var fDesc=new Array(); fDesc[0] = "TessMark is an OpenGL benchmark and tech demo that uses the new hardware tessellation (or GPU tessellation) features exposed by the OpenGL 4 API and available on the latest graphics cards like the NVIDIA GeForce GTX 480 or the ATI Radeon HD 5870. Hardware tessellation makes it possible to divide a polygon into smaller ones (according to the tessellation level factor) in order to increase polygons density: the higher the tessellation level, the higher the polygon density. A high tessellation level requires much GPU processing power."; function tShowHide(id, show) { var s = document.getElementById("desc"); if ((s.innerHTML.length<=212 || show==1) && show!=2) { s.innerHTML = fDesc[id]; if (document.getElementById('m1')) document.getElementById('m1').style.display='none'; if (document.getElementById('m2')) document.getElementById('m2').style.display='none'; if (document.getElementById('more_txt')) document.getElementById('more_txt').style.display='inline'; } else { s.innerHTML = ''; } }