Description
Gallery
Changelog
Versions
Adds an additional button to the "More" tab of the world creation screen, which opens a preview of the world to be created
This preview has several buttons for configuring the preview. In addition to the configuration options there are four other buttons
- Apply: Applies the preview configuration to the review and generates a new image
- Save: Saves the configuration to the world creation context, preserving things like continentalness and (if not empty) the seed and returns to the "More" tab
- Cancel: Returns to the "More" tab without saving any world configurations
- Current Seed: Displays the seed currently being previewed, clicking the button copies the seed to the clipboard
All Versions
+ Add Version
[2.1.2] TFCGenViewer 2.1.2
by Notenoughmail on Aug 19, 2026
Download
- Update to TFC 4.2.8, which is the new minimum version
- Fix crash with TFC 4.2.8 when trying to visualize in-world
- This version is ***not*** network compatible with older versions
- [API]
IGeneratorVisualizerandIVisualizerTypenow extendISyncRegistrieswhich has#additionalSynchronizationand#elementCodecForRegistry, allowing GVs to specify how a registry is synced#elementCodecForRegistryhas been changed to operate similarly to#additionalSynchronizationto avoid having to deal with type casts- Update
ClimateFeatureCache#codecForRegistryto handle the#elementCodecForRegistrychanges - Add
ITFCGeneratorVisualizerwhich syncs TFC's rock settings registry and is the base of the built-in grid and chunk scale GVs
[2.1.1] TFCGenViewer 2.1.1
by Notenoughmail on Jul 01, 2026
Download
- Update to TFC 4.2.4, which is the new minimum version
- Add colors for the biomes added in TFC 4.2.0
[2.1.0] TFCGenViewer 2.1.0
by Notenoughmail on Jun 13, 2026
Download
- Add the ability to visualize the world at a chunk (16 block) scale
- Has *Biome*, *Climate Restricted Features*, *Elevation*, *Köppen Climate Classification*, *Rainfall*, *Rock*, and *Temperature* visualizer types
- The *Elevation* VT has three elevation bands:
- Low, for elevations below y = 63
- Middle, for elevations above y = 63 and below y = 103
- High, for elevations above y = 103
- Many biome colors have been added to accommodate the biomes now visible with the finer resolution
- Visualizer types now have the ability to draw previews in a parallel manner
- The maximum level of parallelism (concurrent pixel draws) can be configured, defaults to 5
- If previews may even be drawn in parallel can be disabled, defaults to allowing
- Currently, only the chunk-scale *Elevation* and *Rock* (when on at-depth mode) use this
- With this, a configurable timeout for the drawing of a single pixel has been added and is configurable
- Those with weaker systems *may* want to increase this if they notice the log has a lot of warning about pixel draws timing out or previews have lots of empty space
- The preview center and spawn center coords can now be set by clicking on the displayed preview
- Control-left alt clicking the preview will set the preview center
- Shift-left alt clicking the preview will set the spawn center
- The modifier keys for each can be set in the keybinds screen
- All slider and cycle values in the preview screen can now be reset to their default value by right-clicking them
- Add
tfcgenviewer:dark_bluepreset gradient - the seed box of the preview screen now has the hint text present on create world screen's seed box
- This version is network compatible with 2.0.3 through 2.0.1
- [API]
- Add
MutableImage#setPixel(int,int,ColorDefinition) - Add
DrawParallelism, a holder for the canonical parallelism of a preview draw operation - Add
ChunkDataProvider, a pseudo-cache type forChunkDatas ClimateFeatureCachenow has methods to delegateIVisualizerType#additionalSynchronizationand#elementCodecForRegistrycalls toRegionPointCache#isNortherHemispherehas been deprecated in favor ofIVisualizerType$DrawInfo#isNorthernHemisphereIVisualizerType#createCachenow hasO extends $Options<O>andDrawParallelismparameters- With this, the call order of
$Options#copyand#createCachehas been reversed #afterCompletenow has twointparameters for the x and z drawing offset of the image- Add
#timeoutFillBGR, the BGR color to fill a pixel with if the drawing operation times out. Defaults to0 - Add
#requestDrawInParallel, request parallel drawing. Defaults tofalse - Add
#maxLevelOfParallelism, the max parallelism the VT can handle if allowed to draw in parallel. Defaults to10 $Drawinfo- Add
#isNorthernHemisphere, self-explanatory - Add
#pixelResolutionToBlock, a simple delegator to the same method inIScale - Add
#evaluateAtBlockPosition, perform an action at a certain block-pos resolution as determined from the given pixel-resolution coordinates - Add
#settings, a simple delegator to the same method in the chunk generator extension - Add
#rockLayerSettings, a simple delegator to the same method in the chunk generator extension - Move
OptionProvider#withgenericDisplayto$Orderwhere it is called in place of#withDisplay - VT caches which implement
AutoClosablewill now be closed upon completion of an image draw
[2.0.3] TFCGenViewer 2.0.3
by Notenoughmail on Feb 21, 2026
Download
- Fix incompatibility with Sodium's
BiomeMixin - Add the ability to disable (and re-enable) the permissions system outright, allowing full access when disabled
- This can be done using the
/tfcgenviewer disable_permissionsand/tfcgenviewer enable_permissionscommands - The permissions system for integrated servers (single player worlds) will now default to allowing players to see all visualizer types
- This version is network compatible with 2.0.1 and 2.0.2
[2.0.2] TFCGenViewer 2.0.2
by Notenoughmail on Feb 13, 2026
Download
- Fix classloading issue on servers
[2.0.1] TFCGenViewer 2.0.1
by Notenoughmail on Feb 08, 2026
Download
- Add dispatch gradient type
- Only one dispatch type,
tfcgenviewer:hue_wheel, currently exists - The *Temperature* visualizer type now has tooltips in increments of 5°C, instead of 12°C
- The *Rainfall* VT now has tooltips in increments of 50mm, instead of 100mm
- The *Biomes*, *Rocks*, and *Climate Restricted Features* VTs now have dynamic color keys, only showing values encountered during generation
- VT specific options now have a teal border
- Tweaked the *Rocks* VT options
- Changed 'at surface' to 'mode'; functionality is unchanged, but the wording should be more clear/descriptive
- The 'elevation' option is now disabled if 'mode' is set to 'at surface'
- Add tooltips to all current VT options
- The configs now have lang entries
- [API]
- VT specific options can now be dynamically disabled by passing a
BooleanSuppliertoOptionProvider$Order#finish - Add dispatch gradient registry, used by the above-mentioned dispatch gradient type
- Add
RockCache, a cache which - Wraps an inner cache, like
ClimateFeatureCache - Keeps track of the colors in the rock color manager which have been encountered
- Provides a color key describing the encountered colors
- Add
ChunkSizeandChunkScalefor general use - A new [demo video](https://youtu.be/RUc4P2T-jIs) for this update/2.0.0 in general
[2.0.0] TFCGenViewer 2.0.0
by Notenoughmail on Jan 30, 2026
Download
- Update to 1.21.1!
- Complete rework to the underlying functionality; TFCGenViewer now has an API! Expect more on it in the docs at some point
- Several reworks to certain visualizer types
- By default, The *Biomes* VT now shows a lot more biomes to match TFC's expanded biome palette
- The *Inland Height* VT has been merged with *Biome Altitude*, which now shows 7 discrete altitudes from very deep ocean to mountain elevation
- The *Rivers and Mountains* VT now has a flat land color, shows hot spot ages, and has a 'sensitivity' option for river positions
- The *Rocks* VT now has two options
- 'At surface': If the preview should be created for the surface rock layer
- 'Elevation': The y-level the preview should be created for if 'at surface' is turned off
- Add the *Köppen Climate Classification* visualizer type, which colors land according to its [Köppen climate classification](https://en.wikipedia.org/wiki/K%C3%B6ppen_climate_classification)
- The mod is now properly server optional! Players can join servers without TFCGV without any issues, though naturally they will not be able to use the visualizer features
- The permissions system has received an overhaul allowing for more fine-grained control of visualizer permissions
- For the moment, the rock editor sub-screen is unimplemented
- The seed button now also puts the seed into the seed text box when clicked
- Note**: Currently the wiki is pretty barren and only has pages on using the new permission system and the json types used to define colors. More will be added as I have the time
[1.5.1] TFCGenViewer 1.5.1
by Notenoughmail on Oct 04, 2025
Download
- Add *Climate Restricted Features* visualizer
- By default shows Kaolin Clay and Coral spawn locations
- Will display anything in the
tfcgenvewier:visualizable_featuresplaced feature tag - Can handle multiple, overlapping features gracefully
- Uses the climate range set in the
tfc:climatemodifier of the feature - If the configured feature is a TFC ore-type, its biome tag will be respected
- All entries also require a matching color definition in the
/tfcgenviewer/features/folder - Improve *Rivers and Mountains* and *Rocks* visualizer speeds, most noticeable with large visualization scales
[1.5.0] TFCGenViewer 1.5.0
by Notenoughmail on Aug 25, 2025
Download
- Add rock editor sub-screen
- Can be opened via the "Edit Rocks" button below "Export Preview" in the preview screen
- See the [wiki page](https://notenoughmail.github.io/tfcgv/1.20.1/rock-editor) for more information about usage
- Color gradients are now interpolated over the linear sRGB color space
- Changed the default gradients for the *Rainfall* and *Temperature* previewers to be more vibrant and distinct
- As part of this, the
temp,temperature,rain, andrainfallreference gradients are now separate from theclimategradient, which is now unused by default - Adjust *Temperature* visualizer range to be -23 to 33 °C
[1.4.1] TFCGenViewer 1.4.1
by Notenoughmail on Dec 15, 2024
Download
- Add toggleable tooltip when hovering over the preview
Color(Gradient)Definitions now have the ability to define a key for the tooltip (multiple in the case of gradients)- Biomes* and *Rocks*
ColorDefinitions can now be disabled, preventing them from being added to the color key - Fix in-world previews showing the coords the preview is centered on when the server has disabled coordinate viewing
- Adjust *Temperature* visualizer range to be -20 to 30 °C to better reflect the temperature ranges available in default TFC
[1.4.0] TFCGenViewer 1.4.0
by Notenoughmail on Nov 28, 2024
Download
- Speed up preview generation by caching a region's
Points - Properly deal with errors that may occur during generation
- Add error handling config: can be set to immediately stop preview creation and tell the user or to simply skip the
Pointcausing an issue and fill it in with safe, though not accurate, data - Add progress bar along the bottom of the preview, can be disabled in the config
- Colors and gradients can now be randomized at resource load, see the wiki for how to do so via a resource pack
- Add an in-built resource pack that randomizes everything
- Convert most color handlers to (
Registered)DataManagers - Externally this means little more than most color (gradient) definition files are in different places than before, the new locations will be on the wiki
- Add new grayscale reference gradient
[1.3.0] TFCGenViewer 1.3.0
by Notenoughmail on Aug 16, 2024
Download
- The preview screen can now be opened in-world!
- Also works on servers
- Can be opened with the
Kkey by default - Only has options to change the scale since the world settings are already defined
- Which information a player is able to access can be disable/enabled from the server, see below
- Preview generation is now done off-thread, meaning the game should no longer completely lock up on previews that take a long time
- While generating, a loading icon will be displayed instead of the previous preview, this can be disabled in the client config
- When generation finishes, the game will ding, this can also be disabled in the client config
- Add a permissions system to limit what players can access via the in-world preview
- See the [wiki page](https://notenoughmail.github.io/tfcgv/1.20.1/permissions/) for an explanation
[1.2.1] TFCGenViewer 1.2.1
by Notenoughmail on Jul 27, 2024
Download
- Make spawn overlay colors customizable
- Allow preview size to be changed at preview time
- Has 7 options: 4.1, 8.2, 16.4, 32.8, 65.5, 131.1, and 262.1 km
- Change config option
previewSizetodefaultPreviewSize, determines which size the option will default to - Add *Export Preview* button
- Exports the currently displayed preview to a file in
screenshots/tfcgenviewer - Add in-world coordinates tooltip when hovering over the preview
- Can be toggled on and off by clicking the preview
- Tweak the offset options to be in kilometers instead of chunks and to be based off of the center of the preview instead of the top and left edges
[1.2.0] TFCGenViewer 1.2.0
by Notenoughmail on Jul 24, 2024
Download
- Make visualizer colors resource packable
- See [the wiki page](https://notenoughmail.github.io/tfcgv/1.20.1/customization/) for more information
- Adjust *Rocks* visualizer to show y = ~90 instead of ~0
- Add in-built resource pack that makes the *Rocks* visualizer use the colors of [TFCSeedMaker](https://github.com/dries007/TFCSeedMaker/tree/master)
[1.1.0] TFCGenViewer 1.1.0
by Notenoughmail on Jul 16, 2024
Download
- Overhaul the preview screen
- The preview is now centered on the screen
- The settings on the left of the screen are now in a single column and conform to the available space
- The *Save* and *Cancel* buttons are now to either side of the seed button
- The right info area now has more info
- The visualizer used for the preview currently shown
- Where the current preview is centered on
- A color key for the visualizer
- A compass pointing North
- The right info are now becomes scrollable if the info contained is too tall for the screen
- Rename *Rocks* visualizer to *Rock Types*
- Add *Rocks* visualizer that displays the actual rock that will generate at that point
[1.0.0] TFCGenViewer 1.0.0
by Notenoughmail on Jul 12, 2024
Download
Initial release!
