[flow_default] Transcription: 02. Tone Mapping I.json

transcriptions/02. Tone Mapping I.json

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+{
+  "audio_file": "02. Tone Mapping I.wav",
+  "text": "In this video, I'm going to talk about tone mapping or color management as we have it called in Blender. I've briefly touched upon this topic in the previous chapter where we talked about rendering, but now let's get into it. So as you can see, I'm in the Compositing tab here. Let's click Use Notes, remove the render layers and let's import our 32-bit image we have created in the previous video. So I'm choosing it here, connecting with the composite output node and also creating the viewer node. So we can preview the image in the back. I'm going to press V to zoom it out a little bit and alt middle mouse button to pan it and make it center. So what do we use tone mapping or color management for? Well, basically this settings here enable us to do the very basic post production on the image. So let's start with the looks. We have multiple options to choose from. As you can see, when I change the contrast settings here, the image look also changes. We are able to influence the gamma settings where in general we can use gamma for decreasing or increasing contrast within the picture as well. And exposure is responsible for the amount of light we have in the image. So it basically multiplies the pixel values within our static to the image. Cool thing, as I mentioned in the previous video with 32-bit images is where we go down with the exposure, we still get those light information here. If we go up, again, the shadow information here is very detailed. And that's basically it. I would say as for the color management, what's important here is understanding the filmic and different inputs from within this section. To avoid technical talk, you just have to understand Blender is an animation software at its core. So a lot of inputs you'll find in it will be film related, but for us people doing the architectural visualization, we can just at least here stick to the defaults or to the filmic. The filmic is an color management input that kind of tries to make the tones uniform. So it prevents us from having the overburnt values here as well as having the flat dark values within the shadows, within the dark colors in our image. Filmic also tends to give a little bit more natural image look, even if we change the contrast to very high, it still preserves the values within the highly contrasted tone areas. Whereas if we choose the default look, as you can see, it creates those overburnt areas and we would have to adjust the gamma and exposure settings to get rid of them. As you can see, it slows down blenders quite a bit, but yeah In general also if you use the default values if we set up gamma to 2.2 This more or less gives us the tone balance as with the filmic setup The difference is still we have to pay much more attention into those highlights and shadows in order to avoid the overburnt areas like let's say this one we have here right now so if I switch back to Filmic this won't be happening as you can see. Color management and tone mapping is not only about setting up different looks here and having a ready-to-go result by default from Blender, it actually allows us matching the rendering output to the referenced image and I would like to show you how we can do this in the next video.",
+  "language": "en",
+  "confidence": null,
+  "duration": 283.02
+}