Use patterns behind shapes or large areas to add contrast and create an illusion of texture and depth.

形状或大型区域后的图案用于增加对比度和创建一种纹理和深度的视觉效果。

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Perceived strength of illusion was also measured in grids at suprathreshold contrast levels.

感知强度幻想也衡量电网在阈上的对比度级别。

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Rybakken 's idea was to create an unconscious feeling as he expands the room and minimizes the contrast to only create an illusion of natural daylight.

Rybakken的想法是创建一个无意识的感觉，因为他扩展了空间，最大限度地减少了对比，只有创造一个幻想的自然日光。

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However, these feelings never lasted long, because the shot would switch to another camera position which had worse contrast, or greater lens distortion, or shallower depth of field, and the illusion would be broken.

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