evan/ludum-dare-48
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Big fancy shaders

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This commit is contained in:
Evan Pratten 2021-04-25 18:15:45 -04:00
parent 86603bf729
commit dbc620aa03
2 changed files with 31 additions and 5 deletions
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4
assets/shaders/pixel.fs
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@ -31,8 +31,8 @@ void main()
vec2 baseUV = fragTexCoord; vec2 baseUV = fragTexCoord;
// Use a wave function to translate the pixel UV // Use a wave function to translate the pixel UV
float X = baseUV.x*5.+time; float X = baseUV.x*0.5+time;
float Y = baseUV.y*5.+time; float Y = baseUV.y*0.5+time;
baseUV.y += cos(X+Y)*0.01*cos(Y); baseUV.y += cos(X+Y)*0.01*cos(Y);
baseUV.x += sin(X-Y)*0.01*sin(Y); baseUV.x += sin(X-Y)*0.01*sin(Y);

32
src/logic/ingame/mod.rs
View File

@ -65,7 +65,12 @@ impl InGameScreen {
width: game_core.resources.background_back.width as f32, width: game_core.resources.background_back.width as f32,
height: game_core.resources.background_back.height as f32, height: game_core.resources.background_back.height as f32,
}, },
Rectangle::new(0.0,0.0, (game_core.resources.background_back.width * 2) as f32, (game_core.resources.background_back.height * 2) as f32), Rectangle::new(
0.0,
0.0,
(game_core.resources.background_back.width * 2) as f32,
(game_core.resources.background_back.height * 2) as f32,
),
Vector2 { x: 0.0, y: 0.0 }, Vector2 { x: 0.0, y: 0.0 },
0.0, 0.0,
Color::WHITE, Color::WHITE,
@ -78,7 +83,12 @@ impl InGameScreen {
width: game_core.resources.background_front.width as f32, width: game_core.resources.background_front.width as f32,
height: game_core.resources.background_front.height as f32, height: game_core.resources.background_front.height as f32,
}, },
Rectangle::new(0.0 ,0.0, (game_core.resources.background_front.width * 2) as f32,(game_core.resources.background_front.height * 2) as f32), Rectangle::new(
0.0,
0.0,
(game_core.resources.background_front.width * 2) as f32,
(game_core.resources.background_front.height * 2) as f32,
),
Vector2 { x: 0.0, y: 0.0 }, Vector2 { x: 0.0, y: 0.0 },
0.0, 0.0,
Color::WHITE, Color::WHITE,
@ -251,13 +261,22 @@ impl Screen for InGameScreen {
} }
} }
// Update the shader's internal time
unsafe {
let time_var_location = raylib::ffi::GetShaderLocation(
*game_core.resources.pixel_shader,
rstr!("time").as_ptr(),
);
game_core.resources.pixel_shader.set_shader_value(time_var_location, draw_handle.get_time() as f32);
}
// Render the 2D context via the ripple shader // Render the 2D context via the ripple shader
{ {
let mut shader_context = let mut shader_context =
draw_handle.begin_shader_mode(&game_core.resources.pixel_shader); draw_handle.begin_shader_mode(&game_core.resources.pixel_shader);
// Blit the texture // Blit the texture
shader_context.draw_texture_rec( shader_context.draw_texture_pro(
&game_core.resources.shader_texture, &game_core.resources.shader_texture,
Rectangle { Rectangle {
x: 0.0, x: 0.0,
@ -265,7 +284,14 @@ impl Screen for InGameScreen {
width: game_core.resources.shader_texture.width() as f32, width: game_core.resources.shader_texture.width() as f32,
height: (game_core.resources.shader_texture.height() as f32) * -1.0, height: (game_core.resources.shader_texture.height() as f32) * -1.0,
}, },
Rectangle {
x: -10.0,
y: -10.0,
width: win_width as f32 + 20.0,
height: win_height as f32 + 20.0
},
Vector2::zero(), Vector2::zero(),
0.0,
Color::WHITE, Color::WHITE,
); );
} }