![]() ![]() You can read a nicely detailed description about this material creation workflow here: PBR stands for Photorealistic Based Rendering, it’s been standard for Architecture Visualization for a long time, but it is now being widely adopted by other industries relying in computer graphics. In this tutorial we are going to turn a photo that we found online, into a seamless texture that we can use as Base Color for a PBR material. Seamless Texture Creation with Krita īy João Queiroz e Lima Introduction ![]() 1.9.2 Removing Prominent Features and Details.1.9 Removing Seams and Exceptional Features.1.8 Save a Duplicate of Your File and Merge Layers.1.4 Preparing Image Geometry – Vertical and Horizontal Guides.1.3 Setting Up a Shortcut for Wrap Around Mode.1.2 Opening File + Activate Wrap Around Mode.You might need to fill in the rest of the texture where the rock was removed, but this could help with making the image more seamless. For instance, if there's a texture of dirt with a rock on the edge of the picture, using various feature detectors such as difference of Gaussians could help you identify this rock and remove it before you do the tiling. The idea here would be that you keep important features intact as you attempt to tile your textures. You could use various computer vision approaches as well. Of course, high frequency data won't be seamless, but you can remove that with other algorithms. ![]() Poisson image editing can help with this if you break up your image and use the various pieces are foreground and background objects.Ī simpler approach is to create a low-frequency (e.g., mipmap) of your texture and then remove the gradient of your image. Gradient correctionĪnother way to handle seamless textures is to remove the gradient. There are extensions of this algorithm including PatchMatch (which was used in Photoshop). Otherwise, you might not find good matches. Also, if the subset of candidate patches is too large, then you'll get repetition. The larger the overlap, the better the match, but the more likely there will be repetition. The amount you overlap each patch also has a large impact on quality. If the texture is grass for instance, then it can perform poorly. My experience with this algorithm is that it works well for many textures that have round details. You then perform minimum cuts along the overlapping regions. You fill in the texture by first randomly picking a subset of patches from your total set of patches and picking the one with the least amount of error when you overlap the patch with it's neighboring patch(es). The idea behind this is separate the texture into a bunch of patches. ![]() One of the most popular algorithms is image quilting. This example isn't the best, but you can get decent results with results with certain texture types.Īlternatively, you could do a minimum cut on the edge here by overlapping the image with itself, and then taking the difference between the two images. Naive blur along edgesĪs an artist, one way to make seamless textures is to offset the image in two directions. This answer may not be complete because it's a large field, and different approaches will have various effectiveness depending on the input image. For example, you could regenerate the sides of the texture to achieve a seamless effect. That doesn't mean you have to generate the whole texture from scratch. For these types of algorithms, you usually have to rely on multiple forms of texture synthesis. ![]()
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