Re: [PyOpenGL-Users] PyOpenGL_accelerate / subclassed numpy arrays
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From: Chris B. <chr...@no...> - 2015-11-08 17:29:54
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On Sun, Nov 8, 2015 at 8:20 AM, Rob McMullen - NOAA Affiliate < rob...@no...> wrote: > I know I've run into that problem when my VBO data was in recarray format. > Defining the VBO as a view of the array in dtype=np.float32 format worked. > I haven't lloked an ANY of the relevant coce here, but this seems to indicae that PyOpenGL_accelerate can't handle subclasses of ndarray -- which doesn't surprise me -- it's notoriously difficult to do that. but the error: File "arraydatatype.pyx", line 57, in OpenGL_accelerate. arraydatatype.HandlerRegistry.c_lookup (src/arraydatatype.c:2230) TypeError: No array-type handler for type <class 'glumpy.gloo.buffer.VertexBuffer'> (value: VertexBuffer([151, 10, 1, ..., 0, 128, 63], ) registered makes me think that arraydatatype.HandlerRegistry is where you need to put awareness of a new subclass. or it needs to be fixed to recognize ndarray subclasses -- either by directly checking if it is a proper subclass, or by using the array protocol -- which I think is the __array__ method... HTH, -CHris > Rob > > On Thu, Nov 5, 2015 at 11:08 PM, Nicolas P. Rougier < > Nic...@in...> wrote: > >> >> I've made a numpy array subclass for a vertex buffer that works great >> with PyOpenGL but does not work if PyOpenGL_accelerate is installed, it >> complains about about missing handler: >> >> File "/Users/rougier/Development/Public/glumpy/glumpy/gloo/buffer.py", >> line 75, in _update >> gl.glBufferSubData(self.target, offset, nbytes, data) >> File "latebind.pyx", line 44, in >> OpenGL_accelerate.latebind.Curry.__call__ (src/latebind.c:1201) >> File >> "/usr/locaL/Cellar/python3/3.5.0/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/OpenGL/GL/VERSION/GL_1_5.py", >> line 122, in glBufferSubData >> data = ArrayDatatype.asArray( data ) >> File "arraydatatype.pyx", line 174, in >> OpenGL_accelerate.arraydatatype.ArrayDatatype.asArray >> (src/arraydatatype.c:4221) >> File "arraydatatype.pyx", line 57, in >> OpenGL_accelerate.arraydatatype.HandlerRegistry.c_lookup >> (src/arraydatatype.c:2230) >> TypeError: No array-type handler for type <class >> 'glumpy.gloo.buffer.VertexBuffer'> (value: VertexBuffer([151, 10, 1, >> ..., 0, 128, 63], ) registered >> >> >> Python: 3.5 >> PyOpenGL: 3.1.0 >> PyOpenGL_accelerate: 3.1.0 >> The package I'm developing: http://glumpy.github.io >> >> Any idea ? >> >> Nicolas >> >> >> >> >> ------------------------------------------------------------------------------ >> _______________________________________________ >> PyOpenGL Homepage >> http://pyopengl.sourceforge.net >> _______________________________________________ >> PyOpenGL-Users mailing list >> PyO...@li... >> https://lists.sourceforge.net/lists/listinfo/pyopengl-users >> > > > > ------------------------------------------------------------------------------ > > _______________________________________________ > PyOpenGL Homepage > http://pyopengl.sourceforge.net > _______________________________________________ > PyOpenGL-Users mailing list > PyO...@li... > https://lists.sourceforge.net/lists/listinfo/pyopengl-users > > -- Christopher Barker, Ph.D. Oceanographer Emergency Response Division NOAA/NOS/OR&R (206) 526-6959 voice 7600 Sand Point Way NE (206) 526-6329 fax Seattle, WA 98115 (206) 526-6317 main reception Chr...@no... |