I’ve seen a lot of Youtubers mentioning in their videos that “This took so-so many hours to render” ,and I don’t understand if something is visible as it is before render why is it so much time-consuming to extract it in that form itself without rendering. I know I might be sounding so dumb but I really need to know how things get rendered be it a video or VFX shots.
Thanks.
In: 2
In short, there’s a ton of math involved. Briefly, to render a scene, you have some mathematical model of what is in the scene, the objects, lighting, light sources, reflectivity, etc. Then, the rendering program calculates what you see at each pixel in the rendered image of the scene, tracing the virtual ray of light backwards to see what it hits and figure our what color that pixel will be. It hit the red ball, but it’s kinda shadowed from the light source, so it’s a dark red color. Then it does that for the next pixel and so on. It’s all math. 🙂
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