Drawing
Problems
-
Chapter
17
516
AutoCAD and Its Applications—Advanced
Copyright Goodheart-Willcox Co., Inc.
Drawing Problems
1. In this problem, you will draw some basic 3D shapes to create a building similar
to an ancient structure, place lights in the drawing, and render the scene with
shadows.
A. Begin a new drawing and set the units to architectural. Save the drawing as
P17-1.
B. Draw a 32′ × 22′ planar surface to represent the floor. Using the materials
browser, attach a material of your choice to the floor.
C. Draw cylinders to represent pillars. Make each ∅2′ × 15′ tall. There are 10
pillars per side. Attach a suitable material to the pillars.
D. The roof is 32′ × 22′ and 5′ tall at the ridge. Attach an appropriate material.
E. Create a perspective viewpoint looking into the building.
F. Turn on sunlight and turn off the default lighting. Set the geographic location
to Athens, Greece. Change the date and time to whatever you wish. Make sure
the sun is set to cast shadows.
G. Render the scene.
H. Save the drawing.
2. Using the drawing from Problem 1, you will experiment with different lighting
types.
A. Open drawing
P17-1
and save it as P17-2.
B. Turn off the sun.
C. Place three point lights inside of the building. Evenly space the lights along
the centerline of the ceiling. Adjust the light intensity so that the interior is
not washed out. Set the color of the middle light to white. Set the color of the
outside lights to red or blue. Render the scene.
D. Turn off the point lights.
E. Place two spotlights, one pointing from the front corner to the rear corner and
the other pointing between the pillars on the left side of the building. Target
them at the floor. Render the scene. Adjust the intensity, hotspot, and falloff as
needed.
F. Turn the point lights back on and render the scene with all six lights active.
Adjust the light intensities again if the rendering is too washed out with light.
G. Save the drawing.