# New rendering capabilities

**URL:** https://forum.castle-engine.io/t/new-rendering-capabilities/45
**Category:** News
**Created:** [February 19, 2019, 12:17pm UTC](https://forum.castle-engine.io/t/new-rendering-capabilities/45 "2019-02-19T12:17:09Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![michalis](https://forum.castle-engine.io/user_avatar/forum.castle-engine.io/michalis/32/3_2.png) [@michalis](https://forum.castle-engine.io/u/michalis)
#### Post date: [February 19, 2019, 12:17pm UTC](https://forum.castle-engine.io/t/new-rendering-capabilities/45/1 "2019-02-19T12:17:10Z")

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| [![Screenshot of selection at 2019-02-17 22:01:23](https://forum.castle-engine.io/uploads/default/original/1X/1ba87a0dd49e844d7a1f11a4b2ce85cc30722a55.png)](https://castle-engine.io/wp/wp-content/uploads/2019/02/Screenshot-of-selection-at-2019-02-17-220123.png "Screenshot of selection at 2019-02-17 22:01:23") |
| [![Screenshot of selection at 2019-02-17 22:01:41](https://forum.castle-engine.io/uploads/default/original/1X/f001817263bda287b7ca88986ef35b338106b4b9.png)](https://castle-engine.io/wp/wp-content/uploads/2019/02/Screenshot-of-selection-at-2019-02-17-220141.png "Screenshot of selection at 2019-02-17 22:01:41") |
| [![alpha_channel_override_demo](https://forum.castle-engine.io/uploads/default/original/1X/c68fdd3b5d090804d1dddc4b35fc68a4d3490df5.png)](https://castle-engine.io/wp/wp-content/uploads/2019/02/alpha_channel_override_demo.png "alpha\_channel\_override\_demo") |

- New [Appearance.alphaChannel](https://castle-engine.io/x3d_implementation_shape_extensions.php#section_ext_alpha_channel) field (`TAppearanceNode.AlphaChannel` in Pascal) determines alpha channel treatment when rendering a shape with given appearance. We can use _alpha testing_, _alpha blending_, or ignore the alpha channel (render as opaque).

- New utility methods [TCastle2DSceneManager.PositionTo2DWorld](https://castle-engine.io/apidoc-unstable/html/Castle2DSceneManager.TCastle2DSceneManager.html#PositionTo2DWorld) and [TCastleSceneManager.PositionToWorldPlane](https://castle-engine.io/apidoc-unstable/html/CastleSceneManager.TCastleSceneManager.html#PositionToWorldPlane) have been added, to easily convert mouse/touch position into a position inside 3D/2D game world.

- glTF texture can be converted to a `MovieTexture` . If your texture URL is like .avi or .mpg, we will automatically load it as `MovieTexture` in X3D, and it will actually play in a loop (if you have ffmpeg installed).