topic Re: twoSided material in 3ds Max Programming Forum

twoSided material

Anonymous — Sun, 19 Jun 2016 19:06:22 GMT

i made face and add material to it and need to made material twosided (front and back take same material)

fn drawRoof vertices =
(
obj = convertToPoly (mesh vertices:vertices faces:#())
polyOp.createPolygon obj #(1,2,3,4)
img_path = "C:\Users\Abdo\Desktop/roof.jpg"
mat=standardmaterial();
mat.diffuseMap = bitmapTexture filename:(img_path)
showtexturemap mat true

/*
uvw to adjust texture mapping
*/
polyop.applyUVWMap obj \
#face \

mat.twosided=on
obj.material=mat

obj.extrudeFaces .02

)

but result as in image
how can i solve this

Re: twoSided material

Swordslayer — Sun, 19 Jun 2016 20:42:28 GMT

The order of the verts matters, if you make it clockwise, it will be flipped (and dark in viewport), so keep that in mind - basically when one polygon has edges 1->2, 2->3 etc., the neighbor face of the 1->2 edge will have the edge reversed, i.e. it will be 2->1.

Re: twoSided material

Swordslayer — Sun, 19 Jun 2016 20:43:17 GMT

The order of the verts matters, if you make it clockwise, it will be flipped (and dark in viewport), so keep that in mind - basically when one polygon has edges 1-2, 2-3 etc., the neighbor face of the 1-2 edge will have the edge reversed, i.e. it will be 2-1.

Re: twoSided material

Anonymous — Sun, 19 Jun 2016 21:55:46 GMT

Are you mean ine face darm and one with material
My question need two gave same narerial

Re: twoSided material

Swordslayer — Mon, 20 Jun 2016 06:59:03 GMT

Just saying why does it appear black in the viewport and how to fix that. When the face is flipped, it will give you all sorts of problems when rendering and even more so if you want to manually adjust the geometry as it results in unwelded verts and broken mesh.

Re: twoSided material

Anonymous — Tue, 21 Jun 2016 18:58:57 GMT

i solved it by copying face but changing it's normal as texture drawn in direction of norma