18195bfa91
Control ambient light color via resource The AmbientLight resource now controls the ambient light color in the pbr fragment shader.
70 lines
1.5 KiB
Rust
70 lines
1.5 KiB
Rust
use bevy_core::Byteable;
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use bevy_property::Properties;
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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, Properties)]
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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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}
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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(0.05, 0.05, 0.05),
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}
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}
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}
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