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Smooth triangles! And support for them in the OBJ File parser.

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Also add an interesting tea party scene!
This commit is contained in:
Godzil
2020-03-06 15:07:26 +00:00
parent 73012b6dd1
commit e57b5715e8
38 changed files with 705 additions and 75 deletions
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55
tests/objfile_test.cpp
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@@ -10,6 +10,7 @@
#include <math.h>
#include <gtest/gtest.h>
#include <triangle.h>
#include <smoothtriangle.h>
TEST(OBJFileTest, Ignoring_unrecognised_lines)
{
@@ -118,4 +119,58 @@ TEST(OBJFileTest, Triangle_in_groups)
ASSERT_EQ(t2->p1, parser.vertices(1));
ASSERT_EQ(t2->p2, parser.vertices(3));
ASSERT_EQ(t2->p3, parser.vertices(4));
}
TEST(OBJFileTest, Vertex_normal_record)
{
const char file[] = "vn 0 0 1\n"
"vn 0.707 0 -0.707\n"
"vn 1 2 3\n";
OBJFile parser = OBJFile();
parser.parseOBJFile(file);
ASSERT_EQ(parser.verticesNormal(1), Vector(0, 0, 1));
ASSERT_EQ(parser.verticesNormal(2), Vector(0.707, 0, -0.707));
ASSERT_EQ(parser.verticesNormal(3), Vector(1, 2, 3));
}
TEST(OBJFileTest, Faces_with_normal)
{
const char file[] = "v 0 1 0\n"
"v -1 0 0\n"
"v 1 0 0\n"
"\n"
"vn -1 0 0\n"
"vn 1 0 0\n"
"vn 0 1 0\n"
"\n"
"f 1//3 2//1 3//2\n"
"f 1/0/3 2/102/1 3/14/2\n";
OBJFile parser = OBJFile();
parser.parseOBJFile(file);
Group *g0 = parser.groups(0);
SmoothTriangle *t1 = (SmoothTriangle *)(*g0)[0];
SmoothTriangle *t2 = (SmoothTriangle *)(*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(t1->n1, parser.verticesNormal(3));
ASSERT_EQ(t1->n2, parser.verticesNormal(1));
ASSERT_EQ(t1->n3, parser.verticesNormal(2));
ASSERT_EQ(t2->p1, parser.vertices(1));
ASSERT_EQ(t2->p2, parser.vertices(2));
ASSERT_EQ(t2->p3, parser.vertices(3));
ASSERT_EQ(t2->n1, parser.verticesNormal(3));
ASSERT_EQ(t2->n2, parser.verticesNormal(1));
ASSERT_EQ(t2->n3, parser.verticesNormal(2));
}