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Show wireframe in MMU painter gizmo (#2808)

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* Remove unused shader files

* Port wireframe shader from BBS

* Enable wireframe in MMU painter

Co-Authored-By: zhou.xu <zhou.xu@bambulab.com>

---------

Co-authored-by: zhou.xu <zhou.xu@bambulab.com>
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Noisyfox 2023-11-21 17:17:22 +08:00 • committed by GitHub
parent 70d86af253
commit 03a9014d3a
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39 changed files with 121 additions and 1092 deletions
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33
resources/shaders/140/mm_gouraud.fs
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@ -40,6 +40,30 @@ struct SlopeDetection
};
uniform SlopeDetection slope;
out vec4 out_color;
//BBS: add wireframe logic
in vec3 barycentric_coordinates;
float edgeFactor(float lineWidth) {
vec3 d = fwidth(barycentric_coordinates);
vec3 a3 = smoothstep(vec3(0.0), d * lineWidth, barycentric_coordinates);
return min(min(a3.x, a3.y), a3.z);
}
vec3 wireframe(vec3 fill, vec3 stroke, float lineWidth) {
return mix(stroke, fill, edgeFactor(lineWidth));
//if (any(lessThan(barycentric_coordinates, vec3(0.005, 0.005, 0.005))))
// return vec3(1.0, 0.0, 0.0);
//else
// return fill;
}
vec3 getWireframeColor(vec3 fill) {
float brightness = 0.2126 * fill.r + 0.7152 * fill.g + 0.0722 * fill.b;
return (brightness > 0.75) ? vec3(0.11, 0.165, 0.208) : vec3(0.988, 0.988, 0.988);
}
uniform bool show_wireframe;
void main()
{
if (any(lessThan(clipping_planes_dots, ZERO)))
@ -86,5 +110,12 @@ void main()
NdotL = max(dot(eye_normal, LIGHT_FRONT_DIR), 0.0);
intensity.x += NdotL * LIGHT_FRONT_DIFFUSE;
gl_FragColor = vec4(vec3(intensity.y) + color * intensity.x, alpha);
if (show_wireframe) {
vec3 wireframeColor = show_wireframe ? getWireframeColor(color) : color;
vec3 triangleColor = wireframe(color, wireframeColor, 1.0);
out_color = vec4(vec3(intensity.y) + triangleColor * intensity.x, alpha);
}
else {
out_color = vec4(vec3(intensity.y) + color * intensity.x, alpha);
}
}