From b29953ca800d99962b2113e55f03c9e3ccdfb986 Mon Sep 17 00:00:00 2001 From: lmj01 Date: Mon, 25 Sep 2023 09:08:09 +0800 Subject: [PATCH] Update pbr3ed.html --- math/pbr3ed.html | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/math/pbr3ed.html b/math/pbr3ed.html index 5476537..092e541 100644 --- a/math/pbr3ed.html +++ b/math/pbr3ed.html @@ -45,6 +45,22 @@
5.4 Radiometry辐射度学

$$\Phi=\lim\limits_{{\Delta}t \to 0}\frac{{\Delta}Q}{{\Delta}t}=\frac{dQ}{dt}$$

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7. Samping and Reconstruction

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5.2.1 XYZ Color
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A remarkable property of the human visual system makes it possible to represent colors for human perception with just three floating-point numbers. The tristimulus theory of color perception says that all visible SPDs can be accurately represented for human observers with three values, \( \mathcal{x}_{\lambda} \), , \( \mathcal{y}_{\lambda} \) and \( \mathcal{z}_{\lambda} \). Given an emissive SPD , these values are computed by integrating its product with the spectral matching curves \(X(\lambda)\), \(Y(\lambda)\), and \(Z(\lambda)\):

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7.2.1 Evaluating Samping Patterns: Discrepancy
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Fourier analysis gave us one way of evaluating the quality of a 2D sampling pattern, but it took us only as far as being able to quantify the improvement from adding more evenly spaced samples in terms of the band-limited frequencies that could be represented

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Outside of Fourier analysis, mathematicians have developed a concept called discrepancy that can be used to evaluate the quality of a pattern of -dimensional sample positions.

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+ Nvidia应用深度学习研究副总裁Bryan Catanzaro表示，原生分辨率不再是游戏中实现最大图形保真度的最佳解决方案，游戏图形行业在未来正朝着更加依赖AI图像重建和基于AI的图形渲染的方向发展。 +
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