32af4b7dc3
Idea being this would be easier to grasp for end-users. Problem with the logical defaults is this breaks current setups, because light will become 20 times less bright. But most folks won't have customized this resource or will not have used `..Default::default()` due to lack of other fields.
75 lines
1.7 KiB
Rust
75 lines
1.7 KiB
Rust
use bevy_core::Byteable;
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use bevy_ecs::reflect::ReflectComponent;
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use bevy_reflect::Reflect;
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use bevy_render::{
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camera::{CameraProjection, PerspectiveProjection},
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color::Color,
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};
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use bevy_transform::components::GlobalTransform;
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use std::ops::Range;
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/// A point light
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#[derive(Debug, Reflect)]
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#[reflect(Component)]
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pub struct Light {
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pub color: Color,
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pub fov: f32,
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pub depth: Range<f32>,
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}
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impl Default for Light {
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fn default() -> Self {
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Light {
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color: Color::rgb(1.0, 1.0, 1.0),
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depth: 0.1..50.0,
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fov: f32::to_radians(60.0),
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}
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}
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}
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#[repr(C)]
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#[derive(Debug, Clone, Copy)]
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pub(crate) struct LightRaw {
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pub proj: [[f32; 4]; 4],
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pub pos: [f32; 4],
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pub color: [f32; 4],
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}
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unsafe impl Byteable for LightRaw {}
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impl LightRaw {
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pub fn from(light: &Light, global_transform: &GlobalTransform) -> LightRaw {
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let perspective = PerspectiveProjection {
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fov: light.fov,
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aspect_ratio: 1.0,
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near: light.depth.start,
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far: light.depth.end,
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};
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let proj = perspective.get_projection_matrix() * global_transform.compute_matrix();
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let (x, y, z) = global_transform.translation.into();
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LightRaw {
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proj: proj.to_cols_array_2d(),
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pos: [x, y, z, 1.0],
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color: light.color.into(),
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}
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}
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}
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// Ambient light color.
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#[derive(Debug)]
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pub struct AmbientLight {
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pub color: Color,
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/// Color is premultiplied by brightness before being passed to the shader
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pub brightness: f32,
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}
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impl Default for AmbientLight {
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fn default() -> Self {
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Self {
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color: Color::rgb(1.0, 1.0, 1.0),
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brightness: 0.05,
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}
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}
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}
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