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The input node, in Blender Render, called "coordinates":

outputs the geometry local coordinates, relative to its bounding box as RGB colors.

But the coordinates of what object?

No matter what I do to any object in my scene, the coordinate node outputs the exact same image.

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You can try this kind of configuration :

enter image description here

The bounding box is considered as a local space from (0, 0, 0) to (1, 1, 1), and each vertex of your mesh has a position into this bounding box. The 'coordinates' node gives this position.

Here with a sphere, no vertex has coordinates greater than 0.8, so you don't have any white part (this is a top view) :

enter image description here

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  • $\begingroup$ oh so the texture isnt meant to change? Only the mapping of the texture changes based on the coordinates of the vertices? $\endgroup$ – eromod Jul 14 '16 at 9:08
  • $\begingroup$ @eromod, yes as all objects have proportionally the same bounding box. Only the vertices positions relatively to the bounding box matters. $\endgroup$ – lemon Jul 14 '16 at 9:11

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