...及到了矩阵的求逆操作,我想问一下,你们通常是在那个空间中执行光照计算,书上说在OpenGL 和D3D自身都是在剪切空间(Clip Space)中完成光照计算。
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First, let's start off by just transforming the plane vertices into clip space and setting their texture co-ordinates.
首先,让我们将经过变换处理的平面顶点放入到裁剪空间里,然后设置其的纹理坐标。
The vertex positions are transformed from clip-space to window space via the Perspective Divide and the Viewport Transform.
经过视角除法和视口变换两步,顶点的位置就从裁剪空间变换到了窗口空间。
Computing the semantic similarity of sentences by the method of cosine, eigenvalue come from the skeleton semantic clip, and the semantics of sentence expressed the vector space model.
用骨架语片做特征项,用空间向量模型表示文本语义,用语片的出现频度做语片权重,用余弦法计算文本间语义相似度。
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