现在,视差贴图是专门术语。
视差贴图同样使用了这样的切线空间的概念。
Parallax mapping USES the concept of tangent space in the same manner.
视差贴图是一种计算开销不大的,近似2d效果。
Parallax mapping is a computationally inexpensive, approximate 2d effect that.
现在,让我们通过几幅截图来演示下视差贴图的作用有限的原因。
Now, let's demonstrate why parallax mapping is useless in practise with a few pictures.
不一般的视差贴图,要集合良好的演示技术,特定布景,对象纹理和观察视角。
It is one of those techniques that look good in tech demos, papers with specific scenes, textures and viewpoints... but not in general.
视差贴图技术的过程有以下要求:对每个像素都做处理中,一个贴图坐标能被多张贴图使用,并且能做一些偏移。
The process of parallax mapping requires that, for each pixel drawn, a texture coordinate, used to index one or more texture maps, be corrected by some displacement.
视差,高度,细分或环境遮蔽贴图将被转换到R8格式。
Parallax, height, tessellation or ambient occlusion maps will be converted into R8 format.
这样的简化可以让贴图在低视角的时候看起来比较好,但是这也会也减少视差效果,不过这并不像它听起来这么糟。
This simplification keeps textures looking good at shallow angles, but it also reduces the parallax effect, which isn't as bad as it sounds.
这样的简化可以让贴图在低视角的时候看起来比较好,但是这也会也减少视差效果,不过这并不像它听起来这么糟。
This simplification keeps textures looking good at shallow angles, but it also reduces the parallax effect, which isn't as bad as it sounds.
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