Orthographic projection using THREEJS

[jespa007]

Hi,

I ask here because I didn't know where put my question or my doubt on other place. I'm using maplibre-gl 4.7.1with threejs r1.35.

My question is about how maplibre-gl performs projection, because in the examples I found, to render models in the map it needs to multiply a mercator transform that, inside this transform, includes a perspective projection and this transform it has to be applied in the projectionMatrix of the camera as it shows in the code below,

this.camera3d.projectionMatrix = new Matrix4().multiplyMatrices(
		new Matrix4().fromArray(this.map.transform.mercatorMatrix)
		,this.worldTransform	
);

So even though this.camera3d be a Ortographic camera, when the transform is assigned to the projectionMatrix it overrides the Ortographic configuration because mercator transform comes with a perspective projection.

I ask this due we are rendering the map always from the top (pitch= 0, neither perspective or isometric) and we would like to have ortographic projection.

My question or doubt is trivial : I would like to know if maplibre-gl supports, or there's a method to allow ortographic projection.

In case is not possible, I'm thinking about to put an image and render the model using render to texture.

[HarelM]

Mercator projection, and as of 5.0 also vertical perspective is supported, but others are not, as far as I know.