StackGenVis: Alignment of Data, Algorithms, and Models for Stacking Ensemble Learning Using Performance Metrics
https://doi.org/10.1109/TVCG.2020.3030352
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48 lines
1.3 KiB
48 lines
1.3 KiB
4 years ago
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#extension GL_OES_standard_derivatives : enable
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precision highp float;
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#pragma glslify: cookTorrance = require(glsl-specular-cook-torrance)
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//#pragma glslify: beckmann = require(glsl-specular-beckmann) // used in gl-surface3d
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#pragma glslify: outOfRange = require(glsl-out-of-range)
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uniform vec3 clipBounds[2];
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uniform float roughness
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, fresnel
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, kambient
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, kdiffuse
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, kspecular;
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uniform sampler2D texture;
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varying vec3 f_normal
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, f_lightDirection
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, f_eyeDirection
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, f_data;
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varying vec4 f_color;
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varying vec2 f_uv;
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void main() {
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if (f_color.a == 0.0 ||
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outOfRange(clipBounds[0], clipBounds[1], f_data)
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) discard;
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vec3 N = normalize(f_normal);
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vec3 L = normalize(f_lightDirection);
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vec3 V = normalize(f_eyeDirection);
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if(gl_FrontFacing) {
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N = -N;
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}
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float specular = min(1.0, max(0.0, cookTorrance(L, V, N, roughness, fresnel)));
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//float specular = max(0.0, beckmann(L, V, N, roughness)); // used in gl-surface3d
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float diffuse = min(kambient + kdiffuse * max(dot(N, L), 0.0), 1.0);
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vec4 surfaceColor = vec4(f_color.rgb, 1.0) * texture2D(texture, f_uv);
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vec4 litColor = surfaceColor.a * vec4(diffuse * surfaceColor.rgb + kspecular * vec3(1,1,1) * specular, 1.0);
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gl_FragColor = litColor * f_color.a;
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}
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