davidgibson opened this issue on Apr 13, 2004 ยท 22 posts
davidgibson posted Tue, 13 April 2004 at 1:04 PM
If you don't know TransPoser is a plugin for Carrara 3 that lets you inport Poser pz3 file to render in Carrara.
The attached picture is a piece of a V3 model rendered in Carrara using only the defalt light and done at a setting of 300dpi. It is much faster then Poser since Carrara is multi processor aware and I am using a dual 800mhz G4 Mac.
ronstuff posted Tue, 13 April 2004 at 1:13 PM
The hair transparancy and shadows are very nice, but the lips look like fingernail enamel and the skin looks like she is made of terra cotta. Perhaps this is the new Chia-Vicky!
mateo_sancarlos posted Tue, 13 April 2004 at 3:57 PM
So far, so good. Now use GI or HDRI and see how much better it looks than anything in Poser5, which is extremely crippled in both render quality and render speed, compared to Carrara. Tweak some of those reflection/shininess channels; Poser and Carrara handle them very differently.
martial posted Tue, 13 April 2004 at 6:46 PM
milamber42 posted Tue, 13 April 2004 at 7:41 PM
Attached Link: Carrara Render...
It does take some tweaking, but I really do like the results. And Transposer/Carrara could render and complete an animation that Poser 5 SR4 could not render to completion.ronstuff posted Tue, 13 April 2004 at 7:45 PM
MungoPark posted Wed, 14 April 2004 at 3:21 AM
Hi Ron, I always wondered how you did this - when I use the skin shader (and follow tutorials on this) texture detail disappear completely, no matter what I do. What shader did you use and what light ? What I found during experimenting is that skin shaders only work with but a few lights if you fake global lighting the skin shader will wash out the texture completely. Mungo
TrekkieGrrrl posted Wed, 14 April 2004 at 4:25 AM
Plug the skin shader in the alternate diffuse for a start :o) I've made some good pics with it (but typically they're on my home computer and I'm not...) - but I agree with Ronstuff, Poser 5's renderer is really GOOD! It just takes some time to learn and use properly! But so does carrara :o)
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MungoPark posted Wed, 14 April 2004 at 5:26 AM
Ernyoka - when I use your shaders from your very nice and informative tutorials, I have the same problem - hdri washes them out - what light do you use for it ?
diolma posted Wed, 14 April 2004 at 6:14 AM
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TrekkieGrrrl posted Wed, 14 April 2004 at 6:51 AM
Uh I think you're confusing me and Crescent? I have made some shaders but no tutorials. Crescent on the other hand has made both :o) I usually use Poser's default lights, but that's part lazyness, part forgetfullness L - I do turn off shadows for the 2 of the 3 lights though (at least when I remember it)
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You just can't put the words "Poserites" and "happy" in the same sentence - didn't you know that? LaurieA
Using Poser since 2002. Currently at Version 11.1 - Win 10.
MungoPark posted Wed, 14 April 2004 at 8:14 AM
Ok, I confused it it was kieras tutorial at http://www.enmeshed.com/shadermagic/
ronstuff posted Wed, 14 April 2004 at 11:29 AM
When we talk about things like rendering realistic human skin, we have to consider that human skin looks the way it does because of several factors including transluscency, moisture content, roughness, AND the most important --- lighting and the interaction between light and the skin - just ask any fashion photographer about the importance of lighting ;-) Now, in the world of 3D meshes, and Poser in particular, we don't have "real" lights that diffuse or bounce light around the scene or "real" skin to interact with it, so we take different approaches to simulate the look of it in a final render. One approach is to concentrate exclusively on the lighting and force that to generate something close to realistic shading on the skin - that is how all the Complex Global lighting sets work. They are very unrealistic lighting models, but they yield a sense of realism in a render because they compensate for the lack of "responsiveness" in the skin material. NOTE - HDRI is a special case, and has its own merits because it is environmentally reactive, but I'm not addressing that here. A different approach is to use a custom shader (like the skin shader in P5) to make the skin "react" naturally to the lighting (rather than making the lighting react to the skin). This approach is diametrically opposed to the Global Lighting approach, and they should NOT be used together. Custom shaders (skin, velvet, clay, blinn, anisotropic etc) ALL are designed to make the material react appropriately to the lighting. They ASSUME that the lighting is conventional, and similar to lighting in the real world. Generally 3 or 4 lights in a scene are all that should be used if you plan on using this type of shader. In the skin render above I am using only 3 lights. Remember that I said there were 4 things that make skin look "real"? Well, in Poser, if we want our skin to look real, we have to address all 4 things 1) Skin texture (roughness) is controlled by bump or displacement mapping). I cannot tell you how important a good bump map is for making decent skin - it is vital. 2) Skin moisture content - mostly affects the highlights and "sheen" and is controlled in the skin shader and in the Specular Channel. Remember though, that the Specular channel is primarily designed for highlights on solid objects (not transluscent objects such as skin) and should be used with care to avoid that "oily plastic" look. 3) Transluscency - for the thin layers of the skin surface it is controlled directly in the Skin Shader (but on a larger scale for things like ears it is controlled by the transluscency channel) - now if we can just get them to make the ears a seperate material zone, I'd be happy. 4) Interaction with lighting - the most important one of all - is controlled by the Skin Shader in combination with lighting placement. I recommend using white light only while you are adjusting your shader materials, then add your lighting "tone" later. Whatever you do, get rid of those damn Poser default lights! They were created for Poser v3, and have never been updated - they are OBSOLETE and no longer enhance the product as they originally did. So if you want realistic skin in P5, you can't just plug in the Skin Node to the Alt Diffuse channel, and expect to get the best results. You must have appropriate lighting and you must make the proper adjustments to the shader parameters. In typical Curious Labs fashion the default parameters of the skin shader are NOT set to optimal values - you will have to make adjustments to get the best results.
alamanos posted Wed, 14 April 2004 at 2:36 PM
Hi Ronstuff, how about a screen shot of your mat settings for the above pic... I've tried.. but i've come no where as close as you did in the above pic...
layingback posted Wed, 14 April 2004 at 4:18 PM
ronstuff, I 2nd alamanos' plea for a screen shot... (Starting from behind here, as P5 didn't want to cooperate on my system until SR4.1!) You should be able to create the effect of separate ear material zones using the Grouper tool to select all - or even just the outer parts - of the ear(s) and spawn a new material zone. Leastways it shows up in P4/PP Materials, so I'd assume it'd show up in P5's Material Room. Thanks for the thoroughness of your post.
semidieu posted Wed, 14 April 2004 at 4:35 PM
I third.... please please please... And which texture did you use for this guy ?
Peggy_Walters posted Wed, 14 April 2004 at 5:49 PM
I'll forth that! Please show a screen shot. Skin Shader? This is the first time I have heard that term - I'm going out on a search party to read more about this!
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ronstuff posted Wed, 14 April 2004 at 7:19 PM
ronstuff posted Wed, 14 April 2004 at 8:33 PM
mateo_sancarlos posted Wed, 14 April 2004 at 9:46 PM
Good work on the black dude, Ron. It's called "rim lighting". You may be pleasantly surprised by how much better it will look in Carrara, if you get a chance to apply your skills there.
bijouchat posted Thu, 15 April 2004 at 10:31 PM
Attached Link: http://www.renderosity.com/gallery.ez?ByArtist=Yes&Artist=bijouchat
Carrara has one of the best renderers in the biz. And it is inexpensive. And it is reliable. P5 has a habit of always crashy crashy on big renders, and its dead slow - Carrara lets me get the stuff done quicker. Saving time is also important. And not crashing during a render is even more important. If you want to see Poser renders in Carrara - just go to my gallery. You do need to tweak the skin shaders a bit, I'm not totally pleased with how they come in with Transposer. You can change them though, like you can in Vue.bijouchat posted Thu, 15 April 2004 at 10:39 PM
Attached Link: http://www.renderosity.com/viewed.ez?galleryid=580089&Start=1&Artist=bijouchat&ByArtist=Yes
this link has one with better shader setup and HDRI lighting, C3. Good luck getting those gems to sparkle with the caustics (which do not exist in Poser) or refraction to work properly in Poser 5. ;)