nuclear@10: uniform float zscale;
nuclear@10: 
nuclear@4: void main()
nuclear@4: {
nuclear@8: 	mat4 mvmat = gl_ModelViewMatrix;
nuclear@8: 	mvmat[0][0] = mvmat[1][1] = mvmat[2][2] = 1.0;
nuclear@8: 	mvmat[0][1] = mvmat[0][2] = mvmat[1][2] = mvmat[1][0] = mvmat[2][0] = mvmat[2][1] = 0.0;
nuclear@8: 
nuclear@8: 	vec4 vertex = gl_Vertex;
nuclear@8: 	gl_Position = gl_ProjectionMatrix * mvmat * vertex;
nuclear@10: 	gl_TexCoord[0].xyz = gl_NormalMatrix * (vertex.xyz * vec3(1.0, 1.0, -1.0) * 1.732051) * vec3(1.0, 1.0, zscale) * 0.5 + 0.5;
nuclear@4: }