Examples

Note: this requires OPTION_BUILD_EXAMPLES=On.

Brief overview of the following globjects examples:

• commandlineoutput
• computeshader
• programpipelines
• qt-example
• shaderincludes
• sparse-texture
• states
• tessellation
• texture
• transformfeedback
• wikiexample

commandlineoutput

commandlineoutput shows the logging capabilities of globjects. The output is:

OpenGL Version:  3.1
OpenGL Vendor:   NVIDIA Corporation
OpenGL Renderer: GeForce GTX 960M/PCIe/SSE2

Test Logging of Standard Types:
  void *      00000013E0B5EDE8 : 00000013E0B5EDE8
  bool                    true : true
  char                     'a' : a
  unsigned char            'a' : a
  const char *         "hello" : hello
  const std::string &  "world" : world
  short                  32767 : 32767
  int               2147483647 : 2147483647
  unsigned integer          23 : 23
  long integer            1337 : 1337
  long long integer 1234567890 : 1234567890
  unsigned long integer  45123 : 45123
  float                3.14159 : 3.14159
  double           3.141592654 : 3.141592654
  long double          2.71828 : 2.71828

Test Logging of Container Types:
  std::array<int, 2> : array(0, 1)
  std::vector<float> : vector(0.1, 0.2, 0.3)

Test Logging of globjects objects:
  Buffer                : Buffer(1)
  Framebuffer           : FrameBufferObject(0)
  Program               : Program(1)
  Query                 : Query(1)
  Renderbuffer          : RenderBufferObject(1)
  Sampler               : Sampler(1)
  Shader                : Shader(2)
  Texture               : Texture(1)
  TransformFeedback     : TransformFeedback(1)
  VertexArray           : VertexArrayObject(1)
  Uniform               : Uniform(Pi, 3.14)
  AbstractUniform       : AbstractUniform(Pi)
  glbinding::Version    : Version 3.1
  std::vector<Buffer *> : vector(Buffer(2), Buffer(3))

computeshader

computeshader shows how compute shader can be loaded and used with globjects. The output is:

source image

programpipelines

programpipelines shows how program pipelines can be configured and used with globjects. The output is:

source image

qtexample

qtexample shows how the Qt framework can be used in conjunction with globjects for rendering within a QWindow. Note: OpenGLWindow was introduced in Qt 5.4. The example can be easily adjusted following the instructions on http://doc.qt.io/.

source image