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CGCookie -Photoshop遮挡绘画技巧
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CGCookie – Painting with Ambient Occlusion
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PAINTING WITH AMBIENT OCCLUSION
Ambient occlusion (AO) is best described as the soft, subtle shadowing that appears between close objects and other tight spaces where light can’t easily reach. When emphasized in the painting process, AO gives art a very distinct look — almost like a computer-generated 3D model.
1. After doing a few thumbnails to explore lighting possibilities for the piece, start off by drawing decently clean line art and reducing the opacity. Below that, begin working on the ambient occlusion layer.
2. To render AO, use a soft black brush on edges, and then a hard eraser to clean them up. Slowly work around the piece, fleshing out forms and managing overlap until, eventually, everything occupies a place within the three-dimensional space of the scene. The finished AO layer is set to Multiply.
3. Flat colors are set beneath the AO layer and painted with an opaque brush. Every element of the painting, from skin to clothing, should be on a separate layer. The values used are darker than what will appear in the final piece — this step is intended to simulate how the scene appears when in shadow.
4. Light sources are added, one by one, on Overlay layers above the AO and flat colors. Light is literally painted onto objects with a white brush. Later, they can be adjusted by using the Hue/Saturation window.
5. Once all the lighting is set, the final step is to polish the painting through post-production, the options of which include: over-painting, color adjustment layers, and/or screen effects.
CGCookie— —用环境遮挡绘画
信息︰
用环境遮挡绘画
环境遮挡(AO)是最好被描述为软、微妙隐藏显示之间密切的对象和光不能轻易到达其他狭小的空间。当强调在绘画过程中,AO提供给艺术一个很独特的外观— —几乎就像一个计算机生成的3D模型。
1.后做几个缩略图,以探索这块照明的可能性,通过绘制体面地开始清洁艺术线条和减少不透明度。下面,开始环境遮挡层上的工作。
2.要使岙,使用柔软的黑色笔刷边缘,然后硬橡皮来清理掉它们。周围一片,充实形式慢慢地工作和管理直到重叠,最终,一切都占有一席之地的三维场景的空间内。成品的AO层设置为正片叠底。
3.平颜色是AO层下方设置,一个不透明的笔刷涂上。这幅画,从皮肤到服装,每个元素应当在单独的图层。使用的值是比什么会出现在最后一块暗— —这一步骤的目的模拟现场在阴影中的显示方式。
4.光源是补充说,一个接一个,对堆焊层以上AO和单调的色彩。光从字面上涂上用白色画笔的对象。后来,他们可以通过使用色相/饱和度窗口调整。
5.一旦所有的照明设置,最后一步是波兰通过后期制作,其中选项包括绘画︰过度绘画、色彩调整图层,和/或屏幕效果。
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