From a3529e7c3fcb7b2a5e6cbec4c77c3585230da51b Mon Sep 17 00:00:00 2001 From: Manolo Gouy Date: Mon, 20 Aug 2018 15:56:39 +0000 Subject: Improved documentation related to access to OpenGL 3 under X11 platform. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@13022 ea41ed52-d2ee-0310-a9c1-e6b18d33e121 --- documentation/src/opengl.dox | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'documentation/src') diff --git a/documentation/src/opengl.dox b/documentation/src/opengl.dox index 08ab000ee..7e75e82b7 100644 --- a/documentation/src/opengl.dox +++ b/documentation/src/opengl.dox @@ -456,6 +456,9 @@ showing how to use OpenGL 3.0 (or higher versions) with FLTK in a cross-platform It contains also OpenGL3-glut-test.cxx which shows how to use FLTK's GLUT compatibility and OpenGL 3. +To access OpenGL 3.0 (or higher versions), use the FL_OPENGL3 flag +when calling Fl_Gl_Window::mode(int a) or glutInitDisplayMode(). + On the Windows and Unix/Linux platforms, FLTK creates contexts implementing the highest OpenGL version supported by the hardware, which are also compatible with lower OpenGL versions. Thus, FLTK allows @@ -463,9 +466,7 @@ source code targeting any version of OpenGL. Access to functions from OpenGL versions above 1.1 requires to load function pointers at runtime on these platforms. FLTK recommends to use the GLEW library to perform this. It is therefore necessary to install the GLEW library (see below). On the macOS platform, -FLTK creates by default contexts implementing OpenGL versions 1 or 2. -To access OpenGL 3.0 (or higher versions), use the FL_OPENGL3 flag (see below). -Mac OS 10.7 or above is required; GLEW is possible but not necessary. +MacOS 10.7 or above is required; GLEW is possible but not necessary. \par GLEW installation (Unix/Linux and Windows platforms) GLEW is available as a package for most Linux distributions and in source -- cgit v1.2.3