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Oskar-A — Biohazard
Published: 2012-09-22 13:27:36 +0000 UTC; Views: 970; Favourites: 13; Downloads: 59
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Description
Swimming not recommended.Modelled in Cararra 8.5.
A sand texture generously supplied by [link] .
Some other free rust textures by www.mayang.com. Some postwork in GIMP. I am usually not so much for postwork but it was difficult to get a polluted look without cheating abit and adding some beach garbage, a dea gull and some color to the bubbles. Cararra (like many renderers) doesn't do wavelength dependent refractive index.
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Comments: 15
Love the atmosphere of the background. The garbage is a very nice touch and the bubbles make it appear as though something just exhaled its last breath.
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Thanks. From your description I'd say just a typical day at the beach.
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"Unbiased" refers to a rendering technique that does not introduce any systematic error, or bias, into the radiance approximation. So light calculations are far more accurate than what is found in render engines that introduce some measure of error in order to "speed up" the result. With this in mind, most unbiased engines use materials that are also physically accurate (they almost need to be), so things like caustics, and in this case, dispersion of light, occur automatically, without the user having to really think about how to achieve those results. Simply put, if the material you are using in your scene would have a dispersion or caustic effect with it's equivalent in the real world, you can rest easy knowing it should/will also occur in the render, without much thought about how to set it up on your part.
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So I guess it comes at a price of unbearable slowness?
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Render speed would depend on your system. Most people who choose to render with unbiased render engines will specifically gear their computers for it; either using a network of decent computers with multiple cores, or by adding a powerful graphics card that may cost $300 or more (for render engines that use the GPU), or what have you. The GPU-based unbiased render engines are actually as fast or faster than some biased engines that run off the CPU. However, if you compare speed based on your current system, against your current render engine, then it will more than likely be far slower. The quality comes at a price, yes.
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OK, thanks for the clarification. I have a heavy duty system so if I can get it to work I may actually be able to use it.
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Very nice work Oskar, has real impact, and well done.
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Thanks, It is dawning at me that there should be rust streaks running down where moisture would collect though. Again, thanks for commenting.
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Looks okay to me, cannot get too carried away with self criticism or else we would be forever reworking the same pic over and over again, it is more fun to make new works and keep the creative juices flowing. I really like the realism of your work, good stuff.
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You might try to render 3 images, each with different IOR and combine them in post as described here: [link] This is the easiest way to have dispersion in image while using renderer that doesn't have this feature. That should instantly give you the quality you're looking for.
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Thanks, a very creative work-around.
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Good work on the modeling, and the overall image is quite striking. I know what you are saying about wavelength dependent refraction. You may want to try a physically accurate, non-biased render engine, like Luxrender or Octane (if you have a good graphics card) if you are interested in physically accurate rendering. Luxrender is what I use, specifically because it's unbiased GI and physically accurate lighting really makes an incredible difference in realism for many things, and it's also free. I don't think there is a plugin to export scenes from Carrara though, so it may not be useful to you after all.
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Thanks for the praise and thanks for the tip. I will take a look at Luxrenderer and see what I can do. Cararra can export in a number of formats so maybe something will work.
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Lux has it's own proprietary format, and most software requires a special 3rd party "bridge" to export to it. There's several plugins for software like Blender, 3dsmax, Poser, and even DazStudio. I know Daz owns Carrara, so maybe there's something.
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After some trying I have to give up. By the way, what does unbiased mean in this context?
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