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Luxology Modo 401 Tutorials

Shader Tree / Blend Modes




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For those of you familiar with Photoshop, you have something called Blend Modes inside of Modo. Blend modes allow you to have different layers of images or materials interact with one another so that you can change how they appear in your render. Let's go ahead and quickly create something like a sphere or any shape that you want. Let's go ahead and drop that into your workspace. I'm going to hit the M key and I'll just call this Sphere and give it a color like, let's see, like blue and then let's head over to our Render Tab so we can see what we have. I'm also going to expand the Shader Tree so we can see what's going on here. Now, as you can see, we have our material, alright? We have our sphere and this is the material that's on it. Now, when I click on this material, we see that I can change the color of course, diffuse amount, it's specular and other properties. If I click on the actual words here, you see that we have some blend modes. But we don't really have anything to blend just yet so let's go ahead and add some more layers here. So I'm going to go to Add Layer and I think I'll add Dots. Take a look at what we have here. We have some dots now on top of the blue so why don't we see the blue? Well, that's because if we look at the dots that we have selected, it's also set to Diffuse Color, which the blue materials was also set to. Also, if you look at the opacity, it's a hundred percent so we can take the blend mode here and change it to something else to get that blue back. For example, Add. And these blend modes simply look at the pixels on one layer and interact with the pixels on the layer underneath it. So when I put it on Subtract, do you see what happens here? I have Difference, Multiply, Divide and other functions. Typically when you have something like a multiply, these will darken the pixels. And when you have something like an Add or a Screen, they tend to lighten pixels. Notice the difference there. We have things like Overlay as well. Soft Light, which you can barely see there; Hard Light and these kind of give you a nice saturation here and so does the Dodge function. And we can put that on Dodge. Now let's go ahead and add another layer. So with this guy selected, I'll add another layer. I will add this time, let's see here; let's add a checkmark. Now we have a checker and dots on the original material. So I'm going to take the checker and I'm going to right click on it and turn it into a bump. Now see what we have here? We have the checker pattern on top of the dots with a bump and we can change the blend mode as well to something like Divide and now we see everybody; Hard Light, Color Burn and we can do all kinds of really cool things to get some very interesting results. Keep in mind you can also play with the opacity of a layer as well so you can go to Dots and change the opacity so now I can see more of that blue because I dropped it to 20 percent. This time I'll make it 50 percent. So that is what a blend mode will allow you to do; to take the different layers that you apply to your material and have them interact with one another in some interesting fashions.

Tutorial Information

Course: Luxology Modo 401
Author: Dwayne Ferguson
SKU: 34052
ISBN: 1-935320-79-3
Release Date: 2009-11-04
Duration: 7.5 hrs / 119 lessons
Work Files: Yes
Captions: Available on CD and Online University
Compatibility: Vista/XP/2000, OS X, Linux
QuickTime 7, Flash 8

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