Color Mapping

彩色地图

Basic 基础

Color Mapping

彩色地图

Tip: 提示:
Note also the 还要注意Tone Mapping 音调映射 Post Effect, which offers similar (and better-looking via Fotolinear) functions. Post Effect 提供类似的(通过 Fotolinear 提供更好看的)功能

Top left, the over-exposed rendering without Color Mapping. 左上角，没有颜色映射的过曝渲染

Why Color Mapping?

为什么是色彩映射？

Surely you are aware of the fact that an image rendered with GI (and low ray depth) is very bright in some areas and very dark in others. A balanced allocation of color and brightness would be nice in order to be able to achieve a consistent lighting.

你肯定知道这样一个事实: 用 GI (低光线深度)渲染的图像在某些区域非常明亮，而在另一些区域则非常暗。平衡的颜色和亮度分配将是很好的，以便能够实现一致的照明。

Many may think that this can simply be done in Photoshop. Not quite. Most image editing applications can only work with the limited 24-bit or 48-bit RGB interpolation of the much more precise image.

许多人可能认为这可以简单地在 Photoshop 中完成。不完全是。大多数图像编辑应用程序只能与有限的24位或48位 RGB 插值的更精确的图像。

There are two ways to work around this limitation:

有两种方法可以解决这个限制:

Externally: You render / save in 32-bit and edit the image in an appropriate image editing application. 外部: 在32位进行渲染/保存，并在适当的图像编辑应用程序中编辑图像

Internally: You edit the internal rendering’s interpretation; this is done via Color Mapping, which steps in even prior to sub pixel anti-aliasing and offers better results than subsequent HDR-editing. 内部: 你可以编辑内部渲染的解释; 这是通过颜色映射完成的，它甚至比子像素反走样更早，并且比后续的 hdr 编辑效果更好