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  1. Qt
  2. QTBUG-66365

Can't create RGB texture with QOpenGLTexture/Qt3D on OpenGL ES 2.0

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Details

    • Bug
    • Resolution: Unresolved
    • P2: Important
    • None
    • 5.10
    • GUI: OpenGL, Qt3D
    • None
    • Windows, opengl es 2.0

    Description

      The function QOpenGLTexture::allocateStorage used by Qt3D overrides a RGB pixel format with a RGBA pixel format thus making it impossible to create a valid RGB8_UNorm texture through Qt3D api with custom QTextureImageDataGenerator and QTextureImageData.

      Tested on windows, opengl es 2.0

      The problem is in function pixelFormatCompatibleWithInternalFormat (qopengltexture.cpp: 780).
      The related commit is: http://code.qt.io/cgit/qt/qtbase.git/commit/?id=0c789184c7c7a7130346206e4abbcffc0858dfd7
      So it possibly affect all qt version > 5.3

      Attachments

        For Gerrit Dashboard: QTBUG-66365
        # Subject Branch Project Status CR V
        220028,3 Fix creation of RGB texture with QOpenGLTexture/Qt3D on OpenGL ES 2.0 5.11 qt/qtbase Status: MERGED +2 0

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            sletta Gunnar Sletta
            davidadeko davidadeko
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            Dates

              Created:
              Updated:

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