André Irniger
Forum Replies Created
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[Olly Lawer] “Only trouble is I have a tight turnaround and I often don’t know exactly what I want until I ‘see it’, which makes a custom product difficult.”
Hy there,
well, most people (including me) don’t know exactly how it will look at the end, normally you just have a slight idea in which direction it should go or you got idea about the content but you are not yet sure how to deliver the message. But the good news is, as soon as you start visualizing things (ie. the 3D guy creates some first impressions), you suddelny get ideas based on what you see. Most of my projects start out with an idea and end with a slightly different one, nearly always the changes come from the customer, seeing something he liked very much. So for me, the idea is just the starting point of a creative processs …
Cheers,
André -
[Philip Makarevich] “Well the first option sounds easier enough but don’t i need to configure it in terms of color ? like keying or he automaticly masking the background and it dosent work on colors”
Yes, it is not based on colors. I guess you are used to work with compositing software.
If you work in 3D you have a big advantage: there is no need for keying. Because the renderer knows what pixels of an image belong to an object or not. So, the renderer can *include* this information into the image either with an alpha-channel or an object buffer.
[Philip Makarevich] “and my file is like 15 seconds long in 720p how much space would it take ?”
That is hard to say, depends on how much information each frame carries.
[Philip Makarevich] “but i havent worked with OpenEXR and half of what you said was chinese for me :P”
OpenEXR is just another file format for images like TIFF/TGA .. but it has superior capabilities, like ZIP compression. You can work with OpenEXR like with any other image file.
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Yes, it can have an alpha channel if not compressed (maybe some of the codecs too). So just tick “Save Alpha Channel” in the Render-Setting under Save. There you also have the format that you render out, in your case an AVI. So click the Options on the right and say “uncompressed”.
But I recommend not to go this way. Your AVI file will become huge. It is better to export for example as OpenEXR sequence with enabled ZIP compression. You get (if you choose so) 32-Bit per channel (more information as in your avi, 8 bit per channel) and you will get smaller size overall. OpenEXR can be handled by any decent compositing program. 32-Bit will give you more degrees of freedom with handling exposure in compositing.
Cheers,
André -
Hy there,
it depends on how realistic the simulation should become. If it is a closeup and the water and the splashing is really the essence, you will need a simulator. There is for example DPIT Effex which can do this (for a decent price and is a C4D integrated solution). To get the most out of it, there is Realflow. But maybe a bit oversized for your need :-).
If the shot is not that of a closeup, you can start trying to simulate it without a real water simulation. For example with paricles that you put into a Metaball and apply a water texture. Or you could use TP and a nice motion blur. But here you try to get as close as possible to how water would react. You are the simulation engine ;-).
So this needs quite some work in order to look good.
Cheers,
André -
Hello,
here you got a starting point. You see two cloners, one for the initial Cubes and a second one to create the holes. Now, I controlled the “hole” sizes with a random effector.
[Daniel Herz] ” So I would get identical tiles (the cube objects) with holes of differing sizes, where the sizes of the holes recreates an image file. Something similar to a halftone raster. Possible?”
Most probably you can achieve this with the Shader Effector instead of the Random effector.
Cheers,
André -
Hy there,
really simple: just render out the Alpha channel. Like that you got a perfect mask, no need for keying.
Another way would be to add an object buffer with a Compositing Tag. This would also give you the perfect mask. This is necessary if you have a Sky or something that would fill up your alpha.
Cheers,
André -
[Ross Russo] “Thank you for your answers. My question is that I don’t want a clone or a trace of the object”
You don’t get a clone with the tracer, its really just tracing whatever you give to it. In the case of your sphere, it is not necessary to trace each vertex/edge.
[Ross Russo] “So, if I have a sphere that moves along a spline, I would like to simply add a little trail to it.”
Yep, that is exactly what it does.
[Ross Russo] “I tried to use the Sweep NURBS and the MoGraph trace tool as you suggested, but it clones the object with an enormous load for the CPU.”
The load is in your hands. It depends how you set the options on the NURBS and the tracer. You can have just 1 single line following your sphere for example. Therefore just put a Null object onto your sphere as child and put it in the middle of the sphere (and let the Tracer just trace the Null). Then you just get 1 line. Also, use a really simple form to trace, like a square (not a 24 segment circle).
Cheers,
André -
Hy there,
have you got MoGraph? There you can find the Tracer object, which I think can do what you need. It will create splines from a given object by tracing vertices (many options), so in order to render it out you need to put it into a Sweep-NURBS for example.
Cheers,
André -
>> What do you mean by formatting the COFFE output, you mean if you want >> to setup the txt file in your own way?
Yes, exactly. I am sure COFFEE also has some string-formatting functions that I didn’t look up yet. With those you could output in whatever format you like.
Cheers
André -
Hy there,
In case you are interested in how one could write such a piece of COFFEE, I attached a simple file I created once.
It writes the frame-number, global position/rotation to a file. The output is pretty much unformatted, but with this skeleton, you can print whatever you want and you could also add commands to format it in COFFEE if you like. I normally do the formatting of the COFFEE output by a java/python script.
Cheers
maxx1466_coffeewriteobjectdatatofilebymaxx.zip