glDepthFunc Function

GL_APICALL void GL_APIENTRY glDepthFunc(
     GLenum func
);

	Name	Description
in	func	Comparison function

No values are returned.

Specifies the comparison function to use for depth tests.

You can set func to the following values.

GL_NEVER	The depth test always fails.
GL_LESS	Passes when the depth value of the fragment is less than the depth value in the depth buffer.
GL_EQUAL	Passes when the depth value of the fragment is equal to the depth value in the depth buffer.
GL_LEQUAL	Passes when the depth value of the fragment is less than or equal to the depth value in the depth buffer.
GL_GREATER	Passes when the depth value of the fragment is greater than the depth value in the depth buffer.
GL_NOTEQUAL	Passes when the depth value of the fragment is not equal to the depth value in the depth buffer.
GL_GEQUAL	Passes when the depth value of the fragment is greater than or equal to the depth value in the depth buffer.
GL_ALWAYS	The depth test always passes.

This function generates the following errors.

GL_INVALID_ENUM	The func argument was set to an invalid value.
GL_INVALID_OPERATION	This function was called without any command-list objects bound.

2010/01/07

Initial version.