X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2Fdocs%2FOpenGL.pod;fp=lib%2Fdocs%2FOpenGL.pod;h=30bf340b27d399c36174d006b605ce7b14b63e17;hb=896b04ee008898e1c1edbdd432bedaa8643400dc;hp=0000000000000000000000000000000000000000;hpb=b3cdeb39a431b026168c4060bf74001fcee07493;p=sdlgit%2FSDL_perl.git diff --git a/lib/docs/OpenGL.pod b/lib/docs/OpenGL.pod new file mode 100644 index 0000000..30bf340 --- /dev/null +++ b/lib/docs/OpenGL.pod @@ -0,0 +1,68 @@ +=pod + + + +=head1 NAME + +SDL::OpenGL - a perl extension + +=head1 DESCRIPTION + +L is a perl module which when used by your application +exports the gl* and glu* functions into your application's primary namespace. +Most of the functions described in the OpenGL 1.3 specification are currently +supported in this fashion. As the implementation of the OpenGL bindings that +comes with SDL_perl is largely type agnositic, there is no need to decline +the function names in the fashion that is done in the C API. For example, +glVertex3d is simply glVertex, and perl just does the right thing with regards +to types. + +=head1 CAVEATS + +The following methods work different in Perl than in C: + +=over 2 + +=item glCallLists + + glCallLists(@array_of_numbers); + +Unlike the C function, which get's passed a count, a type and a list of +numbers, the Perl equivalent only takes a list of numbers. + +Note that this is slow, since it needs to allocate memory and construct a +list of numbers from the given scalars. For a faster version see +L. + +=back + +The following methods exist in addition to the normal OpenGL specification: + +=over 2 + +=item glCallListsString + + glCallListsString($string); + +Works like L, except that it needs only one parameter, a scalar +holding a string. The string is interpreted as a set of bytes, and each of +these will be passed to glCallLists as GL_BYTE. This is faster than +glCallLists, so you might want to pack your data like this: + + my $lists = pack("C", @array_of_numbers); + +And later use it like this: + + glCallListsString($lists); + +=back + +=head1 AUTHOR + +David J. Goehrig + +=head1 SEE ALSO + +L L + +=cut