01-01-osg GL3 environment setup

osg GL3 Compilation of configuration

auhor: longlongwaytogo
email: [email protected]
repo: https://github.com/longlongwaytogo/LearnOsgGL3

preparation

• download osg The latest version

  git clone [email protected]:openscenegraph/OpenSceneGraph.git

• download osg be based on vs2019_x64 Third party library ( thank osg Moderator freesouth Compilation of )

  come from freesouth Moderator's link

• download OpengGL The header file

  	git clone [email protected]:KhronosGroup/OpenGL-Registry.git
  
  
  

• download egl The header file

  	git clone [email protected]:KhronosGroup/EGL-Registry.git
  
  

compile

• Copy the header file ：

  • copy OpenGL-Registry\api\GL Directory to OpenSceneGraph\include Under the table of contents

  • copy EGL-Registry\api\KHR Directory to OpenSceneGraph\include Under the table of contents

    Pictured ：

  

• Unzip the third-party library

• function cmake-gui To configure

  • stay opensceneGraph The directory specifies binary The catalogue is build_vs2019_x64_GL3
  • Set up ACTUAL_3RDPARTY_DIR The catalogue is 3rdparty Location path
  • search Input in opengl, Set up opengl The header file is glcorearb.h, Here's the picture ：
    

• Set up osg Chinese vs OpenGL Support for ：

  • Enabled configuration ：

    • OSG_GL3_AVAILABLE

  • Disabled configuration ：

    • OSG_GL1_AVAILABLE
    • OSG_GL2_AVAILABLE
    • OSG_GLES1_AVAILABLE
    • OSG_GLES2_AVAILABLE
    • OSG_GL_DISPLAYLISTS_AVAILABLE
    • OSG_GL_FIXED_FUNCTION_AVAILABLE
    • OSG_GL_MATRICES_AVAILABLE
    • OSG_GL_VERTEX_ARRAY_FUNCS_AVAILABLE
    • OSG_GL_VERTEX_FUNCS_AVAILABLE

  As shown in the figure ：
  

  • Set up compilation BUILD_OSG_EXAMPLES Options
  • Set up WIN32_USE_MP Speed up compilation
  • Click on genrate, open sln Project to compile

• Bug fix ：

  Failure to compile may occur , Can't find GL_COMPRESSED_RGB_S3TC_DXT1_EXT, Need to be commented out Texture Header file No 60 That's ok , Because the macro is glcorearb.h It has been defined ：

		//#ifndef GL_EXT_texture_compression_s3tc
			#define GL_COMPRESSED_RGB_S3TC_DXT1_EXT 0x83F0
			#define GL_COMPRESSED_RGBA_S3TC_DXT1_EXT 0x83F1
			#define GL_COMPRESSED_RGBA_S3TC_DXT3_EXT 0x83F2
			#define GL_COMPRESSED_RGBA_S3TC_DXT5_EXT 0x83F3
			#define GL_COMPRESSED_SRGB_S3TC_DXT1_EXT 0x8C4C
			#define GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT 0x8C4D
			#define GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT 0x8C4E
			#define GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT 0x8C4F
		//#endif

• copy The third hair warehouse dll To bin Under the table of contents

• function In the example osgsimplegl3：

  	osgsimplegl3 cow.osg
  

  Pictured ：