Menggambar Konstruksi:Perspektif dengan Pencahayaan | Video pembelajaran kls 9 | Kurikulum Merdeka

Summary

This video lesson focuses on drawing perspective constructions with lighting, aimed at 9th-grade students. The tutorial explains how to create drawings using one or two vanishing points while applying the concepts of shading and shadows. It covers the definition of shadows, the nature of light, and its effect on objects. The video guides students through steps to draw 3D objects with realistic shadows by determining light sources and angles. Additionally, it highlights key characteristics of shadows, such as their formation, color, and varying sizes based on the distance from the light source.

Takeaways

• 🎨 The video focuses on a lesson for 9th grade students about drawing perspective constructions with lighting.
• 📏 The main goal is for students to learn how to draw perspectives using one or two vanishing points, and apply concepts of shading and shadows.
• 🌳 An example shows a tree with its shadow and people at the beach with their shadows, illustrating how shadows form.
• 🌑 A shadow is described as the dark area behind an object where light is blocked by that object.
• ☀️ Light is essential for seeing objects, and it moves in straight lines. On Earth, the main source of light is the sun, but lamps and other artificial lights are also important.
• 💡 The angle at which light hits an object directly affects the creation of shadows, with direct light forming shadows and hidden areas forming shades.
• 📐 Steps for drawing perspective and shadows include creating a 3D object, determining the light source, and drawing lines from object corners to show shadow directions.
• ✍️ To create the shadow, connect points where shadow and light meet and shade the appropriate areas.
• 🖤 Key properties of shadows include that only opaque objects create shadows, shadows are always on the opposite side of the light source, they are black, and their size varies with distance from the light.
• 🙏 The video concludes with hopes that the lesson was helpful, wishing viewers well for the next video.

Q & A

What is the primary focus of the video lesson?

The primary focus of the video lesson is to teach students how to draw perspective constructions with lighting and shadows.

What is the learning objective of the lesson?

The learning objective is for students to be able to draw perspective with one or two vanishing points by applying the concepts of shading and shadows.

How is a shadow formed according to the video?

A shadow is formed in the dark area behind an object because the light is blocked by the object.

What role does light play in making objects visible?

Light allows us to see objects because it reflects off surfaces and creates boundaries visible to the human eye.

What is the primary source of light on Earth?

The primary source of light on Earth is the sun.

Besides the sun, what are other sources of light mentioned in the video?

Other sources of light mentioned include lamps inside the house and desk lamps for studying.

What is the process for drawing shadows in perspective drawing?

The process includes creating a 3D object, determining a light source, drawing lines from the object's corners towards the light source, marking the intersections of these lines, and shading the area where the shadow falls.

What are some characteristics of shadows as explained in the video?

The characteristics of shadows are: 1) Only opaque or dark objects can form shadows, 2) Shadows form on the opposite side of the light source, 3) Shadows are always black, and 4) The size of a shadow varies based on the object's distance from the light source.

How does the distance between an object and the light source affect the size of the shadow?

The closer an object is to the light source, the larger the shadow it casts, and the farther it is, the smaller the shadow becomes.

What is meant by 'shading' in the context of perspective drawing?

Shading refers to the technique of darkening areas of an object that are not directly exposed to light, helping to create depth and the illusion of three-dimensionality.