Window has no reflaction

[Zvi]

Although there is a Glass Window material on the windows they looked just black without reflections of the environment Hdr image, as you can see in the attached image.

[Chad Holton]

I see a reflection in the 1st floor glass. Maybe your HDR has a lot of black on that side. Try a stock outdoor HDR to see if it makes a difference.

[Zvi]

I see a reflection in the 1st floor glass. Maybe your HDR has a lot of black on that side. Try a stock outdoor HDR to see if it makes a difference.

I tried a lot of HDR images, but I have not seen any improvement. Maybe someone can upload an HDR image which solve this problem.

[richardfunnell]

You may want to enable the "Product" Lighting preset. This ensures that you have Global Illumination enabled, as well as a higher ray bounce value.

[Zvi]

You may want to enable the "Product" Lighting preset. This ensures that you have Global Illumination enabled, as well as a higher ray bounce value.

As you can see in the attached screenshot there is already GI and a lot of raybounces.

[Chad Holton]

Hello,

Would you be able to share the scene? If so, please send us the ksp file.  To save  a ksp file:

1.  Open your scene
2.  Go to File > Save Package
3.  Name your file

You can send the file securely via keyshot.wetransfer.com to: support@luxion.com

Chad

[Zvi]

Finally I found an HDR image that causes reflections. This appears to be a serious challenge.























HDR image found suitable, that causes reflections. This appears to be a serious challenge.

[Speedster]

There's another trick, but it may be difficult with an arch model. 

Bring in a vertical plane.  Apply a JPEG of your choice. Move it around until the JPEG reflects in the glass.

Of course the plane has to be just out of the camera sight lines.

Bill G

[Zvi]

There's another trick, but it may be difficult with an arch model. 

Bring in a vertical plane.  Apply a JPEG of your choice. Move it around until the JPEG reflects in the glass.

Of course the plane has to be just out of the camera sight lines.

Bill G

Thank you. But there should be a way to make the plane with the image to be invisible, and to affect only the reflections on the windows, and without shadows.

[guest84672]

Use the emissive material and leave the intensity at 1.

[Chad Holton]

Thanks for sending your file. I just checked it out and see that you're using the default environment, which will not reflect a sky. Are you confusing the backplate and environment perhaps?

Try this:

- Go to the Library>Environment tab and under the Outdoor folder, drag and drop in one of those (to reflect a sky)
- Now, go to the Project>Environment tab, adjust the size and height slider to taste

Also, if you want the glass to reflect the environment a bit more, adjust the window's (glass material) refraction index to a higher value.

Here's my result: