IDEAS.md

Intel HD4400 - bug

Trig functions (sin, cos, tan) lose precision when input is greater than 12865.

Can be prevented by modulating the input time.

Logging slider changes to json seems to add about 2.5 ms / frame

Consider using something like spdlog instead.

Switch to sqlite for better record-structure and performance

Projection mapping

We should render the shader once to an offscreen fbo where the size is a power of 2 to get better performance

Sublimetext inline error display

Might be viable using the phantom API:

https://www.sublimetext.com/docs/3/api_reference.html#sublime.Phantom

Session manager - For replaying the session

• Local git repo tracking code changes (using libgit2)
• Sqlite tracking system changes

Directory of sessions - sessions/

`unixtime_sec`_`day`-`month`-`year`/

    `.git` - Git repo

    `session.json` - Metadata about the session

    `session.glsl` - Shader code edited by user

    `shaders/` - directory of shaders created this session
        `unixtime_sec`.glsl
        `unixtime_sec`.glsl
        [...]
        `unixtime_sec`.glsl

        `thumbnails/` - directory of thumbnails for the shaders
            `unixtime_sec`.png
            `unixtime_sec`.png
            [...]
            `unixtime_sec`.png

    `audio/` - directory of audio clips recorded this session
        `unixtime_sec`.wav
        `unixtime_sec`.wav
        [...]
        `unixtime_sec`.wav

LIVE -- Metadata about the current session - session.json

{
    "mode": "live",
    "group": "Han Gaiden",
    "event": "Serendipfestivalen 2019",
    "location": "Kulturhuset",
    "time": unixtime_sec,
    "media": [
        "https://vimeo.com/318410360"
    ],
    "credits": {
        "Thor Merlin Lervik": [
            "visuals",
        ],
        "Ragnhild Moan": [
            "vocals",
            "synth"
        ],
        "Kristin Myhrvold": [
            "vocals",
            "synth"
        ],
        "Ingrid Skåland Lia": [
            "vocals",
            "synth"
        ]
    },
    "shaders": [
        {
            "id": 1588299344,
            "channels": [
                {
                    "type": "audio",
                    "device": "alsa_output_16pcm"
                },
                {
                    "type": "texture",
                    "filename": "grass.png"
                },
                {
                    "type": "shader",
                    "id": 1588299344
                }
            ]
        },
        {
            "id": 6662323623,
            "channels": [
                {
                    "type": shader",
                    "id": 6662323623
                },
                {
                    "type": shader",
                    "id": 1588299344
                }
            ]
        }
    ],
    "windows": [
        {
            "type": "master",
            "x": 1920,
            "y": 0,
            "width": 1280,
            "height": 720,
            "model": "dinzoil_F"
        },
        {
            "type": "slave",
            "x": 3200,
            "y": 0,
            "width": 1280,
            "height": 720,
            "model": "dinzoil_B"
        },
        {
            "type": "preview",
            "x": 0,
            "y": 400,
            "width": 256,
            "height": 256
        }
    ]
}

STUDIO -- Metadata about the current session - session.json

{
    "mode": "studio",
    "name": "BlackPurpl€$BlackPurpl£ 2"
    "group": "rohtie",
    "event": "Revision 2019",
    "time": unixtime_sec,
    "credits": {
        "rohtie": [
            "code",
            "graphics"
        ],

        "Dawg Phaze": [
            "music"
        ]
    },
    "shaders": [
        {
            "id": 1588299344,
            "channels": [
                {
                    "type": "audio",
                    "device": "alsa_output_16pcm"
                },
                {
                    "type": "texture",
                    "filename": "grass.png"
                },
                {
                    "type": "shader",
                    "id": 1588299344
                }
            ]
        },
        {
            "id": 6662323623,
            "channels": [
                {
                    "type": shader",
                    "id": 6662323623
                },
                {
                    "type": shader",
                    "id": 1588299344
                }
            ]
        }
    ],
    "scenes": [
        {
            "name": "Intro",
            "length": 24000,
            "shader": 6662323623
        },
        {
            "name": "Cream scene",
            "length": 13000,
            "shader": 1588299344
        },
        {
            "name": "Outro",
            "length": 16500,
            "shader": 6662323623
        }
    ],
    "windows": [
        {
            "type": "master",
            "x": 0,
            "y": 400,
            "width": 256,
            "height": 256
        },
        {
            "type": "preview",
            "x": 0,
            "y": 400,
            "width": 256,
            "height": 256
        }
    ]
}