first commit

shader/FragCoord.frag

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+#version 450 core
+
+layout(binding=1) uniform WorldMatrix     // hgl/math/Math.h
+{
+    mat4 ortho;
+
+    mat4 projection;
+    mat4 inverse_projection;
+
+    mat4 modelview;
+    mat4 inverse_modelview;
+
+    mat4 mvp;
+    mat4 inverse_mvp;
+
+    vec4 view_pos;
+    vec2 resolution;
+}fragment_world;
+
+layout(location = 0) out vec4 FragColor;
+
+void main()
+{
+    FragColor=vec4(gl_FragCoord.xy/fragment_world.resolution,0,1);
+}