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Davenport and Woodsmoor

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Samuel Walker
Samuel Walker

Download LUT Spark AR: Create Amazing Color Effects with Meta Spark Studio


How to Download LUTs for Meta Spark AR Studio




If you want to create stunning color effects for your augmented reality (AR) projects, you might want to use look-up tables (LUTs). In this article, we will show you how to download, import, apply, and create LUTs for Meta Spark AR Studio, a powerful platform for building immersive AR experiences.


What are LUTs and why do you need them?




LUTs are lookup tables that change the color of an image




A LUT is a table of RGB color values that maps the input colors of an image to new output colors. By applying a LUT to an image, you can change its overall appearance in just one click, kind of like a filter. For example, you can use a LUT to make an image warmer, cooler, more contrasty, or more stylized.




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LUTs can help you create different effects and styles for your AR projects




LUTs are great tools for creating color effects in Meta Spark AR Studio. You can use them to enhance the mood, atmosphere, and theme of your AR projects. For instance, you can use a LUT to make your scene look like a movie, a comic book, or a vintage photo. You can also use LUTs to match the colors of your scene with other elements, such as textures, materials, or stickers.


How to find and import LUTs from AR Library




AR Library is a collection of free assets for Meta Spark AR Studio




One of the easiest ways to get started with LUTs is to use the ones provided by Meta Spark in their AR Library. AR Library is a collection of free assets that you can use in your Meta Spark AR Studio projects. It includes 3D models, animations, sounds, materials, textures, and LUTs. You can browse and download these assets from the AR Library tab in Meta Spark AR Studio or from the .


You can browse and download LUTs from different categories and themes




In the AR Library, you can find a variety of LUTs that suit different purposes and styles. You can filter the LUTs by categories, such as cinematic, comic, retro, or fantasy. You can also search for LUTs by keywords, such as horror, sci-fi, or sepia. You can preview the LUTs by hovering over them and see how they affect a sample image. To download a LUT, simply click on it and then click the Download button.


You can import LUTs to your project by clicking the Import button




Once you have downloaded a LUT from the AR Library, you can import it to your Meta Spark AR Studio project. To do this, go to the Assets panel and click the Import button. Then, select Color LUT from the drop-down menu and choose the LUT file that you want to import. The LUT will appear in your Assets panel under Color LUTs. You can rename it or delete it by right-clicking on it.


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How to apply LUTs to your scene using patches




Patches are nodes that connect inputs and outputs in the Patch Editor




To apply a LUT to your scene, you need to use the Patch Editor. The Patch Editor is a visual programming tool that lets you create logic and interactivity for your AR projects. It consists of patches, which are nodes that connect inputs and outputs. You can drag and drop patches from the Patch Library or from your Assets panel to the Patch Editor canvas. You can also connect patches by clicking on their ports and dragging a wire between them.


You can apply a LUT to the whole scene by using the Scene Render Pass patch and the colorLUTShader patch




To apply a LUT to the whole scene, you need two patches: the Scene Render Pass patch and the colorLUTShader patch. The Scene Render Pass patch captures the rendered output of your scene as a texture. The colorLUTShader patch applies a LUT to a texture and outputs a new texture. To connect these patches, follow these steps:


  • Drag and drop the Scene Render Pass patch from the Patch Library to the Patch Editor canvas.



  • Drag and drop the colorLUTShader patch from your Assets panel to the Patch Editor canvas.



  • Connect the Texture port of the Scene Render Pass patch to the Texture port of the colorLUTShader patch.



  • Connect the Output port of the colorLUTShader patch to the Texture port of the Device Output patch.



  • Select a LUT from your Assets panel and drag it to the ColorLut port of the colorLUTShader patch.



You should see your scene change according to the selected LUT.


You can adjust the intensity and blend mode of the LUT using the colorLUTShader patch




The colorLUTShader patch has two additional inputs that let you adjust how the LUT affects your scene: Intensity and BlendMode. The Intensity input controls how much of the original image is preserved when applying the LUT. A value of 0 means no effect, while a value of 1 means full effect. You can use a slider or a number patch to set this value. The BlendMode input controls how the LUT is blended with the original image. You can choose from different modes, such as normal, multiply, screen, or overlay. You can use a dropdown or a string patch to set this value. You can experiment with different values and modes to achieve the desired effect.


How to create a picker UI to switch between different LUTs




A picker UI is a native user interface that lets users choose from different options




If you want to give your users the ability to switch between different LUTs in your AR project, you can use a picker UI. A picker UI is a native user interface that appears at the bottom of the screen and lets users choose from different options by swiping left or right. You can use a picker UI to display different LUTs, stickers, filters, or other assets.


You can create a picker UI by using the Picker UI patch and connecting it to the colorLUTShader patch




To create a picker UI for your LUTs, you need the Picker UI patch and the colorLUTShader patch. The Picker UI patch creates a picker UI and outputs the index of the selected option. The colorLUTShader patch applies a LUT to a texture and outputs a new texture. To connect these patches, follow these steps:


  • Drag and drop the Picker UI patch from the Patch Library to the Patch Editor canvas.



  • Connect the Index port of the Picker UI patch to the Index port of the colorLUTShader patch.



  • Select multiple LUTs from your Assets panel and drag them to the ColorLut port of the colorLUTShader patch.



  • Set the Count input of the Picker UI patch to match the number of LUTs that you have added.



You should see a picker UI appear at the bottom of the screen with icons for each LUT.


You can customize the icons and labels of the picker UI by using the Picker UI Icon patch and the Picker UI Label patch




The Picker UI patch has two optional inputs that let you customize how the picker UI looks: Icon and Label. The Icon input controls what image is displayed for each option in the picker UI. The Label input controls what text is displayed for each option in the picker UI. To use these inputs, you need two additional patches: the Picker UI Icon patch and the Picker UI Label patch. These patches output an array of images or texts that correspond to each option in the picker UI. To use these patches, follow these steps:


  • Drag and drop the Picker UI Icon patch from the Patch Library to the Patch Editor canvas.



Drag and drop the Picker UI


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