Search found 126 matches
- Fri Jan 30, 2009 8:53 pm
- Forum: Materials
- Topic: how to make a laser?
- Replies: 74
- Views: 29358
you know, that's actually NOT what you'd want. you'd actually want a lightsource, emitting on the whole (parabolic) mirror, to get a wider beam PLUS less wideing (namely, if it's a pefect parabola, ZERO) :) I did it already, exactly as you describe. See the bottom of page 2 of this thread and the t...
- Wed Jan 28, 2009 6:11 am
- Forum: Materials
- Topic: how to make a laser?
- Replies: 74
- Views: 29358
Oh, okay -- you're using a lens-based collimator. When you said "collimator" I was thinking of the sort used for x-ray beams -- a tube with a grid in it (see http://upload.wikimedia.org/wikipedia/commons/5/52/Collimator.jpg). My concern with that was, of course, that most of the light would be absor...
- Tue Jan 27, 2009 7:41 am
- Forum: Materials
- Topic: how to make a laser?
- Replies: 74
- Views: 29358
Well, yes -- Indigo can't simulate the quantum effects that give rise to a laser, and it can't tell the difference between a coherent beam and an incoherent beam. It only keeps track of the intensity and wavelength of the light it's simulating, not the phase. If you were to make a lasing cavity in I...
- Tue Jan 27, 2009 5:30 am
- Forum: Materials
- Topic: how to make a laser?
- Replies: 74
- Views: 29358
Well, the major difference between a flashlight and a laser is the coherence of the laser beam, but of course Indigo doesn't simulate that. The other difference is that the light source in a flashlight is not at the focus of the mirror, so there's spread in the beam. A collimator would make it MORE ...
- Tue Jan 27, 2009 5:19 am
- Forum: Materials
- Topic: how to make a laser?
- Replies: 74
- Views: 29358
You could do that. I suspect it'd be more computationally wasteful though, just as in real life you'd waste more photons. With a collimator, you're basically throwing away any photon that's not going in the right direction to begin with. The advantage of the parabolic mirror is that it redirects the...
- Tue Jan 27, 2009 4:28 am
- Forum: Materials
- Topic: how to make a laser?
- Replies: 74
- Views: 29358
You're quite right, and in that case, you just need to move the emitter slightly closer to the parabolic mirror. Alternatively, you can make the emitter a little bit larger. As it stands, this beam will spread out a little bit because the emitter isn't a perfect point. The defining feature of a lase...
- Fri Oct 24, 2008 8:17 am
- Forum: Indigo News and Announcements
- Topic: Indigo 1.1.13
- Replies: 33
- Views: 19907
- Sat Sep 06, 2008 1:38 pm
- Forum: Off Topic
- Topic: Indigo in the Journal of Molecular Biology
- Replies: 2
- Views: 2549
- Sat Sep 06, 2008 10:41 am
- Forum: Off Topic
- Topic: Indigo in the Journal of Molecular Biology
- Replies: 2
- Views: 2549
Indigo in the Journal of Molecular Biology
I've got a paper that will be appearing in the Journal of Molecular Biology soon. Fig. 1 shows the structure of SOD1, the protein on which I work, and it was rendered with Indigo 1.0.8. The accepted manuscript is now online, and the final version of the paper should be out before long. Here's the li...
- Thu Aug 28, 2008 11:55 am
- Forum: Works in Progress
- Topic: The Deeps
- Replies: 8
- Views: 5418
- Thu Aug 28, 2008 7:14 am
- Forum: Works in Progress
- Topic: The Deeps
- Replies: 8
- Views: 5418
Thanks, folks. The 1600x1200 version is the highest resolution available. I'm not selling it, though you can download it freely for personal (i.e. non-commercial) use from this website (it's currently in the "New Artwork" section) or from my deviantART page (http://vmulligan.deviantart.com). If you'...
- Mon Aug 25, 2008 5:39 am
- Forum: Works in Progress
- Topic: The Deeps
- Replies: 8
- Views: 5418
Very woaw image, and heavy :) TopMod ? Thanks! No, I modelled this in Wings 3D and tweaked it a little bit (and did the UV mapping) in ZBrush. There's a smoky texture on the object baked in Maya 7, and final scene setup was done with Softimage XSI 6.5. (I know it's weird to own both Maya and XSI, b...
- Mon Aug 25, 2008 5:21 am
- Forum: Works in Progress
- Topic: The Deeps
- Replies: 8
- Views: 5418
The Deeps
Here's a work-in-progress piece that I've got rendering on four different computers at the moment (a total of seven cores). The scene uses a parabolic mirror to get parallel rays coming from above. To keep the shadows soft, I used a medium-valued Phong exponent on the parabolic mirror so that not al...
- Sat Aug 23, 2008 5:22 pm
- Forum: Indigo News and Announcements
- Topic: Indigo 1.1.9
- Replies: 72
- Views: 33137
- Sat Aug 23, 2008 4:46 pm
- Forum: Indigo News and Announcements
- Topic: Indigo 1.1.9
- Replies: 72
- Views: 33137
v_mulligan I've had the same problem. (Using Blender/Blendigo.) The problem occurs when I use "Set Smooth" on a mesh (not sure what the setting is in SoftImage). The only way I could work around it was to turn off "Set Smooth" and increase my number of subdivisions. What happens if you UV Map a pla...