Fragment update!

This site is best viewed in a modern browser with JavaScript enabled.

fsynth

Fragment was updated today, here is the change log :

The editor can now be opened in an external window by clicking on the "</>" icon
Some optimizations were applied
Some fixes were applied to notify the user of disabled JS or API issues
Inputs fixes
Some settings were added and the default was changed, this will help in case of performances issues
Some more pre-defined shader inputs are now documented in the help dialog
The source code can now be found at : https://github.com/grz0zrg/fsynth

Have fun!

fsynth

A quick update was applied today, here is the change log :

Oscillators count (being played) can be shown by enabling the corresponding option in the settings dialog
Some optimizations were done on the synthesis engine
fas was updated with some more aggressive optimizations

More optimizations will come out in the following months as i am planning a hardware based Fragment synthesizer with a Raspberry Pi and HiFiBerry DAC+.

fsynth

An update was published today featuring an improved web audio engine (much faster!) and output spectrum view :

Fragment now use WebAudio optimized oscillators as the default synthesis engine, this mean a big jump in performances, if you have a fast processor, much less crackles is to be expected! This eliminate the need of the native program with my i7 processor and Google Chrome browser
A real-time logarithmic scale spectrum can be shown by clicking on the "analysis" icon, there will be more analysis tools and options in this dialog in the future
Small UI related fixes

The massive audio performance improvement was made possible by the audio synthesis part port of one of my first version of another big project somehow related to Fragment and which is still in development, the first version featured fast real-time additive synthesis by the use of WebAudio oscillators, something which required many prototypes before getting it right, the next iteration of that project switched to a faster non-realtime versions pre-computing audio chunks with a wavetable, this solved alot of problems at the time because of issues with WebAudio oscillators on FireFox and because of the non-realtime nature of that project, Fragment was initially based on the last version of the other project i am working on, so a wavetable was used... now it use the faster method for real-time additive synthesis

I am still working on the spectrum view to add more features and will continue to optimize the web audio engine, consider this as a preview for what is to come! I will add some settings to switch to a wavetable in case there is issues with WebAudio oscillators.

A complete in-app documentation with nice examples is also n progression

fsynth

An update was published today

integrated support for MIDI keyboards (note-on/note-off events) through the "keyboard" uniform, see help dialog for more informations, it is only local (meaning, other peoples will not hear you play) and limited to 8 notes polyphony right now but i will see to improve that.
some small fixes and improvements

fsynth

An update was published today

slices has a "per frame increment" settings which allow them to move left or right automatically (not shared between users)
added the htoy function which is accessible in the fragment shader (see documentation for details)
some informations in the help dialog was fixed
velocity data from the pre-defined keyboard uniform is now normalized
improve performances
the documentation was updated with some more examples

A new video has been posted:

https://www.youtube.com/watch?v=RBKcXOJJEF4

fsynth

The documentation was updated:

fix code blocks messed up copy/paste
improve readability
the PDF documentation is now available

The PDF documentation is provided as-is, even ifcomplete, there is several disadvantages over the HTML documentation, the HTML documentation is the recommended reading format.

fsynth

Fragment was updated with a major feature:

A new feature named "feedback" is enabled by default and make the previous frame available as a texture named "pFrame", this is a major feature as it enable Fragment to do advanced effects such as multitap delay, reverb and advanced sonic textures
the documentation was updated with ADSR code example
some minor fixes and optimizations

fsynth

Fragment was updated yesterday:

New predefined shader function fline taking a frequency as argument and returning 0 or 1, this can be used to draw harmonics easily
Simpler introductory example showing MIDI keyboard usage and how to generate a 440Hz tone with the new fline function
Simpler documentation examples by integrating the fline function
Square and triangle waveform generation example
Small bugfix related to uniforms introduced with the feedback feature

fsynth

Fragment was updated with some great features:

With the new import dialog, it is now possible to import audio files which are then converted to images, the import dialog provide many settings to fine tune the analysis of the audio file, many more improvement on imports will be done in the future, now Fragment is really a "spectral synthesizer" as it can do resynthesis!
Spectral recording dialog, this is a continuous frame by frame recording of what is played by Fragment, different modes can be used (additive, substractive, multiply), you can either export the result as a PNG file to import the image in other softwares or import it back directly as a Fragment input, many new effects can be done with this feature
GLSL outline dialog, this show a list of functions and variables of your fragment shader, by clicking on any entry you can jump quickly to the related code
It is now possible to import many files (audio or images) quickly by drag & drop to the import dialog dropzone
GLSL inputs can be re-ordered on-the-fly by a drag & drop of the thumbnail, this allow to switch textures very quickly
GLSL inputs images can be exported as PNG
The analysis dialog was removed as it didn't provide much value compared to the recording dialog
All dialogs now have a "?" button which is linked to the documentation section for that dialog
FAS was updated with "band-limited noise" feature which enhance the synthesized sound (especially noise), the Linux binary was only updated at the moment, i will release the other binaries (Windows & Raspberry PI) this week
The documentation was updated
Many bugs were fixed

fsynth

Fragment was updated:

inputs are now saved locally per sessions along with associated settings
fixed issue with flip setting
fixed issue with recording dialog

fsynth

Fragment was updated:

Canvas input has been added, this make it possible to directly draw on the canvas with brushes, you can add any number of canvas input and use them as you wish within the shader, they are saved automatically as you draw, Fragment is bundled with 970 high-quality brushes but you can add any images by importing them through the input import, there is many drawing options as well such as randomize, axis locking, brush scaling, brush opacity, brush spacing, brush angle and compositing, the texture bound to the canvas input is updated in real-time as you draw, please see the documentation if you have troubles using this feature
GLSL 3.0 is now supported when WebGL 2 is detected, this is an important feature since GLSL 3.0 allow dynamic indexes, many neat syntax things such as using texture instead of texture2d and more!
almost all dialogs can now be detached from the main window
a "frame" pre-defined uniform was added, this contain the current frame as an integer
fix webcam input
many bugs were squashed

FAS will be updated soon with granular synthesis capability, a launcher and better stability

fsynth

Fragment was updated:

There is now two fragment shader output (fragColor and synthOutput) when WebGL 2.0 is enabled, this make Fragment able to do visuals alongside stereo audio synthesis with clearly separated output, previously, Fragment was only able to do full colors visuals in monophonic mode.
Fragment is now able to read pixels value as 32-bit float, this improve audio quality quite alot, FAS was updated for all platforms.
pKey pre-defined uniform was added, this store for each channels the last "note-off" event with associated data (frequency, velocity and time), this make it easy to do frequency gliding effects (Portamento)
There is now 20 high-quality brushes bundled with Fragment, this was lowered because of the amount of HTTP requests this made and because there was many brushes that were quite similar to each other, you can still download the brushes pack on the homepage anyway
MIDI output devices are now displayed in the MIDI dialog but they cannot be used for now
The documentation was updated to reflect changes
As always many fixes were applied

Next is adding OSC support in FAS for pixels data to bridge it with Csound and others synthesis software, official granular synthesis support is also quite high in my priority list alongside new controllers dialog (which unfortunaly didn't make it in previous update, this require some more brainstorming!)

fsynth

Fragment was updated:

Fix major issue with WebGL 1 browsers and synthOutput shader output which can only be used when WebGL 2 is available but is still tolerated in the fragment shader
Record output and images imported from audio files are now normalized

fsynth

Fragment was updated with an important fix affecting the client&audio server related to the synthesis engine, an issue with rounding and oscillator shift, FAS will be updated in the coming days for all platforms with the fix and OSC output support.