chore: update shader

Author: JeremyMeissner

FreeFrame/Components/Shapes/SVGPath.cs

@@ -31,7 +31,7 @@ public class SVGPath : Shape
 
         public List<DrawAttribute> DrawAttributes { get => _drawAttributes; set => _drawAttributes = value; }
 
-        public SVGPath(XmlReader reader) //: this()
+        public SVGPath(XmlReader reader)
         {
             IsResizeable = false;
             IsCornerRadiusChangeable = false;

FreeFrame/Renderer.cs

@@ -73,6 +73,7 @@ public void Draw(Vector2i clientSize, Color4 color, Matrix4 transformation)
         public void Draw(Vector2i clientSize, Color4 color, Shape shape)
         {
             _shader.Use();
+
             // Applied projection matrix
             int uModelToNDC = _shader.GetUniformLocation("u_Model_To_NDC"); // TODO: Don't need to apply projection matrix at each frame I think
             Matrix4 matrix = Matrix4.CreateOrthographicOffCenter(0, clientSize.X, clientSize.Y, 0, -1.0f, 1.0f);
@@ -104,7 +105,6 @@ public void Draw(Vector2i clientSize, Color4 color, Shape shape)
             GL.Enable(EnableCap.Blend);
             GL.DrawElements(_primitiveType, _indexCount, DrawElementsType.UnsignedInt, 0);
             GL.Disable(EnableCap.Blend);
-
         }
         public void ImplementObjects(float[] vertices, uint[] indexes)
         {

FreeFrame/Shaders/shader.vert

@@ -14,13 +14,15 @@ void main()
 {
 	vec4 finalPosition = vec4(position,1.0, 1.0);
 
-	finalPosition -= vec4(u_Position.x + u_Size.x/2.0, u_Position.y + u_Size.y/2.0, 0.0, 0.0);
+	vec4 origin = vec4(u_Position.x + u_Size.x/2.0, u_Position.y + u_Size.y/2.0, 0.0, 0.0);
+
+	finalPosition -= origin;
 
 	finalPosition = finalPosition * u_Transformation;
 
-	finalPosition += vec4(u_Position.x + u_Size.x/2.0, u_Position.y + u_Size.y/2.0, 0.0, 0.0);
+	finalPosition += origin;
 
 	finalPosition = u_Model_To_NDC * finalPosition;
 
-	gl_Position = finalPosition; // * u_View * u_Projection);
+	gl_Position = finalPosition;
 }