Determines the function used to compare stencil values for the stencil test.
        
        
Members
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    staticconstantStencilFunction.ALWAYS :Number
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    0x0207. The stencil test always passes.
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    staticconstantStencilFunction.EQUAL :Number
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    0x0202. The stencil test passes when the masked reference value is equal to the masked stencil value.
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    staticconstantStencilFunction.GREATER :Number
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    0x0204. The stencil test passes when the masked reference value is greater than the masked stencil value.
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    staticconstantStencilFunction.GREATER_OR_EQUAL :Number
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    0x0206. The stencil test passes when the masked reference value is greater than or equal to the masked stencil value.
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    staticconstantStencilFunction.LESS :Number
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    0x0201. The stencil test passes when the masked reference value is less than the masked stencil value.
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    staticconstantStencilFunction.LESS_OR_EQUAL :Number
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    0x0203. The stencil test passes when the masked reference value is less than or equal to the masked stencil value.
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    staticconstantStencilFunction.NEVER :Number
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    0x0200. The stencil test never passes.
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    staticconstantStencilFunction.NOT_EQUAL :Number
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    0x0205. The stencil test passes when the masked reference value is not equal to the masked stencil value.
