Volume Visualization issue : can't bind texture

[jzy3d]

Describe the bug Running BasicVolumeDemo yield to

glGetError() returned the following error codes after a call to glBindTexture(<int> 0x806F, <int> 0x1): GL_INVALID_OPERATION ( 1282 0x502),

At Texture3D.bind()

Versions (please complete the following information):

• Jzy3D : 2.2.1-SNAPSHOT + JOGL 2.4.0-rc4
• JVM / JDK: any
• GPU: any
• OS: any
• Currently working on macOS 11+AppleM1, but issue reproduced on Windows 10, macOs 10.12

Additional context Reproduced

• Bug NOT happening on jzy3d 1.0.3, when @jacobfilik pushed it.
• Bug happening on jzy3d 2.0 (May 2021), 2.1, Surprising since it did not occur in December 2021 (https://github.com/jzy3d/jzy3d-api/issues/220)

[jzy3d]

Verified multiple things

• Compared source code between jacob push and current version : nothing visible
• Reverted fragment shader to non refactored version
• Shader programs are properly loaded
• Let shader compilation verification happen either at mount() time or draw() time
• Verified suggestions on GL_INVALID_OPERATION based on OpenGL spec
• Checked no call to anything else than TEXTURE_3D is made (GL_INVALID_OPERATION is generated if texture was previously created with a target that doesn't match that of target .)

Surprised by

• No glGenTextures before glBindTexture (but also in old version). It is probably implicitely made in fragment shader under name volumeTexture, and then fetched at validateTexID time in java.
• glBindTexture appears before glActiveTexture (but also in old version)