ImmediateModeShapeDrawer Sample Not Drawing

michael ferron

2 days ago
updated 2 days ago

Hello!

Attempting to try out Shapes and I am unable to get ImmediateMode working correctly. Here are my steps:

1. Created a fresh Unity "Universal 2D" project
2. Installed Shapes 4.5.1
3. Create empty GameObject and attach ImmediateModeShapeDrawer script from example https://acegikmo.com/shapes/docs/#immediate-mode

No lines appear in the scene or game view, and no console errors appear. If I add a Debug.Log into the body of the `DrawShapes` method, it is never logged to the console. The GameObject is active.

If I modify the example script to be a MonoBehavior and use `OnRenderObject`, I can see the lines in the Scene View, but not Game View when running.

[ExecuteAlways]
public class ShapesDebug : MonoBehaviour
{
    void OnRenderObject()
    {
        // set up static parameters. these are used for all following Draw.Line calls
        Draw.LineGeometry = LineGeometry.Volumetric3D;
        Draw.ThicknessSpace = ThicknessSpace.Pixels;
        Draw.Thickness = 4; // 4px wide

        // set static parameter to draw in the local space of this object
        Draw.Matrix = transform.localToWorldMatrix;

        // draw lines
        Draw.Line(Vector3.zero, Vector3.right, Color.red);
        Draw.Line(Vector3.zero, Vector3.up, Color.green);
        Draw.Line(Vector3.zero, Vector3.forward, Color.blue);

    }
}

Hopefully I'm just missing something simple here. Thanks in advance!

Reporting a bug? please specify Unity version:

6000.2.13f1

Reporting a bug? please specify Shapes version:

4.5.1

Reporting a bug? please specify Render Pipeline:

Built-in render pipeline

Replies 2

Newest first
Newest first Oldest first

2 days ago

Thank you for the quick reply!

Apologies for not being clearer in my post -- the code snippet I shared is after having modified the example. That code snippet displays the lines in scene view, but not in the game view.

Here is the example script I am attaching to my gameobject, taken from the example, that does not render:


using UnityEngine;
using Shapes;

[ExecuteAlways]
public class MyScript : ImmediateModeShapeDrawer
{

    public override void DrawShapes(Camera cam)
    {

        using (Draw.Command(cam))
        {

            // set up static parameters. these are used for all following Draw.Line calls
            Draw.LineGeometry = LineGeometry.Volumetric3D;
            Draw.ThicknessSpace = ThicknessSpace.Pixels;
            Draw.Thickness = 4; // 4px wide

            // set static parameter to draw in the local space of this object
            Draw.Matrix = transform.localToWorldMatrix;

            // draw lines
            Draw.Line(Vector3.zero, Vector3.right, Color.red);
            Draw.Line(Vector3.zero, Vector3.up, Color.green);
            Draw.Line(Vector3.zero, Vector3.forward, Color.blue);
        }

    }

}

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Freya Holmér creator

You need to inherit from ImmediateModeShapeDrawer in your script, as the example does!