1. First, you need to press the "8" key of the keyboard, which is the shortcut key of ambient light, and adjust the color to pure white.

2. Prepare the location map and save it.

3. Create an arc to surround the window.

4. Squeeze the arc by 3000→ Add the shell → Isolate → Assign the map → Stand → Select the vr lighting material → None → Bitmap → Find the map → Assign → Find the uvw map in the modifier → Column → Adjust the length, width and height → You can render to see the effect.

5. Create vray lighting for the window →vr lighting → floor plan → adjust the position in the top view. The positional relationship is as follows: Modifier parameters: if it is invisible, it will affect the reflection. Multiplication: (30-40), color: red (196), green (23 1) and blue (255).

6. Add another lamp, and the position relationship is as shown below.