Digital Art Zone

download and manual here—-> https://sites.google.com/site/mcasualsdazscripts2/mcjcolliderds45

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version history

2012 Nov 30th - initial release
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my first ds4.5 plugin, yay,

for a few years there has been a plugin for DS3/PCWIN named mcjCollider,

it’s more a service than anything

you select target objects in your scene and add an mcjCollider in the scene,

it looks like a white ray

you point the ray at the target object(s)

activate the mcjCollider

and it very quickly jumps to the surface of the target object

the ray is also oriented as if it had bounced on the surface

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in expert hands, or with the help of a script, could do interesting things

like fix poke-trough issues !!!

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soon the version for DS4.5 will come out

in fact it already seems to work, as shown below

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Very nice sir…

Wondering if this might work on my ParticleFX and Genesis or other things…?

Interesting!

foleypro - 04 November 2012 08:39 AM

Wondering if this might work on my ParticleFX and Genesis or other things…?

next , i’ll do a test on the basic Genesis

i’ll publish the source code, so if your programmer wants to include collision detection, it could help

the mcjCollider node could also be “remotely operated” by your plugin

test results, it works on Genesis figures

i selected the torso nodes of the Genesis figure

and created an mcjCollider node in the scene

i pointed the mcjCollider ray at Genesis

i ran this script

and the mcjCollider node jumped on Genesis and oriented its ray as if it had bounced (like a mirror bounce)

the collider node communicates it’s collision results using the label of a parameter named “report”

usually this result should be of the format

skeletonName / boneName / polygonType / facetIndex

polygon types: 0 = triangle, 1 = quad

so there’s a problem to fix, here

it should be something like “genesis abdomen 1 22988”

in Stephanie (V4 based) collisions also work
but i have to better understand how the new DzFacetMesh work
and how the skeletons/bones work under DS4.5

Freakin awesome…

Well if you do give me the script I will give it to Vasily and he can incorperate into the plugin and you will get credit for the script…And I will send you ParticleFX DS 4.5 with a serial code that will expire in 9999 years…

Genesis wearing a tube created using mcjCollider, mcjTransport, setInterpolation and the script below

using a Null, i animated the camera rotating around Genesis, while going down, the collider was parented to the camera

the script repeatedly “shoots” an mcjCollider at Genesis and moves the object named ball0 to the hit position.

this animated ball is then used to make a 512 segments tube using mcjTransport

DS4.5 is quite different from DS1,2,3

i think mcjCollider for DS4.5 is almost ready,

but i want to add functionality that will later make it usable for 3d painting

i used the following code and the setup shown so project a cyan ball onto Genesis

the second image is the view from the camera in the first image

Looking good…

Could it possibly eventually be used to create a mesh deformation brush or a displacement brush as well?

(Zbrush like capabilities inside DAZ Studio? The mind boggles.)

RKane_1 - 05 November 2012 07:30 PM

Could it possibly eventually be used to create a mesh deformation brush or a displacement brush as well?

(Zbrush like capabilities inside DAZ Studio? The mind boggles.)

i made a plugin like that named mcjWarp for DS3
http://sites.google.com/site/mcasualsdazscripts/mcjwarp-plugin-for-ds3-pc

i will possibly make the DS4.5 version this winter

and hopefully, add ‘undo’ functionality to it

as some script-writers may know,
we currently cant get the DzFacet’s values ( indexes to vertices, normals, UVs ) using a script

So the mcjCollider node will include a function to do just this

example of the script to get facet[3] of the cached geometry for the node named sphere

the primary selection is the collider note

the result is of the form
m_faceGroupIdx, m_materialIdx, m_vertIdx[0], m_uvwIdx[0], m_normIdx[0], m_vertIdx[1], m_uvwIdx[1], m_normIdx[1] . . .

which will make possible the upgrade-to-DS4.5 of some really neat scripts like, for instance, mcjSpikey

i had to study barycentric coordinates

The collision detection uses the Moller-Trumbore algorithm

Fast Minimum Storage RayTriangle Intersection

... and the new version of mcjCollider ( for DS3 and DS4.5 ) will report the UV coordinate of the hit point

so this fall or winter i’ll probably write a script or a plugin to do 3D painting!

in the image below, i painted a cross in Paintshop, at the UV coordinate reported by mcjCollider

and it fits !