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Tech ENABLE_OUT_OF_BED_DETECTION_IMPROVEMENTS - Out of bed detection for circular printbeds

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enricoturri1966 2021-09-21 13:51:57 +02:00
parent 35579252b8
commit cf380fb456
16 changed files with 692 additions and 79 deletions
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130
resources/shaders/gouraud_mod.fs Normal file
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#version 110
#define INTENSITY_CORRECTION 0.6
// normalized values for (-0.6/1.31, 0.6/1.31, 1./1.31)
const vec3 LIGHT_TOP_DIR = vec3(-0.4574957, 0.4574957, 0.7624929);
#define LIGHT_TOP_DIFFUSE (0.8 * INTENSITY_CORRECTION)
#define LIGHT_TOP_SPECULAR (0.125 * INTENSITY_CORRECTION)
#define LIGHT_TOP_SHININESS 20.0
// normalized values for (1./1.43, 0.2/1.43, 1./1.43)
const vec3 LIGHT_FRONT_DIR = vec3(0.6985074, 0.1397015, 0.6985074);
#define LIGHT_FRONT_DIFFUSE (0.3 * INTENSITY_CORRECTION)
#define INTENSITY_AMBIENT 0.3
const vec3 ZERO = vec3(0.0, 0.0, 0.0);
const vec3 GREEN = vec3(0.0, 0.7, 0.0);
const vec3 YELLOW = vec3(0.5, 0.7, 0.0);
const vec3 RED = vec3(0.7, 0.0, 0.0);
const vec3 WHITE = vec3(1.0, 1.0, 1.0);
const float EPSILON = 0.0001;
const float BANDS_WIDTH = 10.0;
struct PrintVolumeDetection
{
// 0 = rectangle, 1 = circle, 2 = custom, 3 = invalid
int type;
// type = 0 (rectangle):
// x = min.x, y = min.y, z = max.x, w = max.y
// type = 1 (circle):
// x = center.x, y = center.y, z = radius
vec4 xy_data;
// x = min z, y = max z
vec2 z_data;
};
struct SlopeDetection
{
bool actived;
float normal_z;
mat3 volume_world_normal_matrix;
};
uniform vec4 uniform_color;
uniform SlopeDetection slope;
#ifdef ENABLE_ENVIRONMENT_MAP
uniform sampler2D environment_tex;
uniform bool use_environment_tex;
#endif // ENABLE_ENVIRONMENT_MAP
varying vec3 clipping_planes_dots;
// x = diffuse, y = specular;
varying vec2 intensity;
uniform PrintVolumeDetection print_volume;
varying vec4 model_pos;
varying vec4 world_pos;
varying float world_normal_z;
varying vec3 eye_normal;
uniform bool compute_triangle_normals_in_fs;
void main()
{
if (any(lessThan(clipping_planes_dots, ZERO)))
discard;
vec3 color = uniform_color.rgb;
float alpha = uniform_color.a;
vec2 intensity_fs = intensity;
vec3 eye_normal_fs = eye_normal;
float world_normal_z_fs = world_normal_z;
if (compute_triangle_normals_in_fs) {
vec3 triangle_normal = normalize(cross(dFdx(model_pos.xyz), dFdy(model_pos.xyz)));
#ifdef FLIP_TRIANGLE_NORMALS
triangle_normal = -triangle_normal;
#endif
// First transform the normal into camera space and normalize the result.
eye_normal_fs = normalize(gl_NormalMatrix * triangle_normal);
// Compute the cos of the angle between the normal and lights direction. The light is directional so the direction is constant for every vertex.
// Since these two are normalized the cosine is the dot product. We also need to clamp the result to the [0,1] range.
float NdotL = max(dot(eye_normal_fs, LIGHT_TOP_DIR), 0.0);
intensity_fs = vec2(0.0, 0.0);
intensity_fs.x = INTENSITY_AMBIENT + NdotL * LIGHT_TOP_DIFFUSE;
vec3 position = (gl_ModelViewMatrix * model_pos).xyz;
intensity_fs.y = LIGHT_TOP_SPECULAR * pow(max(dot(-normalize(position), reflect(-LIGHT_TOP_DIR, eye_normal_fs)), 0.0), LIGHT_TOP_SHININESS);
// Perform the same lighting calculation for the 2nd light source (no specular applied).
NdotL = max(dot(eye_normal_fs, LIGHT_FRONT_DIR), 0.0);
intensity_fs.x += NdotL * LIGHT_FRONT_DIFFUSE;
// z component of normal vector in world coordinate used for slope shading
world_normal_z_fs = slope.actived ? (normalize(slope.volume_world_normal_matrix * triangle_normal)).z : 0.0;
}
if (slope.actived && world_normal_z_fs < slope.normal_z - EPSILON) {
color = vec3(0.7, 0.7, 1.0);
alpha = 1.0;
}
// if the fragment is outside the print volume -> use darker color
vec3 pv_check_min = ZERO;
vec3 pv_check_max = ZERO;
if (print_volume.type == 0) {
// rectangle
pv_check_min = world_pos.xyz - vec3(print_volume.xy_data.x, print_volume.xy_data.y, print_volume.z_data.x);
pv_check_max = world_pos.xyz - vec3(print_volume.xy_data.z, print_volume.xy_data.w, print_volume.z_data.y);
}
else if (print_volume.type == 1) {
// circle
float delta_radius = print_volume.xy_data.z - distance(world_pos.xy, print_volume.xy_data.xy);
pv_check_min = vec3(delta_radius, 0.0, world_pos.z - print_volume.z_data.x);
pv_check_max = vec3(0.0, 0.0, world_pos.z - print_volume.z_data.y);
}
color = (any(lessThan(pv_check_min, ZERO)) || any(greaterThan(pv_check_max, ZERO))) ? mix(color, ZERO, 0.3333) : color;
#ifdef ENABLE_ENVIRONMENT_MAP
if (use_environment_tex)
gl_FragColor = vec4(0.45 * texture2D(environment_tex, normalize(eye_normal_fs).xy * 0.5 + 0.5).xyz + 0.8 * color * intensity_fs.x, alpha);
else
#endif
gl_FragColor = vec4(vec3(intensity_fs.y) + color * intensity_fs.x, alpha);
}

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resources/shaders/gouraud_mod.vs Normal file
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#version 110
#define INTENSITY_CORRECTION 0.6
// normalized values for (-0.6/1.31, 0.6/1.31, 1./1.31)
const vec3 LIGHT_TOP_DIR = vec3(-0.4574957, 0.4574957, 0.7624929);
#define LIGHT_TOP_DIFFUSE (0.8 * INTENSITY_CORRECTION)
#define LIGHT_TOP_SPECULAR (0.125 * INTENSITY_CORRECTION)
#define LIGHT_TOP_SHININESS 20.0
// normalized values for (1./1.43, 0.2/1.43, 1./1.43)
const vec3 LIGHT_FRONT_DIR = vec3(0.6985074, 0.1397015, 0.6985074);
#define LIGHT_FRONT_DIFFUSE (0.3 * INTENSITY_CORRECTION)
//#define LIGHT_FRONT_SPECULAR (0.0 * INTENSITY_CORRECTION)
//#define LIGHT_FRONT_SHININESS 5.0
#define INTENSITY_AMBIENT 0.3
const vec3 ZERO = vec3(0.0, 0.0, 0.0);
struct SlopeDetection
{
bool actived;
float normal_z;
mat3 volume_world_normal_matrix;
};
uniform mat4 volume_world_matrix;
uniform SlopeDetection slope;
// Clipping plane, x = min z, y = max z. Used by the FFF and SLA previews to clip with a top / bottom plane.
uniform vec2 z_range;
// Clipping plane - general orientation. Used by the SLA gizmo.
uniform vec4 clipping_plane;
// x = diffuse, y = specular;
varying vec2 intensity;
varying vec3 clipping_planes_dots;
varying vec4 model_pos;
varying vec4 world_pos;
varying float world_normal_z;
varying vec3 eye_normal;
uniform bool compute_triangle_normals_in_fs;
void main()
{
if (!compute_triangle_normals_in_fs) {
// First transform the normal into camera space and normalize the result.
eye_normal = normalize(gl_NormalMatrix * gl_Normal);
// Compute the cos of the angle between the normal and lights direction. The light is directional so the direction is constant for every vertex.
// Since these two are normalized the cosine is the dot product. We also need to clamp the result to the [0,1] range.
float NdotL = max(dot(eye_normal, LIGHT_TOP_DIR), 0.0);
intensity.x = INTENSITY_AMBIENT + NdotL * LIGHT_TOP_DIFFUSE;
vec3 position = (gl_ModelViewMatrix * gl_Vertex).xyz;
intensity.y = LIGHT_TOP_SPECULAR * pow(max(dot(-normalize(position), reflect(-LIGHT_TOP_DIR, eye_normal)), 0.0), LIGHT_TOP_SHININESS);
// Perform the same lighting calculation for the 2nd light source (no specular applied).
NdotL = max(dot(eye_normal, LIGHT_FRONT_DIR), 0.0);
intensity.x += NdotL * LIGHT_FRONT_DIFFUSE;
}
model_pos = gl_Vertex;
// Point in homogenous coordinates.
world_pos = volume_world_matrix * gl_Vertex;
// z component of normal vector in world coordinate used for slope shading
if (!compute_triangle_normals_in_fs)
world_normal_z = slope.actived ? (normalize(slope.volume_world_normal_matrix * gl_Normal)).z : 0.0;
gl_Position = ftransform();
// Fill in the scalars for fragment shader clipping. Fragments with any of these components lower than zero are discarded.
clipping_planes_dots = vec3(dot(world_pos, clipping_plane), world_pos.z - z_range.x, z_range.y - world_pos.z);
}