gtk2/gsk/resources/vulkan/border.frag.glsl
2017-01-11 18:33:09 +01:00

24 lines
752 B
GLSL

#version 420 core
#include "rounded-rect.glsl"
layout(location = 0) in vec2 inPos;
layout(location = 1) in flat vec4 inColor;
layout(location = 2) in flat vec4 inRect;
layout(location = 3) in flat vec4 inCornerWidths;
layout(location = 4) in flat vec4 inCornerHeights;
layout(location = 5) in flat vec4 inBorderWidths;
layout(location = 0) out vec4 color;
void main()
{
RoundedRect routside = RoundedRect (vec4(inRect.xy, inRect.xy + inRect.zw), inCornerWidths, inCornerHeights);
RoundedRect rinside = rounded_rect_shrink (routside, inBorderWidths);
float alpha = clamp (rounded_rect_coverage (routside, inPos) -
rounded_rect_coverage (rinside, inPos),
0.0, 1.0);
color = inColor * alpha;
}