Week 6

In week 6, we started adding and effecting the lighting effect.

2.1 LIGHTING EXERCISE

4. Now rotate the PERSPECTIVE view 180° horizontally so you are looking at the opposite side of 

the dolphin. Note that this side of the dolphin is in complete darkness, because the light source is 

on the other side of the dolphin. You can verify this by checking the position of the light on the 

TOP, SIDE and LEFT viewports.

Exercise 1: Done

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4 SUNLIGHT 

Time: 12:00:00 

Date: 06/09/21 

Location: London. UK 

Time: 15:00:00 

Time: 17:00:00 

The shadow would change if I change the time of the sun. The sunlight would "shine" from a different angle.

Causing the shadow to be different too.

Exercise 2 : Done

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5.1 SELECTIVE LIGHTING EXERCISE

3. Using the EXCLUDE\INCLUDE option, set this light source illuminate ONLY THE 

SKYDOM

Original

 Only illuminate the sky dome.

If I only choose to illuminate the sky dome, the rest of the scene would be dark, this is first because there isn't any light source to illuminate other parts.

As default lighting would switch off automatically since I have added the first light in the scene.

4. Now add sunlight to the scene if it is not already present. Note how the skydome is evenly 

illuminated in those areas where the sunlight is not falling. If you remove the OMNI light which 

is illuminating the skydome, parts of the skydome will become dark

5. By having an OMNI light exclusively illuminating the skydome, and sunlight lighting the 

remainder of the scene, you can create a more realistic effect where the entire sky is illuminated 

evenly and does not rely on light from the sunlight source. You can also use this technique to 

add lighting effects to individual objects in order to gain more precise control over the lighting of 

individual objects.

6. Remove the sunlight and add another OMNI light within the skydome at approx a 45º angle to 

the scene. Change the colour of the light source to a bright red by expanding the 

INTESITY/COLOR/ATTENUTATION panel in the MODIFY tab while the new light source is 

selected. Then click the colour box next to the MULTIPLIER option and select a red colour.

Render the scene and note how the skydome is also coloured red. Try excluding the skydome 

from this new OMNI light source and note the effect. 

The red light would only affect the ground and house, but not the sky dome.

Exercise 3: Done