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Added support for textured outlines in PaintCurve2D.

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Relintai 2023-08-26 21:19:55 +02:00
parent bc99a23af0
commit fc91416394
2 changed files with 108 additions and 9 deletions
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113
modules/paint/nodes/curve_2d/paint_curve_2d.cpp
View File

@ -117,15 +117,20 @@ void PaintCurve2D::_notification(int p_what) {
if (_outline_enabled) {
_cached_draw_pts = Variant(curve->tessellate());
{
int len = _cached_draw_pts.size();
Vector2 *ppw = _cached_draw_pts.ptrw();
for (int i = 0; i < len; i++) {
ppw[i] = ppw[i];
}
}
if (_outline_texture.is_valid()) {
Vector<Vector2> points;
Vector<Vector2> uvs;
Vector<Color> colors;
Vector<int> indices;
draw_polyline(_cached_draw_pts, _outline_color, _outline_width, _outline_antialiased);
_prepare_render_data_outline(points, uvs, colors, indices);
if (indices.size()) {
RS::get_singleton()->canvas_item_add_triangle_array(get_canvas_item(), indices, points, colors, uvs, Vector<int>(), Vector<float>(), _outline_texture.is_valid() ? _outline_texture->get_rid() : RID(), -1, RID(), _outline_antialiased);
}
} else {
draw_polyline(_cached_draw_pts, _outline_color, _outline_width, _outline_antialiased);
}
}
}
}
@ -625,6 +630,45 @@ PoolVector2Array PaintCurve2D::generate_uvs(const Vector<Vector2> &p_points, con
return uvs;
}
void PaintCurve2D::generate_polyline_mesh(const Vector<Point2> &p_points, float p_width, Vector<Vector2> &r_triangles, Vector<int> &r_indices) {
Vector2 prev_t;
r_triangles.resize(p_points.size() * 2);
r_indices.resize(p_points.size() * 6);
for (int i = 0; i < p_points.size(); i++) {
Vector2 t;
if (i == p_points.size() - 1) {
t = prev_t;
} else {
t = (p_points[i + 1] - p_points[i]).normalized().tangent();
if (i == 0) {
prev_t = t;
}
}
Vector2 tangent = ((t + prev_t).normalized()) * p_width * 0.5;
r_triangles.write[i * 2 + 0] = p_points[i] + tangent;
r_triangles.write[i * 2 + 1] = p_points[i] - tangent;
if (i != 0) {
int indx = (i - 1) * 2;
int iindx = (i - 1) * 6;
r_indices.write[iindx] = indx;
r_indices.write[iindx + 1] = indx + 1;
r_indices.write[iindx + 2] = indx + 3;
r_indices.write[iindx + 3] = indx + 0;
r_indices.write[iindx + 4] = indx + 2;
r_indices.write[iindx + 5] = indx + 3;
}
prev_t = t;
}
}
void PaintCurve2D::_prepare_render_data_fill(Vector<Vector2> &r_points, Vector<Vector2> &r_uvs, Vector<Color> &r_colors, Vector<int> &r_indices) {
if (!curve.is_valid()) {
return;
@ -720,6 +764,57 @@ void PaintCurve2D::_prepare_render_data_fill(Vector<Vector2> &r_points, Vector<V
r_indices = Geometry::triangulate_polygon(r_points);
}
void PaintCurve2D::_prepare_render_data_outline(Vector<Vector2> &r_points, Vector<Vector2> &r_uvs, Vector<Color> &r_colors, Vector<int> &r_indices) {
if (!curve.is_valid()) {
return;
}
if (_outline_width <= 0) {
return;
}
int curve_len = curve->get_point_count();
if (curve_len < 2) {
return;
}
PoolVector2Array polygon = curve->tessellate();
int len = polygon.size();
Vector<Vector2> curve_points;
curve_points.resize(len);
{
PoolVector<Vector2>::Read polyr = polygon.read();
for (int i = 0; i < len; i++) {
curve_points.write[i] = polyr[i];
}
}
generate_polyline_mesh(curve_points, _outline_width, r_points, r_indices);
len = r_points.size();
if (_outline_texture.is_valid()) {
Transform2D texmat(_outline_tex_rot, _outline_tex_ofs);
texmat.scale(_outline_tex_scale);
//Size2 tex_size = _outline_texture->get_size();
PoolVector2Array uv = generate_uvs(r_points);
r_uvs.resize(len);
PoolVector<Vector2>::Read uvr = uv.read();
for (int i = 0; i < len; i++) {
r_uvs.write[i] = texmat.xform(uvr[i]);
}
}
r_colors.push_back(_outline_color);
}
void PaintCurve2D::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_curve", "curve"), &PaintCurve2D::set_curve);
ClassDB::bind_method(D_METHOD("get_curve"), &PaintCurve2D::get_curve);
@ -825,7 +920,7 @@ PaintCurve2D::PaintCurve2D() {
_outline_enabled = true;
//_outline_color = Color(0.5, 0.6, 1.0, 0.7);
_outline_width = 2;
_fill_tex_scale = Vector2(1, 1);
_outline_tex_scale = Vector2(1, 1);
_outline_tex_tile = false;
_outline_tex_rot = 0;
_outline_antialiased = true;

4
modules/paint/nodes/curve_2d/paint_curve_2d.h
View File

@ -113,7 +113,11 @@ protected:
//Todo this should probably be moved to Geometry, or maybe MeshUtils
PoolVector2Array generate_uvs(const Vector<Vector2> &p_points);
PoolVector2Array generate_uvs(const Vector<Vector2> &p_points, const Rect2 &p_uv_rect);
void generate_polyline_mesh(const Vector<Point2> &p_points, float p_width, Vector<Vector2> &r_triangless, Vector<int> &r_indices);
void _prepare_render_data_fill(Vector<Vector2> &r_points, Vector<Vector2> &r_uvs, Vector<Color> &r_colors, Vector<int> &r_indices);
void _prepare_render_data_outline(Vector<Vector2> &r_points, Vector<Vector2> &r_uvs, Vector<Color> &r_colors, Vector<int> &r_indices);
void _notification(int p_what);
static void _bind_methods();