DepthTestFunction

Depth test is disabled.

Never passes.

Passes if the new depth value is less than the current depth value.

Passes if the new depth value is equal to the current depth value.

Passes if the new depth value is less than or equal to the current depth value.

Passes if the new depth value is greater than the current depth value.

Passes if the new depth value is not equal to the current depth value.

Passes if the new depth value is greater than or equal to the current depth value.

Always passes.