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Code Issues 150 Wiki Activity

Put the editor viewport into a top-down orthographic plan view

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Opening the Plan tool now switches the whole colour pass to an orthographic
projection and pins the camera looking straight down, so the plan is drawn
against the loaded scenery rather than in a window of its own. Closing the
tool hands the camera's orientation back; leaving the editor clears the view
outright. The wheel changes how much ground fits on screen instead of moving
the camera, which with no perspective would change nothing but the clipping.

Both configured backends follow: the experimental renderer swaps the pass
projection (and fits its shadow cascades to it), the modern GL renderer uses
its existing ortho helpers. Everything reading the pass projection - the
mouse ray, the frustum test - picks the change up on its own.

The experimental renderer also publishes its colour pass camera now, which
it previously left at the interface defaults, so overlays can place world
points on screen.
This commit is contained in:
maj00r
2026-07-31 19:15:17 +02:00
committed by maj00r
parent 4bef28cf94
commit db49039b9d
8 changed files with 109 additions and 12 deletions
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32
application/editormode.cpp
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@@ -1307,10 +1307,41 @@ void editor_mode::render_gizmo()
}
}
void editor_mode::on_scroll(double const Xoffset, double const Yoffset)
{
if (false == Global.editor_ortho)
{
return;
}
// in the plan view the wheel decides how much ground fits on screen; the camera itself stays put,
// because with no perspective its height changes nothing but the clipping
Global.editor_ortho_extent = std::clamp(Global.editor_ortho_extent * std::pow(0.85f, static_cast<float>(Yoffset)), 5.0f, 20000.0f);
}
void editor_mode::update_camera(double const Deltatime)
{
Camera.Update();
// the plan view looks straight down. the camera keeps its ground position, so panning works just
// as it does in the perspective view, but the orientation is pinned and handed back on the way out
if (Global.editor_ortho)
{
if (false == m_orthoactive)
{
m_orthoangle = Camera.Angle;
m_orthoactive = true;
}
Camera.Angle.x = glm::radians(-90.0f);
Camera.Angle.z = 0.0f;
// high enough to clear anything the scenery may have under the cursor
Camera.Pos.y = std::max(Camera.Pos.y, 500.0);
}
else if (m_orthoactive)
{
Camera.Angle = m_orthoangle;
m_orthoactive = false;
}
// focus animation runs after Camera.Update() so it overrides any residual velocity/rotation;
// it smoothly drives both position and orientation toward the framed object
if (m_focus_active)
@@ -1391,6 +1422,7 @@ void editor_mode::enter()
void editor_mode::exit()
{
EditorModeFlag = false;
Global.editor_ortho = false; // the plan view must not follow us out of the editor
Global.ControlPicking = m_statebackup.picking;
FreeFlyModeFlag = m_statebackup.freefly;
Global.pCamera = m_statebackup.camera;