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OBJFile parser seems to work.

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Can render a simple scene using it.

TODO: Need add way to set material to childs.
This commit is contained in:
Godzil
2020-03-06 09:38:39 +00:00
parent 2725b5f657
commit 518ac260e1
8 changed files with 12082 additions and 23 deletions
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98
tests/objfile_test.cpp
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@@ -9,10 +9,11 @@
#include <objfile.h>
#include <math.h>
#include <gtest/gtest.h>
#include <triangle.h>
TEST(OBJFileTest, Ignoring_unrecognised_lines)
{
const char gibberish[] = "There was a young lane named Bright\n"
const char gibberish[] = "There was a young lady named Bright\n"
"who traveled much faster than light\n"
"She set out one day\n"
"in a relative way\n"
@@ -22,4 +23,99 @@ TEST(OBJFileTest, Ignoring_unrecognised_lines)
parser.parseOBJFile(gibberish);
ASSERT_EQ(parser.ignoredLines, 5);
}
TEST(OBJFileTest, Vertex_record)
{
const char file[] = "v -1 1 0\n"
"v -1.0000 0.5000 0.0000\n"
"v 1 0 0\n"
"v 1 1 0\n";
OBJFile parser = OBJFile();
parser.parseOBJFile(file);
ASSERT_EQ(parser.vertices(1), Point(-1, 1, 0));
ASSERT_EQ(parser.vertices(2), Point(-1, 0.5, 0));
ASSERT_EQ(parser.vertices(3), Point(1, 0, 0));
ASSERT_EQ(parser.vertices(4), Point(1, 1, 0));
}
TEST(OBJFileTest, Parsing_triangle_faces)
{
const char file[] = "v -1 1 0\n"
"v -1 0 0\n"
"v 1 0 0\n"
"v 1 1 0\n"
"\n"
"f 1 2 3\n"
"f 1 3 4\n";
OBJFile parser = OBJFile();
parser.parseOBJFile(file);
Group *g0 = parser.groups(0);
Triangle *t1 = (Triangle *)(*g0)[0];
Triangle *t2 = (Triangle *)(*g0)[1];
ASSERT_EQ(t1->p1, parser.vertices(1));
ASSERT_EQ(t1->p2, parser.vertices(2));
ASSERT_EQ(t1->p3, parser.vertices(3));
ASSERT_EQ(t2->p1, parser.vertices(1));
ASSERT_EQ(t2->p2, parser.vertices(3));
ASSERT_EQ(t2->p3, parser.vertices(4));
}
TEST(OBJFileTest, Triangulating_polygons)
{
const char file[] = "v -1 1 0\n"
"v -1 0 0\n"
"v 1 0 0\n"
"v 1 1 0\n"
"v 0 2 0\n"
"\n"
"f 1 2 3 4 5\n";
OBJFile parser = OBJFile();
parser.parseOBJFile(file);
Group *g0 = parser.groups(0);
Triangle *t1 = (Triangle *)(*g0)[0];
Triangle *t2 = (Triangle *)(*g0)[1];
Triangle *t3 = (Triangle *)(*g0)[2];
ASSERT_EQ(t1->p1, parser.vertices(1));
ASSERT_EQ(t1->p2, parser.vertices(2));
ASSERT_EQ(t1->p3, parser.vertices(3));
ASSERT_EQ(t2->p1, parser.vertices(1));
ASSERT_EQ(t2->p2, parser.vertices(3));
ASSERT_EQ(t2->p3, parser.vertices(4));
ASSERT_EQ(t3->p1, parser.vertices(1));
ASSERT_EQ(t3->p2, parser.vertices(4));
ASSERT_EQ(t3->p3, parser.vertices(5));
}
TEST(OBJFileTest, Triangle_in_groups)
{
OBJFile parser = OBJFile("triangles.obj");
/* TODO: Add group name search/test */
Group *g1 = parser.groups(1);
Group *g2 = parser.groups(2);
Triangle *t1 = (Triangle *)(*g1)[0];
Triangle *t2 = (Triangle *)(*g2)[0];
ASSERT_EQ(t1->p1, parser.vertices(1));
ASSERT_EQ(t1->p2, parser.vertices(2));
ASSERT_EQ(t1->p3, parser.vertices(3));
ASSERT_EQ(t2->p1, parser.vertices(1));
ASSERT_EQ(t2->p2, parser.vertices(3));
ASSERT_EQ(t2->p3, parser.vertices(4));
}