Is this a section? there is nothing supporting the joists in the open space on the right side. its a nice render but that building would collapse.

Hi, Thanks for pointing that out. Actually there are beams running over the columns and there are chairs on the upper floor of both buildings. They should be visible but I wonder why they have not rendered. They were extruded lines to suggest the shapes intstead of actual objects. I used scanline rendering.

You're getting better all the time. You might want to check to see if your supports are visible or invisible. Likewise the chairs. I am not familiar with 3DS Max, but in most 3D modelers you can change the visibility settings. It may be called something like "hide object" or "visible or invisible". If the shapes are simple lines rather than solid objects they will not render. If the object is a 2D plane (i.e. a simple flat surface like a window pane, with height and width but no thickness), depending on its settings, it can be rendered except if it is one sided. In that case it will render when visible from some angles, but may be invisible from other angles and thus not render. If the object is a shadow catcher object it will not render except areas that are in shadow from another object. Also you may want to check the shaders of your chairs and beams that they are not set to transparency or some other thing that would make them invisible. Some renderers also allow you to render only certain objects in the scene, check the settings for your renderer that it will render all objects. Sometimes objects will not render or will not render properly if the normals are inverted. A normal is a mathematical idea. It is the imaginary straight line that runs perpendicular ( at a 90 degree angle) to a polygon. Now there are two possible directions that the line can go. Positive or negative. To explain this further, imagine that a table top is a polygon ( a polygon is a many sided flat surface, or a facet of a geometric figure) and imagine a straight line running through the table completely vertical to the tabletop. And the line has a direction associated with it, up (positive) or down (negative). If the line directions are going the wrong way, it will not render or render properly. Usually normals in a geometric object are positive or "up" and going away from the object. But sometimes some polygons can get mixed up and the lines can get set the wrong way. This frequently happens when you import objects from other modelers (because the importer knows the geometry of the object, but doesn't know which way the lines are supposed to go and so it just "guesses", but it doesn't always guess correctly. Try raycast rendering. These are some suggestions that may help. Best wishes. Yours, Switzart.

Thank Switzart, I found what happened to my chairs and beams, as you said only one side of an extruded line will render, and the way i'd modeled them was with the renderable side facing the other way. when rendered from the back the chairs and beams show up nicely. :-). Thanks for all the tips

Very nice modeling work.