Go nuts with Qt

[ipdf/code.git] / src / shaders / rect_vert.glsl

diff --git a/src/shaders/rect_vert.glsl b/src/shaders/rect_vert.glsl
index cc15e56..bdfd3ea 100644 (file)
--- a/src/shaders/rect_vert.glsl
+++ b/src/shaders/rect_vert.glsl
@@ -8,10 +8,17 @@ layout(std140, binding=0) uniform ViewBounds
        float bounds_y;
        float bounds_w;
        float bounds_h;
+       float pixel_x;
+       float pixel_y;
+       float pixel_w;
+       float pixel_h;
 };
 
 layout(location = 0) in vec2 position;
 
+out int objectid;
+out vec2 pixsize;
+
 void main()
 {
        vec2 transformed_position;
@@ -22,4 +29,6 @@ void main()
        gl_Position.y = 1 - (transformed_position.y*2);
        gl_Position.z = 0.0;
        gl_Position.w = 1.0;
+       pixsize = vec2(pixel_w/bounds_w, 100*pixel_h/bounds_h);
+       objectid = gl_VertexID / 2;
 }