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| -rw-r--r-- | readme.md | 57 |
1 files changed, 56 insertions, 1 deletions
@@ -104,7 +104,62 @@ It's largely influenced by the [RSL][3] and [GLSL][4] languages. Point3 viewport2world(Point3); /* Point3 viewport2world(Camera*, Point3); */ Point3 world2model(Point3); /* Point3 world2model(Entity*, Point3); */ -## References +## Examples + +in libgraphics: + + Point3 + phongvshader(VSparams *sp) + { + Point3 pos; + Color a, d, s; + double ss; + + sp->v->n = model2world(sp->su->entity, sp->v->n); + sp->v->p = model2world(sp->su->entity, sp->v->p); + pos = sp->v->p; + addvattr(sp->v, "pos", VAPoint, &pos); + if(sp->v->mtl != nil && sp->v->mtl->normalmap != nil && sp->v->uv.w != 0){ + sp->v->tangent = model2world(sp->su->entity, sp->v->tangent); + addvattr(sp->v, "tangent", VAPoint, &sp->v->tangent); + } + if(sp->v->mtl != nil){ + a = sp->v->mtl->ambient; + d = sp->v->mtl->diffuse; + s = sp->v->mtl->specular; + ss = sp->v->mtl->shininess; + addvattr(sp->v, "ambient", VAPoint, &a); + addvattr(sp->v, "diffuse", VAPoint, &d); + addvattr(sp->v, "specular", VAPoint, &s); + addvattr(sp->v, "shininess", VANumber, &ss); + } + return world2clip(sp->su->camera, pos); + } + +in semblance: + + out point pos; + out vector tangent; + out color ambient; + out color diffuse; + out color specular; + out double shininess; + + vs phong() { + normal = model2world(normal); + position = model2world(position); + pos = position; + if(material != nil){ + if(material->normalmap && uv.w != 0) + tangent = model2world(tangent); + ambient = material.ambient; + diffuse = material.diffuse; + specular = material.specular; + shininess = material.shininess; + } + return world2clip(pos); + } + [1]: https://shithub.us/rodri/libgraphics [2]: https://shithub.us/rodri/renderfs |