summaryrefslogtreecommitdiff
path: root/gfx/models/obj_loader.h
diff options
context:
space:
mode:
authorDan Goodliffe <dan@randomdan.homeip.net>2021-01-17 19:36:30 +0000
committerDan Goodliffe <dan@randomdan.homeip.net>2021-01-17 22:16:48 +0000
commit0bf4ad9e4a9e1c97e92aa23a365405dfef89bd7c (patch)
tree68a80976a247836bbb1eecc835af437e3489fbb7 /gfx/models/obj_loader.h
parentFirst cut modernizing and sanitizing (diff)
downloadilt-0bf4ad9e4a9e1c97e92aa23a365405dfef89bd7c.tar.bz2
ilt-0bf4ad9e4a9e1c97e92aa23a365405dfef89bd7c.tar.xz
ilt-0bf4ad9e4a9e1c97e92aa23a365405dfef89bd7c.zip
Big reshuffle
Fixes code quality warnings now picked up.
Diffstat (limited to 'gfx/models/obj_loader.h')
-rw-r--r--gfx/models/obj_loader.h53
1 files changed, 53 insertions, 0 deletions
diff --git a/gfx/models/obj_loader.h b/gfx/models/obj_loader.h
new file mode 100644
index 0000000..11c6b38
--- /dev/null
+++ b/gfx/models/obj_loader.h
@@ -0,0 +1,53 @@
+#ifndef OBJ_LOADER_H_INCLUDED
+#define OBJ_LOADER_H_INCLUDED
+
+#include <glm/glm.hpp>
+#include <string>
+#include <vector>
+
+struct OBJIndex {
+ unsigned int vertexIndex;
+ unsigned int uvIndex;
+ unsigned int normalIndex;
+
+ bool
+ operator<(const OBJIndex & r) const
+ {
+ return vertexIndex < r.vertexIndex;
+ }
+};
+
+class IndexedModel {
+public:
+ std::vector<glm::vec3> positions;
+ std::vector<glm::vec2> texCoords;
+ std::vector<glm::vec3> normals;
+ std::vector<unsigned int> indices;
+
+ void CalcNormals();
+};
+
+class OBJModel {
+public:
+ std::vector<OBJIndex> OBJIndices;
+ std::vector<glm::vec3> vertices;
+ std::vector<glm::vec2> uvs;
+ std::vector<glm::vec3> normals;
+ bool hasUVs;
+ bool hasNormals;
+
+ explicit OBJModel(const std::string & fileName);
+
+ IndexedModel ToIndexedModel();
+
+private:
+ unsigned int FindLastVertexIndex(
+ const std::vector<OBJIndex *> & indexLookup, const OBJIndex * currentIndex, const IndexedModel & result);
+ void CreateOBJFace(const std::string & line);
+
+ glm::vec2 ParseOBJVec2(const std::string & line);
+ glm::vec3 ParseOBJVec3(const std::string & line);
+ OBJIndex ParseOBJIndex(const std::string & token, bool * hasUVs, bool * hasNormals);
+};
+
+#endif // OBJ_LOADER_H_INCLUDED