Question

The schematic plan, front elevation, and side elevation, of an office building block are given below. The direction of the incident sunrays is indicated as ‘S’. Sketch the shading and shadows that would be generated by the sunrays in the view of the building block provided in Figure J.

Hint:

When drawing shadows, always determine the direction of the light source first. Then, identify which surfaces receive direct light, partial illumination, or remain in full shadow.

Answer 1

Step 1: Understanding light and shadow projection.
- The sunlight is directed diagonally from the top-left, as indicated.
- Elevated or protruding elements will cast longer shadows, while recessed areas will remain darker.

Step 2: Identifying shadowed regions.
- The surfaces facing left and top will receive the most light.
- The right and bottom surfaces will experience the most shading.
- Overhanging elements and recessed spaces will create deeper shadows beneath them.

Step 3: Applying shading techniques.
- Darker tones should be used for shadowed areas.
- Apply gradual shading to depict soft, diffused shadows.
- Use sharp contrasts to emphasize cast shadows and enhance depth perception.