diff options
Diffstat (limited to 'shaders/rounded_rectangle.glsl')
| -rw-r--r-- | shaders/rounded_rectangle.glsl | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/shaders/rounded_rectangle.glsl b/shaders/rounded_rectangle.glsl index 7c797f2..ec3a5c1 100644 --- a/shaders/rounded_rectangle.glsl +++ b/shaders/rounded_rectangle.glsl @@ -15,11 +15,11 @@ void main() { vec2 size = (resolution - shadow_offset * 2.0) * 0.5; float rect_dist = rounded_rect(uv - center, size, radius); - float a = 1.0 - smoothstep(0.0, 2.0, rect_dist); + float a = clamp(1.0 - smoothstep(0.0, 2.0, rect_dist), 0.0, 1.0); // same as: if(uv.x >= band_pos.x && uv.x <= band_pos.x + band_size.x && uv.y >= band_pos.y && uv.y <= band_pos.y + band_size.y) vec2 band_blend = step(band_pos, uv) - step(band_pos + band_size, uv); vec4 front_color = mix(gl_Color, band_color, band_blend.x*band_blend.y); - float shadow_a = 1.0 - smoothstep(0.0, shadow_offset.x, rect_dist); + float shadow_a = clamp(1.0 - smoothstep(0.0, shadow_offset.x, rect_dist), 0.0, 1.0); front_color.a *= a; gl_FragColor = mix(front_color, vec4(0.0, 0.0, 0.0, 0.14), clamp(shadow_a - a, 0.0, 1.0)); }
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