diff options
Diffstat (limited to 'src/fshader_post.glsl')
| -rw-r--r-- | src/fshader_post.glsl | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/src/fshader_post.glsl b/src/fshader_post.glsl index c44371a..41b442f 100644 --- a/src/fshader_post.glsl +++ b/src/fshader_post.glsl @@ -3,14 +3,22 @@ uniform sampler2D u_menu_texture; uniform float u_paused; uniform float u_aspect_ratio; uniform float u_menu_scale; +uniform vec2 u_highlight_button; IN vec2 uv; void main() { - vec4 color = texture(u_main_texture, uv) * (1.0 - 0.5 * u_paused); + // amount to darken screen by when paused + float pause_darkening = 0.75; + vec4 color = texture(u_main_texture, uv) * (1.0 - pause_darkening * u_paused); vec2 menu_uv = (uv * 2.0 - 1.0) * vec2(1.0, -1.0); menu_uv *= 1.0 / u_menu_scale; menu_uv = menu_uv * vec2(u_aspect_ratio, 1.0); menu_uv = 0.5 * menu_uv + 0.5; - color = mix(color, vec4(1.0), u_paused * texture(u_menu_texture, menu_uv).x); + float menu_pixel = u_paused * texture(u_menu_texture, menu_uv).x; + vec4 menu_color = vec4(1.0); + if (uv.y >= u_highlight_button.x && uv.y <= u_highlight_button.y) { + menu_color = vec4(1.0, 0.5, 0.0, 1.0); // highlight button + } + color = mix(color, menu_color, menu_pixel); gl_FragColor = clamp(color, 0.0, 1.0); } |