CODEWITHSUNDEEP
three.js
Quazi
Quazi

Reputation: 129

lightMap / specularMap / shading with meshBasicMaterial

I'm currently working on something along the lines of a plugin for another program to add 3D capability to it, so I'm trying to put all the functionality i can from three.js into it, with the added goal of this being a good way to learn all the functionality of three.js firsthand.

I'm running into an issue now as i implement textures and materials that with mesh basic material, setting some things which the documentation on the main threejs.org site shows are features, doesn't actually do anything.

when i set a texture for either specularmap or lightmap nothing is actually showing up. Im pretty sure its not a mistake im making because setting the texture of the map works, but trying to set this same texture for the specularMap or lightMap is doing nothing. Does a regular texture work for these, or do i have to do something different?

I'd also like to know what the shading property does for mesh basic, because as far as i can see setting it to smoothshading/flatshading/noshading is doing nothing aswell.

Upvotes: 0

Views: 1170

Answers (1)

WestLangley
WestLangley

Reputation: 104833

MeshBasicMaterial does not respond to lights. Change your material to MeshLamberMaterial or MeshPhongMaterial, for example.

For MeshBasicMaterial and MeshLambertMaterial, the specularMap is used only to modulate the reflection when an environment map is used.

For any material, lightmaps require a second set of UVs. geometry.faceVertexUvs[ 0 ] contains the usual set of UVs; for a lightmap, you need to add geometry.faceVertexUvs[ 1 ], a second set of UVs.

For MeshBasicMaterial, the shading property only applies when an environment map is used. SmoothShading will yield smooth reflections; FlatShading will yield faceted reflections.

three.js r.66

Upvotes: 2

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