simon place
simon place
after update, on the world, Titania becomes unresponsive... console shows > (titania:3): GStreamer-CRITICAL **: gst_poll_read_control: assertion 'set != NULL' failed repeated in unlimited numbers
i am having this happen regularly but not reliably, however... during a sequence of add/remove urls, add/remove the files they link too (so at some point a file was not...
also on; https://cuppaclub.pgtips.co.uk/locations/group/1/
image on user news group
thanks, i did come to think it was just a visualisation effect more than anything fundamental, but posted just in case it wasn't. i think it could just be marked...
changing sphere radius to 4.0001 fixes problem. (or 3.9999) seems like someone didn't consider what to do with an exact equality somewhere. whats wrong with the STL?
this will be the same thing as "multiple transparent objects viewed through each other doesn't work" also effects lines, 
as far as i know this is unfixable, (is possible in opengl but dont think the replacement of the fixed pipeline is possible in webgl)
update: this appears fixed by default in DX11 generation cards, (so will just work in webgl i think) the fix is referred to as a new feature called: "Order-independent transparency"...
this might be a way to get around this problem; http://castle-engine.sourceforge.net/vrml_engine_doc/output/xsl/html-nochunks/vrml_engine.html#section.material_transparency_by_stipple