From c7e10b0910473c99dbc139f514220b134093c9f0 Mon Sep 17 00:00:00 2001 From: dec05eba Date: Sat, 12 Jun 2021 18:39:32 +0200 Subject: Add show in shader instead of sf::Vertex --- shaders/rounded_rectangle.glsl | 13 ++++++++----- shaders/rounded_rectangle_mask.glsl | 6 +++--- 2 files changed, 11 insertions(+), 8 deletions(-) (limited to 'shaders') diff --git a/shaders/rounded_rectangle.glsl b/shaders/rounded_rectangle.glsl index 956e28e..8c379b7 100644 --- a/shaders/rounded_rectangle.glsl +++ b/shaders/rounded_rectangle.glsl @@ -5,18 +5,21 @@ uniform vec4 band_color; uniform vec2 resolution; float rounded_rect(vec2 coord, vec2 size, float r) { - return smoothstep(0.0, 2.0, length(max(abs(coord) - size, 0.0)) - r); + return length(max(abs(coord) - size+r, 0.0)) - r; } void main() { + vec2 shadow_offset = vec2(20.0, 20.0); vec2 uv = gl_TexCoord[0].xy * resolution; vec2 center = resolution * 0.5; - vec2 size = resolution * 0.5; + vec2 size = (resolution - shadow_offset * 2.0) * 0.5; - float a = clamp(rounded_rect(uv - center, size - radius, radius), 0.0, 1.0); + float rect_dist = rounded_rect(uv - center, size, radius); + float a = 1.0 - smoothstep(0.0, 2.0, rect_dist); // 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); - front_color.a *= (1.0 - a); - gl_FragColor = front_color; + float shadow_a = 1.0 - smoothstep(0.0, shadow_offset.x, rect_dist); + front_color.a *= a; + gl_FragColor = mix(front_color, vec4(0.0, 0.0, 0.0, 0.135), shadow_a - a); } \ No newline at end of file diff --git a/shaders/rounded_rectangle_mask.glsl b/shaders/rounded_rectangle_mask.glsl index a4546e3..8cbe0fc 100644 --- a/shaders/rounded_rectangle_mask.glsl +++ b/shaders/rounded_rectangle_mask.glsl @@ -3,7 +3,7 @@ uniform float radius; uniform vec2 resolution; float rounded_rect(vec2 coord, vec2 size, float r) { - return smoothstep(0.0, 2.0, length(max(abs(coord) - size, 0.0)) - r); + return length(max(abs(coord) - size+r, 0.0)) - r; } void main() { @@ -12,7 +12,7 @@ void main() { vec2 size = resolution * 0.5; vec4 texture_color = texture2D(texture, gl_TexCoord[0].xy); - float a = clamp(rounded_rect(uv - center, size - radius, radius), 0.0, 1.0); - texture_color.a *= (1.0 - a); + float a = 1.0 - smoothstep(0.0, 2.0, rounded_rect(uv - center, size, radius)); + texture_color.a *= a; gl_FragColor = texture_color; } \ No newline at end of file -- cgit v1.2.3