shadows are working idk

.gitignore

@@ -1,6 +1,7 @@
 /quic_server.crt
 /target
 **/*.rs.bk
+/videos
 
 *.blend*
 *.trace

src/bin/platformer.rs

@@ -73,7 +73,10 @@ struct GameGraphics {
 	text_stream: TriangleStream,
 	
 	texture_crate: Texture,
+	texture_earth: Texture,
 	texture_sky: Texture,
+	
+	frames: u64,
 }
 
 impl ShaderLookup for GameGraphics {
@@ -92,8 +95,9 @@ impl GameGraphics {
 		
 		let white = color_from_255 ((255.0, 255.0, 255.0));
 		let black = color_from_255 ((0.0, 0.0, 0.0));
+		let shadow_blue = color_from_255 ((0.0, 0.0, 0.25));
 		
-		let screen_size = (1280.0, 720.0);
+		let screen_size = (320.0, 240.0);
 		
 		let fov = 30.0f32;
 		
@@ -114,13 +118,14 @@ impl GameGraphics {
 			let attrs = shader_vars.attrs;
 			let unis = shader_vars.unis;
 			
-			self.texture_sky.bind ();
+			self.texture_earth.bind ();
 			
 			{
 				let mvp = view_mat * 
 				Mat4::from_translation (state.player.pos) * 
 				Mat4::from_scale ((0.5, 0.5, 0.5).into ());
 				glezz::uniform_matrix_4fv (unis [&u::MVP], &mvp);
+				glezz::uniform_3fv (unis [&u::ALBEDO], &white);
 				
 				self.mesh_sphere.draw_all (attrs, |_| {
 					true
@@ -128,6 +133,7 @@ impl GameGraphics {
 			}
 			
 			self.texture_crate.bind ();
+			glezz::uniform_3fv (unis [&u::ALBEDO], &white);
 			
 			for aabb in &state.aabbs {
 				let min = aabb.min;
@@ -145,6 +151,55 @@ impl GameGraphics {
 				});
 			}
 			
+			glezz::uniform_3fv (unis [&u::ALBEDO], &shadow_blue);
+			
+			if true {
+				// Raycast for player shadow
+				let coll = opengl_rust::physics::get_candidate (
+					&[], &state.aabbs,
+					state.player.pos,
+					state.player.pos + Vec3::new (0.0, 0.0, -100.0),
+					0.0
+				);
+				
+				if coll.t <= 1.0 {
+					let mvp = view_mat * 
+					Mat4::from_translation (coll.p_impact + Vec3::new (0.0, 0.0, 0.0625)) * 
+					Mat4::from_scale ((0.5, 0.5, 0.0).into ());
+					glezz::uniform_matrix_4fv (unis [&u::MVP], &mvp);
+					
+					self.mesh_sphere.draw_all (attrs, |_| {
+						true
+					});
+				}
+				
+				for aabb in &state.aabbs {
+					// Raycast for box shadows
+					let min = aabb.min;
+					let max = aabb.max;
+					let center = (min + max) / 2.0;
+					let scale = (max - min) / 2.0;
+					
+					let coll = opengl_rust::physics::get_candidate (
+						&[], &state.aabbs,
+						center,
+						center + Vec3::new (0.0, 0.0, -100.0),
+						0.0
+					);
+					
+					if coll.t <= 1.0 {
+						let mvp = view_mat * 
+						Mat4::from_translation (coll.p_impact + Vec3::new (0.0, 0.0, 0.0625)) * 
+						Mat4::from_scale ((scale.x, scale.y, 0.0).into ());
+						glezz::uniform_matrix_4fv (unis [&u::MVP], &mvp);
+						
+						self.mesh_cube.draw_all (attrs, |_| {
+							true
+						});
+					}
+				}
+			}
+			
 			{
 				let sky_mvp_mat = view_mat * Mat4::from_scale ((64.0, 64.0, 64.0).into ());
 				
@@ -170,7 +225,7 @@ async fn main () -> Result <()> {
 	
 	let sdl_context = sdl2::init ().map_err (|e| anyhow! ("Can't init SDL: {}", e))?;
 	let video_subsystem = sdl_context.video ().map_err (|e| anyhow! ("Can't get SDL video subsystem: {}", e))?;
-	let window = video_subsystem.window ("3D platformer", 1280, 720)
+	let window = video_subsystem.window ("3D platformer", 320, 240)
 		.position_centered ()
 		.opengl ()
 		.build ()
@@ -275,7 +330,7 @@ async fn main () -> Result <()> {
 		glezz::enable_vertex_attrib_array (attrs [attributes::NORMAL]);
 	});
 	
-	let graphics = GameGraphics {
+	let mut graphics = GameGraphics {
 		mesh_cube,
 		mesh_sky,
 		mesh_sphere,
@@ -284,7 +339,9 @@ async fn main () -> Result <()> {
 		shaders,
 		text_stream,
 		texture_crate: Texture::from_file ("crate.png"),
+		texture_earth: Texture::from_file ("earth.png"),
 		texture_sky: Texture::from_file ("sky.png"),
+		frames: 0,
 	};
 	
 	let mut gl_state = Default::default ();
@@ -374,9 +431,9 @@ async fn main () -> Result <()> {
 		window.gl_make_current (&gl_ctx).unwrap ();
 		
 		graphics.draw (&game_state, &mut gl_state);
+		graphics.frames += 1;
 		
 		window.gl_swap_window ();
-		graphics_frames += 1;
 		
 		tokio::time::sleep (Duration::from_millis (15)).await;
 	}

src/physics.rs

@@ -59,8 +59,8 @@ impl Triangle {
 
 #[derive (Clone, Copy, Debug, PartialEq)]
 pub struct Collision {
-	t: f32,
-	p_impact: Vec3,
+	pub t: f32,
+	pub p_impact: Vec3,
 	normal: Vec3,
 	i: usize,
 	c_type: CollisionType,

src/timestep.rs

@@ -12,7 +12,7 @@ impl TimeStep {
 	pub fn new (fps_num: u16, fps_den: u16) -> Self {
 		Self {
 			last_frame_time: Instant::now (),
-			accum: 0,
+			accum: (fps_den / 2).into (),
 			fps_num,
 			fps_den,
 		}