CompuServe Messages

#Render Cubes

    11-Jun-95 13:35:36
Sb: #Render Cubes
Fm: Wayne Leong 74730,3611
To: Jonas Ruikis [ADESK] 73172,1351
Jonas, I am comparing the capabilities of 3D Studio 4 with that of a traditional hand renderer and photography. The exercise involves rendering 4 cubes. In the 3D Editor construct 4 cubes. Place 3 cubes on a base adjacent to each other to form a corner or right angle. Place the 4th cube above the corner cube to form a triad of cubes. Place a camera at 45 degrees to the cubes so that the picture plane is 45 degrees to the cubes. Only 3 cubes will be visible. Place a spot light so that the lighting is parallel to the picture plane. The exercise is to change the material of each cube and compare the rendered image to a similar photograph and hand rendering. With all the cubes being opaque the tone of the shading and shadows are comparable to both hand rendering and photography. With ray tracing shadows, 3D Studio does not start the shadow at the corners of the cubes. Instead there is a little offset which implies that the cubes are not all touching but somehow offset from each other. I can live with this problem but I would like to figure out how to cast the shadows correctly so that the shadows originate from the corners. The real problem I am having is with assigning a reflective material to the cubes using the automatic reflection mapping. The reflective cubes to not show the reflection of any of the adjacent cubes. Instead the cubes appear to be opaque. When I use the Render/Setup/Make.CUB command it makes all the six reflection maps and they seem to be correct. These reflection maps never appear on the cube with the reflective material. I'll try and upload the project file so that you can render it. I'll call it WAYCUBE.PRJ. I would appreciate your help in this exercise or pass it on to someone who would be interested in helping. It is important to me to make sure that 3DS 4 can render this simple project correctly. If it can't do this I would question what it does in more complex scenes. I need to show this work to the established Architectural rendering community to prove 3DS credibility. Thank you, Wayne