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| ||SDL_GL_MULTISAMPLESAMPLES|||| ||SDL_GL_ACCELERATED_VISUAL|||| ||SDL_GL_RETAINED_BACKING|||| ||SDL_GL_CONTEXT_MAJOR_VERSION|||| ||SDL_GL_CONTEXT_MINOR_VERSION|||| |
||SDL_GL_MULTISAMPLESAMPLES||the number of samples used around the current pixel used for multisample anti-aliasing; defaults to 0; see [[#multisample|Remarks]] for details|| ||SDL_GL_ACCELERATED_VISUAL||set to 1 to require hardware acceleration, set to 0 to force software rendering; defaults to allow either|| ||<style="color: #808080;">SDL_GL_RETAINED_BACKING||<style="color: #808080;">not used, deprecated|| ||SDL_GL_CONTEXT_MAJOR_VERSION||OpenGL context major version; see [[#OpenGL|Remarks]] for details|| ||SDL_GL_CONTEXT_MINOR_VERSION||OpenGL context minor version; see [[#OpenGL|Remarks]] for details|| |
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| <<Anchor(multisample)>> [[http://en.wikipedia.org/wiki/Multisample_anti-aliasing|Multisample anti-aliasing]] is a type of full screen anti-aliasing. Multipsample anti-aliasing defaults to off but can be turned on by setting SDL``_GL``_MULTISAMPLEBUFFERS to 1 and SDL_``GL_``MULTISAMPLESAMPLES to a value greater than 0. | <<Anchor(multisample)>> [[http://en.wikipedia.org/wiki/Multisample_anti-aliasing|Multisample anti-aliasing]] is a type of full screen anti-aliasing. Multipsampling defaults to off but can be turned on by setting SDL``_GL``_MULTISAMPLEBUFFERS to 1 and SDL_``GL_``MULTISAMPLESAMPLES to a value greater than 0. Typical values are 2 and 4. <<Anchor(OpenGL)>> SDL_``GL_``CONTEXT_``MAJOR_``VERSION and SDL_``GL_``CONTEXT_``MINOR_``VERSION are used when creating an OpenGL 3.x context. |
SDL_GLattr
An enumeration of OpenGL configuration attributes.
Values
SDL_GL_RED_SIZE |
the minimum number of bits for the red channel of the color buffer; defaults to 3 |
SDL_GL_GREEN_SIZE |
the minimum number of bits for the green channel of the color buffer; defaults to 3 |
SDL_GL_BLUE_SIZE |
the minimum number of bits for the blue channel of the color buffer; defaults to 2 |
SDL_GL_ALPHA_SIZE |
the minimum number of bits for the alpha channel of the color buffer; defaults to 0 |
SDL_GL_BUFFER_SIZE |
defaults to 0 |
SDL_GL_DOUBLEBUFFER |
whether the output is single or double buffered; defaults to double buffering on |
SDL_GL_DEPTH_SIZE |
the minimum number of bits in the depth buffer; defaults to 16 |
SDL_GL_STENCIL_SIZE |
the minimum number of bits in the stencil buffer; defaults to 0 |
SDL_GL_ACCUM_RED_SIZE |
the minimum number of bits for the red channel of the accumulation buffer; defaults to 0 |
SDL_GL_ACCUM_GREEN_SIZE |
the minimum number of bits for the green channel of the accumulation buffer; defaults to 0 |
SDL_GL_ACCUM_BLUE_SIZE |
the minimum number of bits for the blue channel of the accumulation buffer; defaults to 0 |
SDL_GL_ACCUM_ALPHA_SIZE |
the minimum number of bits for the alpha channel of the accumulation buffer; defaults to 0 |
SDL_GL_STEREO |
whether the output is stereo 3D; defaults to off |
SDL_GL_MULTISAMPLEBUFFERS |
the number of buffers used for multisample anti-aliasing; defaults to 0; see Remarks for details |
SDL_GL_MULTISAMPLESAMPLES |
the number of samples used around the current pixel used for multisample anti-aliasing; defaults to 0; see Remarks for details |
SDL_GL_ACCELERATED_VISUAL |
set to 1 to require hardware acceleration, set to 0 to force software rendering; defaults to allow either |
SDL_GL_RETAINED_BACKING |
not used, deprecated |
SDL_GL_CONTEXT_MAJOR_VERSION |
OpenGL context major version; see Remarks for details |
SDL_GL_CONTEXT_MINOR_VERSION |
OpenGL context minor version; see Remarks for details |
Code Examples
You can add your code example here
Remarks
Multisample anti-aliasing is a type of full screen anti-aliasing. Multipsampling defaults to off but can be turned on by setting SDL_GL_MULTISAMPLEBUFFERS to 1 and SDL_GL_MULTISAMPLESAMPLES to a value greater than 0. Typical values are 2 and 4.
SDL_GL_CONTEXT_MAJOR_VERSION and SDL_GL_CONTEXT_MINOR_VERSION are used when creating an OpenGL 3.x context.
