Onshape render lighting help?

MichaelPascoe

Having issues getting the lighting to apply to a face or a part. Does anyone know how to get the lighting material to emit light? @GregBrown I have moved the question to here. 

I have tried changing the environment in case this scene was too white. Anytime I get the lighting to work, it is never a glowing light, only a white color. Also tried assigning the light material to a part instead of a face.

Thanks in advanced! So excited for Onshape rendering.

Here is a link to the document:
https://cad.onshape.com/documents/6c4ae7073bbb41d485299a31/w/a75a42c352a4a591769b844c/e/45fdcd609bd61e6c1bb3860d

NeilCooke

NeilCooke

MichaelPascoe

@NeilCooke I must be doing something else wrong too. 

NeilCooke

Try an "emitter" material instead - you'll also have to tweak that bloom threshold number. I also struggled to get diffuse light to bloom.

EDIT: actually I can get diffuse light to work if bloom radius is 0.05 and threshold is 500000

MichaelPascoe

Many thanks! With the original bloom options you suggested, I got it to work by adjusting the settings for "Cool White 7000k Emitter". 

andrew_kleinert

Thanks @MichaelPascoe and @NeilCooke for this, good resource to get started with creating a light source. 

To add to the topic ...

I found that the "Add Emission" environment to be a little more flexible, allowing the colour to be selected.

Assign "Add emission" environment

Typically the material will first appear black meaning that the light source is "off" (or a low value lumens indicating that it is as good as "off")

Under Appearance -> Global, I set the "unit for emission" to "lumens" (to be consistent with the emitter environments above)

Set the lumens to a big value (eg: 1000, 10000, 100000) to turn the light source "on"

The colour selector  in the Appearance -> Global dialogue is fairly self explanatory.

As you can see below, some of the colour rendering can be a bit funky for curved surfaces + low lumens values (the part being rendered below is a singular homogenous part) - haven't figured out what's causing that but it's not holding up my work.