E
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emissive property
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The material property that determines whether a material emits light. The emissive property of a material is one of two properties that determines how the material reflects light. See also specular property.
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emissive setting
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See emissive property.
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enable frame
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The frame to which a light applies.
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envelope
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A set of values that defines the shape of a force feedback effect by modifying the magnitude at the beginning (attack) and end (fade).
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even field
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The second field comprising a video frame in an odd/even field set. Also known as field 2.
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execute buffer
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A fully self-contained, independent packet of information that describes a 3-D scene. An execute buffer contains a vertex list followed by an instruction stream. The instruction stream consists of operation codes, or opcodes, and the data that is operated on by those opcodes.