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Continue working on Cube mapping

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Godzil
2020-03-05 00:10:39 +00:00
parent f5685a45e1
commit 3ebe403de0
4 changed files with 454 additions and 12 deletions
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238
tests/pattern_test.cpp
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@@ -466,4 +466,242 @@ TEST(PatternTest, Layout_of_the_align_check_pattern)
Colour ret = uvac.uvPatternAt(testList[i][0], testList[i][1]);
ASSERT_EQ(ret, testResults[i]);
}
}
TEST(PatternTest, Identifying_the_face_of_a_cube_from_a_point)
{
Point testList[] = {
Point(-1, 0.5, -0.25),
Point(1.1, -0.75, 0.8),
Point(0.1, 0.6, 0.9),
Point(-0.7, 0, -2),
Point(0.5, 1, 0.9),
Point(-0.2, -1.3, 1.1),
};
TextureMap::CubeFaces testResults[] {
TextureMap::CUBE_LEFT,
TextureMap::CUBE_RIGHT,
TextureMap::CUBE_FRONT,
TextureMap::CUBE_BACK,
TextureMap::CUBE_UP,
TextureMap::CUBE_DOWN,
};
int testCount = sizeof(testList)/sizeof((testList)[0]);
int i;
TextureMap tm = TextureMap(CUBIC_MAP, nullptr);
for(i = 0; i < testCount; i++)
{
TextureMap::CubeFaces face = tm.faceFromPoint(testList[i]);
ASSERT_EQ(face, testResults[i]);
}
}
TEST(PatternTest, UV_mapping_the_front_face_of_a_cube)
{
Point testList[] = {
Point(-0.5, 0.5, 1),
Point(0.5, -0.5, 1),
};
double testResults[][2] {
{0.25, 0.75},
{0.75, 0.25},
};
int testCount = sizeof(testList)/sizeof((testList)[0]);
int i;
TextureMap tm = TextureMap(CUBIC_MAP, nullptr);
for(i = 0; i < testCount; i++)
{
double u, v;
tm.cubeUBFront(testList[i], u, v);
ASSERT_TRUE(double_equal(u, testResults[i][0]));
ASSERT_TRUE(double_equal(v, testResults[i][1]));
}
}
TEST(PatternTest, UV_mapping_the_back_face_of_a_cube)
{
Point testList[] = {
Point(0.5, 0.5, -1),
Point(-0.5, -0.5, -1),
};
double testResults[][2] {
{0.25, 0.75},
{0.75, 0.25},
};
int testCount = sizeof(testList)/sizeof((testList)[0]);
int i;
TextureMap tm = TextureMap(CUBIC_MAP, nullptr);
for(i = 0; i < testCount; i++)
{
double u, v;
tm.cubeUBBack(testList[i], u, v);
ASSERT_TRUE(double_equal(u, testResults[i][0]));
ASSERT_TRUE(double_equal(v, testResults[i][1]));
}
}
TEST(PatternTest, UV_mapping_the_left_face_of_a_cube)
{
Point testList[] = {
Point(-1, 0.5, -0.5),
Point(-1, -0.5, 0.5),
};
double testResults[][2] {
{0.25, 0.75},
{0.75, 0.25},
};
int testCount = sizeof(testList)/sizeof((testList)[0]);
int i;
TextureMap tm = TextureMap(CUBIC_MAP, nullptr);
for(i = 0; i < testCount; i++)
{
double u, v;
tm.cubeUBLeft(testList[i], u, v);
ASSERT_TRUE(double_equal(u, testResults[i][0]));
ASSERT_TRUE(double_equal(v, testResults[i][1]));
}
}
TEST(PatternTest, UV_mapping_the_right_face_of_a_cube)
{
Point testList[] = {
Point(1, 0.5, 0.5),
Point(1, -0.5, -0.5),
};
double testResults[][2] {
{0.25, 0.75},
{0.75, 0.25},
};
int testCount = sizeof(testList)/sizeof((testList)[0]);
int i;
TextureMap tm = TextureMap(CUBIC_MAP, nullptr);
for(i = 0; i < testCount; i++)
{
double u, v;
tm.cubeUBRight(testList[i], u, v);
ASSERT_TRUE(double_equal(u, testResults[i][0]));
ASSERT_TRUE(double_equal(v, testResults[i][1]));
}
}
TEST(PatternTest, UV_mapping_the_up_face_of_a_cube)
{
Point testList[] = {
Point(-0.5, 1, -0.5),
Point(0.5, 1, 0.5),
};
double testResults[][2] {
{0.25, 0.75},
{0.75, 0.25},
};
int testCount = sizeof(testList)/sizeof((testList)[0]);
int i;
TextureMap tm = TextureMap(CUBIC_MAP, nullptr);
for(i = 0; i < testCount; i++)
{
double u, v;
tm.cubeUBUp(testList[i], u, v);
ASSERT_TRUE(double_equal(u, testResults[i][0]));
ASSERT_TRUE(double_equal(v, testResults[i][1]));
}
}
TEST(PatternTest, UV_mapping_the_down_face_of_a_cube)
{
Point testList[] = {
Point(-0.5, -1, 0.5),
Point(0.5, -1, -0.5),
};
double testResults[][2] {
{0.25, 0.75},
{0.75, 0.25},
};
int testCount = sizeof(testList)/sizeof((testList)[0]);
int i;
TextureMap tm = TextureMap(CUBIC_MAP, nullptr);
for(i = 0; i < testCount; i++)
{
double u, v;
tm.cubeUBDown(testList[i], u, v);
ASSERT_TRUE(double_equal(u, testResults[i][0]));
ASSERT_TRUE(double_equal(v, testResults[i][1]));
}
}
TEST(PatternTest, Finding_the_colours_on_a_mapped_cube)
{
Colour red = Colour(1, 0, 0);
Colour yellow = Colour(1, 1, 0);
Colour brown = Colour(1, 0.5, 0);
Colour green = Colour(0, 1, 0);
Colour cyan = Colour(0, 1, 1);
Colour blue = Colour(0, 0, 1);
Colour purple = Colour(1, 0, 1);
Colour white = Colour(1, 1, 1);
UVAlignCheck left = UVAlignCheck(yellow, cyan, red, blue, brown);
UVAlignCheck front = UVAlignCheck(cyan, red, yellow, brown, green);
UVAlignCheck right = UVAlignCheck(red, yellow, purple, green, white);
UVAlignCheck back = UVAlignCheck(green, purple, cyan, white, blue);
UVAlignCheck up = UVAlignCheck(brown, cyan, purple, red, yellow);
UVAlignCheck down = UVAlignCheck(purple, brown, green, blue, white);
TextureMap tm = TextureMap(CUBIC_MAP, nullptr);
tm.setCubePattern(&front, &left, &right, &back, &up, &down);
Point testList[] = {
Point(-1, 0, 0), Point(-1, 0.9, -0.9), Point(-1, 0.9, 0.9), Point(-1, -0.9, -0.9), Point(-1, -0.9, 0.9), /* left */
Point(0, 0, 1), Point(-0.9, 0.9, 1), Point(0.9, 0.9, 1), Point(-0.9, -0.9, 1), Point(0.9, -0.9, 1), /* front */
Point(1, 0, 0), Point(1, 0.9, 0.9), Point(1, 0.9, -0.9), Point(1, -0.9, 0.9), Point(1, -0.9, -0.9), /* right */
Point(0, 0, -1), Point(0.9, 0.9, -1), Point(-0.9, 0.9, -1), Point(0.9, -0.9, -1), Point(-0.9, -0.9, -1), /* back */
Point(0, 1, 0), Point(-0.9, 1, -0.9), Point(0.9, 1, -0.9), Point(-0.9, 1, 0.9), Point(0.9, 1, 0.9), /* up */
Point(0, -1, 0), Point(-0.9, -1, 0.9), Point(0.9, -1, 0.9), Point(-0.9, -1, -0.9), Point(0.9, -1, -0.9), /* down */
};
Colour testResults[] {
yellow, cyan, red, blue, brown, /* left */
cyan, red, yellow, brown, green, /* front */
red, yellow, purple, green, white, /* right */
green, purple, cyan, white, blue, /* back */
brown, cyan, purple, red, yellow, /* up */
purple, brown, green, blue, white, /* down */
};
int testCount = sizeof(testList)/sizeof((testList)[0]);
int i;
for(i = 0; i < testCount; i++)
{
Colour ret = tm.patternAt(testList[i]);
ASSERT_EQ(ret, testResults[i]);
}
}