The WebGLRenderer to create the WebGLStencilParameters for.
Optionalenabled: booleanWhether the stencil test is enabled. Default false.
Optionalfunc: numberThe comparison function. Default GL_ALWAYS.
OptionalfuncRef: numberThe reference value for the stencil test. Default 0.
OptionalfuncMask: numberThe mask to apply to the stencil test. Default 0xFF.
OptionalopFail: numberThe operation to perform if the stencil test fails. Default GL_KEEP.
OptionalopZfail: numberThe operation to perform if the depth test fails. Default GL_KEEP.
OptionalopZpass: numberThe operation to perform if the stencil test passes and the depth test passes or is disabled. Default GL_KEEP.
Optionalclear: numberThe value to clear the stencil buffer to. Default 0.
Creates a new WebGLStencilParameters.