lembert.dome

I am beginning to explore light in the GL world more and more, and am becoming increasingly confused by the results.

If I throw some directional light on a gl.mesh, the results are radically different depending on if I draw a shape using tri_grid or the same shape using quads.

In this example patch (another variation of the same patch I have used for various other examples) I positioned the jit.gl.light to get some shading on the facets of the shape.

If I want a uniform reaction to lighting in a gl.world, is there something basic I am missing?

In this example patch (another variation of the same patch I have used for various other examples) I positioned the jit.gl.light to get some shading on the facets of the shape. 

If I want a uniform reaction to lighting in a gl.world, is there something basic I am missing?


gl-light-and-draw_mode

to render lighting effects properly with gl.mesh, you need to provide normals to your mesh.

they can be generated automatically with the @autonormals attribute set to 1.

i'm not sure if autonormals work with non-triangular meshes though.

to render lighting effects properly with gl.mesh, you need to provide normals to your mesh.
they can be generated automatically with the @autonormals attribute set to 1.

i'm not sure if autonormals work with non-triangular meshes though.


gl.light and draw_mode