Thank you for reporting this issue to us. If it is not asking too much, can you add the issue details using the table format as detailed here: IMPORTANT - Default level information for reporting Graphics issues
Once we have this info I'll report it directly to our development team.
Thank You, Ronald.
Answers (N/A if not applicable)
Provide a detailed description of the issue
Intel's Vulkan driver ignores minDepth and maxDepth fields in VkViewport structure, always defaults to minDepth=0.0f and maxDepth=1.0f disallowing to use a reverse-z technique
Please place an X to the right of the option showing how often you see this issue using specific steps. (Ex: 'Every few times a game is started it flickers.' <- This would be "Often")
Always (100%): X
Very Sporadic (<20%):
Brand and Model of the system.
Custom built desktop PC
Hybrid or switchable graphics system?
ie Does it have AMD or NV graphics too?
PC also has GeForce GTX 960 in PCI Express slot, monitor cable connected to Intel HD 530 (i7 6700k)
Make and model of any Displays that are used to see the issue (see note2 below).
LFP = Local Flat Panel (Laptop panel)
EFP = External Flat Panel (Monitor you plug in)
Tested on 3 monitors:
ASUS MX239H EFP
SAMSUNG 743BM EFP
SAMSUNG 797MB EFP
but the issue can be observed on any display
How much memory [RAM] in the system (see note2 below).
Provide any other hardware needed to replicate the issue.
ie: Cables&brand, cable type [vga, hdmi, DP, etc], dock, dongles/adapters, etc
Hardware Stepping (see note1 below).
Operating System version (see note2 below).
Windows 10 AU x64 and Windows 7 x64
VBIOS (video BIOS) version. This can be found in “information page” of CUI (right click on Desktop and select “Graphics Properties”.
Graphics Driver version; for both integrated Intel and 3rd party vendors (see note2 below).
Intel: 22.214.171.12478 (15.45, tested on Windows 7 x64) and 126.96.36.19929 (15.46, tested on Windows 10 AU x64)
NVIDIA: 384.94 on Windows 7 x64, 382.05 on Windows 10 AU x64
SW or Apps version used to replicate the issue.
Vulkan SDK 1.0.51, custom built app
Single display, clone, or extended (see note2 below).
Display resolution & refresh rate setting of each display (see note2 below).
ASUS MX239H: 1920x1080@60
SAMSUNG 743BM: 1280x1024@60
SAMSUNG 797MB: 1024x768@100
AC or DC mode, i.e. is power cable plugged in or not?
How to repro
Please provide steps to replicate the issue. These steps are very crucial to finding the root cause and fix.
A screenshot to illustrate the issue is a huge plus. A video of the failure is even better! Attach to the post or provide the YouTube link.
- set minDepth=1.0f and maxDepth=0.0f in VkViewport
- clear depth buffer to 0.0f or render a triangle with depth=0.0f
- notice depth buffer isn't calculated in reverse
1 of 1 people found this helpful
I apologize for not replying sooner, I try to stay away from the "we're working on it" kind of updates.
With the information you provided, I filed internal bug ID 1406462374, and our devs were able to reproduce the issue.
Today I was informed that we have a fix checked-in, so please look forward to our next 15.46 and higher driver releases.
Thank you for taking the time to report this issue to us.
I installed the latest update that has been released yesterday (15.47.02.4815 (188.8.131.5215)) but I see no changes whatsoever.
Could you please check if the fix has been included in the mentioned update?
With viewport.minDepth=1.0f and viewport.maxDepth=0.0f, depth that should be written for a triangle with depth=0.95f is 0.05f, not 0.95f.
I use VK_FORMAT_D32_SFLOAT_S8_UINT format.
I got confirmation from my dev that this fix is going to be included in the upcoming 15.60 driver baseline, which should be coming out sooner rather than later. Unfortunately I cannot provide any ETA since release dates can shift at any time.
As I have more information I'll post it here.
Hi Ronald_Intel, Xavier told me i should asking help in this thread. Yups and i have the same issue, after installation 184.108.40.20649 driver, Vulkan reports 1.0.0 version API. All programs that check level support of API says that Vulkan driver is 1.0.0 instead 1.0.61, even Intel HD Graphics Control Panel reports 1.0.0. I tried everything, nothing helps. All system scans, you can take from this thread.
Hello Fred! Just quick update. You probably have noticed, some Intel driver files different and wonder why. That's because first time i installed driver 11/11/2017, found that Vulkan broken, then downloaded and installed driver again - nothing change. Today i decided check MD5 and found that it different. Driver zip package was updated when Bryce made official post 14/11/2017. Old zip 4849 MD5 - 081FA73B48D6F4B6A1F1DE5F0540D2E2, new zip 4849 MD5 30EBDB2ADD1D8778F180A544522B842E. Difference between driver package.
Installation_Readme.txt says only difference is Intel(R) Display Audio Driver: 10.00.00.1 (old) and Intel(R) Display Audio Driver: 10.24.00.01 (new) So, in the world now exist two driver package and it can be very confusing. After installing new driver nothing change. I attached new scans files, just in case..
This message was posted on behalf of Intel Corporation
I believe we are targeting for a new 15.60 release in the next couple of weeks, so I would suggest checking our site and let us know once this driver is available if it has any issue. I tried here internally and so far it looks good, no conflicts in the versioning.
Can you check how many different Vulkan packages you have installed under "Programs and features"? This can help me compare with my systems here just in case I'm missing something.