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feat: 'region', 'region-scale' support for 'tri' primitive

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MihailRis 2026-01-05 16:28:04 +03:00
parent 3e0ef334d4
commit 331215e783
2 changed files with 24 additions and 16 deletions
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36
src/coders/vcm.cpp
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@ -3,6 +3,7 @@
#include <algorithm>
#include <glm/gtc/quaternion.hpp>
#include <glm/gtc/matrix_transform.hpp>
#include <glm/gtc/type_ptr.hpp>
#include "xml.hpp"
#include "util/stringutil.hpp"
@ -76,32 +77,35 @@ static void perform_triangle(const xmlelement& root, model::Model& model) {
auto pointB = root.attr("b").asVec3();
auto pointC = root.attr("c").asVec3();
float uvs[6] {0, 0, 1, 0, 1, 1};
glm::vec2 uvs[3] {{0, 0}, {1, 0}, {1, 1}};
bool shading = true;
if (root.has("shading")) {
shading = to_boolean(root.attr("shading"));
}
if (root.has("uv")) {
root.attr("uv").asNumbers(uvs, sizeof(uvs) / sizeof(float));
}
glm::vec3 ba = pointB - pointA;
glm::vec3 ca = pointC - pointA;
glm::vec3 normal = glm::normalize(glm::cross(ba, ca));
if (root.has("uv")) {
root.attr("uv").asNumbers(glm::value_ptr(uvs[0]), 6);
} else {
UVRegion region {};
if (root.has("region")) {
region.set(root.attr("region").asVec4());
}
if (root.has("region-scale")) {
region.scale(root.attr("region-scale").asVec2());
}
for (auto& uv : uvs) {
uv = region.apply(uv);
}
}
std::string texture = root.attr("texture", "$0").getText();
auto& mesh = model.addMesh(texture, shading);
mesh.addTriangle(
pointA,
pointB,
pointC,
normal,
{uvs[0], uvs[1]},
{uvs[2], uvs[3]},
{uvs[4], uvs[5]}
);
mesh.addTriangle(pointA, pointB, pointC, normal, uvs[0], uvs[1], uvs[2]);
}
static void perform_box(const xmlelement& root, model::Model& model) {