glVertexAttribDivisor — modify the rate at which generic vertex attributes advance during instanced rendering
Specify the index of the generic vertex attribute.
Specify the number of instances that will pass between updates of the generic attribute at slot
glVertexAttribDivisor modifies the rate at which generic vertex attributes advance when rendering multiple instances of primitives in a single draw call. If
divisor is zero, the attribute at slot
index advances once per vertex. If
divisor is non-zero, the attribute advances once per
divisor instances of the set(s) of vertices being rendered. An attribute is referred to as instanced if its
GL_VERTEX_ATTRIB_ARRAY_DIVISOR value is non-zero.
index must be less than the value of
GL_INVALID_VALUE is generated if
index is greater than or equal to the value of
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