Blogs

reference http://alvyray.com/Pixar/documents/Pixar_ImageComputer.pdf https://ohiostate.pressbooks.pub/app/uploads/sites/45/2017/09/pixar-image-processor.pdf Pixar Image Computer What inspired me to write this article is that last month, March, I took a quick look at The Renderman Companion A Program’s Guide To Realistic Computer Graphics, which mainly describes how to use the Renderman C API interface to achieve 3D image rendering. The book was published in 1989, when Pixar had developed the Renderman rendering interface standard and implemented the PRMan PhotoRealistic Renderman implementation that is now widely used in the film industry. One of the interesting things is that in 1986 Pixar also developed a computer graphics hardware system similar to today’s Nvidia general-purpose graphics cards - Pixar Image Computer. ...

I recently read the blog post Risk Allocation Framework by Eric Xu, which also made me think about my own risk resistance , especially in the face of uncertain events that occur. In 2021, my main focus is on quantitative finance. Although the quantitative field sounds advanced to the layman, most commercial companies generally do not disclose algorithms that can be profitable directly in the market, and it still takes some coincidence and opportunity to profit from publicly available algorithms. In my opinion, no matter how many times your earnings, one thing you always have to consider is how to bear the risk, if you invest in a stock, the beginning is a lot of earnings, and finally because of market volatility factors lead to all your earnings to zero, and the cost also fell to 90%, this time how do you talk about profit. In the field of investment you can survive for how long, it shows how high your ability to resist risk, do not let yourself out easily, once out, you will never have the opportunity to enter the profit. ...

Review ETH2.0 Phase0 BeaconChain Blog In December of 2020, ETH went online with the 2.0-0 stage beacon chain, the underlying application of ETH 2.0 Proof of Stacking (pos), which is not like the ETH 1.0 main chain that is running now, there is no smart contract nor account management on Beacon Chain, its main function is the 2.0 consensus mechanism, users protect the security of the whole 2.0 main network by pledging. In stage 0, users can only pledge ETH tokens and cannot run contracts or transfer money. ...

Paper Deep Learned Super Resolution for Feature Film Production Learning Recently I have been learning about 3D modeling rendering and production, and I saw a paper about Pixar’s release in 2020, the main content is about how Pixar’s internal engineers and developers use deep learning to improve the resolution of rendered images, fine rendering of a 4k image frame may consume a lot of capital cost, if the final rendering of 2k resolution image then use deep neural network to boost it to 4k, the image is more detailed and richer, then it can help companies reduce a lot of the cost of rendering. Unlike the previous image super-resolution enhancement model, the film industry typically uses images that contain data with high dynamic range of lighting, and true reproduction of color, which makes the current mainstream super-resolution models simply unusable in the film domain. This is an area of interest to me at the moment, as using deep learning for industrial applications is more practical than theoretical. ...

The violin that won the silver medal at the 2021 Italian Triennale, made by Piotr Pielaszek, was photographed and documented by me using a BMPCC camera. Youtube: Bilibili: