Have only two shaders, one for simple gradient and the other for dithered gradient generation. The gradient shape gets passed as a uniform to the shader. Gradients can now get repeated, and the size option for linear gradients is back.
Gradients are no longer limited to two colors, but can now instead have as many as we want, with each color having its own offset. Step gradients have now been removed; to generate the same effect, you can now generate a linear gradient with constant interpolation. Cubic interpolation in gradients is now also possible.
The dithering shaders were by far the biggest challenge and they had to be re-written in order for them to support multiple colors, with each one having a difference offset. I have noticed that some colors may disappear when Constant interpolation is used, though, so it can be buggy sometimes. Thanks to https://godotshaders.com/shader/dither-gradient-shader/ for the reference.
ValueSliders are now also used in the gradient window.
* Moved Reference Images to it's Folder
* Moved the rest to their respective folders
* formatting
* Fix formatting
I removed the `PackedScene` static typing declaration to reduce the number of characters in the line to less than 100. It's not really needed anyway, as Godot should be able to figure out that it's a PackedScene, since it's a tscn file, simply by using `:=`.
* reverting some changes
* Removed some un-expected things
* Fixed TransparentChecker Code
* fix typo
* Revert it
I didn't realize it was intended
* Removed unneded changes
* removed some unexpected changes
Co-authored-by: Emmanouil Papadeas <35376950+OverloadedOrama@users.noreply.github.com>
* Add 6 shader-based gradient types
* Shaders now respect selection
* Fix step gradient
* Remove comments
* Disable step and dithering shaders in Web version
* Fixed a weird bug with dithering shaders, selection and GLES2
Having a selection, applying a dithering gradient, removing the selection and then going to the gradient dialog again causes the dithering shaders to "remember" the previous selection, even if there is no selection currently. This only happens with the two dithering shaders and only with the GLES2 renderer. Removing `uniform sampler2D dither_texture;` from the shader code seems to fix the issue, but that's obviously isn't what we want so a "proper" fix is included in this commit.
* Format & lint
* Removed old gradient code
* Change how centers work on radial step and dithering
* Made angle, center and radius option a bit more clear
* Rename bayer-matrices directory to dither-matrices
* Use DitherMatrix class
* Create dithering types programmatically
* Remove unneeded code in shaders
* Rewrite the step shader without a for loop
More optimized and works on the Web version with GLES2
* Rewrite radial step and dithering shaders without for loop
Now all shaders work on the Web version and have been optimized.
* Fix Linear & Radial size range and remove some unneeded lines
* Added size uniform to Radial Step and Radial Dither
* Swap colors in the Linear gradient
* Make size a percentage
* Make the preview look the same as the result
Didn't change the dithering shaders because they seemed to give different results.
* Remove ratio uniform and divide uvs by the radius instead
This makes more sense because the smaller the number, the smaller the radius.
* Fix linear gradient
* Change Position to percentage and "Size" to "Transition size"
* Mix gradients with original color, if the gradient colors have transparency
