• Maxon Cinema 4D

  Expert opinion required – newbie trying to wipe on a flat shape – and baffled!!

  Posted by Darryl Hansard on July 31, 2008 at 9:31 am

  Hi,

  I have an illustrator spline. It’s best described as an elongated ‘tear’ (as in crying tear) shape that curves. What i need to do is reveal/wipe it on whilst perfectly maintaining the curved end as it grows. I’ve tried rotating a boolean to reveal but it seems impossible to maintain the curve as it reveals. I’ve tried to utilize Sweep NURBS but that just wipes the edges of the shape on, not the solid shape gradually as a whole. I’ve also tried to scale and rotate but that doesn’t give the desired effect.

  Please can anyone please help me here? I’d really appreciate it. If it was in After Effects i would use mask keyframes but C4D is fairly new to me.

  Thanks in advance.

  D.

  Darryl Hansard replied 18 years, 1 month ago 3 Members · 6 Replies
• 6 Replies

• 

  Randy Johnson

  July 31, 2008 at 12:02 pm

  I would try to animate a gradient in the alpha channel.
  https://www.randyarchy.com/alphamask.c4d.zip
  /Randy
• 

  Brian Jones

  July 31, 2008 at 1:59 pm

  I’m guessing since I don’t know what kind of wipe you are after, which end starts being revealed first or is it like that at all… if you are revealing one end to the other but are trying to maintain the length of the sides from the tip as equal (or at least proportional) try using a sweepNurb as the boolean cutter. That way you can set up the spline to curve with your tear shape and it might work.
  If that’s not what you meant we’d likely need more info on what you are looking for.
• 

  Darryl Hansard

  August 4, 2008 at 9:53 pm

  Thanks Randy – appreciated and i’ll possibly do it this way. Didn’t know you could do that. I need the object to be flat though. Here’s a few frames from photshop to illustrate better what i’m trying to achieve:

  https://www.thingsmove.com/example.jpg

  Previous to frame 1 the shape was zero scale.

  Cheers.
• 

  Darryl Hansard

  August 4, 2008 at 9:56 pm

  Hi Brian,

  Here’s an example of what i’m trying to do.

  https://www.thingsmove.com/example.jpg

  Previous to frame 1, the shape was at zero scale.

  Cheers.
• 

  Randy Johnson

  August 6, 2008 at 7:53 am

  Can you not achieve this by simply moving the axis to the top right and animating the scale?
  /Randy
• 

  Darryl Hansard

  August 6, 2008 at 12:35 pm

  Hi Randy,

  No, it doesn’t seem to work like that, i’ve tried. I placed the axis at the pointy most bit and tried to scale it up/wipe it on/rotate as it did so. Really tricky and didn’t look convincing.

  Cheers anyway.

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