gtk/gsk/vulkan/resources/outset-shadow.vert
Matthias Clasen 900a4e4d31 gsk: Move shader resources
Move the resources of each renderer to its subdirectory.
We've previously done that for the ngl renderer, but it
is better to be consistent and do it for all the renderers.
2021-04-03 08:24:58 -04:00

52 lines
1.6 KiB
GLSL

#version 420 core
#include "clip.vert.glsl"
layout(location = 0) in vec4 inOutline;
layout(location = 1) in vec4 inOutlineCornerWidths;
layout(location = 2) in vec4 inOutlineCornerHeights;
layout(location = 3) in vec4 inColor;
layout(location = 4) in vec2 inOffset;
layout(location = 5) in float inSpread;
layout(location = 6) in float inBlurRadius;
layout(location = 0) out vec2 outPos;
layout(location = 1) out flat vec4 outOutline;
layout(location = 2) out flat vec4 outOutlineCornerWidths;
layout(location = 3) out flat vec4 outOutlineCornerHeights;
layout(location = 4) out flat vec4 outColor;
layout(location = 5) out flat vec2 outOffset;
layout(location = 6) out flat float outSpread;
layout(location = 7) out flat float outBlurRadius;
vec2 offsets[6] = { vec2(0.0, 0.0),
vec2(1.0, 0.0),
vec2(0.0, 1.0),
vec2(0.0, 1.0),
vec2(1.0, 0.0),
vec2(1.0, 1.0) };
float radius_pixels(float radius) {
return radius * (3.0 * sqrt(2 * 3.141592653589793) / 4) * 1.5;
}
void main() {
vec4 rect = inOutline;
float spread = inSpread + radius_pixels(inBlurRadius);
rect += vec4(inOffset - spread, vec2(2 * spread));
clip (inOutline);
vec2 pos = rect.xy + rect.zw * offsets[gl_VertexIndex];
gl_Position = push.mvp * vec4 (pos, 0.0, 1.0);
outPos = pos;
outOutline = inOutline;
outOutlineCornerWidths = inOutlineCornerWidths;
outOutlineCornerHeights = inOutlineCornerHeights;
outColor = inColor;
outOffset = inOffset;
outSpread = inSpread;
outBlurRadius = inBlurRadius;
}