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Tweak docs, add tests, find bugs

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Ben Visness
2023-02-02 19:18:24 -06:00
parent 50ab55b3bc
commit beb837a3c6
5 changed files with 234 additions and 205 deletions
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61
test/HandmadeTest.h
View File

@@ -148,25 +148,35 @@ INITIALIZER(_HMT_COVERCASE_FUNCNAME_INIT(name)) { \
} \
} \
#define HMT_EXPECT_FLOAT_EQ(_actual, _expected) { \
#define HMT_EXPECT_FLOAT_EQ_MSG(_actual, _expected, _msg) { \
_HMT_CASE_START(); \
float actual = (_actual); \
float diff = actual - (_expected); \
if (diff < -FLT_EPSILON || FLT_EPSILON < diff) { \
_HMT_CASE_FAIL(); \
printf("Expected %f, got %f", (_expected), actual); \
if ((_msg)[0] == 0) { \
printf("Expected %f, got %f", (_expected), actual); \
} else { \
printf("%s: Expected %f, got %f", (_msg), (_expected), actual); \
} \
} \
} \
}
#define HMT_EXPECT_FLOAT_EQ(_actual, _expected) HMT_EXPECT_FLOAT_EQ_MSG(_actual, _expected, "");
#define HMT_EXPECT_NEAR(_actual, _expected, _epsilon) { \
#define HMT_EXPECT_NEAR_MSG(_actual, _expected, _epsilon, _msg) { \
_HMT_CASE_START(); \
float actual = (_actual); \
float diff = actual - (_expected); \
if (diff < -(_epsilon) || (_epsilon) < diff) { \
_HMT_CASE_FAIL(); \
printf("Expected %f, got %f", (_expected), actual); \
if ((_msg)[0] == 0) { \
printf("Expected %f, got %f", (_expected), actual); \
} else { \
printf("%s: Expected %f, got %f", (_msg), (_expected), actual); \
} \
} \
} \
}
#define HMT_EXPECT_NEAR(_actual, _expected, _epsilon) HMT_EXPECT_NEAR_MSG(_actual, _expected, _epsilon, "");
#define HMT_EXPECT_LT(_actual, _expected) { \
_HMT_CASE_START(); \
@@ -192,7 +202,46 @@ INITIALIZER(_HMT_COVERCASE_FUNCNAME_INIT(name)) { \
#define EXPECT_TRUE(_actual) HMT_EXPECT_TRUE(_actual)
#define EXPECT_FALSE(_actual) HMT_EXPECT_FALSE(_actual)
#define EXPECT_FLOAT_EQ(_actual, _expected) HMT_EXPECT_FLOAT_EQ(_actual, _expected)
#define EXPECT_V4_EQ(_actual, _expected) \
HMT_EXPECT_FLOAT_EQ_MSG(_actual.X, _expected.X, "incorrect X"); \
HMT_EXPECT_FLOAT_EQ_MSG(_actual.Y, _expected.Y, "incorrect Y"); \
HMT_EXPECT_FLOAT_EQ_MSG(_actual.Z, _expected.Z, "incorrect Z"); \
HMT_EXPECT_FLOAT_EQ_MSG(_actual.W, _expected.W, "incorrect W");
#define EXPECT_M4_EQ(_actual, _expected) \
HMT_EXPECT_FLOAT_EQ_MSG(_actual.Elements[0][0], _expected.Elements[0][0], "incorrect [0][0]"); \
HMT_EXPECT_FLOAT_EQ_MSG(_actual.Elements[0][1], _expected.Elements[0][1], "incorrect [0][1]"); \
HMT_EXPECT_FLOAT_EQ_MSG(_actual.Elements[0][2], _expected.Elements[0][2], "incorrect [0][2]"); \
HMT_EXPECT_FLOAT_EQ_MSG(_actual.Elements[0][3], _expected.Elements[0][3], "incorrect [0][3]"); \
HMT_EXPECT_FLOAT_EQ_MSG(_actual.Elements[1][0], _expected.Elements[1][0], "incorrect [1][0]"); \
HMT_EXPECT_FLOAT_EQ_MSG(_actual.Elements[1][1], _expected.Elements[1][1], "incorrect [1][1]"); \
HMT_EXPECT_FLOAT_EQ_MSG(_actual.Elements[1][2], _expected.Elements[1][2], "incorrect [1][2]"); \
HMT_EXPECT_FLOAT_EQ_MSG(_actual.Elements[1][3], _expected.Elements[1][3], "incorrect [1][3]"); \
HMT_EXPECT_FLOAT_EQ_MSG(_actual.Elements[2][0], _expected.Elements[2][0], "incorrect [2][0]"); \
HMT_EXPECT_FLOAT_EQ_MSG(_actual.Elements[2][1], _expected.Elements[2][1], "incorrect [2][1]"); \
HMT_EXPECT_FLOAT_EQ_MSG(_actual.Elements[2][2], _expected.Elements[2][2], "incorrect [2][2]"); \
HMT_EXPECT_FLOAT_EQ_MSG(_actual.Elements[2][3], _expected.Elements[2][3], "incorrect [2][3]"); \
HMT_EXPECT_FLOAT_EQ_MSG(_actual.Elements[3][0], _expected.Elements[3][0], "incorrect [3][0]"); \
HMT_EXPECT_FLOAT_EQ_MSG(_actual.Elements[3][1], _expected.Elements[3][1], "incorrect [3][1]"); \
HMT_EXPECT_FLOAT_EQ_MSG(_actual.Elements[3][2], _expected.Elements[3][2], "incorrect [3][2]"); \
HMT_EXPECT_FLOAT_EQ_MSG(_actual.Elements[3][3], _expected.Elements[3][3], "incorrect [3][3]");
#define EXPECT_NEAR(_actual, _expected, _epsilon) HMT_EXPECT_NEAR(_actual, _expected, _epsilon)
#define EXPECT_M4_NEAR(_actual, _expected, _epsilon) \
HMT_EXPECT_NEAR_MSG(_actual.Elements[0][0], _expected.Elements[0][0], _epsilon, "incorrect [0][0]"); \
HMT_EXPECT_NEAR_MSG(_actual.Elements[0][1], _expected.Elements[0][1], _epsilon, "incorrect [0][1]"); \
HMT_EXPECT_NEAR_MSG(_actual.Elements[0][2], _expected.Elements[0][2], _epsilon, "incorrect [0][2]"); \
HMT_EXPECT_NEAR_MSG(_actual.Elements[0][3], _expected.Elements[0][3], _epsilon, "incorrect [0][3]"); \
HMT_EXPECT_NEAR_MSG(_actual.Elements[1][0], _expected.Elements[1][0], _epsilon, "incorrect [1][0]"); \
HMT_EXPECT_NEAR_MSG(_actual.Elements[1][1], _expected.Elements[1][1], _epsilon, "incorrect [1][1]"); \
HMT_EXPECT_NEAR_MSG(_actual.Elements[1][2], _expected.Elements[1][2], _epsilon, "incorrect [1][2]"); \
HMT_EXPECT_NEAR_MSG(_actual.Elements[1][3], _expected.Elements[1][3], _epsilon, "incorrect [1][3]"); \
HMT_EXPECT_NEAR_MSG(_actual.Elements[2][0], _expected.Elements[2][0], _epsilon, "incorrect [2][0]"); \
HMT_EXPECT_NEAR_MSG(_actual.Elements[2][1], _expected.Elements[2][1], _epsilon, "incorrect [2][1]"); \
HMT_EXPECT_NEAR_MSG(_actual.Elements[2][2], _expected.Elements[2][2], _epsilon, "incorrect [2][2]"); \
HMT_EXPECT_NEAR_MSG(_actual.Elements[2][3], _expected.Elements[2][3], _epsilon, "incorrect [2][3]"); \
HMT_EXPECT_NEAR_MSG(_actual.Elements[3][0], _expected.Elements[3][0], _epsilon, "incorrect [3][0]"); \
HMT_EXPECT_NEAR_MSG(_actual.Elements[3][1], _expected.Elements[3][1], _epsilon, "incorrect [3][1]"); \
HMT_EXPECT_NEAR_MSG(_actual.Elements[3][2], _expected.Elements[3][2], _epsilon, "incorrect [3][2]"); \
HMT_EXPECT_NEAR_MSG(_actual.Elements[3][3], _expected.Elements[3][3], _epsilon, "incorrect [3][3]");
#define EXPECT_LT(_actual, _expected) HMT_EXPECT_LT(_actual, _expected)
#define EXPECT_GT(_actual, _expected) HMT_EXPECT_GT(_actual, _expected)
#endif // HMT_SAFE_MACROS

220
test/categories/MatrixOps.h
View File

@@ -246,60 +246,56 @@ TEST(InvMatrix, InvGeneral)
}
}
TEST(InvMatrix, Mat4Inverses)
TEST(InvMatrix, InvOrthographic)
{
{
HMM_Mat4 Matrix = HMM_Orthographic_RH_NO(-160+100, 160+100, -90+200, 90+200, 10, 10000);
HMM_Mat4 Expect = HMM_M4D(1.0f);
HMM_Mat4 Inverse = HMM_InvOrthographic(Matrix);
HMM_Mat4 Result = HMM_MulM4(Matrix, Inverse);
EXPECT_FLOAT_EQ(Result.Elements[0][0], Expect.Elements[0][0]);
EXPECT_FLOAT_EQ(Result.Elements[0][1], Expect.Elements[0][1]);
EXPECT_FLOAT_EQ(Result.Elements[0][2], Expect.Elements[0][2]);
EXPECT_FLOAT_EQ(Result.Elements[0][3], Expect.Elements[0][3]);
EXPECT_FLOAT_EQ(Result.Elements[1][0], Expect.Elements[1][0]);
EXPECT_FLOAT_EQ(Result.Elements[1][1], Expect.Elements[1][1]);
EXPECT_FLOAT_EQ(Result.Elements[1][2], Expect.Elements[1][2]);
EXPECT_FLOAT_EQ(Result.Elements[1][3], Expect.Elements[1][3]);
EXPECT_FLOAT_EQ(Result.Elements[2][0], Expect.Elements[2][0]);
EXPECT_FLOAT_EQ(Result.Elements[2][1], Expect.Elements[2][1]);
EXPECT_FLOAT_EQ(Result.Elements[2][2], Expect.Elements[2][2]);
EXPECT_FLOAT_EQ(Result.Elements[2][3], Expect.Elements[2][3]);
EXPECT_FLOAT_EQ(Result.Elements[3][0], Expect.Elements[3][0]);
EXPECT_FLOAT_EQ(Result.Elements[3][1], Expect.Elements[3][1]);
EXPECT_FLOAT_EQ(Result.Elements[3][2], Expect.Elements[3][2]);
EXPECT_FLOAT_EQ(Result.Elements[3][3], Expect.Elements[3][3]);
EXPECT_M4_EQ(HMM_MulM4(Matrix, Inverse), HMM_M4D(1.0f));
}
{
HMM_Mat4 Matrix = HMM_Perspective_RH_NO(HMM_AngleDeg(120), 16.0/9.0, 10, 10000);
HMM_Mat4 Expect = HMM_M4D(1.0f);
HMM_Mat4 Inverse = HMM_InvPerspective(Matrix);
HMM_Mat4 Result = HMM_MulM4(Matrix, Inverse);
EXPECT_FLOAT_EQ(Result.Elements[0][0], Expect.Elements[0][0]);
EXPECT_FLOAT_EQ(Result.Elements[0][1], Expect.Elements[0][1]);
EXPECT_FLOAT_EQ(Result.Elements[0][2], Expect.Elements[0][2]);
EXPECT_FLOAT_EQ(Result.Elements[0][3], Expect.Elements[0][3]);
EXPECT_FLOAT_EQ(Result.Elements[1][0], Expect.Elements[1][0]);
EXPECT_FLOAT_EQ(Result.Elements[1][1], Expect.Elements[1][1]);
EXPECT_FLOAT_EQ(Result.Elements[1][2], Expect.Elements[1][2]);
EXPECT_FLOAT_EQ(Result.Elements[1][3], Expect.Elements[1][3]);
EXPECT_FLOAT_EQ(Result.Elements[2][0], Expect.Elements[2][0]);
EXPECT_FLOAT_EQ(Result.Elements[2][1], Expect.Elements[2][1]);
EXPECT_FLOAT_EQ(Result.Elements[2][2], Expect.Elements[2][2]);
EXPECT_FLOAT_EQ(Result.Elements[2][3], Expect.Elements[2][3]);
EXPECT_FLOAT_EQ(Result.Elements[3][0], Expect.Elements[3][0]);
EXPECT_FLOAT_EQ(Result.Elements[3][1], Expect.Elements[3][1]);
EXPECT_FLOAT_EQ(Result.Elements[3][2], Expect.Elements[3][2]);
EXPECT_FLOAT_EQ(Result.Elements[3][3], Expect.Elements[3][3]);
HMM_Mat4 Matrix = HMM_Orthographic_RH_ZO(-160+100, 160+100, -90+200, 90+200, 10, 10000);
HMM_Mat4 Inverse = HMM_InvOrthographic(Matrix);
EXPECT_M4_EQ(HMM_MulM4(Matrix, Inverse), HMM_M4D(1.0f));
}
{
HMM_Mat4 Matrix = HMM_Orthographic_LH_NO(-160+100, 160+100, -90+200, 90+200, 10, 10000);
HMM_Mat4 Inverse = HMM_InvOrthographic(Matrix);
EXPECT_M4_EQ(HMM_MulM4(Matrix, Inverse), HMM_M4D(1.0f));
}
{
HMM_Mat4 Matrix = HMM_Orthographic_LH_ZO(-160+100, 160+100, -90+200, 90+200, 10, 10000);
HMM_Mat4 Inverse = HMM_InvOrthographic(Matrix);
EXPECT_M4_EQ(HMM_MulM4(Matrix, Inverse), HMM_M4D(1.0f));
}
}
TEST(InvMatrix, InvPerspective)
{
{
HMM_Mat4 Matrix = HMM_Perspective_RH_NO(HMM_AngleDeg(120), 16.0/9.0, 10, 10000);
HMM_Mat4 Inverse = HMM_InvPerspective(Matrix);
EXPECT_M4_EQ(HMM_MulM4(Matrix, Inverse), HMM_M4D(1.0f));
}
{
HMM_Mat4 Matrix = HMM_Perspective_RH_ZO(HMM_AngleDeg(120), 16.0/9.0, 10, 10000);
HMM_Mat4 Inverse = HMM_InvPerspective(Matrix);
EXPECT_M4_EQ(HMM_MulM4(Matrix, Inverse), HMM_M4D(1.0f));
}
{
HMM_Mat4 Matrix = HMM_Perspective_LH_NO(HMM_AngleDeg(120), 16.0/9.0, 10, 10000);
HMM_Mat4 Inverse = HMM_InvPerspective(Matrix);
EXPECT_M4_EQ(HMM_MulM4(Matrix, Inverse), HMM_M4D(1.0f));
}
{
HMM_Mat4 Matrix = HMM_Perspective_LH_ZO(HMM_AngleDeg(120), 16.0/9.0, 10, 10000);
HMM_Mat4 Inverse = HMM_InvPerspective(Matrix);
EXPECT_M4_EQ(HMM_MulM4(Matrix, Inverse), HMM_M4D(1.0f));
}
}
TEST(InvMatrix, InvLookAt)
{
{
HMM_Vec3 Eye = {10.0f, 10.0f, 10.0f};
HMM_Vec3 Center = {100.0f, 200.0f, 30.0f};
@@ -308,106 +304,56 @@ TEST(InvMatrix, Mat4Inverses)
HMM_Mat4 Expect = HMM_M4D(1.0f);
HMM_Mat4 Inverse = HMM_InvLookAt(Matrix);
HMM_Mat4 Result = HMM_MulM4(Matrix, Inverse);
EXPECT_NEAR(Result.Elements[0][0], Expect.Elements[0][0], 0.001f);
EXPECT_NEAR(Result.Elements[0][1], Expect.Elements[0][1], 0.001f);
EXPECT_NEAR(Result.Elements[0][2], Expect.Elements[0][2], 0.001f);
EXPECT_NEAR(Result.Elements[0][3], Expect.Elements[0][3], 0.001f);
EXPECT_NEAR(Result.Elements[1][0], Expect.Elements[1][0], 0.001f);
EXPECT_NEAR(Result.Elements[1][1], Expect.Elements[1][1], 0.001f);
EXPECT_NEAR(Result.Elements[1][2], Expect.Elements[1][2], 0.001f);
EXPECT_NEAR(Result.Elements[1][3], Expect.Elements[1][3], 0.001f);
EXPECT_NEAR(Result.Elements[2][0], Expect.Elements[2][0], 0.001f);
EXPECT_NEAR(Result.Elements[2][1], Expect.Elements[2][1], 0.001f);
EXPECT_NEAR(Result.Elements[2][2], Expect.Elements[2][2], 0.001f);
EXPECT_NEAR(Result.Elements[2][3], Expect.Elements[2][3], 0.001f);
EXPECT_NEAR(Result.Elements[3][0], Expect.Elements[3][0], 0.001f);
EXPECT_NEAR(Result.Elements[3][1], Expect.Elements[3][1], 0.001f);
EXPECT_NEAR(Result.Elements[3][2], Expect.Elements[3][2], 0.001f);
EXPECT_NEAR(Result.Elements[3][3], Expect.Elements[3][3], 0.001f);
EXPECT_M4_NEAR(Result, Expect, 0.001f);
}
{
HMM_Vec3 Eye = {10.0f, 10.0f, 10.0f};
HMM_Vec3 Center = {100.0f, 200.0f, 30.0f};
HMM_Vec3 Up = {0.0f, 0.0f, 1.0f};
HMM_Mat4 Matrix = HMM_LookAt_LH(Eye, Center, Up);
HMM_Mat4 Expect = HMM_M4D(1.0f);
HMM_Mat4 Inverse = HMM_InvLookAt(Matrix);
HMM_Mat4 Result = HMM_MulM4(Matrix, Inverse);
EXPECT_M4_NEAR(Result, Expect, 0.001f);
}
}
TEST(InvMatrix, InvRotate)
{
{
HMM_Vec3 Axis = {1.0f, -1.0f, 0.5f};
HMM_Mat4 Matrix = HMM_Rotate_RH(HMM_AngleDeg(30), HMM_NormV3(Axis));
HMM_Mat4 Expect = HMM_M4D(1.0f);
HMM_Mat4 Inverse = HMM_InvRotate(Matrix);
HMM_Mat4 Result = HMM_MulM4(Matrix, Inverse);
EXPECT_NEAR(Result.Elements[0][0], Expect.Elements[0][0], 0.001f);
EXPECT_NEAR(Result.Elements[0][1], Expect.Elements[0][1], 0.001f);
EXPECT_NEAR(Result.Elements[0][2], Expect.Elements[0][2], 0.001f);
EXPECT_NEAR(Result.Elements[0][3], Expect.Elements[0][3], 0.001f);
EXPECT_NEAR(Result.Elements[1][0], Expect.Elements[1][0], 0.001f);
EXPECT_NEAR(Result.Elements[1][1], Expect.Elements[1][1], 0.001f);
EXPECT_NEAR(Result.Elements[1][2], Expect.Elements[1][2], 0.001f);
EXPECT_NEAR(Result.Elements[1][3], Expect.Elements[1][3], 0.001f);
EXPECT_NEAR(Result.Elements[2][0], Expect.Elements[2][0], 0.001f);
EXPECT_NEAR(Result.Elements[2][1], Expect.Elements[2][1], 0.001f);
EXPECT_NEAR(Result.Elements[2][2], Expect.Elements[2][2], 0.001f);
EXPECT_NEAR(Result.Elements[2][3], Expect.Elements[2][3], 0.001f);
EXPECT_NEAR(Result.Elements[3][0], Expect.Elements[3][0], 0.001f);
EXPECT_NEAR(Result.Elements[3][1], Expect.Elements[3][1], 0.001f);
EXPECT_NEAR(Result.Elements[3][2], Expect.Elements[3][2], 0.001f);
EXPECT_NEAR(Result.Elements[3][3], Expect.Elements[3][3], 0.001f);
EXPECT_M4_NEAR(Result, Expect, 0.001f);
}
{
HMM_Vec3 Scale = {1.0f, -1.0f, 0.5f};
HMM_Mat4 Matrix = HMM_Scale(Scale);
HMM_Vec3 Axis = {1.0f, -1.0f, 0.5f};
HMM_Mat4 Matrix = HMM_Rotate_LH(HMM_AngleDeg(30), HMM_NormV3(Axis));
HMM_Mat4 Expect = HMM_M4D(1.0f);
HMM_Mat4 Inverse = HMM_InvScale(Matrix);
HMM_Mat4 Inverse = HMM_InvRotate(Matrix);
HMM_Mat4 Result = HMM_MulM4(Matrix, Inverse);
EXPECT_FLOAT_EQ(Result.Elements[0][0], Expect.Elements[0][0]);
EXPECT_FLOAT_EQ(Result.Elements[0][1], Expect.Elements[0][1]);
EXPECT_FLOAT_EQ(Result.Elements[0][2], Expect.Elements[0][2]);
EXPECT_FLOAT_EQ(Result.Elements[0][3], Expect.Elements[0][3]);
EXPECT_FLOAT_EQ(Result.Elements[1][0], Expect.Elements[1][0]);
EXPECT_FLOAT_EQ(Result.Elements[1][1], Expect.Elements[1][1]);
EXPECT_FLOAT_EQ(Result.Elements[1][2], Expect.Elements[1][2]);
EXPECT_FLOAT_EQ(Result.Elements[1][3], Expect.Elements[1][3]);
EXPECT_FLOAT_EQ(Result.Elements[2][0], Expect.Elements[2][0]);
EXPECT_FLOAT_EQ(Result.Elements[2][1], Expect.Elements[2][1]);
EXPECT_FLOAT_EQ(Result.Elements[2][2], Expect.Elements[2][2]);
EXPECT_FLOAT_EQ(Result.Elements[2][3], Expect.Elements[2][3]);
EXPECT_FLOAT_EQ(Result.Elements[3][0], Expect.Elements[3][0]);
EXPECT_FLOAT_EQ(Result.Elements[3][1], Expect.Elements[3][1]);
EXPECT_FLOAT_EQ(Result.Elements[3][2], Expect.Elements[3][2]);
EXPECT_FLOAT_EQ(Result.Elements[3][3], Expect.Elements[3][3]);
EXPECT_M4_NEAR(Result, Expect, 0.001f);
}
{
HMM_Vec3 Move = {1.0f, -1.0f, 0.5f};
HMM_Mat4 Matrix = HMM_Translate(Move);
HMM_Mat4 Expect = HMM_M4D(1.0f);
HMM_Mat4 Inverse = HMM_InvTranslate(Matrix);
HMM_Mat4 Result = HMM_MulM4(Matrix, Inverse);
EXPECT_FLOAT_EQ(Result.Elements[0][0], Expect.Elements[0][0]);
EXPECT_FLOAT_EQ(Result.Elements[0][1], Expect.Elements[0][1]);
EXPECT_FLOAT_EQ(Result.Elements[0][2], Expect.Elements[0][2]);
EXPECT_FLOAT_EQ(Result.Elements[0][3], Expect.Elements[0][3]);
EXPECT_FLOAT_EQ(Result.Elements[1][0], Expect.Elements[1][0]);
EXPECT_FLOAT_EQ(Result.Elements[1][1], Expect.Elements[1][1]);
EXPECT_FLOAT_EQ(Result.Elements[1][2], Expect.Elements[1][2]);
EXPECT_FLOAT_EQ(Result.Elements[1][3], Expect.Elements[1][3]);
EXPECT_FLOAT_EQ(Result.Elements[2][0], Expect.Elements[2][0]);
EXPECT_FLOAT_EQ(Result.Elements[2][1], Expect.Elements[2][1]);
EXPECT_FLOAT_EQ(Result.Elements[2][2], Expect.Elements[2][2]);
EXPECT_FLOAT_EQ(Result.Elements[2][3], Expect.Elements[2][3]);
EXPECT_FLOAT_EQ(Result.Elements[3][0], Expect.Elements[3][0]);
EXPECT_FLOAT_EQ(Result.Elements[3][1], Expect.Elements[3][1]);
EXPECT_FLOAT_EQ(Result.Elements[3][2], Expect.Elements[3][2]);
EXPECT_FLOAT_EQ(Result.Elements[3][3], Expect.Elements[3][3]);
}
}
TEST(InvMatrix, InvScale)
{
HMM_Vec3 Scale = {1.0f, -1.0f, 0.5f};
HMM_Mat4 Matrix = HMM_Scale(Scale);
HMM_Mat4 Expect = HMM_M4D(1.0f);
HMM_Mat4 Inverse = HMM_InvScale(Matrix);
HMM_Mat4 Result = HMM_MulM4(Matrix, Inverse);
EXPECT_M4_EQ(Result, Expect);
}
TEST(InvMatrix, InvTranslate)
{
HMM_Vec3 Move = {1.0f, -1.0f, 0.5f};
HMM_Mat4 Matrix = HMM_Translate(Move);
HMM_Mat4 Expect = HMM_M4D(1.0f);
HMM_Mat4 Inverse = HMM_InvTranslate(Matrix);
HMM_Mat4 Result = HMM_MulM4(Matrix, Inverse);
EXPECT_M4_EQ(Result, Expect);
}

113
test/categories/Projection.h
View File

@@ -2,67 +2,84 @@
TEST(Projection, Orthographic)
{
#define ORTHO_BOUNDS -8.0f, 12.0f, 5.0f, 10.0f, 1.0f, 100.0f
// Right-handed
{
HMM_Mat4 projection = HMM_Orthographic_RH_NO(-10.0f, 10.0f, -5.0f, 5.0f, 1.0f, 10.0f);
HMM_Vec4 original = HMM_V4(5.0f, 5.0f, -1.0f, 1.0);
HMM_Vec4 projected = HMM_MulM4V4(projection, original);
// Near and far distances correspond to negative Z, hence the Z coordinates here are negative.
HMM_Vec4 minCorner = HMM_V4(-8.0f, 5.0f, -1.0f, 1.0);
HMM_Vec4 maxCorner = HMM_V4(12.0f, 10.0f, -100.0f, 1.0);
EXPECT_FLOAT_EQ(projected.X, 0.5f);
EXPECT_FLOAT_EQ(projected.Y, 1.0f);
EXPECT_FLOAT_EQ(projected.Z, -1.0f);
EXPECT_FLOAT_EQ(projected.W, 1.0f);
// Z from -1 to 1 (GL convention)
{
HMM_Mat4 projection = HMM_Orthographic_RH_NO(ORTHO_BOUNDS);
EXPECT_V4_EQ(HMM_MulM4V4(projection, minCorner), HMM_V4(-1.0f, -1.0f, -1.0f, 1.0f));
EXPECT_V4_EQ(HMM_MulM4V4(projection, maxCorner), HMM_V4(1.0f, 1.0f, 1.0f, 1.0f));
}
/* Z0 */
projection = HMM_Orthographic_RH_ZO(-10.0f, 10.0f, -5.0f, 5.0f, 1.0f, -10.0f);
projected = HMM_MulM4V4(projection, original);
EXPECT_FLOAT_EQ(projected.Z, 0.0f);
// Z from 0 to 1 (DX convention)
{
HMM_Mat4 projection = HMM_Orthographic_RH_ZO(ORTHO_BOUNDS);
EXPECT_V4_EQ(HMM_MulM4V4(projection, minCorner), HMM_V4(-1.0f, -1.0f, 0.0f, 1.0f));
EXPECT_V4_EQ(HMM_MulM4V4(projection, maxCorner), HMM_V4(1.0f, 1.0f, 1.0f, 1.0f));
}
}
{
HMM_Mat4 projection = HMM_Orthographic_LH_NO(-10.0f, 10.0f, -5.0f, 5.0f, 1.0f, -10.0f);
HMM_Vec4 original = HMM_V4(5.0f, 5.0f, 1.0f, 1.0);
HMM_Vec4 projected = HMM_MulM4V4(projection, original);
EXPECT_FLOAT_EQ(projected.X, 0.5f);
EXPECT_FLOAT_EQ(projected.Y, 1.0f);
EXPECT_FLOAT_EQ(projected.Z, -1.0f);
EXPECT_FLOAT_EQ(projected.W, 1.0f);
/* Z0 */
projection = HMM_Orthographic_LH_ZO(-10.0f, 10.0f, -5.0f, 5.0f, 1.0f, -10.0f);
projected = HMM_MulM4V4(projection, original);
EXPECT_FLOAT_EQ(projected.Z, 0.0f);
// Left-handed
{
// Near and far distances correspond to positive Z, hence the Z coordinates here are positive.
HMM_Vec4 minCorner = HMM_V4(-8.0f, 5.0f, 1.0f, 1.0);
HMM_Vec4 maxCorner = HMM_V4(12.0f, 10.0f, 100.0f, 1.0);
// Z from -1 to 1 (GL convention)
{
HMM_Mat4 projection = HMM_Orthographic_LH_NO(ORTHO_BOUNDS);
EXPECT_V4_EQ(HMM_MulM4V4(projection, minCorner), HMM_V4(-1.0f, -1.0f, -1.0f, 1.0f));
EXPECT_V4_EQ(HMM_MulM4V4(projection, maxCorner), HMM_V4(1.0f, 1.0f, 1.0f, 1.0f));
}
// Z from 0 to 1 (DX convention)
{
HMM_Mat4 projection = HMM_Orthographic_LH_ZO(ORTHO_BOUNDS);
EXPECT_V4_EQ(HMM_MulM4V4(projection, minCorner), HMM_V4(-1.0f, -1.0f, 0.0f, 1.0f));
EXPECT_V4_EQ(HMM_MulM4V4(projection, maxCorner), HMM_V4(1.0f, 1.0f, 1.0f, 1.0f));
}
}
}
TEST(Projection, Perspective)
{
// Right-handed
{
HMM_Mat4 projection = HMM_Perspective_RH_NO(HMM_AngleDeg(90.0f), 2.0f, 1.0f, 15.0f);
HMM_Vec4 original = HMM_V4(5.0f, 5.0f, -1.0f, 1.0f);
HMM_Vec4 projected = HMM_MulM4V4(projection, original);
EXPECT_FLOAT_EQ(projected.X, 2.5f);
EXPECT_FLOAT_EQ(projected.Y, 5.0f);
EXPECT_FLOAT_EQ(projected.Z, -1.0f);
EXPECT_FLOAT_EQ(projected.W, 1.0f);
// Z from -1 to 1 (GL convention)
{
HMM_Mat4 projection = HMM_Perspective_RH_NO(HMM_AngleDeg(90.0f), 2.0f, 1.0f, 15.0f);
HMM_Vec4 original = HMM_V4(5.0f, 5.0f, -1.0f, 1.0f);
EXPECT_V4_EQ(HMM_MulM4V4(projection, original), HMM_V4(2.5f, 5.0f, -1.0f, 1.0f));
}
/* ZO */
projection = HMM_Perspective_RH_ZO(HMM_AngleDeg(90.0f), 2.0f, 1.0f, 15.0f);
projected = HMM_MulM4V4(projection, original);
EXPECT_FLOAT_EQ(projected.Z, 0.0f);
// Z from 0 to 1 (DX convention)
{
HMM_Mat4 projection = HMM_Perspective_RH_ZO(HMM_AngleDeg(90.0f), 2.0f, 1.0f, 15.0f);
HMM_Vec4 original = HMM_V4(5.0f, 5.0f, -1.0f, 1.0f);
EXPECT_V4_EQ(HMM_MulM4V4(projection, original), HMM_V4(2.5f, 5.0f, 0.0f, 1.0f));
}
}
// Left-handed
{
HMM_Mat4 projection = HMM_Perspective_LH_NO(HMM_AngleDeg(90.0f), 2.0f, 1.0f, 15.0f);
HMM_Vec4 original = HMM_V4(5.0f, 5.0f, 1.0f, 1.0f);
HMM_Vec4 projected = HMM_MulM4V4(projection, original);
EXPECT_FLOAT_EQ(projected.X, 2.5f);
EXPECT_FLOAT_EQ(projected.Y, 5.0f);
EXPECT_FLOAT_EQ(projected.Z, -1.0f);
EXPECT_FLOAT_EQ(projected.W, 1.0f);
/* ZO */
projection = HMM_Perspective_LH_ZO(HMM_AngleDeg(90.0f), 2.0f, 1.0f, 15.0f);
projected = HMM_MulM4V4(projection, original);
EXPECT_FLOAT_EQ(projected.Z, 0.0f);
// Z from -1 to 1 (GL convention)
{
HMM_Mat4 projection = HMM_Perspective_LH_NO(HMM_AngleDeg(90.0f), 2.0f, 1.0f, 15.0f);
HMM_Vec4 original = HMM_V4(5.0f, 5.0f, 1.0f, 1.0f);
EXPECT_V4_EQ(HMM_MulM4V4(projection, original), HMM_V4(2.5f, 5.0f, -1.0f, 1.0f));
}
// Z from 0 to 1 (DX convention)
{
HMM_Mat4 projection = HMM_Perspective_LH_ZO(HMM_AngleDeg(90.0f), 2.0f, 1.0f, 15.0f);
HMM_Vec4 original = HMM_V4(5.0f, 5.0f, 1.0f, 1.0f);
EXPECT_V4_EQ(HMM_MulM4V4(projection, original), HMM_V4(2.5f, 5.0f, 0.0f, 1.0f));
}
}
}