diff options
| -rw-r--r-- | wiki/examples/close_custom_shader.frag | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/wiki/examples/close_custom_shader.frag b/wiki/examples/close_custom_shader.frag index 8a777b99..f45ec22e 100644 --- a/wiki/examples/close_custom_shader.frag +++ b/wiki/examples/close_custom_shader.frag @@ -105,9 +105,43 @@ vec4 default_close(vec3 coords_geo, vec3 size_geo) { return color; } +// Example: make the window "fall down" with slight rotation. +vec4 fall_and_rotate(vec3 coords_geo, vec3 size_geo) { + // For this shader, set animation curve to linear for best results. + + // Simulate an accelerated fall: square the (linear) progress. + float progress = niri_clamped_progress * niri_clamped_progress; + + // Get our rotation pivot point coordinates at the bottom center of the window. + vec2 coords = (coords_geo.xy - vec2(0.5, 1.0)) * size_geo.xy; + + // Move the window down to simulate a fall. + coords.y -= progress * 200.0; + + // Randomize rotation direction and maximum angle. + float random = (niri_random_seed - 0.5) / 2.0; + random = sign(random) - random; + float max_angle = 0.05 * random; + + // Rotate the window around our pivot point. + float angle = progress * max_angle; + mat2 rotate = mat2(cos(angle), -sin(angle), sin(angle), cos(angle)); + coords = rotate * coords; + + // Transform the coordinates back. + coords_geo = vec3(coords / size_geo.xy + vec2(0.5, 1.0), 1.0); + + // Sample the window texture. + vec3 coords_tex = niri_geo_to_tex * coords_geo; + vec4 color = texture2D(niri_tex, coords_tex.st); + + // Multiply by alpha to fade out. + return color * (1.0 - niri_clamped_progress); +} + // This is the function that you must define. vec4 close_color(vec3 coords_geo, vec3 size_geo) { // You can pick one of the example functions or write your own. - return solid_gradient(coords_geo, size_geo); + return rotate_and_fall_down(coords_geo, size_geo); } |