public class FloatUtil extends Object
Implementation assumes linear matrix layout in column-major order matching OpenGL's implementation.
Derived from ProjectFloat.java - Created 11-jan-2004
Constructor and Description |
---|
FloatUtil() |
Modifier and Type | Method and Description |
---|---|
static void |
cross(float[] v1,
float[] v2,
float[] result)
Calculate cross-product of 2 vector
|
static void |
cross(FloatBuffer v1,
FloatBuffer v2,
FloatBuffer result)
Calculate cross-product of 2 vector
|
static void |
makeIdentityf(float[] m,
int offset)
Make matrix an identity matrix
|
static void |
makeIdentityf(FloatBuffer m)
Make matrix an identity matrix
|
static void |
makeZero(float[] m,
int offset)
Make matrix an zero matrix
|
static void |
makeZero(FloatBuffer m)
Make matrix an zero matrix
|
static void |
multMatrixf(float[] a,
int a_off,
float[] b,
int b_off,
float[] d,
int d_off) |
static void |
multMatrixf(float[] a,
int a_off,
float[] b,
int b_off,
FloatBuffer d) |
static void |
multMatrixf(FloatBuffer a,
float[] b,
int b_off,
FloatBuffer d) |
static void |
multMatrixf(FloatBuffer a,
FloatBuffer b,
FloatBuffer d) |
static void |
multMatrixVecf(float[] m_in,
float[] v_in,
float[] v_out) |
static void |
multMatrixVecf(float[] m_in,
int m_in_off,
float[] v_in,
int v_in_off,
float[] v_out) |
static void |
multMatrixVecf(FloatBuffer m_in,
FloatBuffer v_in,
FloatBuffer v_out) |
static void |
normalize(float[] v)
Normalize vector
|
static void |
normalize(FloatBuffer v)
Normalize vector
|
public static final void makeIdentityf(float[] m, int offset)
public static final void makeIdentityf(FloatBuffer m)
public static final void makeZero(float[] m, int offset)
public static final void makeZero(FloatBuffer m)
public static final void multMatrixf(float[] a, int a_off, float[] b, int b_off, float[] d, int d_off)
a
- 4x4 matrix in column-major orderb
- 4x4 matrix in column-major orderd
- result a*b in column-major orderpublic static final void multMatrixf(float[] a, int a_off, float[] b, int b_off, FloatBuffer d)
a
- 4x4 matrix in column-major orderb
- 4x4 matrix in column-major orderd
- result a*b in column-major orderpublic static final void multMatrixf(FloatBuffer a, float[] b, int b_off, FloatBuffer d)
a
- 4x4 matrix in column-major orderb
- 4x4 matrix in column-major orderd
- result a*b in column-major orderpublic static final void multMatrixf(FloatBuffer a, FloatBuffer b, FloatBuffer d)
a
- 4x4 matrix in column-major orderb
- 4x4 matrix in column-major orderd
- result a*b in column-major orderpublic static final void normalize(float[] v)
v
- makes len(v)==1public static final void normalize(FloatBuffer v)
v
- makes len(v)==1public static final void cross(float[] v1, float[] v2, float[] result)
v1
- 3-component vectorv2
- 3-component vectorresult
- v1 X v2public static final void cross(FloatBuffer v1, FloatBuffer v2, FloatBuffer result)
v1
- 3-component vectorv2
- 3-component vectorresult
- v1 X v2public static final void multMatrixVecf(float[] m_in, int m_in_off, float[] v_in, int v_in_off, float[] v_out)
m_in
- 4x4 matrix in column-major orderm_in_off
- v_in
- 4-component column-vectorv_out
- m_in * v_inpublic static final void multMatrixVecf(float[] m_in, float[] v_in, float[] v_out)
m_in
- 4x4 matrix in column-major orderm_in_off
- v_in
- 4-component column-vectorv_out
- m_in * v_inpublic static final void multMatrixVecf(FloatBuffer m_in, FloatBuffer v_in, FloatBuffer v_out)
m_in
- 4x4 matrix in column-major orderv_in
- 4-component column-vectorv_out
- m_in * v_inCopyright 2010 JogAmp Community.