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Pyra OpenGL ES feature support?

Discussion in 'OpenGL ES and GLSL ES' started by Gremblo, Feb 12, 2018.

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  1. Gremblo

    Gremblo Hi, how was your day?

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    I'm currently staring a project that involves a voxel render.
    The current approach i'm trying is using a Geometry shader to generate the mesh on the gpu.
    What version opengl/opengl es will the Pyra support and will I be able to use Geometry and tessellation shaders?
    I'm wanting to know if my project will be easily portable to the Pyra when I get my hands one one!
    If not what would be the best way to implement a fast voxel renderer on the Pyra?
     
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  2. ptitSeb

    ptitSeb Serial Porter

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    No Geometry or Tesselation shaders on Pyra.
     
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  3. Gremblo

    Gremblo Hi, how was your day?

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    Thanks for the quick response:D
    --- Double Post Merged, Feb 12, 2018, Original Post Date: Feb 12, 2018 ---
    1. What about 3d textures?

    acording to this page (at the bottom) opengl es 3.0 supports it.
    https://www.khronos.org/registry/OpenGL-Refpages/es3.0/html/glTexImage3D.xhtml

    2. What opengl es version will the Pyra support?
     
  4. ptitSeb

    ptitSeb Serial Porter

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    Pyra will support only GLES 1.1 and GLES 2.0, so no 3D Textures...

    (I do have plan to add support for 3D texture in gl4es, but I'm not there yet....).

    I wonder what use of 3DTextures you have?
     
    _jr_, Gremblo and levi like this.
  5. Gremblo

    Gremblo Hi, how was your day?

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    I'm playing around & trying to make a voxel rendered and one approach I saw for high quantity voxel rendering involves using 3d textures!

    That and I wanted to play with volumetric clouds
     
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  6. Gremblo

    Gremblo Hi, how was your day?

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    If I was to use a web browser like chrome or firefox on the Pyra with a page that had WebGL would that work?
    I am asking because WebGL is derived from OpenGL ES 2.
     
  7. ptitSeb

    ptitSeb Serial Porter

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    it should yes, as long as the driver as X11 support.
     
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