diff options
| author | Tim Redfern <tim@getdrop.com> | 2018-02-02 01:47:51 +0000 |
|---|---|---|
| committer | Tim Redfern <tim@getdrop.com> | 2018-02-02 01:47:51 +0000 |
| commit | 7c50a03c5857310aa383b1ba89a18792c96724b1 (patch) | |
| tree | 97727831c97af5c06b39064dfdba60d61f7c7ae3 /warper/bin/data/shaders/ofxWarp/ControlPoint.frag | |
| parent | 2b6c19dd192b07fe5980f667e26015da51c3106d (diff) | |
lots
Diffstat (limited to 'warper/bin/data/shaders/ofxWarp/ControlPoint.frag')
| -rw-r--r-- | warper/bin/data/shaders/ofxWarp/ControlPoint.frag | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/warper/bin/data/shaders/ofxWarp/ControlPoint.frag b/warper/bin/data/shaders/ofxWarp/ControlPoint.frag new file mode 100644 index 0000000..87ef7a3 --- /dev/null +++ b/warper/bin/data/shaders/ofxWarp/ControlPoint.frag @@ -0,0 +1,16 @@ +#version 150 + +in vec2 vTexCoord; +in vec4 vColor; + +out vec4 fragColor; + +void main(void) +{ + vec2 uv = vTexCoord * 2.0 - 1.0; + float d = dot(uv, uv); + float rim = smoothstep(0.7, 0.8, d); + rim += smoothstep(0.3, 0.4, d) - smoothstep(0.5, 0.6, d); + rim += smoothstep(0.1, 0.0, d); + fragColor = mix(vec4( 0.0, 0.0, 0.0, 0.25), vColor, rim); +} |
