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Add tests for projection

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(Zak should review)
This commit is contained in:
Ben Visness
2016-08-28 23:07:59 -05:00
parent 7f7fc4e0d6
commit 3b0c8befbb
1 changed files with 35 additions and 0 deletions
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35
test/hmm_test.cpp
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@@ -1236,6 +1236,41 @@ TEST(Division, Mat4Scalar)
EXPECT_FLOAT_EQ(m4.Elements[3][3], 8.0f);
}
TEST(Projection, Orthographic)
{
hmm_mat4 projection = HMM_Orthographic(-10.0f, 10.0f, -5.0f, 5.0f, 0.0f, -10.0f);
hmm_vec3 original = HMM_Vec3(5.0f, 5.0f, -5.0f);
hmm_vec4 projected = projection * HMM_Vec4v(original, 1);
EXPECT_FLOAT_EQ(projected.X, 0.5f);
EXPECT_FLOAT_EQ(projected.Y, 1.0f);
EXPECT_FLOAT_EQ(projected.Z, -2.0f);
EXPECT_FLOAT_EQ(projected.W, 1.0f);
}
TEST(Projection, Perspective)
{
hmm_mat4 projection = HMM_Perspective(90.0f, 2.0f, 5.0f, 15.0f);
{
hmm_vec3 original = HMM_Vec3(5.0f, 5.0f, -15.0f);
hmm_vec4 projected = projection * HMM_Vec4v(original, 1);
EXPECT_FLOAT_EQ(projected.X, 5.0f);
EXPECT_FLOAT_EQ(projected.Y, 10.0f);
EXPECT_FLOAT_EQ(projected.Z, 15.0f);
EXPECT_FLOAT_EQ(projected.W, 15.0f);
}
{
hmm_vec3 original = HMM_Vec3(5.0f, 5.0f, -5.0f);
hmm_vec4 projected = projection * HMM_Vec4v(original, 1);
EXPECT_FLOAT_EQ(projected.X, 5.0f);
EXPECT_FLOAT_EQ(projected.Y, 10.0f);
EXPECT_FLOAT_EQ(projected.Z, -5.0f);
EXPECT_FLOAT_EQ(projected.W, 5.0f);
}
}
TEST(Transformations, Translate)
{
hmm_mat4 translate = HMM_Translate(HMM_Vec3(1.0f, -3.0f, 6.0f));