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Code Issues 154 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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35
betterRenderer/renderer/source/nvrenderer.cpp
View File

@@ -352,9 +352,26 @@ bool NvRenderer::Render() {
double fov = glm::radians(static_cast<double>(Global.FieldOfView) /
Global.ZoomFactor);
glm::dmat4 projection = glm::perspectiveFovRH_ZO(
fov, static_cast<double>(Global.window_size.x),
static_cast<double>(Global.window_size.y), pass.m_draw_range, .1);
// the track plan is drawn on a distortion-free view from above, so the whole pass switches to
// an orthographic projection. everything downstream - the mouse ray below, the frustum test,
// the shadow fitting - reads this matrix, so nothing else needs to know which one it is
double const orthoheight = Global.editor_ortho_extent;
double const orthowidth =
orthoheight * static_cast<double>(Global.window_size.x) /
std::max(1., static_cast<double>(Global.window_size.y));
glm::dmat4 projection =
Global.editor_ortho
? glm::orthoRH_ZO(-orthowidth, orthowidth, -orthoheight,
orthoheight, pass.m_draw_range, .1)
: glm::perspectiveFovRH_ZO(
fov, static_cast<double>(Global.window_size.x),
static_cast<double>(Global.window_size.y),
pass.m_draw_range, .1);
m_camera_view = transform;
m_camera_projection = projection;
m_camera_position = pass.m_origin;
SingleFrustumTester frustum_tester{projection, transform};
DrawConstants draw_constants{};
@@ -471,11 +488,15 @@ bool NvRenderer::Render() {
glm::vec3 light_color, light_direction;
m_sky->CalcLighting(light_direction, light_color);
// cascades are fitted to what the camera actually sees, so they follow the plan view too
m_shadow_map->CalcCascades(
glm::perspectiveFovRH_ZO(fov,
static_cast<double>(Global.window_size.x),
static_cast<double>(Global.window_size.y),
.1, pass.m_draw_range),
Global.editor_ortho
? glm::orthoRH_ZO(-orthowidth, orthowidth, -orthoheight,
orthoheight, .1, pass.m_draw_range)
: glm::perspectiveFovRH_ZO(
fov, static_cast<double>(Global.window_size.x),
static_cast<double>(Global.window_size.y), .1,
pass.m_draw_range),
transform, -light_direction);
m_shadow_map->UpdateConstants(command_list);
m_gbuffer_shadow->Clear(command_list);