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Shadows

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This commit is contained in:
Jon Ziebell 2026-02-21 20:10:44 -05:00
parent 851f65c8fb
commit f7f5252ea9
1 changed files with 38 additions and 16 deletions
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54
js/component/scene/light.js
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@ -84,6 +84,40 @@ beestat.component.scene.prototype.add_static_lights_ = function() {
};
/**
* Directional sun and moon lights that provide natural lighting. Only
* visible when the environment layer is enabled. Positions are calculated based
* on time of day and location.
*/
beestat.component.scene.prototype.get_celestial_shadow_frustum_extent_ = function() {
const bounding_box = this.get_scene_bounding_box_();
const plan_width = Math.max(1, Number(bounding_box.right - bounding_box.left));
const plan_height = Math.max(1, Number(bounding_box.bottom - bounding_box.top));
const half_span = Math.max(plan_width, plan_height) / 2;
const environment_padding = Math.max(0, beestat.component.scene.environment_padding || 0);
const caster_margin = 420;
// Extra scale keeps long low-angle shadows inside the ortho shadow camera.
return Math.max(1000, (half_span + environment_padding + caster_margin) * 1.45);
};
/**
* Configure a directional light shadow camera to cover the current scene size.
*
* @param {THREE.DirectionalLight} light
*/
beestat.component.scene.prototype.configure_celestial_shadow_camera_ = function(light) {
const extent = this.get_celestial_shadow_frustum_extent_();
light.shadow.camera.left = -extent;
light.shadow.camera.right = extent;
light.shadow.camera.top = extent;
light.shadow.camera.bottom = -extent;
light.shadow.camera.near = 0.5;
light.shadow.camera.far = Math.max(5000, extent * 6);
light.shadow.camera.updateProjectionMatrix();
};
/**
* Directional sun and moon lights that provide natural lighting. Only
* visible when the environment layer is enabled. Positions are calculated based
@ -116,14 +150,8 @@ beestat.component.scene.prototype.add_celestial_lights_ = function() {
this.sun_light_.shadow.mapSize.set(2048, 2048);
this.sun_light_.shadow.bias = -0.001;
// Configure shadow camera frustum
this.sun_light_.shadow.camera.left = -1000;
this.sun_light_.shadow.camera.right = 1000;
this.sun_light_.shadow.camera.top = 1000;
this.sun_light_.shadow.camera.bottom = -1000;
this.sun_light_.shadow.camera.near = 0.5;
this.sun_light_.shadow.camera.far = 5000;
this.sun_light_.shadow.camera.updateProjectionMatrix();
// Configure shadow camera frustum based on scene size.
this.configure_celestial_shadow_camera_(this.sun_light_);
// Set target to world origin (0,0,0) so light always points there
this.sun_light_.target.position.set(0, 0, 0);
@ -197,14 +225,8 @@ beestat.component.scene.prototype.add_celestial_lights_ = function() {
this.moon_light_.shadow.mapSize.set(2048, 2048);
this.moon_light_.shadow.bias = -0.001;
// Configure shadow camera frustum
this.moon_light_.shadow.camera.left = -1000;
this.moon_light_.shadow.camera.right = 1000;
this.moon_light_.shadow.camera.top = 1000;
this.moon_light_.shadow.camera.bottom = -1000;
this.moon_light_.shadow.camera.near = 0.5;
this.moon_light_.shadow.camera.far = 5000;
this.moon_light_.shadow.camera.updateProjectionMatrix();
// Configure shadow camera frustum based on scene size.
this.configure_celestial_shadow_camera_(this.moon_light_);
// Set target to world origin
this.moon_light_.target.position.set(0, 0, 0);