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I need to do the following: Say the maximum displacement of a node is A. I want to use this value to manipulate the colour (red for largest , blue for lowest, interpolation of colours in between)for every vertices on my surface (would like to pass by green, yellow,.. for instance.). Currently I can only use this: glColor3f(Displacement1/A,0,1 - (Displacement1/A)); glVertex3d(x1,y1,z1); This will only give me shade of red to blue. Can anyone help me to use colours so as to describe the distribution/ analysis of displacements of nodes on the surface. Someone mentioned 1D texture and map it to the values but I haven't a clue how to do it. Are there any examples I can refer to? Regards.

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