Desktop Fail

Mac’s “⌘–Space” Spotlight

iTunes Icons

Photoshop Icons

Brand Colours

West Coast vs. East Coast

Schroen’s Visual Recognition Order

Demo

Haptic Feedback

Caveats

ufo.ai/space

The future

Organizing space

Tech Portion

Android Shaders

precision highp float;
uniform vec3 iResolution;
uniform float iGlobalTime;
uniform vec4 iMouse;
uniform float iRadius;
uniform float iBeam;
uniform float iBeamWidth;

void main() {
    vec2 p = (gl_FragCoord.xy - iMouse.xy) / iResolution.y;
    float a = atan(p.x, p.y);
    float r = length(p) - iRadius;
    vec2 uv = vec2(a, r);

    vec3 horColour = vec3(gl_FragCoord.xy / iResolution.xy, 0.5);
    vec3 horBeam = vec3(abs(iBeam / (iBeamWidth * uv.y)));
    gl_FragColor = vec4(horBeam * horColour, 1.0);
}
                    

Shadertoy fragment shader

private void initShaderVariables() {
    vPosition = GLES20.glGetAttribLocation(program, "vPosition");
    iResolution = GLES20.glGetUniformLocation(program, "iResolution");
    iGlobalTime = GLES20.glGetUniformLocation(program, "iGlobalTime");
    iMouse = GLES20.glGetUniformLocation(program, "iMouse");
    iRadius = GLES20.glGetUniformLocation(program, "iRadius");
    iBeam = GLES20.glGetUniformLocation(program, "iBeam");
    iBeamWidth = GLES20.glGetUniformLocation(program, "iBeamWidth");
}
                    

Android OpenGL ES 2.0 Shadertoy variables

private void setShaderVariables() {
    GLES20.glUniform3f(iResolution, screenWidth, screenHeight,
            (float)screenWidth / (float)screenHeight);

    Date date = new Date();
    float time = (float) (date.getTime() - startTime) / 1000.0f;
    GLES20.glUniform1f(iGlobalTime, time);
    GLES20.glUniform4f(iMouse, touchX, touchY,
            touchActive ? touchX : 0, touchActive ? touchY : 0);
    GLES20.glUniform1f(iRadius, radiusPos);
    GLES20.glUniform1f(iBeam, beamPos);
    GLES20.glUniform1f(iBeamWidth, beamWidthPos);
}
                    

Android OpenGL ES 2.0 set Shadertoy variables

Android Gestures

Create a gesture?

ArrayList<Prediction> predictions = mGestureLibrary.recognize(gesture);
if (!predictions.isEmpty()) {
    Prediction bestPrediction = predictions.get(0);
    if (bestPrediction.score >= MIN_PREDICTION_SCORE) {
        try {
            final int gestureId = Integer.parseInt(bestPrediction.name);
            Log.d(TAG, "gesture: " + gestureId);
            if (gestureId > 4 && gestureId < 11 && hold < 2) posReveal(!reveal);
        } catch (NumberFormatException nfe) {
            Log.d(TAG, "Non numeric gesture id:" + bestPrediction.name);
        }
    }
}
                    

gestureId > 4 && gestureId < 11

Questions?

Bensimon Byrne

Patrick Schroen

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github.com/pschroen