Since GL4Java 2.2.0, tesselation is supported ! ================================================ Please look in the sources and/or javadoc of: gl4java.GLUTFunc There exist also many demos: demos/MiscDemos/tess demos/MiscDemos/tessdemo demos/MiscDemos/tesswind DETAILS ======= The native callback manager of GL4Java seeks the callback function with: - callback method-type (the "which" argument of the Callback function) - the current gl-context Because the callback manager functions do not know the tessellator/nurbs/quadratics id, only ONE callback-method for one gl-context and "which"-method is supported !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Sven Goethel http://www.jausoft.com 7th March 2000