define an array of generic vertex attribute data
$indexSpecifies the index of the generic vertex attribute to be modified.
$sizeSpecifies the number of components per generic vertex attribute. Must be 1, 2, 3, 4. Additionally, the symbolic constant
GL_BGRAis accepted by glVertexAttribPointer. The initial value is 4.
$typeSpecifies the data type of each component in the array. The symbolic constants
GL_BYTE, GL_UNSIGNED_BYTE, GL_SHORT, GL_UNSIGNED_SHORT, GL_INT, and GL_UNSIGNED_INTare accepted by glVertexAttribPointer and glVertexAttribIPointer. Additionally GL_HALF_FLOAT, GL_FLOAT, GL_DOUBLE, GL_FIXED, GL_INT_2_10_10_10_REV, GL_UNSIGNED_INT_2_10_10_10_REVand GL_UNSIGNED_INT_10F_11F_11F_REVare accepted by glVertexAttribPointer. GL_DOUBLEis also accepted by glVertexAttribLPointer and is the only token accepted by the type parameter for that function. The initial value is GL_FLOAT.
$normalizedFor glVertexAttribPointer, specifies whether fixed-point data values should be normalized (
GL_TRUE) or converted directly as fixed-point values ( GL_FALSE) when they are accessed.
$strideSpecifies the byte offset between consecutive generic vertex attributes. If stride is 0, the generic vertex attributes are understood to be tightly packed in the array. The initial value is 0.
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