I cannot get any lighting from the Ambient Light Source while in RedSDK Draft Rendering mode.  If I switch to Open GL, then the ambient light works.

The other light sources, Spot, Point, etc., seem to work okay.  When I have Ambient only, my model is completely dark.

This works the same on this laptop and my more capable desktop computer.

Am I missing something or is this how the program is supposed to work?

AMD A10-4600 APU Radeon HD 2.3 GHz
16 GB Ram  Windows 7 Home Premium SP1
Turbocad 2016 64b  Version 23.2 build 61.2

Go to "Options / RedSDK". In the "Draft Render" section, increase the "Ambient" value; try 70 (though 100 looks better).

I cannot get any lighting from the Ambient Light Source while in RedSDK Draft Rendering mode.  If I switch to Open GL, then the ambient light works.

The other light sources, Spot, Point, etc., seem to work okay.  When I have Ambient only, my model is completely dark.

This works the same on this laptop and my more capable desktop computer.

Am I missing something or is this how the program is supposed to work?

AMD A10-4600 APU Radeon HD 2.3 GHz
16 GB Ram  Windows 7 Home Premium SP1
Turbocad 2016 64b  Version 23.2 build 61.2

Yes,
something changed in 2016 and 2017 when using material. I don't know if it's a bug or as designed.
V21 and 2015 work as expected with ambient light and material.

what I found is that the +redsdk materials work with the ambient light. 
If you have any cut outs the Brass+Redsdlk works good, working the inner and outer color.

This only helps if you're working with color 

I think John R was referring to pen color...

Something happens when the sun was possible to use/ Adjust in Enviroment some time back, after that i need to up  the sun in Geo sun to see the shadows, i did report it back then.

Torfinn

<<<……

…This only helps if you're working with color 

I think John R was referring to pen color...

When trying this out, I was only using my available “pen colors”. I don't have those fancy RedSDK materials. My preference has always been LightWorks.

Thanks, everyone!

I tried models with line colors and with materials.  I also tried changing the Ambient RedSDK setting to 100 in the drawing setup.

In all cases, ambient lighting is not available in draft render view.

Though it is unfortunate that it is unavailable, I will use other light sources for draft render.  Draft render is fast and works well for my current project.

John Earl

TC 2016 Pro Plat 64b ver 23.2 build 61.2 RedSDK
Intel i5 6500 3.2G 8GB Ram Win7 Pro 64b SP1
MSI Z170-A Nvidia GTX960 Asus 27" 2560 x 1440