StackGenVis: Alignment of Data, Algorithms, and Models for Stacking Ensemble Learning Using Performance Metrics
https://doi.org/10.1109/TVCG.2020.3030352
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
52 lines
1.4 KiB
52 lines
1.4 KiB
uniform float u_fade_t;
|
|
uniform float u_opacity;
|
|
uniform sampler2D u_image0;
|
|
uniform sampler2D u_image1;
|
|
varying vec2 v_pos0;
|
|
varying vec2 v_pos1;
|
|
|
|
uniform float u_brightness_low;
|
|
uniform float u_brightness_high;
|
|
|
|
uniform float u_saturation_factor;
|
|
uniform float u_contrast_factor;
|
|
uniform vec3 u_spin_weights;
|
|
|
|
void main() {
|
|
|
|
// read and cross-fade colors from the main and parent tiles
|
|
vec4 color0 = texture2D(u_image0, v_pos0);
|
|
vec4 color1 = texture2D(u_image1, v_pos1);
|
|
if (color0.a > 0.0) {
|
|
color0.rgb = color0.rgb / color0.a;
|
|
}
|
|
if (color1.a > 0.0) {
|
|
color1.rgb = color1.rgb / color1.a;
|
|
}
|
|
vec4 color = mix(color0, color1, u_fade_t);
|
|
color.a *= u_opacity;
|
|
vec3 rgb = color.rgb;
|
|
|
|
// spin
|
|
rgb = vec3(
|
|
dot(rgb, u_spin_weights.xyz),
|
|
dot(rgb, u_spin_weights.zxy),
|
|
dot(rgb, u_spin_weights.yzx));
|
|
|
|
// saturation
|
|
float average = (color.r + color.g + color.b) / 3.0;
|
|
rgb += (average - rgb) * u_saturation_factor;
|
|
|
|
// contrast
|
|
rgb = (rgb - 0.5) * u_contrast_factor + 0.5;
|
|
|
|
// brightness
|
|
vec3 u_high_vec = vec3(u_brightness_low, u_brightness_low, u_brightness_low);
|
|
vec3 u_low_vec = vec3(u_brightness_high, u_brightness_high, u_brightness_high);
|
|
|
|
gl_FragColor = vec4(mix(u_high_vec, u_low_vec, rgb) * color.a, color.a);
|
|
|
|
#ifdef OVERDRAW_INSPECTOR
|
|
gl_FragColor = vec4(1.0);
|
|
#endif
|
|
}
|
|
|