{Solved} Dark object rendering [Light does not catch it]

stevejinta

Hello, I have adjusted some parameters (Light,Camera,Shader) but they did not work out the way I want

The first picture is an object on viewport with texture shaded.

The second is a rendered one, there are lights on the object but it just too tiny (this is a thread, help please)

The third is when I change to "Dome and Scene" then rendered. Most of the time I stay on "Scene Only"

The forth one is with "Filament(PBR)" on viewport, this is what after render suppose to be for the finish result 

so, any suggestion would be great

regard,

Steve

Catherine3678ab

I'm not using Filament. I do render in Iray. One of the easiest ways to get some decent light on targets is by making some "spheres" [under the Create menu]. You can create one, after fixing it to be light, make instances of it and rearrange those instances wherever you please.

On the surfaces tab, select Emission and change the colour to white. More options appear, adjust a few. Then on the geometry dial, set opacity to something like 0.00001.

The further away the light source is the softer the shadows edges might be. [just like real life lighting]

charles

What is the lumes, intesnity and if it has a cm^2 factor what is that? Try putting a spotlight on it at 3000+ lumes. Another thing to try is checking the object shaders, maybe make sure they are set to uber shader and test a different shader on it. Also check to see what the tiling is set at. I've found weird instances if the tile is set to really high it can do similar to that. Oh and last thing was this an import? If scaling is really whaco it can do weird things like not cast shadows.

 

Fishtales

The reason you are getting the brightness in the third image, Dome and Scene, is because you are getting the dome reflection off the gun. The second render, Scene Only, isn't getting enough light from the lights to get a lot of reflection, there is some. To get more light and reflection from the gun either move the lights closer, increase the area of the light and/or increase the Lumen. The lights also look as if they are in front and below the gun, try moving them up and to the side so they are actually reflecting off the gun. The rest of the gun is black because there is nothing for it to reflect except the black background.

stevejinta

I think I found the fix guys. First and Second pictures are rendered by other shaders. Third one is likely rendered by those shaders from the last picture.

so, the next question is why is that? why these shader will not cast light the way they do on the "Filament(PBR)" in viewport. Just curious.

Thank you Catherine3678ab, charles, Fishtales 

Regard,

Steve