A helper class to create a OpenGL geometry shader programs. More...
#include <ocean/GLvish/Programmable.hpp>
Inheritance diagram for Wizt::ProgrammableGeometry:
Public Member Functions | |
| RefPtr< RenderBasin::Program > | CompileGeometryShader (VRenderContext &Context, const std::string &Name, const RenderBasin::Program::Setup &setup=nullptr) const |
| Compile the shader into an OpenGL Program. | |
| GL::render_primitives | RenderPrimitive () const |
| Provide the render primitive type for the input type of the associated geometry shader here. | |
 Public Member Functions inherited from Wizt::Programmable | |
| RefPtr< RenderBasin::Program > | CompileShader (VRenderContext &Context, const std::string &Name, const RenderBasin::Program::Setup &SetupFunction=nullptr, const RefPtr< RenderBasin::Program > &ExistingProgram=NullPtr(), const glsl &LocalVertexShaderPrefixCode="", const glsl &LocalGeometryShaderPrefixCode="", const glsl &LocalFragmentShaderPrefixCode="") const |
| Compile the shader into an OpenGL Program. | |
| void | enableViewportArray (bool EnableFragmentLayerViewport=true) |
| virtual glsl | fragment_shader (VRenderContext &Context) const =0 |
| Vertexshader GLGS code. | |
| virtual glsl | geometry_shader (VRenderContext &Context) const |
| Geometry GLGS code, not used here, only in subclass ProgrammableGeometry . | |
| virtual glsl | GeometryShaderPrefix (VRenderContext &Context) const |
| Optional context-dependent prefix shader code. | |
| std::pair< glsl, string > | getCode (VRenderContext &Context, const std::string &Name, const std::string &Ext, std::string(Programmable::*shader)(VRenderContext &Context) const, const string &PrefixCode) const |
| Return the combination of GLSL source code and the filename from which it was read. | |
| void | setGLSLVersion (const string &v_version, const string &g_version, const string &f_version) |
| Set the version number string, e.g. | |
| void | setGLSLVersion (const string &version) |
| Set the version number string, e.g. | |
| virtual glsl | vertex_shader (VRenderContext &Context) const =0 |
| Vertexshader GLGS code. | |
Additional Inherited Members | |
| Public Types inherited from Wizt::Programmable | |
| typedef RenderBasin::Program | Program |
| Shortcut typedef. | |
| Static Public Member Functions inherited from Wizt::Programmable | |
| static string | OptionalFileRead (const string &filename, const string &text) |
| Read some string from the given file, using the given text as default if no such file exists. | |
| static glsl | setNumberOfLightSources (VRenderContext &Context, const std::string &VariableName="lightNum") |
| Produce GLSL code including the number of light sources that are currently active in the render context. | |
| Public Attributes inherited from Wizt::Programmable | |
| glsl | f_prefix |
| Optional shader code to be always prefixed in the fragment shader. | |
| glsl | g_prefix |
| Optional static shader code to be always prefixed in the geometry shader. | |
| RenderBasin::GeometryInputType | GeometryInput |
| Input type for geometry shaders. | |
| RenderBasin::GeometryOutputType | GeometryOutput |
| Output type for geometry shaders. | |
| glsl | v_prefix |
| Optional shader code to be always prefixed in the vertex shader. | |
| Static Public Attributes inherited from Wizt::Programmable | |
| static const char | default_fragment_shader [] |
| Default fragment code. | |
| static const char | default_geometry_shader [] |
| Default geometry code. | |
| static const char | default_vertex_shader [] |
| Default vertex shader. | |
Detailed Description
A helper class to create a OpenGL geometry shader programs.
Child classes must call CompileGeometryShader() to compile a GL program including a geometry shader.
For more information on geometry shaders see
- http://developer.download.nvidia.com/opengl/specs/GL_EXT_geometry_shader4.txt
- http://cirl.missouri.edu/gpu/glsl_lessons/glsl_geometry_shader/index.html
- http://appsrv.cse.cuhk.edu.hk/~ymxie/Geometry_Shader/
- http://lumina.sourceforge.net/?id=29
- https://agora.cs.uiuc.edu/display/graphics/Geometry+Shader+Hello+World
Member Function Documentation
◆ RenderPrimitive()
|
inline |
Provide the render primitive type for the input type of the associated geometry shader here.
This must be compatible, e.g. for DrawArray().
