Vbo array attribute error in Windows

1

I’m building an app in Windows, that compiles and runs fine on macOS, but I’m encountering some Vbo issues. An array attribute which is float[ 6 ] is expected to have 0 size for some reason, so it fails to work. This is the warning message:

|warning| cinder::gl::VboMesh::buildVao[500] Batch GlslProg expected an Attrib of USER_DEFINED, with name iColorMask[0] but vertex data doesn't provide it.

C++ setup:

    std::vector< float > instanceColorMasks;
    ...
    
    mVboInstanceColorMaskData = gl::Vbo::create( GL_ARRAY_BUFFER,
            instanceColorMasks.size() * sizeof( float ), instanceColorMasks.data(),
            GL_DYNAMIC_DRAW );
    geom::BufferLayout instanceColorMaskDataLayout;
    instanceColorMaskDataLayout.append( geom::Attrib::CUSTOM_1, 6, sizeof( float ) * 6, 0, 1 );

    mesh->appendVbo( instanceColorMaskDataLayout, mVboInstanceColorMaskData );

    ...

    mBatch = gl::Batch::create( mesh, mGlsl,
            { { geom::Attrib::CUSTOM_0, "iTransform" },
              { geom::Attrib::CUSTOM_1, "iColorMask" } } );

and in the shader:

         in float iColorMask[ 6 ];

Do you have any idea why this would happen? Am I missing something?
Any suggestions would be greatly appreciated.

-Gabor

2

Changing the attribute definition as below in the batch creation seems to work. It was required in linux and windows.

  { geom::Attrib::CUSTOM_1, "iColorMask[0]" }
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