When you can match the lighting that you would like to create with something else, you are going to have an easier time creating your lighting. Make sure you have a lot of lighting references. No matter what you are creating, you need it to be convincing when you render it out. When lighting a scene there should always be a few things you should look out for. Keep in mind the mesh lights ignore smoothing on your meshes. Adding an exposure of 8 or more keeps the light visible.
Select the OBJ, and under it's attributes go to the Arnold tab, and change Arnold translator from poly-mesh. to light mesh. Mesh Light: This source will turn any object into a light. If there are multiple windows and doors in your scene, make sure you create a light portal for each one. There are options on this light for exterior and interior-only. Always position this light source over the windows/doors, and always make them slightly bigger than the opening. This source will also increase the light bounce in the scene. Light Portal: Reduces noise in interior scenes, and also is used for areas where light comes through. Remember to adjust only the exposure on this light for the best results. If you are plugging in an HDRI into this light source make sure you change its color space to RAW. Skydome Light: (HDRIs insert these here) Used for photo realistic rendering. If you were to add other lights +/or an ambient light the room will never be completely dark, as ambient lights increases the overall light in the room. This light works best in a combination with other lights. The shadows from this light source will not be completely black, and this source will create a wash of light. This source is also directional.Īmbient Light: This creates bounce lighting in the room. Keep in mind that scaling the light will increase the sharpness of the light source, and move it closer to the object. You can increase the intensity of this light source by either scaling the light, or manually increasing the intensity. Depth map shadows do don't work with this source.Īrea Light: Replicates light as if it was from a soft box. The shadows from this light source will change with the direction of the light.
This is the best type of light for sunlight. Has no cone angle or Penumbra.ĭirectional Light: This source acts like a spot light, but it evenly illuminates the scene. The light will illuminate in all directions from the point source.
Point light: This source is supposed to replicate a light bulb in the room of your scene. It includes modifiers such as: Color, Intensity, Emit Specular,Decay Rate, Cone Angle, Perumbra Angle(softness of the edge of the light), Drop-off(Light intensity falloff) Spot Light: This light casts light in a cone shape.
For VFX Artists, Lighters, or Rendering Artists.
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