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final tweaks in the comments;

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lgtst 2022-09-21 14:03:49 +01:00
parent 25aef3d500
commit b89b33e294
1 changed files with 7 additions and 5 deletions
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12
src/visual/GratingStim.js
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@ -743,13 +743,15 @@ export class GratingStim extends VisualStim
}
else
{
// For some reason setting PIXI.Mesh as .mask doesn't do anything,
// rendering mask to texture for further use.
const maskMesh = this._getPixiMeshFromPredefinedShaders(this._mask);
// Since mesh is centered around [0, 0] (has vertices going around it),
// offsetting maskMesh position to properly cover render target texture.
// Since maskMesh is centered around (0, 0) (has vertices going around it),
// offsetting maskMesh position to properly cover render target texture,
// which created with top-left corner at (0, 0).
maskMesh.position.set(this._size_px[0] * 0.5, this._size_px[1] * 0.5);
// For some reason setting PIXI.Mesh as .mask doesn't do anything,
// rendering mask to texture for further use.
const rt = PIXI.RenderTexture.create({
width: this._size_px[0],
height: this._size_px[1],
@ -762,7 +764,7 @@ export class GratingStim extends VisualStim
this._pixi.mask = maskSprite;
this._pixi.addChild(maskSprite);
}
// Since mesh is centered around [0, 0], setting mask's anchor to center to properly cover target image.
// Since grating mesh is centered around (0, 0), setting mask's anchor to center to properly cover target image.
this._pixi.mask.anchor.set(0.5);
}