Vocabularyopengl.capabilitiesInputs and outputs| version | A version string |
| extensions | A sequence of extension name strings |
| ? | a boolean |
Word descriptionReturns true if either
has-gl-version? or
has-gl-extensions? returns true for
version or
extensions, respectively. Intended for use when required OpenGL functionality can be verified either by a minimum version or a set of equivalent extensions.
See alsorequire-gl-version,
require-glsl-version,
require-gl-extensions,
require-gl-version-or-extensions,
has-gl-version?,
has-glsl-version?,
has-gl-extensions?,
gl-version,
glsl-version,
gl-extensionsDefinition