Details require contrast to show...and for monotone details that requires shadows and highlights. Generally the best way to bring out a texture (monotone detail) is by lighting it from the side at a shallow angle.

What the light source is doesn't particularly matter; only that it is primarily directional/hard and not diffused/soft.

Details require contrast to show...and for monotone details that requires shadows and highlights. Generally the best way to bring out a texture (monotone detail) is by lighting it from the side at an angle.

What the light source is doesn't particularly matter; only that it is primarily directional/hard and not diffused/soft.

Details require contrast to show...and for monotone details that requires shadows and highlights. Generally the best way to bring out a texture (monotone detail) is by lighting it from the side at a shallow angle. What the light source is doesn't particularly matter.

Details require contrast to show...and for monotone details that requires shadows and highlights. Generally the best way to bring out a texture (monotone detail) is by lighting it from the side at a shallow angle. 

What the light source is doesn't particularly matter; only that it is primarily directional/hard and not diffused/soft.