Error message spam on console when creating a new Terrain3D node with opengl (not angle)

[Gnumaru]

Terrain3D version

v1.0.1

System information

Godot v4.6.stable - Windows 10 (build 19044) - Multi-window, 2 monitors - OpenGL 3 (Compatibility) - NVIDIA GeForce GTX 1060 6GB (NVIDIA; 32.0.15.8180) - Intel(R) Xeon(R) CPU E5-2680 v4 @ 2.40GHz (28 threads) - 31.84 GiB memory

Is the issue reproducable in the demo?

Not applicable

Issue description

When using opengl (not angle), when I create a new Terrain3D node, the console spams continuously the message bellow

ERROR: GL ERROR: Source: OpenGL Type: Error     ID: 1282        Severity: High  Message: GL_INVALID_OPERATION error generated. Target doesn't match the texture's target.
   at: _gl_debug_print (drivers/gles3/rasterizer_gles3.cpp:194)

the error only goes away when I set the data_directory property to "res://demo/assets/" and the assets property to "res://demo/data/assets.tres".

but when using vulkan or d3d12 that message is never spammed in the console, even for a newly created Terrain3D node, with the "data_directory" property empty and the "assets" property set to the default value.

Logs

No response

[TokisanGames]

Please test a nightly build of main. If you still have the message with those versions, show the full console output from the beginning. Only cut repeating messages.

[Gnumaru]

In the future I'll refrain from reporting an issue without first testing the latest automatic pull build.

I tested the latest build from here and the issue is solved.

I'm sorry for the trouble.

[TokisanGames]

Please re-read the nightly builds doc and use a build from main only. That one is an unstable development build.

[Gnumaru]

please excuse me, I was unfamiliar with the project docs and this was my first time using a github pull build. Now I've tested with this one and the problem remains fixed. Thanks for pointing out I was testing an unstable build.

[Gnumaru]

BUT WAIT! I claimed victory too early. the bug still persists. Without noticing I tested with opengl AND angle, in this situation the error message does not spam. But if I test in with opengl with angle (as stated in the issue title), then the message spams again. even in the latest (correct) nightly build.

Here's a log I made with godot_console.exe --verbose --editor --rendering-driver opengl3 --terrain3d-debug=EXTREME > out.log 2>&1

out.zip

I edited the log file to remove all but one instance of the message mentioned in the original issue. the lines where there should be a repetition of the same error message are now only empty lines (with a line break character).

Ps.: it makes some sense that the message appears only when not using angle, since on windows opengl3 angle uses D3D11 under the hood, and the error message seems really tied to opengl only.

[TokisanGames]

This log is using opengl native, not angle.

I changed 4.6 to Compatibility mode and tested both opengl3 native and opengl3_angle, with the demo scene and creating a new scene. Both work fine without any errors.

Your GPU driver is almost a year old. Upgrade it.

[Gnumaru]

I have access to more than one machines.

The one I oppenned the issue with uses the nvidia driver 581.80, wich is only almost three months old. When I did the last attached log file I was using another machine with an older driver, but the problem happens in both of them.

I have just updated the nvidia graphics driver to the latest available (582.28) for the gpu I'm using in this machine:

Godot v4.6.stable - Windows 10 (build 19044) - Multi-window, 2 monitors - OpenGL 3 (Compatibility) - NVIDIA GeForce GTX 1050 Ti (NVIDIA; 32.0.15.8228) - Intel(R) Core(TM) i7-7700 CPU @ 3.60GHz (8 threads) - 15.93 GiB memory

This driver version was released on January 28, 2026 (yesterday). The error message persists in this machine. Here's the log.

i7out.zip

I've replaced all (except the first) instaces of the error message with an asterisk. whenever you see a line with only an asterisk, thats the same error message.

Edit:

I've tested in another machine, using intel integrated graphics (hd 630) and linux (zorin os 18), and the error message is the same

Here's the machine info:

Godot v4.6.stable - Zorin OS 18 18 on Wayland - X11 display driver, Multi-window, 1 monitor - OpenGL 3 (Compatibility) - Mesa Intel(R) HD Graphics 630 (KBL GT2) - Intel(R) Core(TM) i5-7500 CPU @ 3.40GHz (4 threads) - 7.64 GiB memory

Here's the log

i5linout.zip

[TokisanGames]

Ok, I can reproduce it in 4.4.1, 4.5.1, 4.6
Start in compatibility mode. Create a new scene. Add Terrain3D. Get error spam:

\gd\bin\Godot_v4.5.1-stable_win64.exe --verbose --editor --rendering-driver opengl3 --terrain3d-debug=DEBUG

ERROR: GL ERROR: Source: OpenGL Type: Error     ID: 1282        Severity: High  Message: GL_INVALID_OPERATION error generated. Target doesn't match the texture's target.
   at: _gl_debug_print (drivers/gles3/rasterizer_gles3.cpp:189)

The code mentioned is here in 4.5.1

To stop the error you must have at least one region and one texture.
It doesn't like having empty texture arrays and maybe other variables. Perhaps we can add dummies.