Python: Raycast happens on the other side of a mesh #45286

New Issue

paul geraskin · 2015-07-03T10:03:36+02:00

paul geraskin commented

2015-07-03 10:03:36 +02:00

System Information
Linux 64

Blender Version
2.74/2.75

Short description of error
I found that raycast happens on the other side of a mesh. But it should not be. It makes a big problem to make my python tools. I guess this is a bug.
This happens mostly in Ortho view but it also happens in Perspective too.

Here is my video test: http://youtu.be/5B1FKccc1Hw
Here is my screenshot explanation:

And here is the blend file to test: test_clone3.blend
I just modified a bit the template in Templates->Python->OperatorModalViewRaycast.

I hope this is fixable as this is very important for my custom python tools to make correct raycast on a surface.

Exact steps for others to reproduce the error

Open My blend file
Apply Subsurf Modifier at the Sphere so that raycast to be fast
Run the script on the right panel
Search "Raycast" in the Space menu
Draw with the Left Mouse and stop with the Right Mouse

**System Information** Linux 64 **Blender Version** 2.74/2.75 **Short description of error** I found that raycast happens on the other side of a mesh. But it should not be. It makes a big problem to make my python tools. I guess this is a bug. This happens mostly in Ortho view but it also happens in Perspective too. Here is my video test: http://youtu.be/5B1FKccc1Hw Here is my screenshot explanation: ![cache0.png](https://archive.blender.org/developer/F199978/cache0.png) And here is the blend file to test: [test_clone3.blend](https://archive.blender.org/developer/F199983/test_clone3.blend) I just modified a bit the template in Templates->Python->OperatorModalViewRaycast. I hope this is fixable as this is very important for my custom python tools to make correct raycast on a surface. **Exact steps for others to reproduce the error** - Open My blend file - Apply Subsurf Modifier at the Sphere so that raycast to be fast - Run the script on the right panel - Search "Raycast" in the Space menu - Draw with the Left Mouse and stop with the Right Mouse

paul geraskin commented

2015-07-03 10:03:36 +02:00

Changed status to: 'Open'