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Fix mat4 lookat, add translate[3f|v3]

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This commit is contained in:
Doyle Thai 2017-07-16 20:47:49 +10:00
parent be0b84a244
commit d2ebb53322
2 changed files with 23 additions and 25 deletions
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35
dqn.h
View File

@ -885,7 +885,8 @@ DQN_FILE_SCOPE DqnMat4 DqnMat4_Orthographic(f32 left, f32 right, f32 bottom, f32
DQN_FILE_SCOPE DqnMat4 DqnMat4_Perspective (f32 fovYDegrees, f32 aspectRatio, f32 zNear, f32 zFar);
DQN_FILE_SCOPE DqnMat4 DqnMat4_LookAt (DqnV3 eye, DqnV3 center, DqnV3 up);
DQN_FILE_SCOPE DqnMat4 DqnMat4_Translate (f32 x, f32 y, f32 z);
DQN_FILE_SCOPE DqnMat4 DqnMat4_Translate3f (f32 x, f32 y, f32 z);
DQN_FILE_SCOPE DqnMat4 DqnMat4_TranslateV3 (DqnV3 vec);
DQN_FILE_SCOPE DqnMat4 DqnMat4_Rotate (f32 radians, f32 x, f32 y, f32 z);
DQN_FILE_SCOPE DqnMat4 DqnMat4_Scale (f32 x, f32 y, f32 z);
DQN_FILE_SCOPE DqnMat4 DqnMat4_ScaleV3 (DqnV3 scale);
@ -1933,7 +1934,7 @@ DQN_FILE_SCOPE bool DqnAssertInternal(const bool result, const char *const file,
const char *const formatStrWithMsg = "DqnAssert() failed: %s|%d| (%s): %s\n";
const char *const formatStr = (msg) ? formatStrWithMsg : formatStrNoMsg;
char userMsg[512] = {};
char userMsg[2048] = {};
if (msg)
{
va_list argList;
@ -3117,24 +3118,24 @@ DQN_FILE_SCOPE DqnMat4 DqnMat4_LookAt(DqnV3 eye, DqnV3 center, DqnV3 up)
result.e[0][0] = s.x;
result.e[0][1] = u.x;
result.e[0][2] = f.x;
result.e[0][2] = -f.x;
result.e[1][0] = s.y;
result.e[1][1] = u.y;
result.e[1][2] = f.y;
result.e[1][2] = -f.y;
result.e[2][0] = s.z;
result.e[2][1] = u.z;
result.e[2][2] = f.z;
result.e[2][2] = -f.z;
result.e[3][0] = DqnV3_Dot(s, eye);
result.e[3][1] = DqnV3_Dot(u, eye);
result.e[3][2] = -DqnV3_Dot(f, eye);
result.e[3][0] = -DqnV3_Dot(s, eye);
result.e[3][1] = -DqnV3_Dot(u, eye);
result.e[3][2] = DqnV3_Dot(f, eye);
result.e[3][3] = 1.0f;
return result;
}
DQN_FILE_SCOPE DqnMat4 DqnMat4_Translate(f32 x, f32 y, f32 z)
DQN_FILE_SCOPE DqnMat4 DqnMat4_Translate3f(f32 x, f32 y, f32 z)
{
DqnMat4 result = DqnMat4_Identity();
result.e[3][0] = x;
@ -3143,6 +3144,15 @@ DQN_FILE_SCOPE DqnMat4 DqnMat4_Translate(f32 x, f32 y, f32 z)
return result;
}
DQN_FILE_SCOPE DqnMat4 DqnMat4_TranslateV3(DqnV3 vec)
{
DqnMat4 result = DqnMat4_Identity();
result.e[3][0] = vec.x;
result.e[3][1] = vec.y;
result.e[3][2] = vec.z;
return result;
}
DQN_FILE_SCOPE DqnMat4 DqnMat4_Rotate(f32 radians, f32 x, f32 y, f32 z)
{
DqnMat4 result = DqnMat4_Identity();
@ -6169,7 +6179,6 @@ DQN_FILE_SCOPE char **DqnDirInternal_PlatformRead(const char *const dir,
// TODO(doyle): Logging
DQN_ASSERT(DQN_INVALID_CODE_PATH);
*numFiles = 0;
closedir(dirHandle);
return NULL;
}
@ -6184,7 +6193,6 @@ DQN_FILE_SCOPE char **DqnDirInternal_PlatformRead(const char *const dir,
// TODO(doyle): Logging
*numFiles = 0;
closedir(dirHandle);
return NULL;
}
}
@ -7117,9 +7125,10 @@ DQN_FILE_SCOPE void DqnWin32_DisplayLastError(const char *const errorPrefix)
}
}
const i32 DQN_WIN32_INTERNAL_ERROR_MSG_SIZE = 2048;
DQN_FILE_SCOPE void DqnWin32_DisplayErrorCode(const DWORD error, const char *const errorPrefix)
{
char errorMsg[1024] = {0};
char errorMsg[DQN_WIN32_INTERNAL_ERROR_MSG_SIZE] = {0};
FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, error, 0, errorMsg, DQN_ARRAY_COUNT(errorMsg), NULL);
@ -7130,7 +7139,7 @@ DQN_FILE_SCOPE void DqnWin32_DisplayErrorCode(const DWORD error, const char *con
DQN_FILE_SCOPE void DqnWin32_OutputDebugString(const char *const formatStr, ...)
{
char str[1024] = {0};
char str[DQN_WIN32_INTERNAL_ERROR_MSG_SIZE] = {0};
va_list argList;
va_start(argList, formatStr);

13
dqn_unit_test.cpp
View File

@ -75,7 +75,7 @@ void HandmadeMathTest()
{
hmm_vec3 hmmVec = HMM_Vec3i(1, 2, 3);
DqnV3 dqnVec = DqnV3_3i(1, 2, 3);
DqnMat4 dqnTranslate = DqnMat4_Translate(dqnVec.x, dqnVec.y, dqnVec.z);
DqnMat4 dqnTranslate = DqnMat4_Translate3f(dqnVec.x, dqnVec.y, dqnVec.z);
hmm_mat4 hmmTranslate = HMM_Translate(hmmVec);
HandmadeMathVerifyMat4(dqnTranslate, hmmTranslate);
@ -116,17 +116,6 @@ void HandmadeMathTest()
printf("HandmadeMathTest(): Translate/Scale/Rotate Mat4_Mul: Completed successfully\n");
}
// Test LookAt/Camera/View matrix returns same results
if (1)
{
DqnMat4 dqnViewMatrix = DqnMat4_LookAt(DqnV3_3f(4, 3, 3), DqnV3_1f(0), DqnV3_3f(0, 1, 0));
hmm_mat4 hmmViewMatrix =
HMM_LookAt(HMM_Vec3(4, 3, 3), HMM_Vec3(0, 0, 0), HMM_Vec3(0, 1, 0));
HandmadeMathVerifyMat4(dqnViewMatrix, hmmViewMatrix);
printf("HandmadeMathTest(): LookAt: Completed successfully\n");
}
}
void StringsTest()