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Various changes, and started work on Quaternions

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This commit is contained in:
Zak Strange
2016-12-05 00:25:22 -07:00
parent c89c435e3a
commit 154eecb749
1 changed files with 60 additions and 11 deletions
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71
HandmadeMath.h
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@@ -354,6 +354,25 @@ typedef union hmm_vec4
float Elements[4];
} hmm_vec4;
typedef struct hmm_quaternion
{
struct
{
union
{
hmm_vec3 XYZ;
struct
{
float X, Y, Z;
};
};
float W;
};
float Elements[4];
} hmm_quaternion;
typedef union hmm_mat4
{
float Elements[4][4];
@@ -447,6 +466,9 @@ HMMDEF hmm_mat4 HMM_Scale(hmm_vec3 Scale);
HMMDEF hmm_mat4 HMM_LookAt(hmm_vec3 Eye, hmm_vec3 Center, hmm_vec3 Up);
HMMDEF hmm_quaternion HMM_Quaternion(float X, float Y, float Z, float W);
HMMDEF hmm_quaternion HMM_QuaternionV4(hmm_vec4 Vector);
#ifdef __cplusplus
}
#endif
@@ -1205,7 +1227,7 @@ HMM_SubtractMat4(hmm_mat4 Left, hmm_mat4 Right)
return (Result);
}
hmm_mat4
HINLINE hmm_mat4
HMM_MultiplyMat4(hmm_mat4 Left, hmm_mat4 Right)
{
hmm_mat4 Result = HMM_Mat4();
@@ -1230,7 +1252,7 @@ HMM_MultiplyMat4(hmm_mat4 Left, hmm_mat4 Right)
return (Result);
}
hmm_mat4
HINLINE hmm_mat4
HMM_MultiplyMat4f(hmm_mat4 Matrix, float Scalar)
{
hmm_mat4 Result = HMM_Mat4();
@@ -1248,7 +1270,7 @@ HMM_MultiplyMat4f(hmm_mat4 Matrix, float Scalar)
return (Result);
}
hmm_vec4
HINLINE hmm_vec4
HMM_MultiplyMat4ByVec4(hmm_mat4 Matrix, hmm_vec4 Vector)
{
hmm_vec4 Result = {0};
@@ -1268,7 +1290,7 @@ HMM_MultiplyMat4ByVec4(hmm_mat4 Matrix, hmm_vec4 Vector)
return (Result);
}
hmm_mat4
HINLINE hmm_mat4
HMM_DivideMat4f(hmm_mat4 Matrix, float Scalar)
{
hmm_mat4 Result = HMM_Mat4();
@@ -1286,7 +1308,7 @@ HMM_DivideMat4f(hmm_mat4 Matrix, float Scalar)
return (Result);
}
hmm_mat4
HINLINE hmm_mat4
HMM_Transpose(hmm_mat4 Matrix)
{
hmm_mat4 Result = HMM_Mat4();
@@ -1304,7 +1326,7 @@ HMM_Transpose(hmm_mat4 Matrix)
return (Result);
}
hmm_mat4
HINLINE hmm_mat4
HMM_Orthographic(float Left, float Right, float Bottom, float Top, float Near, float Far)
{
hmm_mat4 Result = HMM_Mat4d(1.0f);
@@ -1320,7 +1342,7 @@ HMM_Orthographic(float Left, float Right, float Bottom, float Top, float Near, f
return (Result);
}
hmm_mat4
HINLINE hmm_mat4
HMM_Perspective(float FOV, float AspectRatio, float Near, float Far)
{
hmm_mat4 Result = HMM_Mat4d(1.0f);
@@ -1337,7 +1359,7 @@ HMM_Perspective(float FOV, float AspectRatio, float Near, float Far)
return (Result);
}
hmm_mat4
HINLINE hmm_mat4
HMM_Translate(hmm_vec3 Translation)
{
hmm_mat4 Result = HMM_Mat4d(1.0f);
@@ -1349,7 +1371,7 @@ HMM_Translate(hmm_vec3 Translation)
return (Result);
}
hmm_mat4
HINLINE hmm_mat4
HMM_Rotate(float Angle, hmm_vec3 Axis)
{
hmm_mat4 Result = HMM_Mat4d(1.0f);
@@ -1375,7 +1397,7 @@ HMM_Rotate(float Angle, hmm_vec3 Axis)
return (Result);
}
hmm_mat4
HINLINE hmm_mat4
HMM_Scale(hmm_vec3 Scale)
{
hmm_mat4 Result = HMM_Mat4d(1.0f);
@@ -1387,7 +1409,7 @@ HMM_Scale(hmm_vec3 Scale)
return (Result);
}
hmm_mat4
HINLINE hmm_mat4
HMM_LookAt(hmm_vec3 Eye, hmm_vec3 Center, hmm_vec3 Up)
{
hmm_mat4 Result = {0};
@@ -1416,6 +1438,33 @@ HMM_LookAt(hmm_vec3 Eye, hmm_vec3 Center, hmm_vec3 Up)
return (Result);
}
HMMDEF hmm_quaternion
HMM_Quaternion(float X, float Y, float Z, float W)
{
hmm_quaternion Result = {0};
Result.X = X;
Result.Y = Y;
Result.Z = Z;
Result.W = W;
return(Result);
}
HINLINE hmm_quaternion
HMM_QuaternionV4(hmm_vec4 Vector)
{
hmm_quaternion Result = {0};
Result.X = Vector.X;
Result.Y = Vector.Y;
Result.Z = Vector.Z;
Result.W = Vector.W;
return(Result);
}
#ifdef HANDMADE_MATH_CPP_MODE
HMMDEF float