半球体透视练习

原文链接：https://tabithaannthelostsock.blogspot.com/2025/11/sundry-semi-sphere.html

日期： 2025-11-13
标签： 深度、视点、透视、半球体、空间

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球体（立体形态）是三维空间中的圆形（平面形状）。
半球体是球体的一半。

哪些物体／形态属于半球体？
当半球体位于你视线上方或下方时，其外观如何变化？

你的视平线高度如何影响物体的呈现？
位于视平线上方时？
位于视平线下方时？

距离你眼睛更远时？
距离你眼睛更近时？

课堂项目：

1. 尽可能多地创意联想出属于半球体的各种形态。
   完成配套练习纸。

2. 从上述形态中任选一种物体，或组合多种不同物体用于本项目。
   共需绘制六个半球体。
   须分别呈现它们在不同视点高度或空间深度下的形态。
   透视要求

视点高度（Eye Levels）：
视点高度指你向上、向下或平视的方向。
它关乎物体相对于你视平线的位置——是在视平线上方、下方，还是正对视平线。

1. 视平线上方——虫眼视角（Worm’s Eye View）
   如果你曾在我初中美术课上学习过，可能已接触过这一视角……

https://tabithaannthelostsock.blogspot.com/2020/11/worms-eye-view-city.html
https://tabithaannthelostsock.blogspot.com/2015/09/desert-sky-worm-eye-view.html

2. 视平线下方——鸟眼视角（Bird’s Eye View）
3. 视平线高度（平视）

空间深度（Depths）：
深度指物体距离你眼睛的远近（前或后），
与物体在视平线上方或下方的位置关系较小。

1. 前景（靠近观者，在画面中位置更低）
   远低于地平线，细节更丰富，形体更大。
2. 中景
3. 背景
   位于地平线上，形体更小，细节更少。

评价标准：
- 选择一种半球体形态。
所有六个形态可为同一物体，也可各不相同。
- 构建包含背景、中景与前景的空间关系。
- 运用你的半球体形态，分别表现：
位于视平线上方、正对视平线、位于视平线下方三种状态。

半球体透视练习

Original: https://tabithaannthelostsock.blogspot.com/2025/11/sundry-semi-sphere.html

Date: 2025-11-13 Tags: depth, eye view, perspective, semi-sphere, space

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A SPHERE (Form) is a CIRLCE (Shape)  in 3D.

A SEMI-SPHERE is half of a sphere.

What objects/forms are SEMI-SPHEREs?

How does a semi-sphere change if it moves above or below you?

How does your EYE LEVEL effect objects?

Above your eye?

Below your eye?

Further from your eye?

Closer to your eye?

PROJECT:

1. Creatively think of as many forms that are Semi-Spheres as possible.

DO THE WORKSHEET.

2. Choose one object or different objects to use for your project.

You will beed SIX total.

Show A Semi-Sphere form from these different eye levels or depths.

PERSPECTIVE

EYE LEVELS:

Eye level is about where you look UP , DOWN, or FORWARD.

IT is about how things change based on if they are ABOVE, BELOW, or AT your EYE LEVEL.

1. Above eye level- Worm's Eye View

You may have used this if you were in my class in middle school...

https://tabithaannthelostsock.blogspot.com/2020/11/worms-eye-view-city.html

https://tabithaannthelostsock.blogspot.com/2015/09/desert-sky-worm-eye-view.html

2. Under eye level- Bird's Eye View

3. Eye level

DEPTHS:

Depth is about how FAR BACK or FORWARD something is from your eye,

less about above or below your eye.

1. Foreground (close to viewer, further down on paper)

Far below Horizon, More detail, bigger.

2. Middleground

3. Background

On horizon, Smaller, less detailed.

CRITERIA

-choose a form that is a semi-sphere.

All of them can be the same object, or different.

-create a space of background, foreground, and middle-ground.

• Use your semi-sphere objects to show

above eye level, at eye level, and below eye level.