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shadow_biases: Support different PCF methods (#10184)
# Objective - Demonstrate the different shadow PCF methods in the `shadow_biases` example ## Solution - Cycle through the available methods when pressing the `F` key - Display which filter method is being used
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1 changed files with 44 additions and 10 deletions
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@ -2,7 +2,7 @@
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use std::f32::consts::PI;
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use bevy::{input::mouse::MouseMotion, prelude::*};
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use bevy::{input::mouse::MouseMotion, pbr::ShadowFilteringMethod, prelude::*};
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fn main() {
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App::new()
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@ -11,6 +11,7 @@ fn main() {
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.add_systems(
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Update,
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(
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cycle_filter_methods,
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adjust_point_light_biases,
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toggle_light,
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adjust_directional_light_biases,
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@ -82,6 +83,7 @@ fn setup(
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..default()
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},
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CameraController::default(),
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ShadowFilteringMethod::Hardware2x2,
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));
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for z_i32 in (-spawn_plane_depth as i32..=0).step_by(2) {
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@ -115,6 +117,9 @@ fn setup(
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),
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TextSection::new("DirectionalLight", style.clone()),
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TextSection::new("]\n", style.clone()),
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TextSection::new("F - switch between filter methods [", style.clone()),
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TextSection::new("Hardware2x2", style.clone()),
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TextSection::new("]\n", style.clone()),
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TextSection::new("1/2 - change point light depth bias [", style.clone()),
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TextSection::new("0.00", style.clone()),
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TextSection::new("]\n", style.clone()),
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@ -129,7 +134,7 @@ fn setup(
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style.clone(),
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),
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TextSection::new("0.0", style.clone()),
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TextSection::new("]", style),
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TextSection::new("]\n", style.clone()),
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])
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.with_style(Style {
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position_type: PositionType::Absolute,
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@ -166,6 +171,33 @@ fn toggle_light(
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}
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}
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fn cycle_filter_methods(
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input: Res<Input<KeyCode>>,
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mut filter_methods: Query<&mut ShadowFilteringMethod>,
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mut example_text: Query<&mut Text>,
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) {
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if input.just_pressed(KeyCode::F) {
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for mut filter_method in &mut filter_methods {
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let filter_method_string;
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*filter_method = match *filter_method {
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ShadowFilteringMethod::Hardware2x2 => {
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filter_method_string = "Castano13".to_string();
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ShadowFilteringMethod::Castano13
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}
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ShadowFilteringMethod::Castano13 => {
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filter_method_string = "Jimenez14".to_string();
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ShadowFilteringMethod::Jimenez14
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}
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ShadowFilteringMethod::Jimenez14 => {
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filter_method_string = "Hardware2x2".to_string();
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ShadowFilteringMethod::Hardware2x2
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}
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};
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example_text.single_mut().sections[7].value = filter_method_string;
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}
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}
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}
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fn adjust_point_light_biases(
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input: Res<Input<KeyCode>>,
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mut query: Query<&mut PointLight>,
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@ -176,20 +208,22 @@ fn adjust_point_light_biases(
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for mut light in &mut query {
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if input.just_pressed(KeyCode::Key1) {
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light.shadow_depth_bias -= depth_bias_step_size;
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example_text.single_mut().sections[7].value = format!("{:.2}", light.shadow_depth_bias);
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example_text.single_mut().sections[10].value =
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format!("{:.2}", light.shadow_depth_bias);
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}
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if input.just_pressed(KeyCode::Key2) {
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light.shadow_depth_bias += depth_bias_step_size;
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example_text.single_mut().sections[7].value = format!("{:.2}", light.shadow_depth_bias);
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example_text.single_mut().sections[10].value =
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format!("{:.2}", light.shadow_depth_bias);
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}
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if input.just_pressed(KeyCode::Key3) {
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light.shadow_normal_bias -= normal_bias_step_size;
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example_text.single_mut().sections[10].value =
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example_text.single_mut().sections[13].value =
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format!("{:.1}", light.shadow_normal_bias);
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}
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if input.just_pressed(KeyCode::Key4) {
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light.shadow_normal_bias += normal_bias_step_size;
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example_text.single_mut().sections[10].value =
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example_text.single_mut().sections[13].value =
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format!("{:.1}", light.shadow_normal_bias);
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}
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}
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@ -205,22 +239,22 @@ fn adjust_directional_light_biases(
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for mut light in &mut query {
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if input.just_pressed(KeyCode::Key5) {
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light.shadow_depth_bias -= depth_bias_step_size;
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example_text.single_mut().sections[13].value =
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example_text.single_mut().sections[16].value =
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format!("{:.2}", light.shadow_depth_bias);
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}
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if input.just_pressed(KeyCode::Key6) {
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light.shadow_depth_bias += depth_bias_step_size;
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example_text.single_mut().sections[13].value =
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example_text.single_mut().sections[16].value =
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format!("{:.2}", light.shadow_depth_bias);
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}
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if input.just_pressed(KeyCode::Key7) {
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light.shadow_normal_bias -= normal_bias_step_size;
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example_text.single_mut().sections[16].value =
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example_text.single_mut().sections[19].value =
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format!("{:.1}", light.shadow_normal_bias);
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}
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if input.just_pressed(KeyCode::Key8) {
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light.shadow_normal_bias += normal_bias_step_size;
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example_text.single_mut().sections[16].value =
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example_text.single_mut().sections[19].value =
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format!("{:.1}", light.shadow_normal_bias);
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}
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}
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