[RELEASE] u22-v03

This version is submitted to U22 breau.

core/loshader/cinescope.vshader

@@ -0,0 +1,22 @@
+layout(std140) uniform param {
+  vec4  color;
+  float size;
+} p;
+
+const vec2[6] rect_ = vec2[](
+    vec2(-1., 1.),
+    vec2(-1., 0.),
+    vec2( 1., 0.),
+    vec2(-1., 1.),
+    vec2( 1., 0.),
+    vec2( 1., 1.)
+);
+
+void main(void) {
+  int id = gl_VertexID < 6? gl_VertexID: gl_VertexID-6;
+
+  vec2 p = rect_[id]*vec2(1., p.size) + vec2(0., 1.-p.size);
+  p.y *= (id == gl_VertexID? 1.: -1.);
+
+  gl_Position = vec4(p, 0., 1.);
+}