Forums - OpenGL GL_MAX_3D_TEXTURE_SIZE constant

2 posts / 0 new
or Register
Last post
OpenGL GL_MAX_3D_TEXTURE_SIZE constant
reyn.vlietstra
Join Date: 10 Oct 17
Posts: 2
Posted: Tue, 2022-08-02 06:38
Top

Hi!

We have some c++ on android that creates a 3d texture via glTexImage3D.

According to the "Qualcomm Adreno OpenGL ES Developer Guide" I should be getting 16384 for the GL_MAX_3D_TEXTURE_SIZE constant for OpenGL 3.1 (page 97).

On my OnePlus 5, which is an Adreno 540 device, 2048 is returned by glGetIntegerv(GL_MAX_3D_TEXTURE_SIZE, ... )

Predictably if I try anything higher than 2048 for glTexImage3D I get GL_INVALID_VALUE (Which is the max defined for OpenGL 3.0 on page 73).

Could I be initializing OpenGl wrong ? Linking wrong ? (GLESv3)

My EGL returns version 1.5 

glGetString(GL_VERSION): OpenGL ES 3.2 [email protected] (GIT@6209c5d, Ifdcc64d6e8, 1576143393) (Date:12/12/19)

glGetString(GL_RENDERER): Adreno (TM) 540

Do phone manufacturers override the limit ? Should I be getting 16384 ? Is anyone else getting that on an Adren 420+

Please help
Thanks!
  • Up0
  • Down0
Re: OpenGL GL_MAX_3D_TEXTURE_SIZE constant
DuBo
Join Date: 9 Dec 13
Posts: 72
Posted: Wed, 2022-11-30 00:42
Top

Dear Customer

As confirmed, the document is wrong info, GPU driver defined 2048 for GL_MAX_3D_TEXTURE_SIZE, which is correct.

Thanks
Bob Du

  • Up0
  • Down0
or Register

Opinions expressed in the content posted here are the personal opinions of the original authors, and do not necessarily reflect those of Qualcomm Incorporated or its subsidiaries (“Qualcomm”). The content is provided for informational purposes only and is not meant to be an endorsement or representation by Qualcomm or any other party. This site may also provide links or references to non-Qualcomm sites and resources. Qualcomm makes no representations, warranties, or other commitments whatsoever about any non-Qualcomm sites or third-party resources that may be referenced, accessible from, or linked to this site.