diff options
Diffstat (limited to 'src/effects/shaders_ng/rectangularglow.frag')
-rw-r--r-- | src/effects/shaders_ng/rectangularglow.frag | 30 |
1 files changed, 0 insertions, 30 deletions
diff --git a/src/effects/shaders_ng/rectangularglow.frag b/src/effects/shaders_ng/rectangularglow.frag deleted file mode 100644 index cf20b93..0000000 --- a/src/effects/shaders_ng/rectangularglow.frag +++ /dev/null @@ -1,30 +0,0 @@ -#version 440 - -layout(location = 0) in vec2 qt_TexCoord0; -layout(location = 0) out vec4 fragColor; - -layout(std140, binding = 0) uniform buf { - // qt_Matrix and qt_Opacity must always be both present - // if the built-in vertex shader is used. - mat4 qt_Matrix; - float qt_Opacity; - vec4 color; - float relativeSizeX; - float relativeSizeY; - float spread; -}; - -float linearstep(float e0, float e1, float x) -{ - return clamp((x - e0) / (e1 - e0), 0.0, 1.0); -} - -void main() -{ - float alpha = - smoothstep(0.0, relativeSizeX, 0.5 - abs(0.5 - qt_TexCoord0.x)) * - smoothstep(0.0, relativeSizeY, 0.5 - abs(0.5 - qt_TexCoord0.y)); - - float spreadMultiplier = linearstep(spread, 1.0 - spread, alpha); - fragColor = color * qt_Opacity * spreadMultiplier * spreadMultiplier; -} |