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Merge pull request #49313 from madmiraal/fix-48408

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Fix multiple issues with CSGPolygon
This commit is contained in:
Rémi Verschelde 2021-08-12 11:40:25 +02:00 committed by GitHub
parent 810c30dc09 cf771342cb
commit 2eb3c9580f
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 288 additions and 462 deletions
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701
modules/csg/csg_shape.cpp
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@ -29,8 +29,8 @@
/*************************************************************************/
#include "csg_shape.h"
#include "core/math/geometry_2d.h"
#include "scene/3d/path_3d.h"
void CSGShape3D::set_use_collision(bool p_enable) {
if (use_collision == p_enable) {
@ -1676,109 +1676,80 @@ CSGTorus3D::CSGTorus3D() {
///////////////
CSGBrush *CSGPolygon3D::_build_brush() {
// set our bounding box
if (polygon.size() < 3) {
return memnew(CSGBrush);
}
Vector<Point2> final_polygon = polygon;
if (Triangulate::get_area(final_polygon) > 0) {
final_polygon.reverse();
}
Vector<int> triangles = Geometry2D::triangulate_polygon(final_polygon);
if (triangles.size() < 3) {
return memnew(CSGBrush);
}
Path3D *path = nullptr;
Ref<Curve3D> curve;
// get bounds for our polygon
Vector2 final_polygon_min;
Vector2 final_polygon_max;
for (int i = 0; i < final_polygon.size(); i++) {
Vector2 p = final_polygon[i];
if (i == 0) {
final_polygon_min = p;
final_polygon_max = final_polygon_min;
} else {
if (p.x < final_polygon_min.x) {
final_polygon_min.x = p.x;
}
if (p.y < final_polygon_min.y) {
final_polygon_min.y = p.y;
}
if (p.x > final_polygon_max.x) {
final_polygon_max.x = p.x;
}
if (p.y > final_polygon_max.y) {
final_polygon_max.y = p.y;
}
}
}
Vector2 final_polygon_size = final_polygon_max - final_polygon_min;
if (mode == MODE_PATH) {
if (!has_node(path_node)) {
return memnew(CSGBrush);
}
Node *n = get_node(path_node);
if (!n) {
return memnew(CSGBrush);
}
path = Object::cast_to<Path3D>(n);
if (!path) {
return memnew(CSGBrush);
}
if (path != path_cache) {
if (path_cache) {
path_cache->disconnect("tree_exited", callable_mp(this, &CSGPolygon3D::_path_exited));
path_cache->disconnect("curve_changed", callable_mp(this, &CSGPolygon3D::_path_changed));
path_cache = nullptr;
}
path_cache = path;
path_cache->connect("tree_exited", callable_mp(this, &CSGPolygon3D::_path_exited));
path_cache->connect("curve_changed", callable_mp(this, &CSGPolygon3D::_path_changed));
}
curve = path->get_curve();
if (curve.is_null()) {
return memnew(CSGBrush);
}
if (curve->get_baked_length() <= 0) {
return memnew(CSGBrush);
}
}
CSGBrush *brush = memnew(CSGBrush);
int face_count = 0;
if (polygon.size() < 3) {
return brush;
}
// Triangulate polygon shape.
Vector<Point2> shape_polygon = polygon;
if (Triangulate::get_area(shape_polygon) > 0) {
shape_polygon.reverse();
}
int shape_sides = shape_polygon.size();
Vector<int> shape_faces = Geometry2D::triangulate_polygon(shape_polygon);
ERR_FAIL_COND_V_MSG(shape_faces.size() < 3, brush, "Failed to triangulate CSGPolygon");
// Get polygon enclosing Rect2.
Rect2 shape_rect(shape_polygon[0], Vector2());
for (int i = 1; i < shape_sides; i++) {
shape_rect.expand_to(shape_polygon[i]);
}
// If MODE_PATH, check if curve has changed.
Ref<Curve3D> curve;
if (mode == MODE_PATH) {
Path3D *current_path = Object::cast_to<Path3D>(get_node_or_null(path_node));
if (path != current_path) {
if (path) {
path->disconnect("tree_exited", callable_mp(this, &CSGPolygon3D::_path_exited));
path->disconnect("curve_changed", callable_mp(this, &CSGPolygon3D::_path_changed));
}
path = current_path;
if (path) {
path->connect("tree_exited", callable_mp(this, &CSGPolygon3D::_path_exited));
path->connect("curve_changed", callable_mp(this, &CSGPolygon3D::_path_changed));
}
}
if (!path) {
return brush;
}
curve = path->get_curve();
if (curve.is_null() || curve->get_point_count() < 2) {
return brush;
}
}
// Calculate the number extrusions, ends and faces.
int extrusions = 0;
int extrusion_face_count = shape_sides * 2;
int end_count = 0;
int shape_face_count = shape_faces.size() / 3;
switch (mode) {
case MODE_DEPTH:
face_count = triangles.size() * 2 / 3 + (final_polygon.size()) * 2;
extrusions = 1;
end_count = 2;
break;
case MODE_SPIN:
face_count = (spin_degrees < 360 ? triangles.size() * 2 / 3 : 0) + (final_polygon.size()) * 2 * spin_sides;
extrusions = spin_sides;
if (spin_degrees < 360) {
end_count = 2;
}
break;
case MODE_PATH: {
float bl = curve->get_baked_length();
int splits = MAX(2, Math::ceil(bl / path_interval));
if (path_joined) {
face_count = splits * final_polygon.size() * 2;
} else {
face_count = triangles.size() * 2 / 3 + splits * final_polygon.size() * 2;
extrusions = Math::ceil(1.0 * curve->get_point_count() / path_interval);
if (!path_joined) {
end_count = 2;
extrusions -= 1;
}
} break;
}
int face_count = extrusions * extrusion_face_count + end_count * shape_face_count;
bool invert_val = is_inverting_faces();
// Intialize variables used to create the mesh.
Ref<Material> material = get_material();
Vector<Vector3> faces;
@ -1789,362 +1760,216 @@ CSGBrush *CSGPolygon3D::_build_brush() {
faces.resize(face_count * 3);
uvs.resize(face_count * 3);
smooth.resize(face_count);
materials.resize(face_count);
invert.resize(face_count);
AABB aabb; //must be computed
{
Vector3 *facesw = faces.ptrw();
Vector2 *uvsw = uvs.ptrw();
bool *smoothw = smooth.ptrw();
Ref<Material> *materialsw = materials.ptrw();
bool *invertw = invert.ptrw();
Vector3 *facesw = faces.ptrw();
Vector2 *uvsw = uvs.ptrw();
bool *smoothw = smooth.ptrw();
Ref<Material> *materialsw = materials.ptrw();
bool *invertw = invert.ptrw();
int face = 0;
int face = 0;
Transform3D base_xform;
Transform3D current_xform;
Transform3D previous_xform;
double u_step = 1.0 / extrusions;
double v_step = 1.0 / shape_sides;
double spin_step = Math::deg2rad(spin_degrees / spin_sides);
double extrusion_step = 1.0 / extrusions;
if (mode == MODE_PATH) {
if (path_joined) {
extrusion_step = 1.0 / (extrusions - 1);
}
extrusion_step *= curve->get_baked_length();
}
if (mode == MODE_PATH) {
if (!path_local) {
base_xform = path->get_global_transform();
}
Vector3 current_point = curve->interpolate_baked(0);
Vector3 next_point = curve->interpolate_baked(extrusion_step);
Vector3 current_up = Vector3(0, 1, 0);
Vector3 direction = next_point - current_point;
if (path_joined) {
Vector3 last_point = curve->interpolate_baked(curve->get_baked_length());
direction = next_point - last_point;
}
switch (path_rotation) {
case PATH_ROTATION_POLYGON:
direction = Vector3(0, 0, -1);
break;
case PATH_ROTATION_PATH:
break;
case PATH_ROTATION_PATH_FOLLOW:
current_up = curve->interpolate_baked_up_vector(0);
break;
}
Transform3D facing = Transform3D().looking_at(direction, current_up);
current_xform = base_xform.translated(current_point) * facing;
}
// Create the mesh.
if (end_count > 0) {
// Add front end face.
for (int face_idx = 0; face_idx < shape_face_count; face_idx++) {
for (int face_vertex_idx = 0; face_vertex_idx < 3; face_vertex_idx++) {
// We need to reverse the rotation of the shape face vertices.
int index = shape_faces[face_idx * 3 + 2 - face_vertex_idx];
Point2 p = shape_polygon[index];
Point2 uv = (p - shape_rect.position) / shape_rect.size;
// Use the left side of the bottom half of the y-inverted texture.
uv.x = uv.x / 2;
uv.y = 1 - (uv.y / 2);
facesw[face * 3 + face_vertex_idx] = current_xform.xform(Vector3(p.x, p.y, 0));
uvsw[face * 3 + face_vertex_idx] = uv;
}
smoothw[face] = false;
materialsw[face] = material;
invertw[face] = invert_faces;
face++;
}
}
// Add extrusion faces.
for (int x0 = 0; x0 < extrusions; x0++) {
previous_xform = current_xform;
switch (mode) {
case MODE_DEPTH: {
//add triangles, front and back
for (int i = 0; i < 2; i++) {
for (int j = 0; j < triangles.size(); j += 3) {
for (int k = 0; k < 3; k++) {
int src[3] = { 0, i == 0 ? 1 : 2, i == 0 ? 2 : 1 };
Vector2 p = final_polygon[triangles[j + src[k]]];
Vector3 v = Vector3(p.x, p.y, 0);
if (i == 0) {
v.z -= depth;
}
facesw[face * 3 + k] = v;
uvsw[face * 3 + k] = (p - final_polygon_min) / final_polygon_size;
if (i == 0) {
uvsw[face * 3 + k].x = 1.0 - uvsw[face * 3 + k].x; /* flip x */
}
}
smoothw[face] = false;
materialsw[face] = material;
invertw[face] = invert_val;
face++;
}
}
//add triangles for depth
for (int i = 0; i < final_polygon.size(); i++) {
int i_n = (i + 1) % final_polygon.size();
Vector3 v[4] = {
Vector3(final_polygon[i].x, final_polygon[i].y, -depth),
Vector3(final_polygon[i_n].x, final_polygon[i_n].y, -depth),
Vector3(final_polygon[i_n].x, final_polygon[i_n].y, 0),
Vector3(final_polygon[i].x, final_polygon[i].y, 0),
};
Vector2 u[4] = {
Vector2(0, 0),
Vector2(0, 1),
Vector2(1, 1),
Vector2(1, 0)
};
// face 1
facesw[face * 3 + 0] = v[0];
facesw[face * 3 + 1] = v[1];
facesw[face * 3 + 2] = v[2];
uvsw[face * 3 + 0] = u[0];
uvsw[face * 3 + 1] = u[1];
uvsw[face * 3 + 2] = u[2];
smoothw[face] = smooth_faces;
invertw[face] = invert_val;
materialsw[face] = material;
face++;
// face 2
facesw[face * 3 + 0] = v[2];
facesw[face * 3 + 1] = v[3];
facesw[face * 3 + 2] = v[0];
uvsw[face * 3 + 0] = u[2];
uvsw[face * 3 + 1] = u[3];
uvsw[face * 3 + 2] = u[0];
smoothw[face] = smooth_faces;
invertw[face] = invert_val;
materialsw[face] = material;
face++;
}
current_xform.translate(Vector3(0, 0, -depth));
} break;
case MODE_SPIN: {
for (int i = 0; i < spin_sides; i++) {
float inci = float(i) / spin_sides;
float inci_n = float((i + 1)) / spin_sides;
float angi = -Math::deg2rad(inci * spin_degrees);
float angi_n = -Math::deg2rad(inci_n * spin_degrees);
Vector3 normali = Vector3(Math::cos(angi), 0, Math::sin(angi));
Vector3 normali_n = Vector3(Math::cos(angi_n), 0, Math::sin(angi_n));
//add triangles for depth
for (int j = 0; j < final_polygon.size(); j++) {
int j_n = (j + 1) % final_polygon.size();
Vector3 v[4] = {
Vector3(normali.x * final_polygon[j].x, final_polygon[j].y, normali.z * final_polygon[j].x),
Vector3(normali.x * final_polygon[j_n].x, final_polygon[j_n].y, normali.z * final_polygon[j_n].x),
Vector3(normali_n.x * final_polygon[j_n].x, final_polygon[j_n].y, normali_n.z * final_polygon[j_n].x),
Vector3(normali_n.x * final_polygon[j].x, final_polygon[j].y, normali_n.z * final_polygon[j].x),
};
Vector2 u[4] = {
Vector2(0, 0),
Vector2(0, 1),
Vector2(1, 1),
Vector2(1, 0)
};
// face 1
facesw[face * 3 + 0] = v[0];
facesw[face * 3 + 1] = v[2];
facesw[face * 3 + 2] = v[1];
uvsw[face * 3 + 0] = u[0];
uvsw[face * 3 + 1] = u[2];
uvsw[face * 3 + 2] = u[1];
smoothw[face] = smooth_faces;
invertw[face] = invert_val;
materialsw[face] = material;
face++;
// face 2
facesw[face * 3 + 0] = v[2];
facesw[face * 3 + 1] = v[0];
facesw[face * 3 + 2] = v[3];
uvsw[face * 3 + 0] = u[2];
uvsw[face * 3 + 1] = u[0];
uvsw[face * 3 + 2] = u[3];
smoothw[face] = smooth_faces;
invertw[face] = invert_val;
materialsw[face] = material;
face++;
}
if (i == 0 && spin_degrees < 360) {
for (int j = 0; j < triangles.size(); j += 3) {
for (int k = 0; k < 3; k++) {
int src[3] = { 0, 2, 1 };
Vector2 p = final_polygon[triangles[j + src[k]]];
Vector3 v = Vector3(p.x, p.y, 0);
facesw[face * 3 + k] = v;
uvsw[face * 3 + k] = (p - final_polygon_min) / final_polygon_size;
}
smoothw[face] = false;
materialsw[face] = material;
invertw[face] = invert_val;
face++;
}
}
if (i == spin_sides - 1 && spin_degrees < 360) {
for (int j = 0; j < triangles.size(); j += 3) {
for (int k = 0; k < 3; k++) {
int src[3] = { 0, 1, 2 };
Vector2 p = final_polygon[triangles[j + src[k]]];
Vector3 v = Vector3(normali_n.x * p.x, p.y, normali_n.z * p.x);
facesw[face * 3 + k] = v;
uvsw[face * 3 + k] = (p - final_polygon_min) / final_polygon_size;
uvsw[face * 3 + k].x = 1.0 - uvsw[face * 3 + k].x; /* flip x */
}
smoothw[face] = false;
materialsw[face] = material;
invertw[face] = invert_val;
face++;
}
}
}
current_xform.rotate(Vector3(0, 1, 0), spin_step);
} break;
case MODE_PATH: {
float bl = curve->get_baked_length();
int splits = MAX(2, Math::ceil(bl / path_interval));
float u1 = 0.0;
float u2 = path_continuous_u ? 0.0 : 1.0;
Transform3D path_to_this;
if (!path_local) {
// center on paths origin
path_to_this = get_global_transform().affine_inverse() * path->get_global_transform();
}
Transform3D prev_xf;
Vector3 lookat_dir;
if (path_rotation == PATH_ROTATION_POLYGON) {
lookat_dir = (path->get_global_transform().affine_inverse() * get_global_transform()).xform(Vector3(0, 0, -1));
} else {
Vector3 p1, p2;
p1 = curve->interpolate_baked(0);
p2 = curve->interpolate_baked(0.1);
lookat_dir = (p2 - p1).normalized();
}
for (int i = 0; i <= splits; i++) {
float ofs = i * path_interval;
if (ofs > bl) {
ofs = bl;
}
if (i == splits && path_joined) {
ofs = 0.0;
}
Transform3D xf;
xf.origin = curve->interpolate_baked(ofs);
Vector3 local_dir;
if (path_rotation == PATH_ROTATION_PATH_FOLLOW && ofs > 0) {
//before end
Vector3 p1 = curve->interpolate_baked(ofs - 0.1);
Vector3 p2 = curve->interpolate_baked(ofs);
local_dir = (p2 - p1).normalized();
double previous_offset = x0 * extrusion_step;
double current_offset = (x0 + 1) * extrusion_step;
double next_offset = (x0 + 2) * extrusion_step;
if (x0 == extrusions - 1) {
if (path_joined) {
current_offset = 0;
next_offset = extrusion_step;
} else {
local_dir = lookat_dir;
next_offset = current_offset;
}
xf = xf.looking_at(xf.origin + local_dir, Vector3(0, 1, 0));
Basis rot(Vector3(0, 0, 1), curve->interpolate_baked_tilt(ofs));
xf = xf * rot; //post mult
xf = path_to_this * xf;
if (i > 0) {
if (path_continuous_u) {
u1 = u2;
u2 += (prev_xf.origin - xf.origin).length();
};
//put triangles where they belong
//add triangles for depth
for (int j = 0; j < final_polygon.size(); j++) {
int j_n = (j + 1) % final_polygon.size();
Vector3 v[4] = {
prev_xf.xform(Vector3(final_polygon[j].x, final_polygon[j].y, 0)),
prev_xf.xform(Vector3(final_polygon[j_n].x, final_polygon[j_n].y, 0)),
xf.xform(Vector3(final_polygon[j_n].x, final_polygon[j_n].y, 0)),
xf.xform(Vector3(final_polygon[j].x, final_polygon[j].y, 0)),
};
Vector2 u[4] = {
Vector2(u1, 1),
Vector2(u1, 0),
Vector2(u2, 0),
Vector2(u2, 1)
};
// face 1
facesw[face * 3 + 0] = v[0];
facesw[face * 3 + 1] = v[1];
facesw[face * 3 + 2] = v[2];
uvsw[face * 3 + 0] = u[0];
uvsw[face * 3 + 1] = u[1];
uvsw[face * 3 + 2] = u[2];
smoothw[face] = smooth_faces;
invertw[face] = invert_val;
materialsw[face] = material;
face++;
// face 2
facesw[face * 3 + 0] = v[2];
facesw[face * 3 + 1] = v[3];
facesw[face * 3 + 2] = v[0];
uvsw[face * 3 + 0] = u[2];
uvsw[face * 3 + 1] = u[3];
uvsw[face * 3 + 2] = u[0];
smoothw[face] = smooth_faces;
invertw[face] = invert_val;
materialsw[face] = material;
face++;
}
}
if (i == 0 && !path_joined) {
for (int j = 0; j < triangles.size(); j += 3) {
for (int k = 0; k < 3; k++) {
int src[3] = { 0, 1, 2 };
Vector2 p = final_polygon[triangles[j + src[k]]];
Vector3 v = Vector3(p.x, p.y, 0);
facesw[face * 3 + k] = xf.xform(v);
uvsw[face * 3 + k] = (p - final_polygon_min) / final_polygon_size;
}
smoothw[face] = false;
materialsw[face] = material;
invertw[face] = invert_val;
face++;
}
}
if (i == splits && !path_joined) {
for (int j = 0; j < triangles.size(); j += 3) {
for (int k = 0; k < 3; k++) {
int src[3] = { 0, 2, 1 };
Vector2 p = final_polygon[triangles[j + src[k]]];
Vector3 v = Vector3(p.x, p.y, 0);
facesw[face * 3 + k] = xf.xform(v);
uvsw[face * 3 + k] = (p - final_polygon_min) / final_polygon_size;
uvsw[face * 3 + k].x = 1.0 - uvsw[face * 3 + k].x; /* flip x */
}
smoothw[face] = false;
materialsw[face] = material;
invertw[face] = invert_val;
face++;
}
}
prev_xf = xf;
}
Vector3 previous_point = curve->interpolate_baked(previous_offset);
Vector3 current_point = curve->interpolate_baked(current_offset);
Vector3 next_point = curve->interpolate_baked(next_offset);
Vector3 current_up = Vector3(0, 1, 0);
Vector3 direction = next_point - previous_point;
switch (path_rotation) {
case PATH_ROTATION_POLYGON:
direction = Vector3(0, 0, -1);
break;
case PATH_ROTATION_PATH:
break;
case PATH_ROTATION_PATH_FOLLOW:
current_up = curve->interpolate_baked_up_vector(current_offset);
break;
}
Transform3D facing = Transform3D().looking_at(direction, current_up);
current_xform = base_xform.translated(current_point) * facing;
} break;
}
if (face != face_count) {
ERR_PRINT("Face mismatch bug! fix code");
double u0 = x0 * u_step;
double u1 = ((x0 + 1) * u_step);
if (mode == MODE_PATH && !path_continuous_u) {
u0 = 0.0;
u1 = 1.0;
}
for (int i = 0; i < face_count * 3; i++) {
if (i == 0) {
aabb.position = facesw[i];
} else {
aabb.expand_to(facesw[i]);
}
// invert UVs on the Y-axis OpenGL = upside down
uvsw[i].y = 1.0 - uvsw[i].y;
for (int y0 = 0; y0 < shape_sides; y0++) {
int y1 = (y0 + 1) % shape_sides;
// Use the top half of the texture.
double v0 = (y0 * v_step) / 2;
double v1 = ((y0 + 1) * v_step) / 2;
Vector3 v[4] = {
previous_xform.xform(Vector3(shape_polygon[y0].x, shape_polygon[y0].y, 0)),
current_xform.xform(Vector3(shape_polygon[y0].x, shape_polygon[y0].y, 0)),
current_xform.xform(Vector3(shape_polygon[y1].x, shape_polygon[y1].y, 0)),
previous_xform.xform(Vector3(shape_polygon[y1].x, shape_polygon[y1].y, 0)),
};
Vector2 u[4] = {
Vector2(u0, v0),
Vector2(u1, v0),
Vector2(u1, v1),
Vector2(u0, v1),
};
// Face 1
facesw[face * 3 + 0] = v[0];
facesw[face * 3 + 1] = v[1];
facesw[face * 3 + 2] = v[2];
uvsw[face * 3 + 0] = u[0];
uvsw[face * 3 + 1] = u[1];
uvsw[face * 3 + 2] = u[2];
smoothw[face] = smooth_faces;
invertw[face] = invert_faces;
materialsw[face] = material;
face++;
// Face 2
facesw[face * 3 + 0] = v[2];
facesw[face * 3 + 1] = v[3];
facesw[face * 3 + 2] = v[0];
uvsw[face * 3 + 0] = u[2];
uvsw[face * 3 + 1] = u[3];
uvsw[face * 3 + 2] = u[0];
smoothw[face] = smooth_faces;
invertw[face] = invert_faces;
materialsw[face] = material;
face++;
}
}
if (end_count > 1) {
// Add back end face.
for (int face_idx = 0; face_idx < shape_face_count; face_idx++) {
for (int face_vertex_idx = 0; face_vertex_idx < 3; face_vertex_idx++) {
int index = shape_faces[face_idx * 3 + face_vertex_idx];
Point2 p = shape_polygon[index];
Point2 uv = (p - shape_rect.position) / shape_rect.size;
// Use the x-inverted ride side of the bottom half of the y-inverted texture.
uv.x = 1 - uv.x / 2;
uv.y = 1 - (uv.y / 2);
facesw[face * 3 + face_vertex_idx] = current_xform.xform(Vector3(p.x, p.y, 0));
uvsw[face * 3 + face_vertex_idx] = uv;
}
smoothw[face] = false;
materialsw[face] = material;
invertw[face] = invert_faces;
face++;
}
}
ERR_FAIL_COND_V_MSG(face != face_count, brush, "Bug: Failed to create the CSGPolygon mesh correctly.");
brush->build_from_faces(faces, uvs, smooth, materials, invert);
return brush;
@ -2152,10 +1977,10 @@ CSGBrush *CSGPolygon3D::_build_brush() {
void CSGPolygon3D::_notification(int p_what) {
if (p_what == NOTIFICATION_EXIT_TREE) {
if (path_cache) {
path_cache->disconnect("tree_exited", callable_mp(this, &CSGPolygon3D::_path_exited));
path_cache->disconnect("curve_changed", callable_mp(this, &CSGPolygon3D::_path_changed));
path_cache = nullptr;
if (path) {
path->disconnect("tree_exited", callable_mp(this, &CSGPolygon3D::_path_exited));
path->disconnect("curve_changed", callable_mp(this, &CSGPolygon3D::_path_changed));
path = nullptr;
}
}
}
@ -2180,7 +2005,7 @@ void CSGPolygon3D::_path_changed() {
}
void CSGPolygon3D::_path_exited() {
path_cache = nullptr;
path = nullptr;
}
void CSGPolygon3D::_bind_methods() {
@ -2202,10 +2027,10 @@ void CSGPolygon3D::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_path_node", "path"), &CSGPolygon3D::set_path_node);
ClassDB::bind_method(D_METHOD("get_path_node"), &CSGPolygon3D::get_path_node);
ClassDB::bind_method(D_METHOD("set_path_interval", "distance"), &CSGPolygon3D::set_path_interval);
ClassDB::bind_method(D_METHOD("set_path_interval", "interval"), &CSGPolygon3D::set_path_interval);
ClassDB::bind_method(D_METHOD("get_path_interval"), &CSGPolygon3D::get_path_interval);
ClassDB::bind_method(D_METHOD("set_path_rotation", "mode"), &CSGPolygon3D::set_path_rotation);
ClassDB::bind_method(D_METHOD("set_path_rotation", "path_rotation"), &CSGPolygon3D::set_path_rotation);
ClassDB::bind_method(D_METHOD("get_path_rotation"), &CSGPolygon3D::get_path_rotation);
ClassDB::bind_method(D_METHOD("set_path_local", "enable"), &CSGPolygon3D::set_path_local);
@ -2228,11 +2053,11 @@ void CSGPolygon3D::_bind_methods() {
ADD_PROPERTY(PropertyInfo(Variant::PACKED_VECTOR2_ARRAY, "polygon"), "set_polygon", "get_polygon");
ADD_PROPERTY(PropertyInfo(Variant::INT, "mode", PROPERTY_HINT_ENUM, "Depth,Spin,Path"), "set_mode", "get_mode");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "depth", PROPERTY_HINT_RANGE, "0.001,1000.0,0.001,or_greater,exp"), "set_depth", "get_depth");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "depth", PROPERTY_HINT_RANGE, "0.01,100.0,0.01,or_greater,exp"), "set_depth", "get_depth");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "spin_degrees", PROPERTY_HINT_RANGE, "1,360,0.1"), "set_spin_degrees", "get_spin_degrees");
ADD_PROPERTY(PropertyInfo(Variant::INT, "spin_sides", PROPERTY_HINT_RANGE, "3,64,1"), "set_spin_sides", "get_spin_sides");
ADD_PROPERTY(PropertyInfo(Variant::NODE_PATH, "path_node", PROPERTY_HINT_NODE_PATH_VALID_TYPES, "Path3D"), "set_path_node", "get_path_node");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "path_interval", PROPERTY_HINT_RANGE, "0.001,1000.0,0.001,or_greater,exp"), "set_path_interval", "get_path_interval");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "path_interval", PROPERTY_HINT_RANGE, "0.1,1.0,0.05,exp"), "set_path_interval", "get_path_interval");
ADD_PROPERTY(PropertyInfo(Variant::INT, "path_rotation", PROPERTY_HINT_ENUM, "Polygon,Path,PathFollow"), "set_path_rotation", "get_path_rotation");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "path_local"), "set_path_local", "is_path_local");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "path_continuous_u"), "set_path_continuous_u", "is_path_continuous_u");
@ -2301,7 +2126,7 @@ float CSGPolygon3D::get_spin_degrees() const {
return spin_degrees;
}
void CSGPolygon3D::set_spin_sides(const int p_spin_sides) {
void CSGPolygon3D::set_spin_sides(int p_spin_sides) {
ERR_FAIL_COND(p_spin_sides < 3);
spin_sides = p_spin_sides;
_make_dirty();
@ -2323,7 +2148,7 @@ NodePath CSGPolygon3D::get_path_node() const {
}
void CSGPolygon3D::set_path_interval(float p_interval) {
ERR_FAIL_COND_MSG(p_interval < 0.001, "Path interval cannot be smaller than 0.001.");
ERR_FAIL_COND_MSG(p_interval <= 0 || p_interval > 1, "Path interval must be greater than 0 and less than or equal to 1.0.");
path_interval = p_interval;
_make_dirty();
update_gizmos();
@ -2400,10 +2225,10 @@ CSGPolygon3D::CSGPolygon3D() {
spin_degrees = 360;
spin_sides = 8;
smooth_faces = false;
path_interval = 1;
path_rotation = PATH_ROTATION_PATH;
path_interval = 1.0;
path_rotation = PATH_ROTATION_PATH_FOLLOW;
path_local = false;
path_continuous_u = false;
path_continuous_u = true;
path_joined = false;
path_cache = nullptr;
path = nullptr;
}

7
modules/csg/csg_shape.h
View file

@ -34,6 +34,7 @@
#define CSGJS_HEADER_ONLY
#include "csg.h"
#include "scene/3d/path_3d.h"
#include "scene/3d/visual_instance_3d.h"
#include "scene/resources/concave_polygon_shape_3d.h"
#include "thirdparty/misc/mikktspace.h"
@ -168,10 +169,8 @@ public:
class CSGPrimitive3D : public CSGShape3D {
GDCLASS(CSGPrimitive3D, CSGShape3D);
private:
bool invert_faces;
protected:
bool invert_faces;
CSGBrush *_create_brush_from_arrays(const Vector<Vector3> &p_vertices, const Vector<Vector2> &p_uv, const Vector<bool> &p_smooth, const Vector<Ref<Material>> &p_materials);
static void _bind_methods();
@ -361,7 +360,7 @@ private:
PathRotation path_rotation;
bool path_local;
Node *path_cache;
Path3D *path;
bool smooth_faces;
bool path_continuous_u;

42
modules/csg/doc_classes/CSGPolygon3D.xml
View file

@ -4,7 +4,7 @@
Extrudes a 2D polygon shape to create a 3D mesh.
</brief_description>
<description>
This node takes a 2D polygon shape and extrudes it to create a 3D mesh.
An array of 2D points is extruded to quickly and easily create a variety of 3D meshes.
</description>
<tutorials>
</tutorials>
@ -12,63 +12,65 @@
</methods>
<members>
<member name="depth" type="float" setter="set_depth" getter="get_depth" default="1.0">
Extrusion depth when [member mode] is [constant MODE_DEPTH].
When [member mode] is [constant MODE_DEPTH], the depth of the extrusion.
</member>
<member name="material" type="Material" setter="set_material" getter="get_material">
Material to use for the resulting mesh.
Material to use for the resulting mesh. The UV maps the top half of the material to the extruded shape (U along the length of the extrusions and V around the outline of the [member polygon]), the bottom-left quarter to the front end face, and the bottom-right quarter to the back end face.
</member>
<member name="mode" type="int" setter="set_mode" getter="get_mode" enum="CSGPolygon3D.Mode" default="0">
Extrusion mode.
The [member mode] used to extrude the [member polygon].
</member>
<member name="path_continuous_u" type="bool" setter="set_path_continuous_u" getter="is_path_continuous_u">
If [code]true[/code] the u component of our uv will continuously increase in unison with the distance traveled along our path when [member mode] is [constant MODE_PATH].
When [member mode] is [constant MODE_PATH], by default, the top half of the [member material] is stretched along the entire length of the extruded shape. If [code]false[/code] the top half of the material is repeated every step of the extrusion.
</member>
<member name="path_interval" type="float" setter="set_path_interval" getter="get_path_interval">
Interval at which a new extrusion slice is added along the path when [member mode] is [constant MODE_PATH].
When [member mode] is [constant MODE_PATH], the path interval or ratio of path points to extrusions.
</member>
<member name="path_joined" type="bool" setter="set_path_joined" getter="is_path_joined">
If [code]true[/code] the start and end of our path are joined together ensuring there is no seam when [member mode] is [constant MODE_PATH].
When [member mode] is [constant MODE_PATH], if [code]true[/code] the ends of the path are joined, by adding an extrusion between the last and first points of the path.
</member>
<member name="path_local" type="bool" setter="set_path_local" getter="is_path_local">
If [code]false[/code] we extrude centered on our path, if [code]true[/code] we extrude in relation to the position of our CSGPolygon3D when [member mode] is [constant MODE_PATH].
When [member mode] is [constant MODE_PATH], if [code]true[/code] the [Transform3D] of the [CSGPolygon3D] is used as the starting point for the extrusions, not the [Transform3D] of the [member path_node].
</member>
<member name="path_node" type="NodePath" setter="set_path_node" getter="get_path_node">
The [Shape3D] object containing the path along which we extrude when [member mode] is [constant MODE_PATH].
When [member mode] is [constant MODE_PATH], the location of the [Path3D] object used to extrude the [member polygon].
</member>
<member name="path_rotation" type="int" setter="set_path_rotation" getter="get_path_rotation" enum="CSGPolygon3D.PathRotation">
The method by which each slice is rotated along the path when [member mode] is [constant MODE_PATH].
When [member mode] is [constant MODE_PATH], the [enum PathRotation] method used to rotate the [member polygon] as it is extruded.
</member>
<member name="polygon" type="PackedVector2Array" setter="set_polygon" getter="get_polygon" default="PackedVector2Array(0, 0, 0, 1, 1, 1, 1, 0)">
Point array that defines the shape that we'll extrude.
The point array that defines the 2D polygon that is extruded.
</member>
<member name="smooth_faces" type="bool" setter="set_smooth_faces" getter="get_smooth_faces" default="false">
Generates smooth normals so smooth shading is applied to our mesh.
If [code]true[/code], applies smooth shading to the extrusions.
</member>
<member name="spin_degrees" type="float" setter="set_spin_degrees" getter="get_spin_degrees">
Degrees to rotate our extrusion for each slice when [member mode] is [constant MODE_SPIN].
When [member mode] is [constant MODE_SPIN], the total number of degrees the [member polygon] is rotated when extruding.
</member>
<member name="spin_sides" type="int" setter="set_spin_sides" getter="get_spin_sides">
Number of extrusion when [member mode] is [constant MODE_SPIN].
When [member mode] is [constant MODE_SPIN], the number of extrusions made.
</member>
</members>
<constants>
<constant name="MODE_DEPTH" value="0" enum="Mode">
Shape3D is extruded to [member depth].
The [member polygon] shape is extruded along the negative Z axis.
</constant>
<constant name="MODE_SPIN" value="1" enum="Mode">
Shape3D is extruded by rotating it around an axis.
The [member polygon] shape is extruded by rotating it around the Y axis.
</constant>
<constant name="MODE_PATH" value="2" enum="Mode">
Shape3D is extruded along a path set by a [Shape3D] set in [member path_node].
The [member polygon] shape is extruded along the [Path3D] specified in [member path_node].
</constant>
<constant name="PATH_ROTATION_POLYGON" value="0" enum="PathRotation">
Slice is not rotated.
The [member polygon] shape is not rotated.
[b]Note:[/b] Requires the path Z coordinates to continually decrease to ensure viable shapes.
</constant>
<constant name="PATH_ROTATION_PATH" value="1" enum="PathRotation">
Slice is rotated around the up vector of the path.
The [member polygon] shape is rotated along the path, but it is not rotated around the path axis.
[b]Note:[/b] Requires the path Z coordinates to continually decrease to ensure viable shapes.
</constant>
<constant name="PATH_ROTATION_PATH_FOLLOW" value="2" enum="PathRotation">
Slice is rotate to match the path exactly.
The [member polygon] shape follows the path and its rotations around the path axis.
</constant>
</constants>
</class>