diff --git a/framework/opengl_renderer/src/mm/opengl/res/shaders_builtin.cpp b/framework/opengl_renderer/src/mm/opengl/res/shaders_builtin.cpp
index ed3e011..c9abe15 100644
--- a/framework/opengl_renderer/src/mm/opengl/res/shaders_builtin.cpp
+++ b/framework/opengl_renderer/src/mm/opengl/res/shaders_builtin.cpp
@@ -142,6 +142,16 @@ float hash13(vec3 p3)
 	return fract((p3.x + p3.y) * p3.z);
 }
 
+//----------------------------------------------------------------------------------------
+// TODO: test properly
+// 1 out, 4 in...
+float hash14(vec4 p4)
+{
+	p4  = fract(p4 * .1031);
+	p4 += dot(p4, p4.zywx + 31.32);
+	return fract((p4.x + p4.y + p4.w) * p4.z);
+}
+
 //----------------------------------------------------------------------------------------
 // 2 out, 1 in...
 vec2 hash21(float p)
@@ -169,6 +179,16 @@ vec2 hash23(vec3 p3)
 	return fract((p3.xx+p3.yz)*p3.zy);
 }
 
+//----------------------------------------------------------------------------------------
+// TODO: test properly
+// 2 out, 4 in...
+vec2 hash24(vec4 p4)
+{
+	p4 = fract(p4 * vec4(.1031, .1030, .0973, .1337));
+	p4 += dot(p4, p4.ywzx+33.33);
+	return fract((p4.wx+p4.yz)*p4.zy);
+}
+
 //----------------------------------------------------------------------------------------
 // 3 out, 1 in...
 vec3 hash31(float p)