How can I make a shape look like it is made of glass? Take a look at these two posts regarding the materials: This shape corresponds to the shape of the reflected light source. It could be a curved rectangle or any shape. I added a glossy reflection (if you need a glossy material), it is just a white ellipse with a transparent gradient. It is not at the center but displaced to the dark side. Playing a bit with it gives me control of the shadow. Take a look at this: How can I make the color white look as white as possible? on how to achieve a good gradient.Īnd I added an additional node, first at the center. It is the actual color I want the object to be. The first one, the center one is not white. The main gradient should consist of 3 color nodes. You are not wrapping the lower end in a shadow. Inkscape works in 2D, it has no idea how a photo should be distorted for right 3D geometry appearance. You must import an already spherically distorted photo as PNG with transparent background. They are beyond the scope of this answer. Some cliches like a curved window or ellipse, of course, can be drawn quite easily, but there can be more. Making them needs an assumption of what's around the sphere. The shadow must be in accordance with the direction of the light, how the light is projected (=does it generate sharp shadow edges and is it uniform) and how much there's diffuse ambient light. Placing the shadow and coloring it realistically is as tricky as creating the shading of the sphere. The shadow can be made as blurred grey or black ellipse. That, of course, gives the best control, but you cannot experiment easily with different colors nor use imported images as surface color. There's another answer which doesn't use blending with grey gradient for shading, the gradient contais all needed colors. The colored version in the bottom has got a brighter color to compensate the darkening: In the next version the blending mode is still = Luminosity, but the bright spot is substantially darker. Or you can if the used blending mode is = Multiply. If you want the brightest area as colored you cannot have full white in the gradient. The white area can present a gloss which is too bright to be shown as colored in the RGB system. You can as well have the colored version on top and let it have blending mode = Color. Let the grey version have blending mode = Luminosity.
Place (align or have point snaps ON) the grey version above the colored version. Make also a duplicate of the circle and fill it with solid color: The older revisions are readable and the comments are valid for before 2021 versions.ĭraw a plausible greyshade sphere by applying a radial gradient to a circle. In addition Inkscape 1.0 works a little better than older versions. This answer is rewritten because it contained much clutter which was gradually fixed due the given comments.
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