diff options
Diffstat (limited to 'src/location/quickmapitems/shaders/polygon.vert')
-rw-r--r-- | src/location/quickmapitems/shaders/polygon.vert | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/location/quickmapitems/shaders/polygon.vert b/src/location/quickmapitems/shaders/polygon.vert new file mode 100644 index 00000000..06dab03e --- /dev/null +++ b/src/location/quickmapitems/shaders/polygon.vert @@ -0,0 +1,20 @@ +#version 440 + +layout(location = 0) in highp vec4 vertex; + +layout(std140, binding = 0) uniform buf { + mat4 qt_Matrix; + mat4 mapProjection; + vec4 center; + vec4 center_lowpart; + float wrapOffset; + vec4 color; +}; + +vec4 wrapped(in vec4 v) { return vec4(v.x + wrapOffset, v.y, 0.0, 1.0); } + +void main() { + vec4 vtx = wrapped(vertex) - center; + vtx = vtx - center_lowpart; + gl_Position = qt_Matrix * mapProjection * vtx; +} |