geometry shaders, map poi icons

shaders/map.vert

@@ -1,4 +1,7 @@
 layout(location = 0) in vec3 v_vert;
+layout(location = 2) in vec2 v_coords;
+
+out vec2 g_coords;
 
 #include <common>
 
@@ -7,4 +10,5 @@ void main()
     vec4 clip_pos = projection * vec4(v_vert, 1.0f);
 
 	gl_Position = vec4(clip_pos.xz, 0.5, 1.0);
+	g_coords = v_coords;
 }

shaders/map_poi.frag

@@ -0,0 +1,14 @@
+in vec2 f_coords;
+
+layout(location = 0) out vec4 out_color;
+
+#texture (tex1, 0, sRGB_A)
+uniform sampler2D tex1;
+
+void main()
+{
+	vec2 texcoord = f_coords;
+	vec4 color = texture(tex1, texcoord);
+
+	out_color = color;
+}  

shaders/map_poi.geom

@@ -0,0 +1,30 @@
+layout (points) in;
+layout (triangle_strip, max_vertices = 4) out;
+
+in vec2 g_coords[];
+out vec2 f_coords;
+
+#include <common>
+
+void main() {
+	vec4 position = gl_in[0].gl_Position;
+	vec2 size = vec2(0.1) * scene_extra.xy;
+
+	gl_Position = position + vec4(-size.x, -size.y, 0.0, 0.0);
+	f_coords = vec2(g_coords[0].s, 0.0);
+	EmitVertex();
+
+	gl_Position = position + vec4( size.x, -size.y, 0.0, 0.0);
+	f_coords = vec2(g_coords[0].t, 0.0);
+	EmitVertex();
+
+	gl_Position = position + vec4(-size.x,  size.y, 0.0, 0.0);
+	f_coords = vec2(g_coords[0].s, 1.0);
+	EmitVertex();
+
+	gl_Position = position + vec4( size.x,  size.y, 0.0, 0.0);
+	f_coords = vec2(g_coords[0].t, 1.0);
+	EmitVertex();
+
+    EndPrimitive();
+}