CODEWITHSUNDEEP
three.jsblendergltf
aoedipus
aoedipus

Reputation: 51

GLTF Exporter Lighting Issue

Just swapped from the older GLTF Blender exporter to the newer import/export version. Upon doing so, my meshes got significantly darker, and I can't figure out why.

mesh lighting sample :

enter image description here

The left is the older Blender > GLTF exporter, and the right is the newer one. Gamma is set to true, and I've played around with various options within Blender, as well as three.js lighting intensity, etc. (jacking the intensity up to make it look reasonable makes the shadows disappear). It renders the same in Mccurdy's GLTF viewer, and none of the lighting sliders get anywhere close to the lighting from the prior GLTF exporter. I need to use the new version for animation and morph playback purposes. Thanks as always for any suggestions.

Upvotes: 0

Views: 1066

Answers (1)

aoedipus
aoedipus

Reputation: 51

Just in case it's helpful to anyone else, apparently the newer Blender > GLTF exporter defaulted to THREE.MeshStandardMaterial. I swapped to THREE.MeshLambertMaterial and the problem was solved.

            const oldMat = child.material;
            const newMat = new THREE.MeshLambertMaterial({
                color: oldMat.color, 
                map: oldMat.map
            });
            child.material = newMat;

Upvotes: 1

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