Problem rendering transparent glass in 3Delight

sara.sunrose_fd126bed5e

Hi!

I'm quite new to Daz3d and am having trouble with this product I purchased: http://www.daz3d.com/potions-and-bottles

The problem I'm having is, I cannot get the glass for the potion bottles to render transparent. The're opace in color.
I'm rendering with 3Delight in default settings, chose the appopriate glass shader from the shaders provided with the product (3Delight version), which shows transparency in the thumbnail, but I always get opace color.

I was under the assumption that I wouldn't need to adjust any other settings for it to work, but I'm guessing that I do, and that there's something that I don't know about that I'm supposed to do.

Would really appreciate any help on this matter, and if there's anything else I can specify to make it more clear then feel free to ask! :)

mjc1016

That is rendering normally, or how I would expect it to look without there being an actual environment in the scene.

Glass in 3Delight needs a surrounding environment to be able to work correctly.

In Iray the HDR in the environment provides that, in 3Delight there is nothing similar, so you need to provide one...and for best results, it should be totally enlcosed (a skydome and ground prop or full room).

sara.sunrose_fd126bed5e

Okay, thank you!

I will see what I can do with that information. :)

vwrangler

Depending on what that material is actually doing, for 3Delight, you may also need to increase the Raytracing number in the Render Settings. I'm not at a computer with Studio right now, so I can't be certain, but I think it's under either the Progressive or the Sampling sections, (or maybe Shading Rate) on the render settings screen that you showed up there.

If the number is at 1 or 2, try increasing it to 4 and see what happens.

Note that this *will* increase the render time, though how much it's hard to say.

mjc1016

vwrangler said:

Depending on what that material is actually doing, for 3Delight, you may also need to increase the Raytracing number in the Render Settings. I'm not at a computer with Studio right now, so I can't be certain, but I think it's under either the Progressive or the Sampling sections, (or maybe Shading Rate) on the render settings screen that you showed up there.

If the number is at 1 or 2, try increasing it to 4 and see what happens.

Note that this *will* increase the render time, though how much it's hard to say.

Max Ray Trace Depth...under Sampling...and the default of 2 "should" give some indication of transparency, but 4 or 6 would be better.

And if the mode is set to Progressive ON, the hit for increasing the MRTD is much less than with Porgressive off.

SpottedKitty

Yes, the Ray Trace Depth setting is one of the vital factors in getting a good 3Delight glass render; also mirrors and anything else shiny/reflective. The only drawback is that higher values will cause your render time to go up through the roof — you can't limit raytrace behaviour just to the glass material, it must apply to the whole scene.

mjc1016

SpottedKitty said:

Yes, the Ray Trace Depth setting is one of the vital factors in getting a good 3Delight glass render; also mirrors and anything else shiny/reflective. The only drawback is that higher values will cause your render time to go up through the roof — you can't limit raytrace behaviour just to the glass material, it must apply to the whole scene.

You can, for things like hair, override the shading rate for Occlusion, which will help to reign in unruly render times. 

And simply using Progressive ON does make a vast difference...the new raytrace 'hider' (internal 3DL speak) is OFF by default.  Using Progressive ON enables it...and 5x or more speed increase for raytraced effects is common (2x is typical)! Enabling the raycaching(...which needs to be done with scripted rendering) can increase that even more!