Depth Alpha Cutoff

MichelVictor

I'm using Write to Depth, but when I am using a dark environment, I can see a blue line around my spine because the color of the Alpha Cutoff are blue, can I change that color to black? (The Image attached are with 0.0 Alpha Cutoff, just to see the color)
If I set the Alpha Cutoff to high, it start removing some shadows that I don't want to remove, but if I can set it to black I believe I can solve this problem.

Harald

Always be sure to enable bleed when exporting textures as straight alpha.
Proper export and import settings for straight alpha and premultiplied alpha are described here:
spine-unity Runtime Documentation: Advanced Premultiplied vs Straight Alpha Import

MichelVictor

I changed the export option but it didn't work. But I understand what is happening, the cutoff are cutting the image and the line I'm seeing in fact is the the color background from the camera.

What I am trying to achieve is put some image inside a 3D plane like the tires in the sand:

If there is any other way I'll be glad to know.

Harald

MichelVictor đã viết
I changed the export option but it didn't work. But I understand what is happening, the cutoff are cutting the image and the line I'm seeing in fact is the the color background from the camera.

This is a typical problem of alpha blending combined with ZWrite enabled and front-to-back render order. In order for proper blending to happen, you have to draw objects in back-to-front order. This is determined by the render queue, which is rendering opaque objects before transparent ones. So I assume that you are using one of the Spine/Sprite shaders and have set your Blend Mode to Opaque, please change that to Pre-Multiplied Alpha or Standard Alpha accordingly.