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Imke Loyack
Because there is bug, which according to developers has very low priority. In Cycles render settings, change your tile size to the resolution of your texture. So if you are baking 4096x4096, change the tile size to 4096x4096 (although perhaps try 2048x2048 first, just to be safe). You should get immediate increase in baking speed.
By setting the tile size to your baked texture resolution, you should get about 17x faster rendering. So those 14 hours should be more like 45 minutes Non the less, I would be careful trying that with 8k textures, as 8k tile will take quite a lot of GPU memory. 4k tile size is still relatively fine, taking about 2.6GB of GPU memory.
So, at 4096 tile size, it takes me about 5 seconds on my GTX1080Ti to bake 4k emission map of a noise texture:
image.jpg19201163 558 KB
And about 16 seconds to bake two AO maps for convex and concave edge masks. Those require a lot more rays to be traced, so 16 seconds is a really good result:
image.jpg19201162 639 KB
Just keep in mind that it may not be a good idea to universally set tile size to baked texture resolution, because sooner or later someone will show up and try to bake 8k textures with some GPU that has like 3-4GB of VRAM
Anti-Seam is a Free Addon that removes texture seams from any image with a single click! No more hours spent removing seams from image textures, simply select an image, apply Anti-Seam, tweak and you're done!
As a quick test I hacked the current Texture Image node to have an extra input socket where you can plug in another Texture image node to override the image data and this works like a charm. Makes texture mapping/texturing nodegroups much more reusable and simple.
When I need to change the main texture, I need to change it in all the nodes inside because there is no input slot in the image texture that could make it fit for a procedural workflow in the group nodes.
My answer to this similar question: "How to delete unwanted/unused parts of texture?" may help, specifically the YouTube tutorials I mention. I used them to learn how to perform the operation of Texture Unwrapping and Baking, which results in the output you desire: keeping only the referenced parts of the texture and efficiently island-packing the remaining texture file.
I myself had to perform such operation in Blender, where I received a cropped .obj mesh as input which was referencing a texture file that contained extraneous data that was no longer needed in the cropped mesh. To decrease the size of the texture file such that it contained only the needed textures, I followed the above tutorials. In the process, I wrote down the steps I took in the Blender GUI to accomplish the Texture Unwrapping and Baking task, as well as automated the laborious process by using the Blender Python API. In case it helps, the detailed steps I took and their Python counterparts can be found in this Github repo file which I reproduce below in case the link breaks.
In shader view, to create new node: shift+a > search > image texture >new > name: test_texture (4096 x 4096) (Reqs 7-9 GB RAM). Maybetry something smaller like 2K (2048x2048) (reqs 4-6 GB RAM during baking)
In shader view, create another uv map > connect it to existing texture,and select the exisiting UV map from the drop down menu to show blenderthat the current texture uses the current uv map. At this point, thereshould be 3 new nodes in the shader view
I read this question 3 times. I know what youre having: shadow uvs. Yeah, bisecting is a special boolean case. Id strongly recomend you re-unwrap. It will only take a second. Baking textures: yes, you can do that as well, youll also get the old UV set. Got to object properties> vertex groups> Uv coordinates, delete them both vertex groups and coordinates. Then Un-wrap. Then bake old bisected to new unwrapped. Should work out of the box.
I am following a tutorial ( =t2XjdzzWCqI @ 11:54) and it would appear that I am missing a vanilla node called Noise Texture, used to add "random" colour variety into textures.I have pressed Shift+A to bring up the node search menu and not found a Noise Texture. I have selected the Materials button, so that alone cannot be the issue.
I use blender to create and texture models, I used to use 2.79 but I've recently upgraded to 3.3. I kinda assumed that reloading of textures would have been a feature in 3.3 as it's something that is done constantly. Is there an option in blender for this or failing that is there an addon available that will monitor the texture and reload it if it has changed?
I am pretty sure GLB in lines textures right into the file though. If you referred to using the .babylon exporter on 2.92, that might be a little bit premature. The last production version of the exporter was tested on Blender 2.83 LTS. I am in the process of getting the changes done for 2.93 LTS. I do not bother with the throw away Blender releases.
Yes, glTF does have magical texture file compression that was just announced. You can find more information here: Khronos KTX 2.0 Textures Enable Compact, Visually Rich, glTF 3D Assets - The Khronos Group Inc. From there, you can get to this page: KTX Overview - The Khronos Group Inc which has a bunch of links at the top that has information about how to use KTX as well as how to create glTF asset with KTX.
The issue seems to be most likely related to the material node tree in blender, as other have stated.
Usually, in order to export from blender with materials correctly most tools require the node tree to end in a single Principled BSDF shader node connected to the output.
Materials like glass, or more complex stuff usually requires mixed shaders, which should probably baked down to PBR texture maps.
Importing the glb file directly into Playground works and includes the textures, but when I import into blender, no textures are seen in the viewport. When I then export the Blender project back as a .glb file and import that into the Playground the textures are not present either. Thoughts?
Under the vertical tabs on the right - in your image the top one is "Transform" followed by "Grease Pencil" and "View" - Further down is a "Shading" tab and in that tab is a "Textured Solid" check box - that should be checked. Past this I usually fumble around until it starts working but what I think I do is setup a material and texture - At the very top right of your screen shot is a row of icons starting with a camera - the last one, a two color sphere, is material and the next one (off screen) is textures. I think I check "UV Project" under material. Under Texture I set type to "image or movie". Somewhere in the area there's an option to set a file name to the file name of you texture.
Under the vertical tabs on the right - in your image the top one is "Transform" followed by "Grease Pencil" and "View" - Further down is a "Shading" tab and in that tab is a "Textured Solid" check box - that should be checked. Past this I usually fumble around until it starts working but what I think I do is setup a material and texture
- At the very top right of your screen shot is a row of icons starting with a camera - the last one, a two color sphere, is material and the next one (off screen) is textures. I think I check "UV Project" under material. Under Texture I set type to "image or movie". Somewhere in the area there's an option to set a file name to the file name of you texture.
u can use youtube and find out how to do that, u can type to search blender material to ue5.
or learn the foundation, type to search blender how to bake texture, and how to set material of mesh in ue5.
The Musgrave Texture node evaluates a fractal Perlin noise at the input texture coordinates.Unlike the Noise Texture, which is also a fractal Perlin noise,the Musgrave Texture allows greater control over how octaves are combined.
As we delve into texturing mapping in Blender, we'll guide you step-by-step through digestible lessons. With hands-on exercises peppered throughout, you'll grasp each concept with ease.
By the end of the course you'll understand how to use Blender to add a texture to a model.
Tiled textures can look great up close, but even the best seamless texture looks obviously repeated and fake at a distance. Scattershot instantly fixes that issue with the Voronoi Scatter function, which turns your image textures into a new node that has controls for randomizing every aspect of each repetition of the texture as well as controls for obscuring the seams between each cell.
Scattershot gives you full control over how you want to distribute and randomize your textures with finely tuned, easy to use sliders. Some options require a procedural texture to be added inside the node, so you can always leave those options off during creation so that your shader will be as quick to render as possible.
Scattershot also fully supports textures with transparency, so that you can easily layer the result over any other texture. In addition, you can enable stacked or overlapped transparency so that nearby textures can appear to be layered on top of one another!
We can use texture baking to combine multiple materials from one object into a single material. We could also combine materials from multiple objects into a single material to be used across all objects.
Fortunately, baked texture maps can be universally placed on 3D objects in all 3D software. If we want to take an object into another program or sell it online, baking the materials into texture maps will be required.
Using this method, we bake all of the lighting effects and small surface details in a complicated model. We then apply the baked texture to a low-poly model in the same general shape of the original.
The bake type setting is where we choose which type of map we want to bake. If we are baking a full set of PBR textures, we will have to bake multiple times and choose a different bake type for each map (color, roughness, etc).
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