#version 440 layout(location = 0) in vec2 qt_TexCoord0; layout(location = 0) out vec4 fragColor; layout(std140, binding = 0) uniform buf { mat4 qt_Matrix; float qt_Opacity; } ubuf; layout(binding = 1) uniform sampler2D source; layout(binding = 2) uniform sampler2D maskSource; void main() { fragColor = texture(source, qt_TexCoord0.st) * (texture(maskSource, qt_TexCoord0.st).a) * ubuf.qt_Opacity; }