glass preset values?

Looks like it’s going to be tomorrow before I
post the tutorial, I’ve worked alot on it today
though <!– s:D –><img src="{SMILIES_PATH}/icon_e_biggrin.gif" alt="" title="Very Happy" /><!– s:D –> Hope it all turns out ok <!– s:) –><img src="{SMILIES_PATH}/icon_e_smile.gif" alt="" title="Smile" /><!– s:) –>

Later, James

I’ve been messing with the POVray rendering integration in 3DC trying to emulate a glass object. The presets for glass are marvelous, I am impressed with the results. However, I can’t beging to reproduce the results using the manual settings.

Does anyone know what some of the settings for glass in the presets are? I’d like to try this manually in order to tweek my results a little

this is a simple scene, POVray preset to glass, clear (I think)
[img:237tj69o]http&#58;//img&#46;photobucket&#46;com/albums/v199/guitarish/wineglass&#46;jpg[/img:237tj69o]

Do you mean the settings inside the pov file or the sliders,etc inside 3dc ?

although I understand most of the ‘stuff’ gets done in POVray, I’m refering to the sliders inside 3DC. I’ve pushed around on them for better part of an evening, and still don’t understand what makes good glass.

Whatever Richard did on his presets are wonderful, however, I suppose though a monkey has to take things apart to see how they work (me, not Richard)

The glass preset is provided by the authors of POVRay. I’m not sure what their settings are or if they can be achieved with 3DC’ POVRay material attributes. POVRay does a lot of stuff and 3DC does not directly support everything.

Richard

ah, ok, there it is, rolled into POVray

if anyone does have some skill at glass emulation in 3DC using the sliders or even outside the POVray settings, please post here?

Thanks

Hi

I was playing around with this myself a few days
ago.. fist I changed the settings in pov
here’s a pic of the settings

…then I changed the refraction settings to 6
I think, I changed this by right clicking (on
the glass object I was trying to make) then
enter properties…

When I applied the textures I the rendered using
Pov. Here is the result from a few angles…
just in case, I used a very light gray color for the wine class and ligh green for the bottle
Hope this helps <!– s:) –><img src="{SMILIES_PATH}/icon_e_smile.gif" alt="" title="Smile" /><!– s:) –>

later, James

I used the same settings for the glass and the
bottle, just changed the color

..

excellent! Wonderful!

yes, thank you, this does help. This is what I’ve been trying to do (lets you play with your own colors a bit, where the presets seem to override color)

<!– s:) –><img src="{SMILIES_PATH}/icon_e_smile.gif" alt="" title="Smile" /><!– s:) –>

I have found that 3DC’s glass presets are good, but sometimes to get photorealistic images of glass, you have to be willing to go further. I usually do this manually in POV. ( Take alook at happy easter in the models) I use ALOT of glass textures and have found that in POV, you must not only use a glass texture, but you can (and I almost always do) use what POV calls interior codes. This enables the glass texture to have an effect called IOR. the way light bends and reacts to various types of transparant materials..glass, crystal, diamonds, water. If you want some help doing it and playing alittle in POV, e-mail me… I’ll help you out. By the way, both the cups and the colored water in ‘happy Easter’ have interior statements.

I forgot to mention… POV has lots and lots of examples in POV its self of all kinds of glass and interiors. I usually find one I like and just copy the code to my scene. Sometimes it needs tweaking… but thats just if I’m looking for something very specific. I have literally hundreds of glass, crystal etc. examples I use. But, I have to say, the ones in 3DC are very good as is.

Hi Polybuilder,
A really nice piece of work. <!– s:D –><img src="{SMILIES_PATH}/icon_e_biggrin.gif" alt="" title="Very Happy" /><!– s:D –>

If you get time, I think it would be a good idea to write this glass technique up and put it in the Mini Tutorial section. Others could then add their own ideas.

Bazza