tom10

Does anyone know if you can import a jpeg into cinema 4d and have if fade into the scene within an animation? Basically, I want a jpeg image to fade in gradually whilst I have a moving object in front which I have modelled in cinema 4d. I understand the basic fundamentals of animation and how to make the object move etc, ive just not sure if you can merge a jpeg image into the background and have it gradually fade through. If anyone can provide any information I would greatly appreciate it.

Kind regards

Tom

gdrakakis

hi,
i am sure that other users will come up with many solutions
(depending on what you are after for), but a simple way to do it is to animate the brightness values in case you have load it in the color and/or luminance-transparent channel.
hth,
george

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Frosty

Or render the animation with an alpha channel and do it all in post.

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tom10

alpha chanel? what is this? sorry i am not to familiar with all the aspects of cinema 4d. i only recently switched to the software.

regards
tom

BillyElNino

You can stick the .jpeg as a texture on a plane, position it where you want then add a DISPLAY tag. You then animate the percentage of visibility with keyframes within the tag. You can see where I have keyframed it below and the icon for the display tag. To keyframe the visibility you can either hold shift and left click on the little circle or right click, animation, add keyframe.

So as an example you keyframe it at 0% on frame 1 and 100% on frame 500 for it to fade from nothing to full over 500 frames.

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Frosty

William, that sounds the simplest. I remember trying that about 4 yrs ago and it was impossible. Display was either on or off with no transition. Maybe that has been corrected in newer versions.

Tom, an alpha channel has nothing to do with which software you are using. EVERY 3D app should be able to render with an alpha (transparent) background. Are you new to 3D in general?

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www.crucialperception.com

BillyElNino

As long as you keyframe the visibility percentage and not the 'use visibility' then you get the required fade...

tom10

Hey thanks for your reply guys. yes i am new to 3d.

Will, i tried your advice. do i need to carry out the render to see the results because at the moment when i press play the jpeg image goes from 0 to 100% instantly, and not gradually. maybe i am doing this wrong or perhaps i just need to carry out the renderd animation to see the outcome.

secondly. do you know if this is possible to fade the image from left to right?

thanks for all your help. i really do appreciate you taking the time to provide me with advice. i am new to animation and to cinemA 4d so thank you!

cheers all

tom

tom10

i have got the image to fade in. works great! cheers will. just trying to figure out if i can go from left to right now. any suggestions please!!!

thanks again for all of your advice

kind regards

tom

BillyElNino

What you are trying to do with the left to right fade does not need the display tag function, what I would do is load your texture into the color channel then activate the alpha channel. In the alpha channel select Gradient in the texture box, if you then click where it now says gradient you can then keyframe the black and white of the Gradient in the alpha to animate how much of the image is faded out and when. The Alpha will work by overlaying a black and white image (or percentage of black and white like the gradient) over your image and the black (or the white) parts are then removed from the image by the program.

It might take some experimentation but with a few goes you should be able to tackle it. Alpha channels are a key part of architectural visualisation and you should investigate them further, for animations and still images they are very useful.

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