weapons2/shotgun/shotgun_barrel.md3
WARNING: reused image icons/iconw_rocket.tga with mixed mipmap parm
WARNING: reused image icons/iconw_rocket.tga with mixed glWrapClampMode parm
R_RegisterMD3: failed loading models/weapons2/rocketl/rocketl_barrel.md3 from disk.
R_RegisterMD3: couldn't load models/weapons2/rocketl/rocketl_barrel.md3
WARNING: reused image icons/iconw_lightning.tga with mixed mipmap parm
WARNING: reused image icons/iconw_lightning.tga with mixed glWrapClampMode parm
R_RegisterMD3: failed loading models/weapons2/lightning/lightning_barrel.md3 from disk.
R_RegisterMD3: couldn't load models/weapons2/lightning/lightning_barrel.md3
R_RegisterMD3: failed loading models/weapons2/lightning/lightning_hand.md3 from disk.
R_RegisterMD3: couldn't load models/weapons2/lightning/lightning_hand.md3
WARNING: reused image textures/flares/flarey.tga with mixed glWrapClampMode parm
R_RegisterMD3: failed loading models/weapons2/plasma/plasma_barrel.md3 from disk.
R_RegisterMD3: couldn't load models/weapons2/plasma/plasma_barrel.md3
R_RegisterMD3: failed loading models/weapons2/plasma/plasma_hand.md3 from disk.
R_RegisterMD3: couldn't load models/weapons2/plasma/plasma_hand.md3
Unsupported image extension: \projects\oatony\Material.010
R_FindImageFile: Fail loading \projects\oatony\Material.010 the from disk
R_FindImageFile: Fail loading Material the from disk
WARNING: Failed to open sound music/OA11.ogg!

VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT

ERROR: Validation  [ VUID-vkFreeDescriptorSets-descriptorPool-00312 ] Object: 0x15 (Type = 22) | 
It is invalid to call vkFreeDescriptorSets() with a pool created without setting VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT. 
The Vulkan spec states: descriptorPool must have been created with the VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT flag 
(https://www.khronos.org/registry/vulkan/specs/1.1-extensions/html/vkspec.html#VUID-vkFreeDescriptorSets-descriptorPool-00312)

ERROR: Validation [ UNASSIGNED-CoreValidation-DrawState-InvalidImageLayout ] Object: 0x3185cf0 (Type = 6) |
Submitted command buffer expects image 0x90 (subresource: aspectMask 0x1 array layer 0, mip level 0) to be in layout VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL, instead, current layout is VK_IMAGE_LAYOUT_PREINITIALIZED.

vk rpi driver - vkOpenArena

this is not a problem as such, just curious: could this driver be used with vkopenarena?
https://github.com/Yours3lf/rpi-vk-driver

about UI shader flare, can not find how the flare take effects

//REALLY COOL MENU BACKGROUNDY
menubacknologo_blueish
{
{
map gfx/fx/detail/d_sand.tga
rgbGen const ( 0.627451 0.666667 0.796079 )
tcMod scroll 0.1 0.1
}
{
map gfx/fx/detail/d_sand.tga
blendfunc gl_dst_color gl_src_color
rgbGen const ( 0.247059 0.803922 0.721569 )
tcMod scroll -0.04 0.1
tcMod scale -1.1 0.8
}
{
map gfx/fx/detail/d_ice.tga
blendfunc gl_dst_color gl_src_color
tcMod scale 2 2
}
{
map $whiteimage
blendfunc filter
rgbGen const ( 0.121569 0.12549 0.152941 )
tcMod scale 0.5 1
}
}

//REALLY COOL MENU BACKGROUNDY
menuback_blueish
{
{
map gfx/fx/detail/d_sand.tga
rgbGen const ( 0.627451 0.666667 0.796079 )
tcMod scroll 0.1 0.1
}
{
map gfx/fx/detail/d_sand.tga
blendfunc gl_dst_color gl_src_color
rgbGen const ( 0.247059 0.803922 0.721569 )
tcMod scroll -0.04 0.1
tcMod scale -1.1 0.8
}
{
map gfx/fx/detail/d_ice.tga
blendfunc gl_dst_color gl_src_color
tcMod scale 2 2
}
{
map textures/sfx/logo256.tga
blendfunc filter
tcMod scale 0.5 1
}
}