diff options
Diffstat (limited to 'src/quickshapes/shaders/conicalgradient.frag')
-rw-r--r-- | src/quickshapes/shaders/conicalgradient.frag | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/src/quickshapes/shaders/conicalgradient.frag b/src/quickshapes/shaders/conicalgradient.frag deleted file mode 100644 index af5fdd5ee0..0000000000 --- a/src/quickshapes/shaders/conicalgradient.frag +++ /dev/null @@ -1,19 +0,0 @@ -#define INVERSE_2PI 0.1591549430918953358 - -uniform sampler2D gradTabTexture; -uniform lowp float opacity; - -uniform highp float angle; - -varying highp vec2 coord; - -void main() -{ - highp float t; - if (abs(coord.y) == abs(coord.x)) - t = (atan(-coord.y + 0.002, coord.x) + angle) * INVERSE_2PI; - else - t = (atan(-coord.y, coord.x) + angle) * INVERSE_2PI; - gl_FragColor = texture2D(gradTabTexture, vec2(t - floor(t), 0.5)) * opacity; - -} |