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My WIP and Reviews
Posted: 08 March 2014 11:26 AM   [ Ignore ]
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I thought I would start a thread to post some of the my work in progress and some reviews/comments on products.

Yesterday I bought Lacey and Black Light for Genesis 2 Female.

I almost did not buy Lacey for a couple of reasons. I did not like the promo renders. I think it was a poor choice of hair that spoiled the promos for me. Lacey has a nice photo-realistic skin, but the hair in the promos looks so cartoonish. It just does not go together and put me off from buying Lacey. I finally decided to give it a try based on the skin/facial appearance.

After the my first test render, I was immediately glad that I bought her. There are regular skin mats and AoA SSS mats. I have only tried the AoA SSS mats. The diffusion texture is very pale. Much of the skin color comes from the SSS as is natural with Caucasians skin.  The diffusion strength is 70% and the SSS strength is 50%. The SSS color uses the diffusion texture with the color 255,233,225. The shading scale is 0.5, which is unrealistically large and exaggerates the SSS effects. The Absorb/Scatter coefficients are the skin B values that everyone uses. The UV set is the G2F Base Female.

I really like this skin texture. Much of the time when I first render a new character I am disappointed with the results, but I really liked Lacey from the first render I did. I like that the PAs did not feel obligated to use 75% SSS strength like almost all the other characters released with AoA SSS mats. They picked a SSS strength to get the appearance they wanted.

I’ve attached a quick render of Lacey wearing the Black Light for Genesis 2 Female outfit, which although not shown in the promos, also comes with red mats.  Other products used in the render:

Micah Hair
Advanced Ambient Light
The backdrop is from InaneGlory’s Photo Studio 3, but I did not use any lights from that set for this render.
Pose is from Casual Sexy Poses for Genesis 2 Female

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Posted: 08 March 2014 12:04 PM   [ Ignore ]   [ # 1 ]
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Good render. love the short hair.

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Posted: 08 March 2014 12:20 PM   [ Ignore ]   [ # 2 ]
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tinneybryan - 08 March 2014 12:04 PM

Good render. love the short hair.

Thanks. I think she looks so much better with this hair than the Diva hair used in the promos.

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Posted: 08 March 2014 02:44 PM   [ Ignore ]   [ # 3 ]
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This is an experiment I did to try to understand how SSS works better.

For this I am using the V6 Anna skin that comes with Victoria 6 HD Add-On.  This skin has diffusion strength of 50% and SSS strength of 75%. The SSS color is the diffusion textures with color 255, 210,189. The shading scale is 0.5, which is unrealistically large. The more physically correct value would be 0.1 to 0.2, but the large value gives a softer SSS effect, which I guess lots of PA like.  The Absorb/Scattering coefficients are the skin B ones that everyone uses. 

I have attached a render with three images. The first has the diffusion strength set to 100% and SSS set to 0%. This shows that without the SSS, this skin texture is very pale white, almost dead looking. This is true of real Caucasian skin. Much of the skin tone comes from the SSS.

The second image shows the SSS at 100% with the diffusion at 0%. The SSS on its own is dark reddish brown. A lot of the reddish color here comes from the pink (255,210,189) color in the SSS color. Without that added pink the SSS would be more brown.

The third image is the result of combining diffusion and SSS in the strengths set in the V6 Anna All MAT.  There are presets for 25% and 50% SSS strength too, but I have not experimented much with them.

This is one of only a few skin mats that use 75% SSS that achieves an appearance something like Caucasian skin.

The diffusion textures used for most high quality skins are based on photographs of actual models skins.  When you photograph a real persons skin, much of the skin tone/color in the picture is the result of SSS. Most diffusion texture resources come with the SSS coloration already baked into the diffusion texture. When you add SSS effects in the shader, you get a result that is darker than the original model. I think this is why a lot of characters with 75% SSS strength render with darker skins.

Many PAs try to make the diffusion texture paler by putting a light blue color for diffusion in the shader. This Anna texture does not do that. In this case I think the diffusion texture was made paler in Photoshop, which gives the PA more control over the result than a single color in the shader. In Photoshop you can make separate adjustments to eyebrows and lips, which you generally cannot in the shader.

In case anyone is wondering, the Absorb/Scattering coefficients that are in the AoA SSS shader appear to come from A Practical Model for Subsurface Light Transport by Jensen, et al. The Skin B coefficients are Skin 2 in table 5b. They made laboratory measurement of these coefficients for two different skins, but the paper has no information about what kind of skins these were. The coefficients are very different. The Skin A coefficients produces darker results than Skin B, which appears to be why almost everyone uses the Skin B coefficients.

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Posted: 09 March 2014 09:38 PM   [ Ignore ]   [ # 4 ]
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I have been working on setting up skins to use the AoA SSS shader. One of the characters I have been working with is Audrie, a Genesis 1 and V4 character by OziChick at Renderosity. I have only been using the Genesis 1 version.  I have learned quite a bit doing this. One thing I’ve learned is that skin using the AoA SSS shader can look very different under different lighting conditions, just like real skin.

Here is a WIP render of where I’ve gotten so far.

Other things used in this render:

Dea Araneam Hair
Purple Rain Outfit
MRL Fusion by Mihrelle at Renderosity
Egypt City for DS

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Posted: 09 March 2014 11:24 PM   [ Ignore ]   [ # 5 ]
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I bought the Photo Studio - Point and Shoot 2 today.  Here is a quick render of one of the light setups. This package has around 90 different light setups. I picked on here that gives higher contrast lighting for a more edgy effect.

Other products in the render:

Lacey
Nordic Hair
Sunny Swimsuit HD
i13 Signals And Vibes

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Posted: 11 March 2014 12:09 AM   [ Ignore ]   [ # 6 ]
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mark128 - 09 March 2014 09:38 PM

I have been working on setting up skins to use the AoA SSS shader. One of the characters I have been working with is Audrie, a Genesis 1 and V4 character by OziChick at Renderosity. I have only been using the Genesis 1 version.  I have learned quite a bit doing this. One thing I’ve learned is that skin using the AoA SSS shader can look very different under different lighting conditions, just like real skin.

Here is a WIP render of where I’ve gotten so far.

Other things used in this render:

Dea Araneam Hair
Purple Rain Outfit
MRL Fusion by Mihrelle at Renderosity
Egypt City for DS

Continued working on this. Reduced the SSS strength which I think gives a more realistic skin tone.  Also changed the lighting.

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Posted: 11 March 2014 10:04 AM   [ Ignore ]   [ # 7 ]
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mark128 - 09 March 2014 11:24 PM

I bought the Photo Studio - Point and Shoot 2 today.  Here is a quick render of one of the light setups. This package has around 90 different light setups. I picked on here that gives higher contrast lighting for a more edgy effect.

Other products in the render:

Lacey
Nordic Hair
Sunny Swimsuit HD
i13 Signals And Vibes

The lighting looks very good here, I picked up these lights also but had a bit of a time trying to figure them out.  Any user tips you have would be appreciated.  I have a render that I will post later in my thread using these lights.

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“If you get a chance….Take it!  If it changes your life….Let it!.  Nobody said life would be easy, they just promised it would be worth it.”

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Posted: 11 March 2014 11:19 AM   [ Ignore ]   [ # 8 ]
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Kharma - 11 March 2014 10:04 AM

The lighting looks very good here, I picked up these lights also but had a bit of a time trying to figure them out.  Any user tips you have would be appreciated.  I have a render that I will post later in my thread using these lights.

I have some of the earlier InaneGlory light sets, so I was familiar with the basic lights.

The InaneGlory lights are based on the UberArea light shader, although he may have tweaked it some. They are basically UberArea light emitting surfaces surrounded by a shell to direct the light.  The newer version included in this set come parented to something that appears in the light section of the camera drop down, so you can “look through” the lights to get them pointed at your subject.  The actual light controls are on the surface tab, similar to UberArea lights.  To try to make them simpler to use, there are presets for intensity, color, quality, and shadow intensity that you can use rather than fiddling with the actual surface tab.

The intensity on the surface tabs with these lights seems very high. The 100% preset seems to correspond to 15000% intensity on the surface tab. This may vary depending on the type of light used.  I used Light Set Quality 24 preset. I don’t think you need to go much higher, but you can if you want.

The Point and Shoot set 1 allowed you to load individual lights and make your own setups, but Point and Shoot 2 seems to only allow you to load light sets, with a bunch of 3 point light sets and some adjustment presets.  I have worked with some professional photographers and helped them with lighting. The different kinds of lights are suppose to act like the studio lights used by photographers.

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Posted: 11 March 2014 11:34 AM   [ Ignore ]   [ # 9 ]
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I noticed that skins using the AoA SSS shader look paler when I use Gamma 2.2 lighting than when I use Gamma 1.0 lighting. Here is an example using the Victoria 6 Anna skin. On the left is a render using Gamma 1.0 with a simple light setup. One distant light, 50% intensity, ray traced shadows with 50% shadow softness. One Advanced Ambient light also at 50% intensity. This setup gives some nice shadows that help define the face and give it a 3 dimensional look.

The 2nd image shows the same light set rendered at Gamma 2.2 with gamma correction. The skin tonne is much lighter, but the image also looks flat and washed out. The washed out look is because you need much less fill light at Gamma 2.2 to get the same shadows that define and make the subject look 3D.

The 3rd image shows the Advanced Ambient light turned down to 10%. This gets us some nice shadows again, but the image is a little darker.

The 4th image shows the distant light at 80% and the advanced ambient at 15%. This is similar looking lighting to the gamma 1.0 image, but look at how much paler the skin looks in the gamma 2.2 lighting.

I’m not sure why this is happening, but I have noticed it on other skins too. Does this have something to do with the way the gamma correction works?

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Posted: 12 March 2014 10:48 AM   [ Ignore ]   [ # 10 ]
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Did some more experimenting with Photo Studio - Point and Shoot 2.  This uses:

Victoria 6 HD
Estal Hair
PHC and PHCN for Estal Hair
DJ Remixed

I used the 3pt Rim Right Light Setup and I turned the intensity of light 1 (the key light) down from 80% to 60%. This is rendered with Gamma 2.2.

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Posted: 12 March 2014 11:45 AM   [ Ignore ]   [ # 11 ]
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mark128 - 12 March 2014 10:48 AM

Did some more experimenting with Photo Studio - Point and Shoot 2.  This uses:

Victoria 6 HD
Estal Hair
PHC and PHCN for Estal Hair
DJ Remixed

I used the 3pt Rim Right Light Setup and I turned the intensity of light 1 (the key light) down from 80% to 60%. This is rendered with Gamma 2.2.

This is same character and pose (except I moved her fingers to not be going through the sleeve), but I changed the light setup to 3pt Tight Right.

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Posted: 13 March 2014 10:19 AM   [ Ignore ]   [ # 12 ]
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Here is the final version of the 3pt Rim Right portrait. I added this in my Gallery. Changed the hair color and adjusted the specular a bit on the hair.

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Posted: 13 March 2014 02:32 PM   [ Ignore ]   [ # 13 ]
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I’ve been watching these with interest. Thanks for posting your work.

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Posted: 14 March 2014 03:47 AM   [ Ignore ]   [ # 14 ]
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Tonight I tried out Domina with her Domina Outfit.

Also used in this image:

Gregoria Hair
Photo Studio - Point and Shoot 2
DMs Sensual V6 - I

I love the Domina skin texture. It is really outstanding. This render uses the default skin setup, which has 45% diffusion strength and 75% SSS strength with the SSS shading scale at 0.5. The SSS color is white with a texture that looks like the diffusion texture with some pink added. It looks like they did more than just mask the diffusion texture with some pink. They applied some extra pink in some body regions. The UVs are the Genesis 2 Base Female UVs.

The Gregoria hair is a Genesis 1 hair. I just parented it to the head and manually adjusted it rather then use auto fit to avoid any distortion of the hair by auto fit.

I used the High Right 3pt with Rim (HQ) light set for this image.

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Posted: 14 March 2014 10:47 AM   [ Ignore ]   [ # 15 ]
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Love this one…Once again its the hair….works well with the outfit.

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