Finished picking by color with a checksum in the alpha channel

to guard against unwanted alpha blending and / or multi sampling.
This commit is contained in:
bubnikv 2019-08-07 14:15:38 +02:00
parent 2ad3c05a65
commit 2d7f478dac
10 changed files with 89 additions and 74 deletions

View file

@ -104,15 +104,15 @@ void GLGizmoMove3D::on_render() const
// x axis
m_grabbers[0].center = Vec3d(box.max(0) + Offset, center(1), center(2));
::memcpy((void*)m_grabbers[0].color, (const void*)&AXES_COLOR[0], 3 * sizeof(float));
::memcpy((void*)m_grabbers[0].color, (const void*)&AXES_COLOR[0], 4 * sizeof(float));
// y axis
m_grabbers[1].center = Vec3d(center(0), box.max(1) + Offset, center(2));
::memcpy((void*)m_grabbers[1].color, (const void*)&AXES_COLOR[1], 3 * sizeof(float));
::memcpy((void*)m_grabbers[1].color, (const void*)&AXES_COLOR[1], 4 * sizeof(float));
// z axis
m_grabbers[2].center = Vec3d(center(0), center(1), box.max(2) + Offset);
::memcpy((void*)m_grabbers[2].color, (const void*)&AXES_COLOR[2], 3 * sizeof(float));
::memcpy((void*)m_grabbers[2].color, (const void*)&AXES_COLOR[2], 4 * sizeof(float));
glsafe(::glLineWidth((m_hover_id != -1) ? 2.0f : 1.5f));
@ -123,7 +123,7 @@ void GLGizmoMove3D::on_render() const
{
if (m_grabbers[i].enabled)
{
glsafe(::glColor3fv(AXES_COLOR[i]));
glsafe(::glColor4fv(AXES_COLOR[i]));
::glBegin(GL_LINES);
::glVertex3dv(center.data());
::glVertex3dv(m_grabbers[i].center.data());
@ -142,7 +142,7 @@ void GLGizmoMove3D::on_render() const
else
{
// draw axis
glsafe(::glColor3fv(AXES_COLOR[m_hover_id]));
glsafe(::glColor4fv(AXES_COLOR[m_hover_id]));
::glBegin(GL_LINES);
::glVertex3dv(center.data());
::glVertex3dv(m_grabbers[m_hover_id].center.data());
@ -220,19 +220,20 @@ void GLGizmoMove3D::render_grabber_extension(Axis axis, const BoundingBoxf3& box
float mean_size = (float)((box.size()(0) + box.size()(1) + box.size()(2)) / 3.0);
double size = m_dragging ? (double)m_grabbers[axis].get_dragging_half_size(mean_size) : (double)m_grabbers[axis].get_half_size(mean_size);
float color[3];
::memcpy((void*)color, (const void*)m_grabbers[axis].color, 3 * sizeof(float));
float color[4];
::memcpy((void*)color, (const void*)m_grabbers[axis].color, 4 * sizeof(float));
if (!picking && (m_hover_id != -1))
{
color[0] = 1.0f - color[0];
color[1] = 1.0f - color[1];
color[2] = 1.0f - color[2];
color[3] = color[3];
}
if (!picking)
glsafe(::glEnable(GL_LIGHTING));
glsafe(::glColor3fv(color));
glsafe(::glColor4fv(color));
glsafe(::glPushMatrix());
glsafe(::glTranslated(m_grabbers[axis].center(0), m_grabbers[axis].center(1), m_grabbers[axis].center(2)));
if (axis == X)