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FBX2glTF
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Fix broken U/V flipping.

This commit is contained in:
Par Winzell 2019-01-11 19:38:33 -08:00
parent 1145defda3
commit 5c07d274c3
1 changed files with 37 additions and 22 deletions
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59
src/FBX2glTF.cpp
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@ -103,33 +103,29 @@ int main(int argc, char* argv[]) {
"When to compute vertex normals from mesh geometry.")
->type_name("(never|broken|missing|always)");
std::vector<std::function<Vec2f(Vec2f)>> texturesTransforms;
bool flip_u = false;
bool flip_v = true;
app.add_flag_function(
"--flip-u",
[&](size_t count) {
if (count > 0) {
texturesTransforms.emplace_back([](Vec2f uv) { return Vec2f(1.0f - uv[0], uv[1]); });
if (verboseOutput) {
fmt::printf("Flipping texture coordinates in the 'U' dimension.\n");
}
}
},
"Flip all U texture coordinates.");
app.add_flag("--no-flip-u", "Don't flip U texture coordinates.")->excludes("--flip-u");
[&](const size_t count) { flip_u = flip_u || (count > 0); },
"Flip all V texture coordinates.");
app.add_flag_function(
"--no-flip-v",
[&](size_t count) {
if (count > 0) {
texturesTransforms.emplace_back([](Vec2f uv) { return Vec2f(uv[0], 1.0f - uv[1]); });
if (verboseOutput) {
fmt::printf("NOT flipping texture coordinates in the 'V' dimension.\n");
}
}
},
"--no-flip-u",
[&](const size_t count) { flip_u = flip_u && (count == 0); },
"Don't flip U texture coordinates.")
->excludes("--flip-u");
app.add_flag_function(
"--flip-v",
[&](const size_t count) { flip_v = flip_v || (count > 0); },
"Flip all V texture coordinates.");
app.add_flag("--flip-v", "Don't flip U texture coordinates.")->excludes("--no-flip-v");
app.add_flag_function(
"--no-flip-v",
[&](const size_t count) { flip_v = flip_v && (count == 0); },
"Don't flip V texture coordinates.")
->excludes("--flip-v");
app.add_flag(
"--pbr-metallic-rougnness",
@ -250,6 +246,25 @@ int main(int argc, char* argv[]) {
CLI11_PARSE(app, argc, argv);
std::vector<std::function<Vec2f(Vec2f)>> texturesTransforms;
if (flip_u || flip_v) {
if (flip_u && flip_v) {
texturesTransforms.emplace_back([](Vec2f uv) { return Vec2f(1.0 - uv[0], 1.0 - uv[1]); });
} else if (flip_u) {
texturesTransforms.emplace_back([](Vec2f uv) { return Vec2f(1.0 - uv[0], uv[1]); });
} else {
texturesTransforms.emplace_back([](Vec2f uv) { return Vec2f(uv[0], 1.0 - uv[1]); });
}
}
if (verboseOutput) {
if (flip_u) {
fmt::printf("Flipping texture coordinates in the 'U' dimension.\n");
}
if (!flip_v) {
fmt::printf("NOT flipping texture coordinates in the 'V' dimension.\n");
}
}
if (inputPath.empty()) {
fmt::printf("You must supply a FBX file to convert.\n");
exit(1);