Show Us Your Iray Renders. Part II

3dTox

Takeo.Kensei said:

evilded777 said:

I was wondering myself why one would render with the headlamp on...

The headlamp is at least useful when you have no light in the scene (just HDR or sun/sky light) and that you are in texture shaded mode in the viewport. It helps not being in the dark when trying to setup a scene. without having to throw in an UE light when working with Iray

I have used it once with a slight offset above the lens to get a simulated flash bulb effect.

Musicplayer

DAZ_Spooky said:

Riggswolfe said:

Musicplayer said:

Another of my renders using Raiya's handsome new character, Gareth. http://www.daz3d.com/gareth-hd-for-michael-6

Scene lit with HDRI Sierra Madre B and the Camera headlamp was set at 0.20
My own custom skin shader settings used.

Credit for use of HDRI Sierra Madre B kindly given free by http://www.hdrlabs.com/sibl/archive.html

:-)

You know, everytime I try to use the headlamp I get shadows on my people's faces below their eyes that I think may be their eyelashes but nothing I do fixes it. Yet the rest of you seem to be able to use headlamps just fine!Most of the renders I have seen don't use the headlamp at all. LOL.

evilded777 said:

I was wondering myself why one would render with the headlamp on...

I was wondering myself why one would render with the headlamp on...

The headlamp is at least useful when you have no light in the scene (just HDR or sun/sky light) and that you are in texture shaded mode in the viewport. It helps not being in the dark when trying to setup a scene. without having to throw in an UE light when working with Iray

I have used it once with a slight offset above the lens to get a simulated flash bulb effect.

I find sometimes that a little light when using HDRI is well suited from the Camera headlamp. I always read in the forums how people said to turn it off, but a professional photographer on deviantart.com said it was beneficial as a sort of rim light. He said that professional photographers get strange looks when they are seen using flash bulbs for outdoor photography, but they do so because it enhances the final subject, and apparently this is what the camera headlamp also does in Iray renders.

:-)

Musicplayer

Riggswolfe said:

Musicplayer said:

Another of my renders using Raiya's handsome new character, Gareth. http://www.daz3d.com/gareth-hd-for-michael-6

Scene lit with HDRI Sierra Madre B and the Camera headlamp was set at 0.20
My own custom skin shader settings used.

Credit for use of HDRI Sierra Madre B kindly given free by http://www.hdrlabs.com/sibl/archive.html

:-)

You know, everytime I try to use the headlamp I get shadows on my people's faces below their eyes that I think may be their eyelashes but nothing I do fixes it. Yet the rest of you seem to be able to use headlamps just fine!

I have had the same problem in some of my renders where the eyelashes are shadowed across the eyes. I now use photometric spotlights or HDRI instead, and only use the headlamp at low light intensity settings. I have also changed the characters pose to try and remove the problem. At 100% light intensity the camera headlamp created good shadows, but then gave me the eyelashes shadow problem.

Hope this helps. :-)

Oso3D

Minor background character for upcoming webcomic stuff.

Basically, dragonfly faerie.

Sorta.

Exo & hammerhead alien morphs, Medolian skin texture modified a bunch, dragonfly universal V4 wing thing modified a bunch.
Carnation is from Xfrog free samples.

Riggswolfe

Musicplayer said:

Riggswolfe said:

Musicplayer said:

Another of my renders using Raiya's handsome new character, Gareth. http://www.daz3d.com/gareth-hd-for-michael-6

Scene lit with HDRI Sierra Madre B and the Camera headlamp was set at 0.20
My own custom skin shader settings used.

Credit for use of HDRI Sierra Madre B kindly given free by http://www.hdrlabs.com/sibl/archive.html

:-)

You know, everytime I try to use the headlamp I get shadows on my people's faces below their eyes that I think may be their eyelashes but nothing I do fixes it. Yet the rest of you seem to be able to use headlamps just fine!

I have had the same problem in some of my renders where the eyelashes are shadowed across the eyes. I now use photometric spotlights or HDRI instead, and only use the headlamp at low light intensity settings. I have also changed the characters pose to try and remove the problem. At 100% light intensity the camera headlamp created good shadows, but then gave me the eyelashes shadow problem.

Hope this helps. :-)

I may experiment as I read the same thing you did on DeviantArt and thought "Hmmm, that's worth trying".

kyoto kid

StevieC said:

First post here, but certainly not my first Iray render......spent the last 3 weeks on a learning curve with Iray lighting, and applying proper shaders to textures.....this was an experiment to see if I could get a reflection on the Iray glass shader applied to the window pane. Unfortunately, no matter which glass shader I used, and even adding a photoreal spotlight from inside, couldn't get enough of a reflection happening. So I did 2 renders, one with glass applied, and one with Aluminum applied to the glass plane, and combined the layers in Photoshop to get the reflection of the model in the window. Would love to see a reflective glass shader in the Iray shaders set, as they have in Keyshot......

...hmmm, I had no trouble getting a reflection on a single render pass using the Iray "Glass- Thin Clear" shader with default values (save for a slight colour change).

kyoto kid

Takeo.Kensei said:

evilded777 said:

I was wondering myself why one would render with the headlamp on...

The headlamp is at least useful when you have no light in the scene (just HDR or sun/sky light) and that you are in texture shaded mode in the viewport. It helps not being in the dark when trying to setup a scene. without having to throw in an UE light when working with Iray
...or an AoA Advanced Ambient.

Jimbow

StevieC said:

First post here, but certainly not my first Iray render......spent the last 3 weeks on a learning curve with Iray lighting, and applying proper shaders to textures.....this was an experiment to see if I could get a reflection on the Iray glass shader applied to the window pane. Unfortunately, no matter which glass shader I used, and even adding a photoreal spotlight from inside, couldn't get enough of a reflection happening. So I did 2 renders, one with glass applied, and one with Aluminum applied to the glass plane, and combined the layers in Photoshop to get the reflection of the model in the window. Would love to see a reflective glass shader in the Iray shaders set, as they have in Keyshot......

Real glass has a thickness, so you need to add thickness to your CG windows for iray.

At left is a thin cube which has thickness, and to the right is a primitive plane which has no thickness. Both objects use the same default preset (Glass - solid - clear).

StevieC

Ahhhh, so that's the trick! Thank you Jimbow!:)

mjc1016

That's pretty much the same for any PBR renderer. No thickness = plastic wrap, instead of glass.

j cade

So I really don't know when to stop with "test renders" halfway through I get distracted by some idea and it ends up ridiculously involved.

That said I love the pose.

The chaise is from here http://www.blendswap.com/blends/view/77004 and it is fantastic.

Also the fabric on the chase is using the totally bazaar presets, which only required minimal tweaking. (The wood on the chaise on the other hand I had to uv so I could bake the vertex paint from blender)

Postwork was also done primarily in blender, as blenders method for sun rays is the easiest IMO

The render only took an hour and a half, but I am starting to hit my computer's capabilities.

One great thing I have noticed about Iray's SSS is that unlike 3delight (or blender for that matter) When the skin intersects with itself the SSS isn't multiplied which sometimes has lead to glowing creases in my renders.

I'm going to fiddle some more before I stick it at full size in my gallery.

evilded777

Geez, Kamion, that's gorgeous

Oso3D

Amusingly, I'm like 'yeah, a woman, ok' and really keen on how nice the architecture and room turned out.

Kudos, Kumion. ;)

Joe.Cotter

Blantyr said:

I can easily imagine such a camera that can take pictures by candle light.

Ok, maybe you can imagine it, but that doesn't mean it is reality. If you use a high quality dSLR and 'set the ISO' to 3200 or higher, you will get light from a single candle, but the colors will be washed out/yellow. I know this because I have experimented with it. Perhaps in the future, there will be a camera that is able to capture full spectrum of light with almost no light but considering that the light source is a single candle, it will pretty much always strongly effect the available spectrum if nothing else. Think of low light pictures, they pull yellow in most cases.

There is a solution... don't put the candle light to impossible levels for one, and add an ambient light source. Also, as people mentioned, adjust the ISO as that is what one would do "in the real world."

Is an auto mode where the sensitivity of the camera automatically adjusts to the light available plausible? Is the objective in designing Iray to make using the engine more difficult than necessary?

I’d be pleased by a list of the other options to control and adapt to light. I’m assuming F-Stop under the camera parameters is one of them. Are there other controls that us point and shoot 3Delight people should know about?

This is a valid point in that there is no 'auto' settings for the most part at this time for these types of settings. One pretty much needs to have an understanding of the fundamentals of ISO, f/stop, aperture, lighting principles (as they apply irl cameras) etc... to take advantage of the render engine. It can be easy for those of us who have spent the (not insignificant) time already learning this to treat it lightly. With that in mind, I apologize for any wording that comes off as less then friendly in previous statements. It's a common reaction "I put in the work, you should too" which is not very friendly.

Having said that, 'auto' settings which would give the full spectrum of possibilities that one can achieve with all of the settings available would require a pretty extensive ai along with an interface as yet not developed or conceived of. Our eyes do so much as far as adjusting for available light levels, quickly focusing on different points in space, etc... to try to do that with automatic settings... it would take a lot of work. When one doesn't know all of the manual things that go into something, it's easy to think it could be automated when in fact it would be very hard.

Finally, ... very few people want what they would get 'irl.' We want to sculpt our environment. To drop certain areas into deeper shadows, put more light on certain areas, expand the color range in some areas, compress it in others... Very rarely is 'real life' the artistic piece we are hoping for. Trying to incorporate all of these decisions into the above mentioned ai would indeed create a 'make art' button.

TJohn

I hate it when my 3D models show up drunk for a shoot. :)

Rareth

well its not exactly candle light but..

mjc1016

Kamion99 said:

The chaise is from here http://www.blendswap.com/blends/view/77004 and it is fantastic.

Also the fabric on the chase is using the totally bazaar presets, which only required minimal tweaking. (The wood on the chaise on the other hand I had to uv so I could bake the vertex paint from blender)

So is the rest of that set...and best of all...it's CC-0!

ZarconDeeGrissom

timmins.william said:

And another of my webcomic, The Lady and the Dragon ( http://ladyanddragon.webcomic.ws )

I was happy at how well I was able to spruce up not-very-high texture resolution architecture (just straight piped the diffuse map to bump).
The free dragon doesn't have the best texture, and toward the right you can see some of the limitations.

But all in all I was happy with the revamp from 3Delight to Iray, and the lighting is cool.

I had fussed with the textures a bit myself for a render, just to get an OK backdrop. It's a few pages in the 3delight thread. Starting about here.
http://www.daz3d.com/forums/viewreply/799833/
The biggest issue, is that even with a map in the color channel to control the color of the gloss, there is No maps at all to control where Velvet and Gloss is on the body. So the dark spots between the scales end up rather dull.

I ended up opening the mats in IrfanView, and applying a bit of contrast, and "Sharpen" to them. And messing with using Bump and Spec maps in the "Strength" slots. Later on I doubled the dimensions of the maps, and did it all over again. Considerable help from Rogerbee on that.

Twilight76

ok, here a little something for today

MEC4D

Found some model did not know (or forgot ) I had it in my library lol
HDRI Pixar Campus for lighting
just 356 samples for testing , render 34 min .. not going that fast this time
did not changed the materials

ZarconDeeGrissom

Mec4D said:

Found some model did not know (or forgot ) I had it in my library lol
HDRI Pixar Campus for lighting
just 356 samples for testing , render 34 min .. not going that fast this time
did not changed the materials

I don't recall there being vines in that set??? "O" right in front of my face, lol.
OK, where is the color???? or the leaf opacity maps for that matter, lol.
(EDIT)
Oh, this is fun, I must select each one, and apply the mats individually, great.
(EDIT2)
That dose look allot better, I had looked for some of that stuff, a year ago, and gave up on the set after not finding any of it. Thanks Mec4D.

Takeo.Kensei

Jimbow said:

StevieC said:

First post here, but certainly not my first Iray render......spent the last 3 weeks on a learning curve with Iray lighting, and applying proper shaders to textures.....this was an experiment to see if I could get a reflection on the Iray glass shader applied to the window pane. Unfortunately, no matter which glass shader I used, and even adding a photoreal spotlight from inside, couldn't get enough of a reflection happening. So I did 2 renders, one with glass applied, and one with Aluminum applied to the glass plane, and combined the layers in Photoshop to get the reflection of the model in the window. Would love to see a reflective glass shader in the Iray shaders set, as they have in Keyshot......

Real glass has a thickness, so you need to add thickness to your CG windows for iray.

At left is a thin cube which has thickness, and to the right is a primitive plane which has no thickness. Both objects use the same default preset (Glass - solid - clear).

That's also possible without thickness. Metalicity > 0 and lower refraction weight

MEC4D

I use the thin glass for Corneas and I get always reflection in, also used for outside windows and got very strong reflections
change the glossy specular to white to get stronger effect

Takeo.Kensei said:

Jimbow said:

StevieC said:

First post here, but certainly not my first Iray render......spent the last 3 weeks on a learning curve with Iray lighting, and applying proper shaders to textures.....this was an experiment to see if I could get a reflection on the Iray glass shader applied to the window pane. Unfortunately, no matter which glass shader I used, and even adding a photoreal spotlight from inside, couldn't get enough of a reflection happening. So I did 2 renders, one with glass applied, and one with Aluminum applied to the glass plane, and combined the layers in Photoshop to get the reflection of the model in the window. Would love to see a reflective glass shader in the Iray shaders set, as they have in Keyshot......

Real glass has a thickness, so you need to add thickness to your CG windows for iray.

At left is a thin cube which has thickness, and to the right is a primitive plane which has no thickness. Both objects use the same default preset (Glass - solid - clear).

That's also possible without thickness. Metalicity > 0 and lower refraction weight

Joe.Cotter

Musicplayer said:

... but a professional photographer on deviantart.com said it was beneficial as a sort of rim light. He said that professional photographers get strange looks when they are seen using flash bulbs for outdoor photography, but they do so because it enhances the final subject, and apparently this is what the camera headlamp also does in Iray renders.

:-)

It wouldn't act as a rim light as rim lights are from behind and the headlamp is from front. It could be used as a 'fill light' in some instances possibly. That is what a flash is used for in outdoor photography. I think the confusion comes from the fact that when there is bright back lighting that would create a good rim light, the front of someone would be in shadow and the flash helps give 'fill light' to the area that would be in shadow.

MEC4D

I see you found more elements than me lol
adding the materials individually was a pain in the butt
I am going to add rest of it and render overnight with higher pixel samples

for the leafs you can use slightly light green translucency but it may take longer to render .
Scaling the finite sphere will produce more accurate intense light and make it more colorful

zarcondeegrissom said:

Mec4D said:

Found some model did not know (or forgot ) I had it in my library lol
HDRI Pixar Campus for lighting
just 356 samples for testing , render 34 min .. not going that fast this time
did not changed the materials

I don't recall there being vines in that set??? "O" right in front of my face, lol.
OK, where is the color???? or the leaf opacity maps for that matter, lol.
(EDIT)
Oh, this is fun, I must select each one, and apply the mats individually, great.
(EDIT2)
That dose look allot better, I had looked for some of that stuff, a year ago, and gave up on the set after not finding any of it. Thanks Mec4D.

Oso3D

I like to try to use models that are 'not typical' (heavier, older, not white, etc). So I thought 'you don't often have female protagonists over 40s/50s in fantasy.'

So I did that.

Although as I developed the scene, it turns out you can't see her all that clearly. Ah well.

(another creative use of a dynamic sheet. I love playing with it)

Ippotamus

Still Athena Sleeps

rov

Riggswolfe said:

evilded777 said:

I was wondering myself why one would render with the headlamp on...

I haven't used it because of that issue I mentioned but I have seen others who have used it to great effect.
I have used it with HDR lighting and IBL lighting, just as a little fill light, set at 0.2 or 0.5 to make a character come out a little bit more. Do the nudity I can't show it here onfortunately.

rov

Kamion99 said:

So I really don't know when to stop with "test renders" halfway through I get distracted by some idea and it ends up ridiculously involved.

That said I love the pose.

The chaise is from here http://www.blendswap.com/blends/view/77004 and it is fantastic.

Also the fabric on the chase is using the totally bazaar presets, which only required minimal tweaking. (The wood on the chaise on the other hand I had to uv so I could bake the vertex paint from blender)

Postwork was also done primarily in blender, as blenders method for sun rays is the easiest IMO

The render only took an hour and a half, but I am starting to hit my computer's capabilities.

One great thing I have noticed about Iray's SSS is that unlike 3delight (or blender for that matter) When the skin intersects with itself the SSS isn't multiplied which sometimes has lead to glowing creases in my renders.

I'm going to fiddle some more before I stick it at full size in my gallery.

This is absolutely gorgeous!

Jimbow

Again, there's some great looking stuff going on here. This is my take on skin again, using my stone age buddies. Rendered at gamma 1 with customised textures changed to gamma 2.2 in PS. I've dumped the head hair for now while I customise in Softimage. Both figures have internal bodies that block the SSS transmission where (kind of) appropriate, but theoretically allow light to wrap around through the soft tissue. Though subtle, it did make a difference, but I'll also be trying out SSS transparency maps.