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jed

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Everything posted by jed

  1. jed

    The Tardis

    Needs a few Daleks
  2. There's some XPresso stuff in the forum tutorial section, also checkout Chris Schmidt at GreyscaleGorilla eg here. I made a couple of tutorials a while back about steering and driving dynamic cars using XPresso here.
  3. The points are global co-ords. I've been using XPresso for a few years, and you are correct - it does add an extra dimension to C4D. Once you've learned a bit of XPresso, the next step is Python . . .
  4. The point position ports are data type vector (XYZ), but you can 'intercept' the connection using vector2real, add on some offset, then convert back to vector using reals2vector. is this what you had in mind ?
  5. It's just a bit of math. Output lower is 1.14, output upper is 2.9 - these correspond to 0 and 1 on the RM Y axis. That leaves the 1.8 value, which is (1.8 - 1.14) / (2.9 - 1.14) = 0.66 / 1.76 = 0.375 so 0.375 on the RM Y axis corresponds to your 1.8 https://www.dropbox.com/s/mqkdy2psn2h16w5/rmapspline.c4d?dl=1 you'll have to tweak the spline handles to suit
  6. Just swap the objects around. You're going to get some distortion snapping mesh points to a spline - I reduced the number of segments in this plane In this file I disabled the XPresso, drew a spline 'up in the air', entered the mesh point IDs nearest the spline points, re-wired the XP and enabled it. Is this what you had in mind ? https://www.dropbox.com/s/qxoeo5qu2qaqehw/reviteratepoints.c4d?dl=1
  7. Can you be more specific - why not just use collision nodes ? re lambda in above script, It's a new one for me - still not sure how it works, but I also found a similar method itemgetter that can reference the 2nd element of a tuple as a search criteria. Need to import the module - import c4d from operator import itemgetter def main(): mylist.sort(key = itemgetter(1)) # ascending sort mylist.sort(key = itemgetter(1), reverse = True) # decending sort
  8. I think this works - not sure how, just pasted some code I found online. It takes the Y position of 5 cubes, sorts lo-hi and outputs the cube names as string. import c4d # sort cubes by Y position lo-hi # cube name output as string def main(): global Output1, Output2, Output3, Output4, Output5 mylist = [('cube1', Input1), ('cube2', Input2), ('cube3', Input3), ('cube4', Input4), ('cube5', Input5)] mylist.sort(key=lambda tup: tup[1]) # sort list of tuples by 2nd element lo-hi Output1 = mylist[0][0] Output2 = mylist[1][0] Output3 = mylist[2][0] Output4 = mylist[3][0] Output5 = mylist[4][0] https://www.dropbox.com/s/pip4h9g0ef40us8/mylist.c4d?dl=1 not very elegant, but some ideas for you.
  9. Rather than hierarchy, it might be simpler with an object list and a link list. In this snip the Object Index gets the index of each matrix (0, 1, 2 ...) then references a spline and connects it. The situation is a bit confusing because the specimen Matrix has 2 ports called object - one selects the object and one is the data field - so I renamed the 2nd.
  10. If it's only a couple of splines with a few points, you could iterate through a condition node with the mesh IDs as data. https://www.dropbox.com/s/e9y40dlolb3hews/iteratepoints.c4d?dl=1
  11. Not sure what you mean by connect, but if you wanted to move a spline point to the xyz of a mesh point using point nodes it would be where the point index ports reference the point ID numbers as per structure manager - 0 is 1st spline point etc. Problem is, the corresponding mesh points are not going to be 0, 1, 2 . . .
  12. I can't run your file due to not having the plugins, but things I'd try : lower bounce (maybe to 0), one collision per pair, use a compare > 0 on the count.
  13. You don't really expect me to understand what looks like 5,000 interconnected nodes ? If you really need to reference all those images with what seems to be sequential conditions ( == 2, ==3 etc) I suggest you use iteration. You could probably get the filenames with string concatenation.
  14. It's not very clear how you want to connect up the sliders in your scene. Maybe you could explain it a bit better and post a c4d file. You do realise that percent sliders are 0-1 decimal in XPresso ?
  15. XPresso is quite flexible with data eg an int or float '1' can be interpreted as a bool true or even the string character '1'. This can get you into sloppy habits that throws up errors when writing code eg Python is often quite strict with data types - I'd imagine COFFEE is also strict.
  16. I'm not a COFFEE user (I use Python), but AFAIK in some programming languages you have to declare variables before they can be used - int, float, bool etc. Maybe this is what the error message means. In Python, you just use vars without declaration. Switching between sliders (or whatever) in XPresso sounds like a job for the condition node, where the switch input selects which of the inputs is routed to the output. The default data type is real, but can be changed to almost anything eg color, material, object etc.
  17. Python has a ton of string formatting, here's a simple way to pad with '0' def main(): global X X = format(num, '.2f') X = X.zfill(6) 1st line rounds num to 2 decimal places and converts to string, with any trailing zero(s) 2nd line pads string from left with zero to max length 6 chars incl decimal point so 2.5 outputs 002.50 etc https://www.dropbox.com/s/gluudv9bca3ndew/zeropy.c4d?dl=1
  18. There's a few ways, but here's my take, treating the number as a string. I used an XPresso preset to get 2 decimal places (with zeros), then used the string length to add the correct number of leading zeros. https://www.dropbox.com/s/ms77ebv9fmkpil1/zeros.c4d?dl=1
  19. maybe start a new thread on that
  20. I've just noticed you're on R14 - I'm on R18, but I don't know if this could make your Python act differently. I don't get this - are you checking for actual errors in the console ? empty lines don't seem to cause me any errors - look in console doc.SearchObject is designed to look for objects by name, if you really must have multiple objects with the same name you can use obj = doc.GetFirstObject() obj = doc.GetFirstObject().GetDown().GetNext() etc where down and next have same meanings as per iteration nodes (but this could break if you move stuff around). You can also link to an object in the hierarchy, and use down, next from there. Although I don't use it, I think op refers to the object a Python tag is on in the hierarchy ie if instead of using a XP Python node, you had all your code in a Python tag on a cube, op would be that cube. if the node input ports had different variable names, should be OK. I think I'd find it confusing having a lot of objects with the same name. I use C4D's renaming function and AutoRename from here to bulk name stuff eg thing.01, thing.02, thing.03 etc. The code thing is one of the buttons alongside Bold etc. Will read other questions and get back to you later.
  21. This makes a cube visible when link is present https://www.dropbox.com/s/arqibkx1hi8p7hb/linktransfer2.c4d?dl=1
  22. I think this does it, link is python node input from Null A link (ie Null B) import c4d #Welcome to the world of Python def main(): null_A = doc.SearchObject('Null A') if link: link[c4d.ID_USERDATA,1] = null_A[c4d.ID_USERDATA,2] link[c4d.ID_USERDATA,2] = null_A[c4d.ID_USERDATA,3] link[c4d.ID_USERDATA,3] = null_A[c4d.ID_USERDATA,4] I used if link because get yellow node error if no link present https://www.dropbox.com/s/uqrkqtyt64bjlna/linktransfer.c4d?dl=1 no guarantees - I'm also a bit of a Python novice edit - to get the correct userdata syntax, I just typed in null_A and dragged the relevant name in from the GUI.
  23. Here's a rangemapper with this ease-ease spline - the spline represents input as X 0 - 1, and output as Y 0 - 1. You make points by ctrl-click - make sure start, end are on 0, 1 etc. Upper and lower must be clamped, or RM will calculate an output when outside the range. I used frame, but I think secs would also be OK https://www.dropbox.com/s/489z0asxthr9nl6/easemapper.c4d?dl=1 edit: just ease in, starts at 0 https://www.dropbox.com/s/sqcvar61wgg92yh/easein.c4d?dl=1
  24. Yes it would be useful - that's what the rangemapper is. Can you explain the difference between what you are describing and this - utils boxstep does this in Python, or you could write your own with if, elif, else etc but that is just re-inventing the wheel.
  25. I'm still not sure why XPresso rangemap doesn't do what you want - it has spline control. There's a Python equivalent Boxstep and an eased version Smoothstep - both map to 0 - 1 details (utils clamp just clamps). I noticed your Python maxoutput is 100 - you do realise that 0-100% for spherify (or anything) is actually 0-1 decimal ? Also GetActiveDocument is not required since doc is a built-in variable.
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