static void make_transform_matrix(
int transform_order, int rotate_order,
double tx, double ty, double tz,
double rx, double ry, double rz,
double sx, double sy, double sz,
double *transform)
{
int i;
double T[16], R[16], S[16], RX[16], RY[16], RZ[16];
double *queue[3];
MatTranslate(T, tx, ty, tz);
MatRotateX(RX, rx);
MatRotateY(RY, ry);
MatRotateZ(RZ, rz);
MatScale(S, sx, sy, sz);
switch (rotate_order) {
case ORDER_XYZ: VEC3_SET(queue, RX, RY, RZ); break;
case ORDER_XZY: VEC3_SET(queue, RX, RZ, RY); break;
case ORDER_YXZ: VEC3_SET(queue, RY, RX, RZ); break;
case ORDER_YZX: VEC3_SET(queue, RY, RZ, RX); break;
case ORDER_ZXY: VEC3_SET(queue, RZ, RX, RY); break;
case ORDER_ZYX: VEC3_SET(queue, RZ, RY, RX); break;
default:
assert(!"invalid rotate order");
break;
}
MatIdentity(R);
for (i = 0; i < 3; i++)
MatMultiply(R, queue[i], R);
switch (transform_order) {
case ORDER_SRT: VEC3_SET(queue, S, R, T); break;
case ORDER_STR: VEC3_SET(queue, S, T, R); break;
case ORDER_RST: VEC3_SET(queue, R, S, T); break;
case ORDER_RTS: VEC3_SET(queue, R, T, S); break;
case ORDER_TRS: VEC3_SET(queue, T, R, S); break;
case ORDER_TSR: VEC3_SET(queue, T, S, R); break;
default:
assert(!"invalid transform order order");
break;
}
MatIdentity(transform);
for (i = 0; i < 3; i++)
MatMultiply(transform, queue[i], transform);
}
/*
*---------------------------------------------------------
* Compute a rotation matrix around an arbitrary axis
* specified by 2 points p1 and p2; theta is the angle
* between the two planes that share the same edge
* defined by p1 and p2
*---------------------------------------------------------
*/
int MxRotateAxisAlain(Point3D p1, Point3D p2, double theta, Matrix4 *TM, Matrix4 *iTM)
{
Point3D p;
double dist, cosX, sinX, cosY, sinY;
Matrix4 m1, m2, Identity;
loadIdentity( &Identity );
p.x = p2.x - p1.x;
p.y = p2.y - p1.y;
p.z = p2.z - p1.z;
if( V3Length( &p ) < 0.0 ) return(FALSE);
dist = sqrt( p.y * p.y + p.z * p.z );
if(dist < DAMN_SMALL){
cosX = 1.0;
sinX = 0.0;
}
else{
cosX = p.z / dist;
sinX = -p.y / dist;
}
cosY = dist;
sinY = -p.x;
loadIdentity( TM );
TM->element[3][0] = -p1.x;
TM->element[3][1] = -p1.y;
TM->element[3][2] = -p1.z;
MatrixCopy( TM, &m1);
loadIdentity( &m2 );
m2.element[1][1] = cosX;
m2.element[2][1] = sinX;
m2.element[1][2] = -sinX;
m2.element[2][2] = cosX;
MatMul( &m1, &m2, TM );
MatrixCopy( TM, &m1 );
loadIdentity( &m2 );
m2.element[0][0] = cosY;
m2.element[2][0] = sinY;
m2.element[0][2] = -sinY;
m2.element[2][2] = cosY;
MatMul( &m1, &m2, TM );
MatrixCopy( TM, &m1 );
MatRotateZ( theta, &m2 );
MatMul( &m1, &m2, TM );
MatrixCopy( TM, &m1 );
loadIdentity( &m2 );
m2.element[0][0] = cosY;
m2.element[2][0] = -sinY;
m2.element[0][2] = sinY;
m2.element[2][2] = cosY;
MatMul( &m1, &m2, TM );
MatrixCopy( TM, &m1 );
loadIdentity( &m2 );
m2.element[1][1] = cosX;
m2.element[2][1] = -sinX;
m2.element[1][2] = sinX;
m2.element[2][2] = cosX;
MatMul( &m1, &m2, TM );
MatrixCopy( TM, &m1 );
loadIdentity( &m2 );
m2.element[3][0] = p1.x;
m2.element[3][1] = p1.y;
m2.element[3][2] = p1.z;
MatMul( &m1, &m2, TM );
return( MxInvert(TM, iTM) );
}
int main(int argc,char **argv)
{
// initialize generator
InitTexgen();
// colors
Pixel black,white;
black.Init(0,0,0,255);
white.Init(255,255,255,255);
timeBeginPeriod(1);
sInt startTime = timeGetTime();
for(sInt i=0;i<100;i++)
{
// create gradients
GenTexture gradBW = LinearGradient(0xff000000,0xffffffff);
GenTexture gradWB = LinearGradient(0xffffffff,0xff000000);
GenTexture gradWhite = LinearGradient(0xffffffff,0xffffffff);
// simple noise test texture
GenTexture noise;
noise.Init(256,256);
noise.Noise(gradBW,2,2,6,0.5f,123,GenTexture::NoiseDirect|GenTexture::NoiseBandlimit|GenTexture::NoiseNormalize);
/*// save test image
if(!SaveImage(noise,"noise.tga"))
{
printf("Couldn't write 'noise.tga'!\n");
return 1;
}*/
// 4 "random voronoi" textures with different minimum distances
GenTexture voro[4];
static sInt voroIntens[4] = { 37, 42, 37, 37 };
static sInt voroCount[4] = { 90, 132, 240, 255 };
static sF32 voroDist[4] = { 0.125f, 0.063f, 0.063f, 0.063f };
for(sInt i=0;i<4;i++)
{
voro[i].Init(256,256);
RandomVoronoi(voro[i],gradWhite,voroIntens[i],voroCount[i],voroDist[i]);
}
// linear combination of them
LinearInput inputs[4];
for(sInt i=0;i<4;i++)
{
inputs[i].Tex = &voro[i];
inputs[i].Weight = 1.5f;
inputs[i].UShift = 0.0f;
inputs[i].VShift = 0.0f;
inputs[i].FilterMode = GenTexture::WrapU|GenTexture::WrapV|GenTexture::FilterNearest;
}
GenTexture baseTex;
baseTex.Init(256,256);
baseTex.LinearCombine(black,0.0f,inputs,4);
// blur it
baseTex.Blur(baseTex,0.0074f,0.0074f,1,GenTexture::WrapU|GenTexture::WrapV);
// add a noise layer
GenTexture noiseLayer;
noiseLayer.Init(256,256);
noiseLayer.Noise(LinearGradient(0xff000000,0xff646464),4,4,5,0.995f,3,GenTexture::NoiseDirect|GenTexture::NoiseNormalize|GenTexture::NoiseBandlimit);
baseTex.Paste(baseTex,noiseLayer,0.0f,0.0f,1.0f,0.0f,0.0f,1.0f,GenTexture::CombineAdd,0);
// colorize it
Colorize(baseTex,0xff747d8e,0xfff1feff);
// Create transform matrix for grid pattern
Matrix44 m1,m2,m3;
MatTranslate(m1,-0.5f,-0.5f,0.0f);
MatScale(m2,3.0f * sSQRT2F,3.0f * sSQRT2F,1.0f);
MatMult(m3,m2,m1);
MatRotateZ(m1,0.125f * sPI2F);
MatMult(m2,m1,m3);
MatTranslate(m1,0.5f,0.5f,0.0f);
MatMult(m3,m1,m2);
// Grid pattern GlowRect
GenTexture rect1,rect1x,rect1n;
rect1.Init(256,256);
rect1.LinearCombine(black,1.0f,0,0); // black background
rect1.GlowRect(rect1,gradWB,0.5f,0.5f,0.41f,0.0f,0.0f,0.25f,0.7805f,0.64f);
rect1x.Init(256,256);
rect1x.CoordMatrixTransform(rect1,m3,GenTexture::WrapU|GenTexture::WrapV|GenTexture::FilterBilinear);
// Make a normalmap from it
rect1n.Init(256,256);
rect1n.Derive(rect1x,GenTexture::DeriveNormals,2.5f);
// Apply as bump map
GenTexture finalTex;
Pixel amb,diff;
finalTex.Init(256,256);
amb.Init(0xff101010);
diff.Init(0xffffffff);
finalTex.Bump(baseTex,rect1n,0,0,0.0f,0.0f,0.0f,-2.518f,0.719f,-3.10f,amb,diff,sTRUE);
// Second grid pattern GlowRect
GenTexture rect2,rect2x;
rect2.Init(256,256);
rect2.LinearCombine(white,1.0f,0,0); // white background
rect2.GlowRect(rect2,gradBW,0.5f,0.5f,0.36f,0.0f,0.0f,0.20f,0.8805f,0.74f);
rect2x.Init(256,256);
rect2x.CoordMatrixTransform(rect2,m3,GenTexture::WrapU|GenTexture::WrapV|GenTexture::FilterBilinear);
// Multiply it over
finalTex.Paste(finalTex,rect2x,0.0f,0.0f,1.0f,0.0f,0.0f,1.0f,GenTexture::CombineMultiply,0);
}
sInt totalTime = timeGetTime() - startTime;
timeEndPeriod(1);
printf("%d ms/tex\n",totalTime / 100);
/*SaveImage(baseTex,"baseTex.tga");
SaveImage(finalTex,"final.tga");*/
return 0;
}