校考素描想拿高分,必须过“手”这一关!
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唐应山教授手部素描讲解
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▲女性的手:光滑柔嫩
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▲男性的手:硬朗,骨点处凹凸明显
人物手部结构
★手的形体结构★
画手首先要加强对手的理解,掌握手的形体特征、解剖结构及其活动规律。
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手分为腕、掌、指三部分,前侧为掌心、后侧为掌背,拇指侧在外,小指侧在内,从侧面看,手部的形体呈阶梯状,腕、掌、指逐级下降,拇指侧厚和小指侧,手部掌背微拱,并从食指向小指一侧倾斜,手腕在造型中十分重要但又极易被忽视,手腕的宽度比其厚度多一倍,在接近手臂处稍窄一些,手指是上粗下细的四方体,不要画成粗细一样的圆柱。
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手由紧密排列的8块腕骨、5块长形的掌骨和14块指骨构成,整只手共有27块骨骼、16个关节。手部的肌肉有拇收肌、拇指对掌肌、拇短屈肌、第一骨间备侧肌、掌侧骨肌、小指对掌肌、小指展肌、掌短肌、掌长肌腱、骨间背侧肌、指总伸肌腱。
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★手部结构的理解★
首先,我们要加强对手部结构的理解,手部的刻画在素描半身像当中,是继头部之外的又一重点表现对象。手的表现能够充分反映人物的动作特点和内在精神活动。
那到底要怎么画呢?步骤如下
在手部训练中,忌一根一根的抠出手部手指;这样看似简单,但实际上是给自己增加了造型难度,正确方法是找出它的大块面,大结构。
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三、塑造
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★★★
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手的表现能够充分反映人物的动作特点和内在精神活动。但由于手指的外形相似,变化又很多,以及年龄的区别,手的表现也是格外不容易的。
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下面这组关于手的素描拥有各种各样的动作和素描手势,每一副都针对不同形态的手部进行了细致的刻画,是学画手部素描的不错素材。
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