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Slowly digging my way out of this positions_buffer hole

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This commit is contained in:
Chris Hodapp 2020-01-17 18:00:24 -05:00
parent a79fca28c2
commit 3510ff94ed
1 changed files with 37 additions and 10 deletions
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47
src/main.rs
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@ -124,8 +124,8 @@ fn curve_horn_thing_rule(v: Vec<Mesh>) -> Vec<RuleStep> {
let v1a_d = vertex_id_to_usize(v1a_);
let v1b_d = vertex_id_to_usize(v1b_);
let v2a_d = vertex_id_to_usize(v2a_);
let v2b_d = vertex_id_to_usize(v2b_);
let v2a_d = vertex_id_to_usize(v2a_) + seed.no_vertices();
let v2b_d = vertex_id_to_usize(v2b_) + seed.no_vertices();
println!("DEBUG: i={} e1={} ({}-{}) e2={} ({}-{})", i, e1, v1a, v1b, e2, v2a, v2b);
// TODO: Figure out why I am seeing two different things
@ -136,8 +136,8 @@ fn curve_horn_thing_rule(v: Vec<Mesh>) -> Vec<RuleStep> {
println!("DEBUG: e1, {:?}", seed.edge_positions(*e1));
// and for e2 here:
println!("DEBUG: i={} e2: ({},{},{}) to ({},{},{})",
i, pos[3*v2a_d+3], pos[3*v2a_d+4], pos[3*v2a_d+5],
pos[3*v2b_d+3], pos[3*v2b_d+4], pos[3*v2b_d+5]);
i, pos[3*v2a_d], pos[3*v2a_d+1], pos[3*v2a_d+2],
pos[3*v2b_d], pos[3*v2b_d+1], pos[3*v2b_d+2]);
println!("DEBUG: e2, {:?}", mesh.edge_positions(*e2));
// First triangle:
indices[6*i + 0] = v1a;
@ -149,7 +149,19 @@ fn curve_horn_thing_rule(v: Vec<Mesh>) -> Vec<RuleStep> {
indices[6*i + 5] = offset + v2b;
println!("DEBUG: i={} ({}, {}, {}) and ({}, {}, {})", i, v1a, v1b, offset + v2a, offset + v2a, v1b, offset + v2b);
}
// TODO: This is *still* connecting wrong somehow
// TODO: This is *still* connecting wrong somehow.
// positions_buffer just calls vertex_iter() and
// vertex_position anyway, so why not just access directly?
// The only thing that matters with my own indices is that
// they be u32 and they point to the right vertex (and I can
// choose the vertices).
// So maybe...
// - Assemble vertices just from 'bounds'.
// - Disregard positions_buffer completely. I don't need it.
// - Set 'indices' based on what I know about how 'bounds' was
// constructed.
let joined = match MeshBuilder::new().with_positions(pos).with_indices(indices).build() {
Ok(m) => m,
@ -386,12 +398,27 @@ fn main() {
s.apply_transformation(Matrix4::from_translation(vec3(-0.5, -0.5, 0.0)));
s
};
/*
let mb = MeshBound::new(&seed).unwrap();
for bound_edge in mb {
println!("Boundary edge: {}", bound_edge);
// TEMP (while I figure shit out)
struct VID { val: usize }
fn vertex_id_to_usize(v: VertexID) -> usize {
let v: VID = unsafe { std::mem::transmute(v) };
v.val
}
*/
println!("DEBUG-------------------------------");
let mb = MeshBound::new(&seed).unwrap();
let mut pos = seed.positions_buffer();
for bound_edge in mb {
let (v1, v2) = seed.edge_vertices(bound_edge);
let v1idx = vertex_id_to_usize(v1);
let v2idx = vertex_id_to_usize(v2);
println!("Boundary edge {}, vertices = {},{}, {:?}",
bound_edge, v1, v2, seed.edge_positions(bound_edge));
println!("v1idx={} pos[...]=[{},{},{}], v2idx={}, pos[...]=[{},{},{}]",
v1idx, pos[3*v1idx], pos[3*v1idx+1], pos[3*v1idx+2],
v2idx, pos[3*v2idx], pos[3*v2idx+1], pos[3*v2idx+2]);
}
println!("DEBUG-------------------------------");
let (mesh, nodes) = rule_to_mesh(&r2, vec![seed], 5);
println!("Collected {} nodes, produced {} faces, {} vertices",