Failed ETC2 Compression

Hi!

I'm getting an issue where Unity is unable to compress textures if the compression method is ETC or ETC2. When I import or reimport the asset, I get the error message "Failed ETC2 compression" in the console (with no other details) and the imported graphic ends up with black and white glitchy sections across it.

I'm using the 5.3.3f1+20160223_amd64 build on Linux Mint 17.1 Cinnamon 64-bit.

 

I am also running into this issue. My project type is set to Android and compression fails for both ETC and ETC2. When that happens, textures appear glitchy in both the editor and in the built project on Android, with gray stripes across them in random places, depending on the proximity to the camera. The texture errors appear on all objects, including assets from the store and brand-new GameObjects with simple image textures applied.

By setting the texture compression type to "ATC (Adreno)" in the Build Settings, I can get textures to compress and display properly, including on the target phone.

Build: 5.3.3f1+20160223_amd64
OS: Linux Mint 17.1 Cinnamon 64-bit
Kernel: 3.13.0-37-generic

 

I can confirm that it also happens on 5.3.4f1+20160316_amd64. The ATC compression workaround still works, as does disabling compression (using "16 bits" or "Truecolor") in the texture import settings pane (though obviously that will increase texture sizes dramtically).

 

Thanks, we'll investigate.

 

Same here with Unity 5.4.0b10. Just tried to switch platform to Android.
Part of editor.log:

 

Also seeing this problem... If I set all graphics to 16 bits, it doesn't glitch, but I am still getting the Failed ETC1 and Failed ETC2 compression errors.

 

I'm seeing exactly the same issue on my Arch Linux machine on Unity 5.3.3f1.

Our texture sizes are enormous which is causing some serious problems.

 

I got the same problem, but I solve the problem by install the
Microsoft Visual C++ 2010
https://www.microsoft.com/zh-tw/download/details.aspx?id=5555

Maybe your computer loss the vcomp100.dll

Finally, you need to reimport your asset and texure.

 

That's hardly relevant to Linux builds.

 

Same here on Ubuntu 15.10. Tried Unity versions 5.3.2, 5.3.3, 5.4.0.
Devs, any news on this issue? It has been a month since first reported.

 

I'm running into this with 5.4.0b15 (on Archlinux). This used to work for me but I'm not sure with which version. Anyways, it looks like PVRTexTool is crashing, here are a bunch of core dumps:

https://drive.google.com/open?id=0B6ae4MQpLVf6T3UzVXNfX0Q1MWc

 

Also getting this error.

 

I am also getting this error on Linux Ubuntu 14.04 LTS

 

On Ubuntu 16.04 i have the problem...

 

Failed ETC1 / ETC2 compression

Unity Editor v5.4.0p1+20160810_amd64
Android Platform

System: Ubuntu 16.04.1 LTS
Kernel: 4.4.0-31-generic
Processor: Intel® Core™ i5 CPU 650 @ 3.20GHz × 4
Memory: 16 GB
Graphics: Nvidia GeForce GTX 750 Ti/PCIe/SSE2 (2048 MB)
OpenGL: OpenGL 4.5 [4.5.0 NVIDIA 361.42]

The editor divides the import file into small parts and it seems that running an import process for each CPU core.
It fails if these processes do not end in the same order in which they were executed.
It seems not well managed multiple processes.

Using the original PVRTexTool sometimes there are zombie child process.

The Solution

A small program that involves the PVRTexTool.
Synchronize threads based on the system time (multiples of 750 milliseconds or if preferred in a second for safety).

It is a temporary while the bug is fixed.
It is a simple without access to the source code editor.
It is a bit slower.

Build. Android Texture compression: Don't override.
In other cases fails.

It is NOT A SOLUTION. Try to shed some light.

Correct me for my style of programming and for my bad English !!!

Off Topic:
Controlling or waiting external processes can be the source of other errors? for example "Blender .blend Could not convert the file to FBX file."

It is a bit slower but it works in most situations.
Work with multiple files.

Assets Menu or Context Menu: Reimport or Reimport All.
Assets Menu -> Import New Asset...
Copy file to project folder.

Code (Golang):

1.  
2. /*
3.  
4.    This program is free software: you can redistribute it and/or modify
5.    it under the terms of the GNU General Public License as published by
6.    the Free Software Foundation, either version 3 of the License, or
7.    (at your option) any later version.
8.  
9.    This program is distributed in the hope that it will be useful,
10.    but WITHOUT ANY WARRANTY; without even the implied warranty of
11.    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12.    GNU General Public License for more details.
13.  
14.    You should have received a copy of the GNU General Public License
15.    along with this program.  If not, see <http://www.gnu.org/licenses/>.
16.  
17. */
18.  
19. package main
20.  
21. import (
22.     "bytes"
23.     "fmt"
24.     "os"
25.     "os/exec"
26.     "path/filepath"
27.     "strings"
28.     "time"
29. )
30.  
31. const (
32.     // Total time taken for a process. For safer, but more slow, use a sync
33.     // time of one second (1000 * time.Millisecond or time.Second)
34.     totalTime = 750 * time.Millisecond
35.  
36.     // Full path of PVRTexTool command file
37.     cmdPVRTexTool = "/opt/Unity/Editor/Data/Tools/PVRTexToolCLI"
38.  
39.     // TODO: Get pattern from input file?
40.     // Supported Image Formats: PVRTexTool -- Must be a JPEG, PNG, BMP, PVR, KTX, DDS or ASTC file.
41.     feedPattern = "*-feed.png"
42.  
43.     timeFormat = "2006-01-02 15:04:05.999 -0700 MST" // format a time stamp with millisecond precision
44.     debug      = false
45. )
46.  
47. var (
48.     start = time.Now()  // start time
49.     pid   = os.Getpid() // process id
50. )
51.  
52. func main() {
53.  
54.     // command line arguments
55.     cmdName := os.Args[0]
56.     cmdArgs := os.Args[1:]
57.  
58.     if debug {
59.         fmt.Fprintf(os.Stderr, "wrapper %d: start %s command %s %s\n", pid, start.Format(timeFormat), cmdName, strings.Join(cmdArgs, " "))
60.         os.Stderr.Sync()
61.     }
62.  
63.     // execute command
64.     var stdout, stderr bytes.Buffer // pipes for reading the generated outputs
65.  
66.     cmd := exec.Command(cmdPVRTexTool, cmdArgs...)
67.     cmd.Stdout = &stdout
68.     cmd.Stderr = &stderr // Original PVRTexTool only use stderr
69.  
70.     if err := cmd.Run(); err != nil {
71.         if debug {
72.             fmt.Fprintf(os.Stderr, "wrapper %d: error exec command: %s\n", pid, err)
73.         }
74.     }
75.  
76.     if debug {
77.         fmt.Fprintf(os.Stderr, "wrapper %d: comand stderr: [\n%s]\n", pid, stderr.String())
78.         os.Stderr.Sync()
79.     } else {
80.         fmt.Fprint(os.Stderr, stderr.String())
81.         os.Stderr.Sync()
82.     }
83.  
84.     // end process
85.     end := time.Now().Sub(start)
86.  
87.     // args
88.     var path string
89.  
90. loop:
91.     for i, arg := range cmdArgs {
92.         switch arg {
93.         case "-i": // input file
94.             path = filepath.Dir(cmdArgs[i+1])
95.             break loop
96.         }
97.     }
98.  
99.     fs, err := filepath.Glob(filepath.Join(path, feedPattern))
100.     if err != nil {
101.         fmt.Fprintf(os.Stderr, "wrapper %d: error counting png files in %s: %s\n", pid, path, err)
102.         os.Stderr.Sync()
103.     }
104.  
105.     feeds := len(fs)
106.  
107.     if debug {
108.         // calculate approximately
109.         base := start.Round(totalTime)
110.         now := time.Now()
111.         delay := totalTime - now.Sub(base)
112.         sync := now.Add(delay)
113.  
114.         fmt.Fprintf(os.Stderr, "wrapper %d: end %s, process %s, delay %s, sync time %s, feeds %d\n", pid, now.Format(timeFormat), end, delay, sync.Format(timeFormat), feeds)
115.         os.Stderr.Sync()
116.     }
117.  
118.     // process synchronization
119.     if feeds > 1 {
120.         delay := totalTime - time.Now().Sub(start.Round(totalTime))
121.  
122.         if delay > 0 {
123.             time.Sleep(delay) // wait
124.         }
125.     }
126. }
127.  
128. // end PVRTexTool.go
129.  

 

Hello.

Unity Editor v5.4.0p1+20160810_amd64
Android platform
Importing textures or building.
Texture Glitch

Failed ETC1/ETC2 compression

In my system, with a clean installation of the editor, uses 4 processes to import. After building, import or new build, uses 6 process and some of them fail.

if anyone is interested I have one PVRTexTool ipc based wrapper.
Wrapper works for me.
After starting the editor, import texture or build, ALWAYS it works. Without errors.
From that moment, import texture or build, always fails.
Restart the editor working again.

I hope this is the right place to report this issue.

Thanks

 

I believe we'll have a fix for this issue in the next build.

 

Great! Thanks.

 

Hello.

Same error for v5.5.0b1+20160830_amd64

Android platform.
Importing textures or building.
Texture Glitch.

Failed ETC1/ETC2 compression

 

Sorry, beta1 was already cut when that fix landed - but it should be in the next build!

 

Thanks!

 

Fixed in 5.5.0b2.

 

It works only on reload one texture,
reloading multiple Crash,
Reload All Freeze,
Build on Android Crash,
Switch to Android Crash

5.5.0b2 its a lot unstable

 

Yeah, there's still something wrong with this. Now it just hangs while reimporting all the assets and I need to kill the editor. For some reason it didn't happen the first few times I tried, and I got it to build for Android once without crashing.

 

Google has released an open source etc2 compressor that works on linux, os x and windows. Maybe it should help.
link: https://medium.com/@duhroach/building-a-blazing-fast-etc2-compressor-307f3e9aad99#.ed827hjpu

 

Just to report this bug also happens on Debian 8 (using 5.4.1f1 on a 64bit machine). Changing to ATC (Adreno) solves in the editor. Didn't try on device.

 

@Bollit thanks, you are lifesaver!
Unity is almost unusable as I start to use standard assets because of this bug. Version is 5.4.0p1. Version 5.4.1f1 cannot build a project at all.
I almost regret that I started with Unity, maybe I had to choose UE

 

Hi!
Happy to help a little.

5.5.0b5 is better in this regard.
Sometimes the error occurs in 5.5.0b5, but not how to play it.
Sporadic hangs with compression ETC.

Stop zombie child process can continue without restarting the editor.
With the System Monitor, or shell, delete the child process 'Unity'.
In System Monitor view active 'Dependencies'.



Remember that it is not a solution.

Unity in linux is experimental but progressing.
Fixed in the next release?

Look at your skills.

 

How to overcome this ? Even i am having the same issue in unity 5.6.0

 

Same issue in 2017.1p3 Android, when upgraded pretty simple project from 5.6.2p4. Change to DXT Build Settings and Reimport All fixes it for me. Or manually override compression settings for Android for each texture to DXT or disable sRGB.

How this stuff passes Unity's "quality control" is beyond me.

 

Still getting this in Android builds using 2018.2.10!

 

Three years later and no official fix? :/

 

I seem to be having this issue in the Linux Editor 2018.3.12f1. Looking closer at it it seems to be on textures where the original size is non-power of two, even if it's set to resize to POT in advanced options. The ETC crunched seem to work...but the non-crunched ETC does throw the error. This problem happens only on Linux and not my Mac...

So if you are having this issue it might be worth checking this...

 

We are having same issue in the Linux Editor Unity 2019.1.0...

 

Also occasionally getting the "Failed ETC1 compression issue"
Unity 2019.1.0f2 on Ubuntu 18.04

 

getting the "Failed ETC1 compression issue"
somem textures of NPOT type,
reimporting 3-5 times solves, I wished to know how to overcome this issue
Unity 2019.1.14f1 on Ubuntu 18.04

 

I confirm the "Failed ETC1(or ETC2) compression" error at Unity 2019.1.14f1 on Linux.
This error appear when I builded Android app. And when I played this app on device, textures appear glitchy with gray stripes across them.
I tried to clear Library/ folder and rebuild, but It's still appear.

 

Whenever I get that error it is with new textures (sprite2d in my case) and enabling Crunch Compression for each texture solves problem.

 

Facing same issue, working fine in windows machine and in Mac its giving "Failed ETC2 compression", tried to use every solution provided by everyone in above replies but none worked,

only some of the sprite are affected even though all have same compression setting, recently started facing this issue since I upgraded my unity.

also facing issue in android devices only in editor its working fine.

Unity version : 2018.4.1f1

 

Also have "Failed ETC1(or ETC2) compression" error on Arch Linux at Unity 2019.1 and 2019.2 during android build. After successful build some textures are glitchy.

 

I also have the "Failed ETC2 compression" issue with Ubuntu 18.04 LTS and Unity 2019.2.9.

 

@Tautvydas-Zilys : I just submitted case #1222219 which is a small, simple project which exhibits this bug. In the bug report are a simple set of steps to repro the error on demand so that you can easily debug it. This project was submitted from Unity 2019.3.1f1, where the problem is still present unfortunately.

This bug makes it unrealistic to use Linux editor for our Android projects at the moment, both VR and mobile, so fixing this would be a gigantic boon to productivity over here! I hope it can get the priority that it deserves.

if we can provide any more info to help fix the problem please let us know.

 

I heard back from QA that they've been able to reproduce the issue - yay! https://issuetracker.unity3d.com/is...tc2-compression-fails-when-importing-textures.

 

Great to hear! Any more news on this, just had it popup in one of my projects?

 

Yes, actually. QA reached out today to let me know they're still working on it *BUT* we can try this workaround for now: change "ETC Texture Compressor" in Project Settings->Editor from Legacy to Default.

This workaround does indeed seem to work for me so far. Give it a try.

 

So It seems like it made the errors go away. but I had some artifacts ingame, made a cloud build and that came out fine

 

Error codes I can see here:
Failed ETC2 compression: Output file Temp/a9aa0a7bc947f95edb5f038bf04821b5-res.pvr not found
exitcode:0

Failed ETC1 compression: Output file Temp/02c0e3a68ea7d317fb9c9a5a0a3321e5-res.pvr not found
exitcode:0

Failed ETC2 compression: Failed to launch Tools/PVRTexTool
exitcode:1

Failed ETC1 compression: Failed to launch Tools/PVRTexTool
exitcode:1