CompuServe Thread

#Material Morph Hates Me

11 messages in this thread
#178766From: Scott SalmonJul 6, 1995 6:24 PM
I'm trying to morph an opaque material to a transparent one. The two objects are identical otherwise (copies of eachother actually). At the peak of the morph, I get transparent bands of material in an otherwise opaque object. Any suggestions. I've tried a bunch of stuff, but basically did everything I found in the manual. I'm sort of new to 3ds so if you can help me, speak english. Thanks- Scott P.S. 3ds 4.1 (I think)
#178770From: Phillip L. MillerJul 6, 1995 6:43 PM
Is the transparent morph target hidden? What do you mean by the "peak" of the morph? Also, set the morph key's continuity to 0 (in Key Info) to avoid any overshoot that may be occuring. – Phil
#178852From: Scott SalmonJul 7, 1995 8:33 AM
Phil- <Is the transparent morph target hidden?> In the key framer, yes. In the 3d editor, no. <Also, set the morph key's continuity to 0> Did that. <What do you mean by the "peak" of the morph> Sorry, that was unclear. The effect is aparent throughout the morph, it is most obvious when the material is supposed to be completely transparent. The object was created in Acad R13 and has a fairly fine mesh. The object is essentially a piece of square tubing with a hole punched in the side. The band of transparent occurs below the hole, wher the triangles of the mesh meet the hole. Even though the same mesh occurs above the hole, that area remains opaque. I don't know if this has any bearing, but, I gave up on the morph and tried to animate the thing with out the morph. My column rendered as matt black instead of glossy blue in the animation even though the preview and any single rendered frame shows the correct material. Any thoughts?? -Scott
#179268From: Mike GilleyJul 10, 1995 11:15 AM
I've had the same problem. The object that I morph shows bands on the material. I can't figure out what's wrong with it. I've also had problems with the objects showing up as matte black instead of their assigned materials when I try to render the animation. It's fine when I render a single frame. I've also had problems with the lighting. On the first frame of the animation, the lighting is fine. Then throughout the animation the lighting slowly goes darker, sort of like fading to black. Any thoughts would be appreciated
#179431From: Scott SalmonJul 11, 1995 8:17 AM
<<I've had the same problem… Any thoughts would be appreciated>> I haven't gotten any answers here yet, nor have any of the things I've played with changed anything, but I'll let you know if I ever figure it out. -Scott
#179440From: Jeremy Hubbell [Adesk]Jul 11, 1995 9:25 AM
<< Then throughout the animation the lighting slowly goes darker, sort of like fading to black. >> Do you have any other keyframes for the lights other than at frame 0? Check Track Info to see if you've created any other keyframes for those lights in your animation. Jh
#179338From: Forcade & AssociatesJul 10, 1995 4:40 PM
>> I'm trying to morph an opaque material to a transparent one. The two objects are identical otherwise (copies of eachother actually). At the peak of the morph, I get transparent bands of material in an otherwise opaque object. Any suggestions. I've tried a bunch of stuff, but basically did everything I found in the manual. I'm sort of new to 3ds so if you can help me, speak english. Thanks- Scott P.S. 3ds 4.1 (I think) << Does your transparent material have any shininess? You could be seeing some specular highlights. Terry Gilbert Forcade & Associates
#179430From: Scott SalmonJul 11, 1995 8:14 AM
<<Does your transparent material have any shininess? You could be seeing some specular highlights.>> The bands of material differences are very disinct. The object is a square column with radiused corners and a hole punched in the side. The bands start and stop crisply at mesh lines. Probably a useful effect for some situations, but not what I need. -Scott
#179488From: Forcade & AssociatesJul 11, 1995 1:39 PM
>> <<Does your transparent material have any shininess? You could be seeing some specular highlights.>> The bands of material differences are very disinct. The object is a square column with radiused corners and a hole punched in the side. The bands start and stop crisply at mesh lines. Probably a useful effect for some situations, but not what I need. -Scott << If you have been doing booleans, the smoothing groups could be invalid. There could also be subtle differences in the orientation of the faces that could pick up difference highlights if the material has shininess. Terry Gilbert Forcade & Associates
#179512From: Scott SalmonJul 11, 1995 5:25 PM
Terry- <<If you have been doing booleans, the smoothing groups could be invalid. There could also be subtle differences in the orientation of the faces that could pick up difference highlights if the material has shininess.>> The object was created in AcadR13. The smoothing groups appear to be valid, at least they follow what I would have done if I were smoothing it. The differences between transparent areas and opaque areas are very sharp and occur on flat surfaces where a highlight would be uniform. I may try recreating the object and bringing it in again. -Scott.
#179588From: James Coulter[Mindscape]Jul 12, 1995 1:50 AM
Try this for fun. Assign both objects a 100 % shininess map using a pure black .TGA image. If that works, play with that idea until you get the transition you want. — James — Choreo Motion —