Render to Texture at runtime?

BlitzMax Forums/BlitzMax OpenGL Programming/Render to Texture at runtime?

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Global skyi=LoadPixmap("sky2.png")
Global sky=bglTexFromPixmap( skyi )
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	For Local x:Int=1 To 200
WritePixel(skyi,Rand(0,255),Rand(0,255),rnd(0,255)+(Int(rnd(0,255)) Shl 8)+(Int(rnd(0,255)) Shl 16))
	next
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.
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sky=bglTexFromPixmap( skyi )


but only do bgltextfrompixmap for as few text's as
needed because transfering multiple textures to vid
ram will be slow...