light section system
hi guys!
I need your help, i try to make al laser triangle with a "point light" to display a laserline on an object. but i cannot change the geometrie of the point light it is always a cone.... :headbang: i hope you understand what i mean, i will try to make a picture of my problem when iam at home.... THX... ... this is a serious problem because i need this for work to make a small demonstration of a problem.... hope you can help me!!!! |
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i found an image
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Hi!
2nd Problem.... when is create a new spot light the light goes through the object which is placed in front of it... i used a standard spot light with intensity 4.132 cone angle 4.00 light Fog: lightfog1 fog spread: 2.232 fog intensity: 1.818 |
Under the lightshape attributes check the depth shadows box I think, and alter the number to suit, that should sort it out!
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thx!! - you're right i forgot the shadows...
added ray trace shadows rendered with mental ray now it works but there is still the problem, that i need a "triangle shaped light area". It should represent a spot laser with a cylinder lense which forms a trinangle.... The whole system is a light section system (laser and camera) for measurements (like in the picture attached in my 2nd post) i hope someone can help me solve this problem.... is it possible to change the shape of the spot light??? lg vietcong |
in photoshop make triangle (white on black) and map file to the lights color
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hmmm... sounds interesting - i will try this...
meanwhile i solved my problem like this: (1) polygon cube --> forming a trinagle (2) cutting out the "light" behind the object (3) reverse normals (4) deleting the "bottom side face" (5) now i have a line on the objekt which represents my laser line mfg |
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hey!
tried to change the topic name.... hmm :confused: ... whatever... i have new progress, i finished the laser-module... |
its simple 3d geometry
create a parabola and revolve it. place a spot light at the focal point pointing at the parabolic surface. make the parabolic surface 100% reflective I think i might go try that now... |
wait, I can't get it to work unless someone can tell me how to reflect light off a surface onto another surface
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reflections? or actual light, as you would illuminate something with a mirror
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the actual light thing
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you need to read up on reflective caustics with Mental Ray... do a google search on this:
caustics Maya mental ray reflection |
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thx for all your help and ideas!!!
there is an update... i started the camera (Basler A600) i will try the laser light thing when i finished modelling... |
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update :attn:
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