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First attempt at Mat4 to Quaternion (might have rows and columns swapped?)

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Ben Visness
2018-06-20 12:57:17 +02:00
parent 850efa3606
commit eedda7ca4c
4 changed files with 102 additions and 47 deletions
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56
test/categories/MatrixOps.h Normal file
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@@ -0,0 +1,56 @@
#include "../HandmadeTest.h"
TEST(MatrixOps, Transpose)
{
hmm_mat4 m4 = HMM_Mat4(); // will have 1 - 16
// Fill the matrix
int Counter = 1;
for (int Column = 0; Column < 4; ++Column)
{
for (int Row = 0; Row < 4; ++Row)
{
m4.Elements[Column][Row] = Counter;
++Counter;
}
}
// Test the matrix
hmm_mat4 result = HMM_Transpose(m4);
EXPECT_FLOAT_EQ(result.Elements[0][0], 1.0f);
EXPECT_FLOAT_EQ(result.Elements[0][1], 5.0f);
EXPECT_FLOAT_EQ(result.Elements[0][2], 9.0f);
EXPECT_FLOAT_EQ(result.Elements[0][3], 13.0f);
EXPECT_FLOAT_EQ(result.Elements[1][0], 2.0f);
EXPECT_FLOAT_EQ(result.Elements[1][1], 6.0f);
EXPECT_FLOAT_EQ(result.Elements[1][2], 10.0f);
EXPECT_FLOAT_EQ(result.Elements[1][3], 14.0f);
EXPECT_FLOAT_EQ(result.Elements[2][0], 3.0f);
EXPECT_FLOAT_EQ(result.Elements[2][1], 7.0f);
EXPECT_FLOAT_EQ(result.Elements[2][2], 11.0f);
EXPECT_FLOAT_EQ(result.Elements[2][3], 15.0f);
EXPECT_FLOAT_EQ(result.Elements[3][0], 4.0f);
EXPECT_FLOAT_EQ(result.Elements[3][1], 8.0f);
EXPECT_FLOAT_EQ(result.Elements[3][2], 12.0f);
EXPECT_FLOAT_EQ(result.Elements[3][3], 16.0f);
}
TEST(MatrixOps, ToQuaternion)
{
hmm_mat4 rotateY = {
0.0f, 0.0f, -1.0f, 0.0f, // first column (X)
0.0f, 1.0f, 0.0f, 0.0f, // second column (Y)
1.0f, 0.0f, 0.0f, 0.0f, // third column (Z)
0.0f, 0.0f, 0.0f, 1.0f
};
hmm_quaternion expected = HMM_QuaternionFromAxisAngle(HMM_Vec3(0.0f, 1.0f, 0.0f), HMM_ToRadians(90.0f));
hmm_quaternion actualResult = HMM_Mat4ToQuaternion(rotateY);
printf("%f %f %f %f\n", expected.X, expected.Y, expected.Z, expected.W);
EXPECT_FLOAT_EQ(actualResult.X, expected.X);
EXPECT_FLOAT_EQ(actualResult.Y, expected.Y);
EXPECT_FLOAT_EQ(actualResult.Z, expected.Z);
EXPECT_FLOAT_EQ(actualResult.W, expected.W);
}

40
test/categories/VectorOps.h
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@@ -178,43 +178,3 @@ TEST(VectorOps, DotVec4)
EXPECT_FLOAT_EQ(HMM_Dot(v1, v2), 70.0f);
#endif
}
/*
* MatrixOps tests
*/
TEST(MatrixOps, Transpose)
{
hmm_mat4 m4 = HMM_Mat4(); // will have 1 - 16
// Fill the matrix
int Counter = 1;
for (int Column = 0; Column < 4; ++Column)
{
for (int Row = 0; Row < 4; ++Row)
{
m4.Elements[Column][Row] = Counter;
++Counter;
}
}
// Test the matrix
hmm_mat4 result = HMM_Transpose(m4);
EXPECT_FLOAT_EQ(result.Elements[0][0], 1.0f);
EXPECT_FLOAT_EQ(result.Elements[0][1], 5.0f);
EXPECT_FLOAT_EQ(result.Elements[0][2], 9.0f);
EXPECT_FLOAT_EQ(result.Elements[0][3], 13.0f);
EXPECT_FLOAT_EQ(result.Elements[1][0], 2.0f);
EXPECT_FLOAT_EQ(result.Elements[1][1], 6.0f);
EXPECT_FLOAT_EQ(result.Elements[1][2], 10.0f);
EXPECT_FLOAT_EQ(result.Elements[1][3], 14.0f);
EXPECT_FLOAT_EQ(result.Elements[2][0], 3.0f);
EXPECT_FLOAT_EQ(result.Elements[2][1], 7.0f);
EXPECT_FLOAT_EQ(result.Elements[2][2], 11.0f);
EXPECT_FLOAT_EQ(result.Elements[2][3], 15.0f);
EXPECT_FLOAT_EQ(result.Elements[3][0], 4.0f);
EXPECT_FLOAT_EQ(result.Elements[3][1], 8.0f);
EXPECT_FLOAT_EQ(result.Elements[3][2], 12.0f);
EXPECT_FLOAT_EQ(result.Elements[3][3], 16.0f);
}