I loaded the ‘.tiff’ image and displayed it on the screen.(Using MFC)

Because the coordinate system of OpenGL increases the x-axis from -1 to 1 and the y-axis decreases from 1 to -1 (Total length: 2) I made the x- and y-coordinate by dividing the horizontal value of 2.

For example, if the image was 50x50, then 2/50 was used to obtain each coordinate value.

Then, I drew the image in two dimensions on the screen using glvertex and glcolor.

I want to make this a three-dimensional mesh by adjusting the z-values of the glvertex (x,y,z).

The current x and y values are in the form of GLFLOAT and are extremely small numbers below one.

( ex) x : 0.002198, y : 0.002234)

I have tried adding z-values to the glvertex at random, but 3D mesh does not form. What the hell’s the matter?

I shall appreciate any advice

Thank you