Vray Light Material - Illuminate without GI

[cum. m+d]

Hey guys, i didn't have time to really test this proper so this question might be simple.

I have an object that is emitting light from all four corners. To simulate this, I initially used a Vray rectangle light with double sided turned on. This worked except for one issue, it left a visible shadow right at the line of the area light. This caused a shadow line all around the objects surrounding it. However, its supposed to be more like a multicolored light bulbs (in a way) surrounding the objects corners so it should not have this area that is missed.

To simulate the effect properly, I switched to vray light material, however, when I do it this way, the scene isn't illuminated. I have to activate GI which increases render time and honestly, I am worried it'll flicker.

Is there something I missed? Do I really need GI for Vray light material to work? Thank you!

[vlado]

You can create a mesh light (Create > V-Ray > Turn mesh into light). GI would still be useful to reduce the noise a bit.

Best regards,
Vlado

[cum. m+d]

Hello Vlado,

Thanks for the advise. When I did that, the colored ramp texture did not work. It is connected however, the light source renders pure white.

I intend to have an animated texture illuminate this light source so I will probably connect animated jps or tiffs after

[Zdravko.Keremidchiev]

I switched to vray light material, however, when I do it this way, the scene isn't illuminated.

If you want VRayLightMtl to illuminate the scene without the use of GI you need to enable its direct illumination option.

I intend to have an animated texture illuminate this light source so I will probably connect animated jps or tiffs after

If the intensity of the light is higher than 1 it is normal to get burn-out textures. Would it be possible to send us an example of the effect that you are after.