I know this phenomenon that shadows created by diffuse light sources are often sharpest near the object and become softer farther away, but never think about the reason of it. Now I know this is because the area of light emission is relatively large, causing the shadow to fall off or a "penumbra" gradient-like effect. My experiment result image is as follows:
2008年8月8日星期五
Seeing light as a design tool
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