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uniform mat4 ProjectionMatrix;
uniform mat4 ModelViewMatrix;
uniform mat4 ModelMatrix;
uniform mat3 NormalMatrix;
uniform float wireStepParam;
uniform float ofs;
float get_edge_sharpness(float wd)
{
return (wd == 1.0) ? 1.0 : ((wd == 0.0) ? -1.0 : (wd + wireStepParam));
}
/* Geometry shader version */
#if defined(SELECT_EDGES) || defined(USE_SCULPT)
in vec3 pos;
in vec3 nor;
in float wd; /* wiredata */
out float facing_g;
out float edgeSharpness_g;
void main()
{
# ifndef USE_SCULPT
edgeSharpness_g = get_edge_sharpness(wd);
# else
/* TODO approximation using normals. */
edgeSharpness_g = 1.0;
# endif
mat4 projmat = ProjectionMatrix;
projmat[3][2] -= ofs;
gl_Position = projmat * (ModelViewMatrix * vec4(pos, 1.0));
facing_g = normalize(NormalMatrix * nor).z;
#ifdef USE_WORLD_CLIP_PLANES
world_clip_planes_calc_clip_distance((ModelMatrix * vec4(pos, 1.0)).xyz);
#endif
}
#else /* SELECT_EDGES */
in vec3 pos;
in vec3 nor;
in float wd;
out float facing;
flat out float edgeSharpness;
void main()
{
mat4 projmat = ProjectionMatrix;
projmat[3][2] -= ofs;
gl_Position = projmat * (ModelViewMatrix * vec4(pos, 1.0));
edgeSharpness = get_edge_sharpness(wd);
facing = normalize(NormalMatrix * nor).z;
#ifdef USE_WORLD_CLIP_PLANES
world_clip_planes_calc_clip_distance((ModelMatrix * vec4(pos, 1.0)).xyz);
#endif
}
#endif /* SELECT_EDGES */
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