(Fig.11) In order to light the room I used seven different colors as well as Vraylight and Direct target. I tried to place the lights in their correct positions to make the scene look more natural. The key lights are placed behind the back of the curtains and in front of the drawing room, respectively. Then, I set the light intensity and changed the color to orange.
(Fig.12) After two days of trying to arrive at a favorable set up in my scene I rendered out the curtain without any glass and observed how the light affected the room. It certainly looked better and the scene was lighter but I wanted to lower the light and therefore added the glass. The result wasn`t bad but was not ideal. I wanted to show the rectangular frame behind the light and tried to render the under curtain and obtain a better result. I put both curtains in the scene and the result proved successful.
Lighting For Night
(Fig.13) I omitted all of the Vraylight and Direct targets and used seven photometric lights, six for the reflective light and one for the Fluorescent light. The average intensity was set to 275 cd. An orange was used for the bounce light and light blue for the Fluorescent. Also in the shape/area shadows tab and the group called Emit Light From, I set the six lights on Point and the other light on Line.
(Fig.14) First I tried to use different Refractives under the Indirect Illumination tab, in the Render Setup dialogue. I tested the primary and secondary reflections. I rendered the scene in four different ways using a white material. In the first one, Primary bounces and Secondary bounces: Photon - I didn't get the desired result. In the second one: Secondary bounces: Brute Force, Primary bounce: Light Cache, the result was better but not ideal. In the third one Secondary bounces: Irradiance, Primary bounces: Photon, things were good but not ideal. In the fourth one with Secondary bounces: Irradiance and Primary: light cache, I got the ideal result. If I increased the light intensity for the key lights, they had an effect on the walls, so I rendered the scene with an average light. Then I used Photoshop to set the brightness and contrast. I used the same render settings to render the drawing room at night.
I hope this proves interesting!