Sprite pick area doesn't reflect sprite angle

schollin · July 13, 2021, 9:40am

https://playground.babylonjs.com/#YCY2IL#382

After rotation, the sprite can be picked out of bounds on two sides (top right and bottom left). It cannot be picked in any of the corners.

sebavan · July 13, 2021, 2:15pm

@Evgeni_Popov would you mind having a look into it ? or I ll do ASAP

Evgeni_Popov · July 13, 2021, 3:53pm

It seems the sprite angle is not taken into account when computing the ray / sprite intersection:

github.com

BabylonJS/Babylon.js/blob/master/src/Sprites/spriteManager.ts#L426-L447

    
      
          Vector3.TransformCoordinatesToRef(sprite.position, cameraView, cameraSpacePosition);

          

          min.copyFromFloats(cameraSpacePosition.x - sprite.width / 2, cameraSpacePosition.y - sprite.height / 2, cameraSpacePosition.z);

          max.copyFromFloats(cameraSpacePosition.x + sprite.width / 2, cameraSpacePosition.y + sprite.height / 2, cameraSpacePosition.z);

          

          if (ray.intersectsBoxMinMax(min, max)) {

              var currentDistance = Vector3.Distance(cameraSpacePosition, ray.origin);

          

              if (distance > currentDistance) {

          

                  if (!this._checkTextureAlpha(sprite, ray, currentDistance, min, max)) {

                      continue;

                  }

          

                  distance = currentDistance;

                  currentSprite = sprite;

          

                  if (fastCheck) {

                      break;

                  }

This file has been truncated. show original

sebavan · July 13, 2021, 3:56pm

Yup thanks a ton, @Deltakosh might have a crazy idea to do it as usual

Deltakosh · July 13, 2021, 5:30pm

ok it will be fixed by next nightly

sebavan · July 13, 2021, 6:16pm

I love when the daddy himself is fixing it !!!

Deltakosh · July 13, 2021, 6:28pm

LOL!

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Sprite pick area doesn't reflect sprite angle

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