1282 2016-01-10 14:04:49 +0100 "'gl_FragColor' : undeclared identifier" thrown during fragment shader compilation with GL2ES2 2019-03-29 14:19:17 +0100 1 1 3 JogAmp Jogl awt 2.4.0 pc_x86_64 windows RESOLVED INVALID P4 normal --- 0 webermax2004 sgothel FEATURE --- oldest_to_newest 5509 0 769 webermax2004 2016-01-10 14:04:49 +0100 Created attachment 769 Source file Noticed using 2.3.2. as available on http://jogamp.org/deployment/jogamp-current/archive/. The following code in a GLEventListener produces an error : public class MyGLEventListener implements GLEventListener { public void display (GLAutoDrawable drawable) { GL2ES2 gl = drawable.getGL ().getGL2ES2(); ShaderCode fs; String[][] fsCode = {{"void main (void) { gl_FragColor = vec4 (1.0, 0.0, 0.0, 1.0); }"}}; fs = new ShaderCode (GL2ES2.GL_FRAGMENT_SHADER, 1, fsCode); fs.compile (gl, System.out); } //... } The error message is : Shader status invalid: ERROR: 0:1: 'gl_FragColor' : undeclared identifier ERROR: 0:1: 'assign' : cannot convert from 'const 4-component vector of float' to 'float' But it works fine when using GL2 instead of GL2ES2 : public class MyGLEventListener implements GLEventListener { public void display (GLAutoDrawable drawable) { GL2 gl = drawable.getGL ().getGL2(); ShaderCode fs; String[][] fsCode = {{"void main (void) { gl_FragColor = vec4 (1.0, 0.0, 0.0, 1.0); }"}}; fs = new ShaderCode (GL2.GL_FRAGMENT_SHADER, 1, fsCode); fs.compile (gl, System.out); } //... } Full code attached. 5510 1 webermax2004 2016-01-10 20:37:56 +0100 Problem is not with JOGL, but with the driver which doesn't consider using GLSL 1.0 by default even if the GLSL #version directive is not used in the fragment shader code. 769 2016-01-10 14:04:49 +0100 2016-01-10 14:04:49 +0100 Source file MyProgram.java text/plain 1795 webermax2004 aW1wb3J0IGphdmEuYXd0Lio7DQppbXBvcnQgamF2YS5hd3QuZXZlbnQuKjsNCmltcG9ydCBjb20u am9nYW1wLm9wZW5nbC5hd3QuR0xDYW52YXM7DQppbXBvcnQgY29tLmpvZ2FtcC5vcGVuZ2wuR0xQ cm9maWxlOw0KaW1wb3J0IGNvbS5qb2dhbXAub3BlbmdsLkdMQ2FwYWJpbGl0aWVzOw0KaW1wb3J0 IGNvbS5qb2dhbXAub3BlbmdsLkdMQXV0b0RyYXdhYmxlOw0KaW1wb3J0IGNvbS5qb2dhbXAub3Bl bmdsLkdMRXZlbnRMaXN0ZW5lcjsNCmltcG9ydCBjb20uam9nYW1wLm9wZW5nbC51dGlsLmdsc2wu U2hhZGVyQ29kZTsNCmltcG9ydCBjb20uam9nYW1wLm9wZW5nbC5HTDJFUzI7DQppbXBvcnQgY29t LmpvZ2FtcC5vcGVuZ2wudXRpbC5nbHNsLlNoYWRlclByb2dyYW07DQoNCnB1YmxpYyBjbGFzcyBN eVByb2dyYW0gew0KCXB1YmxpYyBNeVByb2dyYW0gKCkgew0KCQlGcmFtZSBmID0gbmV3IEZyYW1l ICgiVGVzdCBmcmFtZSIpOw0KCQlmLmFkZFdpbmRvd0xpc3RlbmVyIChuZXcgTXlXaW5kb3dBZGFw dGVyICgpKTsNCiAgICAgICAgR0xQcm9maWxlIGdsUHJvZmlsZSA9IEdMUHJvZmlsZS5nZXQgKEdM UHJvZmlsZS5HTDJFUzIpOw0KICAgICAgICBHTENhcGFiaWxpdGllcyBnbENhcGFiaWxpdGllcyA9 IG5ldyBHTENhcGFiaWxpdGllcyAoZ2xQcm9maWxlKTsNCiAgICAgICAgR0xDYW52YXMgZ2xDYW52 YXMgPSBuZXcgR0xDYW52YXMgKGdsQ2FwYWJpbGl0aWVzKTsNCgkJZ2xDYW52YXMuYWRkR0xFdmVu dExpc3RlbmVyIChuZXcgTXlHTEV2ZW50TGlzdGVuZXIgKCkpOw0KCQlmLmFkZCAoZ2xDYW52YXMp Ow0KCQlmLnNldFNpemUgKDMwMCwgMzAwKTsNCgkJZi5zZXRWaXNpYmxlICh0cnVlKTsNCgl9DQoN CglwdWJsaWMgY2xhc3MgTXlXaW5kb3dBZGFwdGVyIGV4dGVuZHMgV2luZG93QWRhcHRlciB7DQoJ CXB1YmxpYyB2b2lkIHdpbmRvd0Nsb3NpbmcgKFdpbmRvd0V2ZW50IGUpIHsNCgkJCVN5c3RlbS5l eGl0ICgwKTsNCgkJfQ0KCX0NCg0KCXB1YmxpYyBjbGFzcyBNeUdMRXZlbnRMaXN0ZW5lciBpbXBs ZW1lbnRzIEdMRXZlbnRMaXN0ZW5lciB7DQoJCXB1YmxpYyB2b2lkIGRpc3BsYXkgKEdMQXV0b0Ry YXdhYmxlIGRyYXdhYmxlKSB7DQoJCQlTeXN0ZW0ub3V0LnByaW50bG4gKCJkaXNwbGF5ICgpIik7 DQoJCQlHTDJFUzIgZ2wgPSBkcmF3YWJsZS5nZXRHTCAoKS5nZXRHTDJFUzIoKTsNCgkJCVNoYWRl ckNvZGUgZnM7DQoJCQlTdHJpbmdbXVtdIGZzQ29kZSA9IHt7InZvaWQgbWFpbiAodm9pZCkgeyBn bF9GcmFnQ29sb3IgPSB2ZWM0ICgxLjAsIDAuMCwgMC4wLCAxLjApOyB9In19OyAvLyBRdWFuZCBv biB1dGlsaXNlIEdMMkVTMiA9PiAnZ2xfRnJhZ0NvbG9yJyA6IHVuZGVjbGFyZWQgaWRlbnRpZmll ciANCgkJCWZzID0gbmV3IFNoYWRlckNvZGUgKEdMMkVTMi5HTF9GUkFHTUVOVF9TSEFERVIsIDEs IGZzQ29kZSk7DQoJCQlmcy5jb21waWxlIChnbCwgU3lzdGVtLm91dCk7DQoJCX0NCgkJcHVibGlj IHZvaWQgZGlzcG9zZSAoR0xBdXRvRHJhd2FibGUgZHJhd2FibGUpIHsNCgkJCVN5c3RlbS5vdXQu cHJpbnRsbiAoImRpc3Bvc2UgKCkiKTsNCgkJfQ0KCQlwdWJsaWMgdm9pZCBpbml0IChHTEF1dG9E cmF3YWJsZSBkcmF3YWJsZSkgew0KCQkJU3lzdGVtLm91dC5wcmludGxuICgiaW5pdCAoKSIpOw0K CQl9DQoJCXB1YmxpYyB2b2lkIHJlc2hhcGUgKEdMQXV0b0RyYXdhYmxlIGRyYXdhYmxlLCBpbnQg eCwgaW50IHksIGludCB3aWR0aCwgaW50IGhlaWdodCkgew0KCQkJU3lzdGVtLm91dC5wcmludGxu ICgicmVzaGFwZSAoKSIpOw0KCQl9DQoJfQ0KfQ==