Is there any way to vary the point size when drawing lots of points? I know there's the glPointSize(float), but is there a way to do it in a 'batch' or array?

I would like the points to have different sizes based on an attribute of the data. Such as each point having x, y, z, and a size attribute. I'm using frame buffers right now in java.

Could I possibly use vertex shaders for this?

opengl size glsl point
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