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Texture Area

  • What makes a good seed image?

    A good seed image should have a reasonable number of repeated elements, either structured (for example bricks along a wall) or unstructured (for example pebbles in the ground). In both cases the more elements in the image the better as it allows PixPlant to extract and generate more visual variety.
    A good seed image should also avoid strong luminosity contrasts; however you can correct these contrasts up to a point with the Equalize Seed setting.
    It should also have its repeated elements as aligned as possible with the image sides, but this can usually be corrected with the Straighten Seed tool.

  • How can I improve the seamless tiling quality of generated images?

    You should usually prefer seed images with lots of repeated elements (see What makes a good seed image? above), so that PixPlant has enough variety to generate the image. The following actions can improve the seamless tiling quality of the generated image:

    • Use the Seed Wizard window to make sure the elements in the seed image are aligned with the image sides. Due to lens/perspective distortion or simply because the image was taken at an angle, the image elements may end up with distortions and misalignments which can negatively impact texture generation.
    • PixPlant includes the Select Pattern window, which was designed to solve most problems with seed images containing regular elements (for example a brick wall). Click the Select Pattern button and check if a grid pattern was detected, and if not set it there: the next time you generate, it should tile without problems (make sure "Snap Scale to Seed Pattern" check-box is selected).
      This is only important for structured images (for example bricks in a wall) and not an issue for unstructured textures (for example pebbles in the ground).
    • Check the Equalize Seed: Light and Color settings, which will filter the seed in order to have less light and color variations.
    • If the seed image is not structured with regular repeated elements, select one or more of the Add Seed Symmetry check-boxes, which will allow PixPlant to use symmetric copies of the seed image in order to increase variety. Take care however, that in seed images with regular elements, these settings might create unwanted symmetries in the generated image.
    • Try generating again: each time you generate PixPlant will create a different image.
    • Correct the specific problems by partially generating to the affected areas in the canvas.
  • Why is the Select Pattern button displaying in orange?

    This means PixPlant is not sure about the detected Seed Pattern. It's a way of PixPlant requesting that you verify if the detected seed pattern grid is correct. Having a correct seed pattern is only important for textures with repeated regular elements (e.g. with structure).

  • What's the Snap Scale to Seed Pattern feature?

    PixPlant includes a new setting that automatically snaps the Seed Scale settings to the nearest best value for tiling. This is important so that the pattern elements in the generated texture spatially "meet" at the image boundaries, so as to obtain a good tiling.

    If the Scale Lock button at the right of the Seed Scale sliders is set, both width and height will snap - if you prefer, unset Scale Lock and then change the sliders individually.

  • How can I stop PixPlant from using parts of a seed image?

    In the Seed Viewer area, at the right side of the window, select with the mouse an area that you don't want PixPlant to use - this area will turn dark and won't be used. To make that black area available again, just click with the mouse over it.

  • Can I generate non-tiled images for a large background?

    Yes - simply select "None" in the Tiling option at the bottom-left corner of the window and generate again. You can also generate horizontally tiled images (which are great for panning/scrolling backgrounds) or vertically tiled images, by changing the same setting.

  • How how do I generate to a part of an image?

    In the Texture Editor area select, by pressing the left mouse button, an area that you want to generate to and press Generate. This will rely on the neighbor portions of the image to generate the part that you selected. Generating to a part of the image is very useful for expanding existing images with extra pixels at the sides for example.

  • I'm generating to a small area of the image, but it always generates similar pixels?

    If you always get the same pixels, this means that PixPlant is "land-locked" by the neighbor portions of the image - you can overcome this by increasing the size of generation area till it gives different results. This is usually only a problem when generating to small areas.

3D Maps Area

  • Why do normal maps have to be imported?

    PixPlant keeps a single surface height representation for both the displacement and normal maps. One could think of the the displacement and normal maps as two different views into this same surface. Because of this a normal map needs to be imported (its normal vectors must be integrated) into the underlying height surface and this is what the Extract Displacement from Normal window does.

  • What to do if 3D Preview updates are slow?

    Larger texture and 3D maps will always update slower than small ones as they include more information. First of all, try rendering with lower quality by setting the Quality combo-box to Medium or Low. In the Preferences window, try enabling the Render in Lower 8-bit Precision check-box and decrease the Max Texture Display Size value. If the slow down only happens when you are editing 3D maps, you can increase the Paint Throttle Period in the Preferences window.

  • When painting, 3D Preview updates at a slow frame rate?

    When you are painting a 3D map, the default Paint Throttle setting is to update the 3D Preview every 100 or 200ms. If your GPU is powerful enough do change this setting to a lower value so that the 3D preview updates more fluidly. Please note that this setting only applies when you are painting 3D maps.

Windows

  • "Display driver stopped responding and has recovered" error in Windows Vista or above

    This error may happen on older GPUs (from our experience GPUs released around or before 2010) and when working with large textures (say larger than 4096x4096). Windows issues this error when a GPU shader, such as the ones used in PixPlant to render the 3D Preview, takes too long to complete (over a few seconds). Since most of the user interface drawing is done by the GPU, Windows Vista added a system timeout which when triggered will stop the the GPU shader and issue this error message, so that Windows itself can continue to run.
    Although this timeout can be increased (info on how to do it is here: https://support.microsoft.com/en-us/kb/2665946), it is not of much help because you'd still get a slow and unresponsive interface.
    The main problem is that the displacement/normal rendering shader is somewhat complex and with larger textures this timeout may be triggered. This will probably not happen with smaller textures like 2048x2048 or smaller (or with more powerful/recent GPUs).
    To handle problems like this one, PixPlant includes performance settings that control the quality/performance trade-off. Please try the following:

    1. First of all make sure you are running the latest GPU drivers - this is very important to get the best performance.
    2. In Edit menu > Preferences, go to the Performance tab, and check Render in 8-bit precision. Restart PixPlant and see if it solved the problem.
    3. If the above didn't help, open Edit menu > Preferences, go to the Performance tab, move the Max Texture Display Size slider to a smaller value, like 2048 or even 1024. Restart PixPlant and see if it solved the issue.
    These two PixPlant settings only affect the preview rendering of the texture so you are still editing in floating point precision and at the texture size you selected.

  • PixPlant launches and appears in the Windows task bar but will not appear in the screen?

    For versions before build 3.0.8, corrupted settings can cause this behavior, please do the following to solve it:

    1. Close any PixPlant instances you see in the Windows task bar.
    2. Open the following folder in Windows Explorer, where <USER> is your user name:
      C:\Users\<USER>\AppData\Roaming
    3. In this folder you'll find a file named pixplant3settings.txt - delete it.
    4. Launch PixPlant: it should now appear and run without problems.

  • Why does a "Microsoft Visual C++ 2013 Redistributable" window appear during installation in Windows?

    This is a Microsoft installer which is run with the PixPlant installation in Windows: it installs Microsoft files required for PixPlant to run. Windows itself usually includes these files and this will only update them if necessary.

Other

  • How do I install the Photoshop plug-in?

    Since build 3.0.8, PixPlant includes a plug-in for 64-bit Adobe Photoshop or other compatible 64-bit hosts. The Windows installer already searches for Photoshop installations (of known versions) and copies the plug-in to the right locations. To install manually, simply go to the PixPlant installation folder and copy PixPlant3.8bf into the Plug-ins/ folder of your Photoshop installation - make sure you're copying into a 64-bits version of Photoshop as the plug-in is 64-bit only. In Mac OS X, open the installation DMG file and drag and drop the plug-in file into the Plug-ins/ folder inside the Photoshop installation (usually located inside /Applications).

  • Why does the Photoshop plug-in only returns one image?

    The PixPlant Photoshop plug-in will only return changes made on the image that you invoked it upon. This is a limitation of the Photoshop plug-in interface, as it can only receive back into the same (single) image where the plug-in was invoked. As when running as standalone, PixPlant will offer to save any other images you created, before returning to Photoshop.

  • Errors opening a PixPlant Project after moving it to a different folder?

    Build 3.0.9 fixed a serious problem with image files referenced from a project. The image locations were being incorrectly saved and if the project was moved from its original location an error would occur later when the project was opened. Please make sure to update your PixPlant to version 3.0.9 or newer.

  • Can the Freelancer license be used for commercial work?

    The Freelancer license can be used for commercial (and non-commercial) works, as long as the licensee is an individual or one-person business installing the license on an owned computer.