16:21:09.901 [main] INFO c.m.r.r.OpenGLTestOrthographic - creating com.marginallyclever.robotoverlord.renderpanel.OpenGLTestStencil 16:21:09.903 [main] INFO c.m.r.r.OpenGLTestOrthographic - ----------------------------------------------------------------------------------------------------- Package: com.jogamp.opengl Extension Name: null Specification Title: null Specification Vendor: null Specification Version: null Implementation Title: null Implementation Vendor: null Implementation Vendor ID: null Implementation URL: null Implementation Version: null Implementation Build: null Implementation Branch: null Implementation Commit: null Implementation SHA Sources: null Implementation SHA Classes: null Implementation SHA Classes-this: null Implementation SHA Natives: null Implementation SHA Natives-this: null ----------------------------------------------------------------------------------------------------- 16:21:09.903 [main] INFO c.m.r.r.OpenGLTestOrthographic - ...create canvas 16:21:09.904 [main] INFO c.m.r.r.OpenGLTestOrthographic - capabilities=rgba 8/8/8/0, opaque, accum-rgba 0/0/0/0, dp/st/ms 16/8/0, dbl, mono , hw, GLProfile[GL4bc/GL4bc.hw], on-scr[.] 16:21:10.123 [AWT-EventQueue-0] ERROR c.m.r.systems.render.ShaderProgram - Failed to link shader program: ERROR: Linking vertex stage: Missing entry point: Each stage requires one entry point