diff options
Diffstat (limited to 'src/controls/Shaders/+glslcore/glow.frag')
-rw-r--r-- | src/controls/Shaders/+glslcore/glow.frag | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/src/controls/Shaders/+glslcore/glow.frag b/src/controls/Shaders/+glslcore/glow.frag new file mode 100644 index 00000000..e1b6b07f --- /dev/null +++ b/src/controls/Shaders/+glslcore/glow.frag @@ -0,0 +1,33 @@ +#version 150 + +uniform sampler2D source1; +uniform sampler2D source2; +uniform sampler2D source3; +uniform sampler2D source4; +uniform sampler2D source5; +uniform float weight1; +uniform float weight2; +uniform float weight3; +uniform float weight4; +uniform float weight5; +uniform vec4 color; +uniform float spread; +uniform float qt_Opacity; + +in vec2 qt_TexCoord0; + +out vec4 fragColor; + +float linearstep(float e0, float e1, float x) { + return clamp((x - e0) / (e1 - e0), 0.0, 1.0); +} + +void main() { + vec4 sourceColor = texture(source1, qt_TexCoord0) * weight1; + sourceColor += texture(source2, qt_TexCoord0) * weight2; + sourceColor += texture(source3, qt_TexCoord0) * weight3; + sourceColor += texture(source4, qt_TexCoord0) * weight4; + sourceColor += texture(source5, qt_TexCoord0) * weight5; + sourceColor = mix(vec4(0), color, linearstep(0.0, spread, sourceColor.a)); + fragColor = sourceColor * qt_Opacity; +} |