mirror of https://github.com/aap/librw.git
751 lines
18 KiB
C++
751 lines
18 KiB
C++
#include <rw.h>
|
|
#include <skeleton.h>
|
|
|
|
#include <vector>
|
|
|
|
using namespace rw;
|
|
using namespace RWDEVICE;
|
|
|
|
static Im3DVertex im3dVerts[1024];
|
|
static int numImVerts;
|
|
static rw::PrimitiveType imPrim;
|
|
static Im3DVertex imVert;
|
|
|
|
void
|
|
BeginIm3D(rw::PrimitiveType prim)
|
|
{
|
|
numImVerts = 0;
|
|
imPrim = prim;
|
|
}
|
|
|
|
void
|
|
EndIm3D(void)
|
|
{
|
|
rw::im3d::Transform(im3dVerts, numImVerts, nil, rw::im3d::EVERYTHING);
|
|
rw::im3d::RenderPrimitive(imPrim);
|
|
rw::im3d::End();
|
|
}
|
|
|
|
void
|
|
AddVertex(const rw::V3d &vert)
|
|
{
|
|
if(numImVerts >= 1024){
|
|
EndIm3D();
|
|
switch(imPrim){
|
|
case PRIMTYPEPOLYLINE:
|
|
im3dVerts[0] = im3dVerts[numImVerts-1];
|
|
numImVerts = 1;
|
|
break;
|
|
case PRIMTYPETRISTRIP:
|
|
// TODO: winding?
|
|
im3dVerts[0] = im3dVerts[numImVerts-2];
|
|
im3dVerts[1] = im3dVerts[numImVerts-1];
|
|
numImVerts = 2;
|
|
break;
|
|
case PRIMTYPETRIFAN:
|
|
im3dVerts[1] = im3dVerts[numImVerts-1];
|
|
numImVerts = 2;
|
|
break;
|
|
default:
|
|
numImVerts = 0;
|
|
}
|
|
}
|
|
|
|
imVert.setX(vert.x);
|
|
imVert.setY(vert.y);
|
|
imVert.setZ(vert.z);
|
|
im3dVerts[numImVerts++] = imVert;
|
|
}
|
|
|
|
float epsilon = 0.000001;
|
|
|
|
class BezierSurf
|
|
{
|
|
public:
|
|
// hardcoded 4x4 for now
|
|
V3d verts[16];
|
|
|
|
void mirrorX(void);
|
|
void mirrorY(void);
|
|
|
|
V3d eval(float u, float v);
|
|
void drawHull(void);
|
|
void drawShaded(void);
|
|
};
|
|
|
|
class RBCurve
|
|
{
|
|
public:
|
|
int degree;
|
|
std::vector<V3d> verts;
|
|
std::vector<float> weights; // for rational
|
|
std::vector<float> knots;
|
|
|
|
V3d eval(float u);
|
|
void drawHull(void);
|
|
void drawSpline(void);
|
|
};
|
|
|
|
class RBSurf
|
|
{
|
|
public:
|
|
int degreeU, degreeV;
|
|
int numU, numV;
|
|
std::vector<V3d> verts;
|
|
std::vector<float> weights;
|
|
std::vector<float> knotsU, knotsV;
|
|
|
|
void update(void);
|
|
V3d eval(float u, float v);
|
|
void drawHull(void);
|
|
void drawIsoparms(void);
|
|
void drawShaded(void);
|
|
};
|
|
|
|
float div0(float a, float b) { return b == 0.0f ? a : a/b; }
|
|
|
|
// naive algorithm
|
|
float
|
|
evalBasis(int i, int d, float u, float knots[])
|
|
{
|
|
if(d == 0){
|
|
if(knots[i] <= u && u < knots[i+1])
|
|
return 1.0f;
|
|
return 0.0f;
|
|
}
|
|
|
|
float b0 = evalBasis(i, d-1, u, knots);
|
|
float b1 = evalBasis(i+1, d-1, u, knots);
|
|
return b0*div0(u-knots[i], knots[i+d] - knots[i]) + b1*div0(knots[i+d+1]-u, knots[i+d+1] - knots[i+1]);
|
|
}
|
|
|
|
float
|
|
evalBasisFast(int i, int d, float u, float knots[])
|
|
{
|
|
int r, j;
|
|
float tmp[10];
|
|
|
|
// degree 0 values
|
|
for(j = 0; j < d+1; j++)
|
|
tmp[j] = knots[i+j] <= u && u < knots[i+j+1] ? 1.0f : 0.0f;
|
|
|
|
// build up from degree zero
|
|
for(r = d, d = 1; r > 0; r--, d++){
|
|
for(j = 0; j < r; j++){
|
|
float t1 = div0(u-knots[i+j], knots[i+j + d] - knots[i+j]);
|
|
float t2 = div0(knots[i+j + d+1]-u, knots[i+j + d+1] - knots[i+j + 1]);
|
|
tmp[j] = tmp[j]*t1 + tmp[j+1]*t2;
|
|
}
|
|
}
|
|
return tmp[0];
|
|
}
|
|
|
|
void
|
|
BezierSurf::mirrorX(void)
|
|
{
|
|
int i;
|
|
for(i = 0; i < 16; i++)
|
|
verts[i].x = -verts[i].x;
|
|
}
|
|
|
|
void
|
|
BezierSurf::mirrorY(void)
|
|
{
|
|
int i;
|
|
for(i = 0; i < 16; i++)
|
|
verts[i].y = -verts[i].y;
|
|
}
|
|
|
|
V3d
|
|
BezierSurf::eval(float u, float v)
|
|
{
|
|
int i, j;
|
|
V3d out = { 0.0f, 0.0f, 0.0f };
|
|
float us[4], vs[4];
|
|
float iu = 1.0f-u;
|
|
float iv = 1.0f-v;
|
|
us[0] = iu*iu*iu;
|
|
us[1] = 3.0f*u*iu*iu;
|
|
us[2] = 3.0f*u*u*iu;
|
|
us[3] = u*u*u;
|
|
vs[0] = iv*iv*iv;
|
|
vs[1] = 3.0f*v*iv*iv;
|
|
vs[2] = 3.0f*v*v*iv;
|
|
vs[3] = v*v*v;
|
|
for(i = 0; i < 4; i++)
|
|
for(j = 0; j < 4; j++)
|
|
out = add(out, scale(verts[j+i*4],us[j]*vs[i]));
|
|
return out;
|
|
}
|
|
|
|
void
|
|
BezierSurf::drawHull(void)
|
|
{
|
|
rw::SetRenderStatePtr(rw::TEXTURERASTER, nil);
|
|
rw::SetRenderState(rw::FOGENABLE, 0);
|
|
|
|
imVert.setU(0.0f);
|
|
imVert.setV(0.0f);
|
|
imVert.setColor(138, 72, 51, 255);
|
|
// imVert.setColor(228, 172, 121, 255);
|
|
|
|
int iu, iv;
|
|
for(iv = 0; iv < 4; iv++){
|
|
BeginIm3D(rw::PRIMTYPEPOLYLINE);
|
|
for(iu = 0; iu < 4; iu++)
|
|
AddVertex(verts[iu + iv*4]);
|
|
EndIm3D();
|
|
}
|
|
|
|
for(iu = 0; iu < 4; iu++){
|
|
BeginIm3D(rw::PRIMTYPEPOLYLINE);
|
|
for(iv = 0; iv < 4; iv++)
|
|
AddVertex(verts[iu + iv*4]);
|
|
EndIm3D();
|
|
}
|
|
}
|
|
|
|
void
|
|
BezierSurf::drawShaded(void)
|
|
{
|
|
V3d vert;
|
|
int iu, iv;
|
|
float u, v;
|
|
|
|
rw::SetRenderStatePtr(rw::TEXTURERASTER, nil);
|
|
rw::SetRenderState(rw::FOGENABLE, 0);
|
|
|
|
imVert.setU(0.0f);
|
|
imVert.setV(0.0f);
|
|
imVert.setColor(0, 128, 240, 255);
|
|
|
|
float endu = 1.0f - epsilon;
|
|
float endv = 1.0f - epsilon;
|
|
float uinc = (endu-0.0f)/40.0f;
|
|
float vinc = (endv-0.0f)/40.0f;
|
|
|
|
float vnext;
|
|
for(v = 0.0f;; v = vnext){
|
|
if(v > endv)
|
|
v = endv;
|
|
vnext = v + vinc;
|
|
|
|
BeginIm3D(rw::PRIMTYPETRISTRIP);
|
|
for(u = 0.0f;; u += uinc){
|
|
if(u > endu)
|
|
u = endu;
|
|
|
|
AddVertex(eval(u, v));
|
|
AddVertex(eval(u, vnext));
|
|
|
|
if(u >= endu)
|
|
break;
|
|
}
|
|
EndIm3D();
|
|
if(vnext >= endv)
|
|
break;
|
|
}
|
|
}
|
|
|
|
V3d
|
|
RBCurve::eval(float u)
|
|
{
|
|
int i;
|
|
V3d vert = { 0.0f, 0.0f, 0.0f };
|
|
float w = 0.0f;
|
|
|
|
// Find knots we're interested in
|
|
for(i = 0; i < knots.size(); i++)
|
|
if(knots[i] <= u && u < knots[i+1])
|
|
break;
|
|
int startI = i-degree;
|
|
int endI = i+1;
|
|
|
|
for(i = startI; i < endI; i++){
|
|
float r = evalBasisFast(i, degree, u, &knots[0]);
|
|
w += weights[i]*r;
|
|
vert = add(vert, scale(verts[i], weights[i]*r));
|
|
}
|
|
return scale(vert, div0(1.0f,w));
|
|
}
|
|
|
|
void
|
|
RBCurve::drawHull(void)
|
|
{
|
|
int i;
|
|
|
|
rw::SetRenderStatePtr(rw::TEXTURERASTER, nil);
|
|
rw::SetRenderState(rw::FOGENABLE, 0);
|
|
|
|
BeginIm3D(rw::PRIMTYPEPOLYLINE);
|
|
imVert.setU(0.0f);
|
|
imVert.setV(0.0f);
|
|
imVert.setColor(138, 72, 51, 255);
|
|
// imVert.setColor(228, 172, 121, 255);
|
|
for(i = 0; i < verts.size(); i++)
|
|
AddVertex(verts[i]);
|
|
EndIm3D();
|
|
}
|
|
|
|
void
|
|
RBCurve::drawSpline(void)
|
|
{
|
|
int i;
|
|
float u, endu;
|
|
V3d vert;
|
|
|
|
rw::SetRenderStatePtr(rw::TEXTURERASTER, nil);
|
|
rw::SetRenderState(rw::FOGENABLE, 0);
|
|
BeginIm3D(rw::PRIMTYPEPOLYLINE);
|
|
imVert.setU(0.0f);
|
|
imVert.setV(0.0f);
|
|
imVert.setColor(0, 4, 96, 255);
|
|
|
|
u = knots[0];
|
|
endu = knots[knots.size()-1] - epsilon;
|
|
float uinc = (endu-knots[0])/40.0f;
|
|
for(;; u += uinc){
|
|
if(u > endu)
|
|
u = endu;
|
|
AddVertex(eval(u));
|
|
if(u >= endu)
|
|
break;
|
|
}
|
|
|
|
EndIm3D();
|
|
}
|
|
|
|
void
|
|
RBSurf::update(void)
|
|
{
|
|
numU = knotsU.size() - degreeU - 1;
|
|
numV = knotsV.size() - degreeV - 1;
|
|
}
|
|
|
|
V3d
|
|
RBSurf::eval(float u, float v)
|
|
{
|
|
int i, j;
|
|
V3d vert = { 0.0f, 0.0f, 0.0f };
|
|
float w = 0.0f;
|
|
|
|
float basisU[10], basisV[10];
|
|
|
|
// Find knots we're interested in
|
|
int k;
|
|
for(k = 0; k < knotsU.size(); k++)
|
|
if(knotsU[k] <= u && u < knotsU[k+1])
|
|
break;
|
|
int startI = k-degreeU;
|
|
int endI = k+1;
|
|
for(k = 0; k < knotsV.size(); k++)
|
|
if(knotsV[k] <= v && v < knotsV[k+1])
|
|
break;
|
|
int startJ = k-degreeV;
|
|
int endJ = k+1;
|
|
|
|
for(i = startI; i < endI; i++) basisU[i-startI] = evalBasisFast(i, degreeU, u, &knotsU[0]);
|
|
for(j = startJ; j < endJ; j++) basisV[j-startJ] = evalBasisFast(j, degreeV, v, &knotsV[0]);
|
|
|
|
for(j = startJ; j < endJ; j++)
|
|
for(i = startI; i < endI; i++){
|
|
float r = basisV[j-startJ]*basisU[i-startI];
|
|
w += weights[j*numU + i]*r;
|
|
vert = add(vert, scale(verts[j*numU + i], weights[j*numU + i]*r));
|
|
}
|
|
return scale(vert, div0(1.0f,w));
|
|
}
|
|
|
|
void
|
|
RBSurf::drawHull(void)
|
|
{
|
|
rw::SetRenderStatePtr(rw::TEXTURERASTER, nil);
|
|
rw::SetRenderState(rw::FOGENABLE, 0);
|
|
|
|
imVert.setU(0.0f);
|
|
imVert.setV(0.0f);
|
|
imVert.setColor(138, 72, 51, 255);
|
|
// imVert.setColor(228, 172, 121, 255);
|
|
|
|
int iu, iv;
|
|
for(iv = 0; iv < numV; iv++){
|
|
BeginIm3D(rw::PRIMTYPEPOLYLINE);
|
|
for(iu = 0; iu < numU; iu++)
|
|
AddVertex(verts[iu + iv*numU]);
|
|
EndIm3D();
|
|
}
|
|
|
|
for(iu = 0; iu < numU; iu++){
|
|
BeginIm3D(rw::PRIMTYPEPOLYLINE);
|
|
for(iv = 0; iv < numV; iv++)
|
|
AddVertex(verts[iu + iv*numU]);
|
|
EndIm3D();
|
|
}
|
|
}
|
|
|
|
void
|
|
RBSurf::drawIsoparms(void)
|
|
{
|
|
V3d vert;
|
|
int iu, iv;
|
|
float u, v;
|
|
|
|
rw::SetRenderStatePtr(rw::TEXTURERASTER, nil);
|
|
rw::SetRenderState(rw::FOGENABLE, 0);
|
|
|
|
imVert.setU(0.0f);
|
|
imVert.setV(0.0f);
|
|
imVert.setColor(0, 4, 96, 255);
|
|
|
|
float endu = knotsU[knotsU.size()-1] - epsilon;
|
|
float endv = knotsU[knotsV.size()-1] - epsilon;
|
|
float uinc = (endu-knotsU[0])/40.0f;
|
|
float vinc = (endv-knotsV[0])/40.0f;
|
|
|
|
v = -100000.0f;
|
|
for(iv = 0; iv < knotsV.size(); iv++){
|
|
if(knotsV[iv] <= v) continue;
|
|
v = knotsV[iv];
|
|
if(v > endv) v = endv;
|
|
|
|
BeginIm3D(rw::PRIMTYPEPOLYLINE);
|
|
for(u = knotsU[0];; u += uinc){
|
|
if(u > endu)
|
|
u = endu;
|
|
AddVertex(eval(u, v));
|
|
if(u >= endu)
|
|
break;
|
|
}
|
|
EndIm3D();
|
|
}
|
|
|
|
u = -100000.0f;
|
|
for(iu = 0; iu < knotsU.size(); iu++){
|
|
if(knotsU[iu] <= u) continue;
|
|
u = knotsU[iu];
|
|
if(u > endu) u = endu;
|
|
|
|
BeginIm3D(rw::PRIMTYPEPOLYLINE);
|
|
for(v = knotsV[0];; v += vinc){
|
|
if(v > endv)
|
|
v = endv;
|
|
AddVertex(eval(u, v));
|
|
if(v >= endv)
|
|
break;
|
|
}
|
|
EndIm3D();
|
|
}
|
|
}
|
|
|
|
void
|
|
RBSurf::drawShaded(void)
|
|
{
|
|
V3d vert;
|
|
int iu, iv;
|
|
float u, v;
|
|
|
|
rw::SetRenderStatePtr(rw::TEXTURERASTER, nil);
|
|
rw::SetRenderState(rw::FOGENABLE, 0);
|
|
|
|
imVert.setU(0.0f);
|
|
imVert.setV(0.0f);
|
|
imVert.setColor(0, 128, 240, 255);
|
|
|
|
float endu = knotsU[knotsU.size()-1] - epsilon;
|
|
float endv = knotsU[knotsV.size()-1] - epsilon;
|
|
float uinc = (endu-knotsU[0])/40.0f;
|
|
float vinc = (endv-knotsV[0])/40.0f;
|
|
|
|
float vnext;
|
|
for(v = knotsV[0];; v = vnext){
|
|
if(v > endv)
|
|
v = endv;
|
|
vnext = v + vinc;
|
|
|
|
BeginIm3D(rw::PRIMTYPETRISTRIP);
|
|
for(u = knotsU[0];; u += uinc){
|
|
if(u > endu)
|
|
u = endu;
|
|
|
|
AddVertex(eval(u, v));
|
|
AddVertex(eval(u, vnext));
|
|
|
|
if(u >= endu)
|
|
break;
|
|
}
|
|
EndIm3D();
|
|
if(vnext >= endv)
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
RBCurve testspline1, testspline2;
|
|
RBSurf testsurf;
|
|
|
|
V3d teapotVerts[] = {
|
|
{ 0.2000, 0.0000, 2.70000 }, { 0.2000, -0.1120, 2.70000 },
|
|
{ 0.1120, -0.2000, 2.70000 }, { 0.0000, -0.2000, 2.70000 },
|
|
{ 1.3375, 0.0000, 2.53125 }, { 1.3375, -0.7490, 2.53125 },
|
|
{ 0.7490, -1.3375, 2.53125 }, { 0.0000, -1.3375, 2.53125 },
|
|
{ 1.4375, 0.0000, 2.53125 }, { 1.4375, -0.8050, 2.53125 },
|
|
{ 0.8050, -1.4375, 2.53125 }, { 0.0000, -1.4375, 2.53125 },
|
|
{ 1.5000, 0.0000, 2.40000 }, { 1.5000, -0.8400, 2.40000 },
|
|
{ 0.8400, -1.5000, 2.40000 }, { 0.0000, -1.5000, 2.40000 },
|
|
{ 1.7500, 0.0000, 1.87500 }, { 1.7500, -0.9800, 1.87500 },
|
|
{ 0.9800, -1.7500, 1.87500 }, { 0.0000, -1.7500, 1.87500 },
|
|
{ 2.0000, 0.0000, 1.35000 }, { 2.0000, -1.1200, 1.35000 },
|
|
{ 1.1200, -2.0000, 1.35000 }, { 0.0000, -2.0000, 1.35000 },
|
|
{ 2.0000, 0.0000, 0.90000 }, { 2.0000, -1.1200, 0.90000 },
|
|
{ 1.1200, -2.0000, 0.90000 }, { 0.0000, -2.0000, 0.90000 },
|
|
{ -2.0000, 0.0000, 0.90000 }, { 2.0000, 0.0000, 0.45000 },
|
|
{ 2.0000, -1.1200, 0.45000 }, { 1.1200, -2.0000, 0.45000 },
|
|
{ 0.0000, -2.0000, 0.45000 }, { 1.5000, 0.0000, 0.22500 },
|
|
{ 1.5000, -0.8400, 0.22500 }, { 0.8400, -1.5000, 0.22500 },
|
|
{ 0.0000, -1.5000, 0.22500 }, { 1.5000, 0.0000, 0.15000 },
|
|
{ 1.5000, -0.8400, 0.15000 }, { 0.8400, -1.5000, 0.15000 },
|
|
{ 0.0000, -1.5000, 0.15000 }, { -1.6000, 0.0000, 2.02500 },
|
|
{ -1.6000, -0.3000, 2.02500 }, { -1.5000, -0.3000, 2.25000 },
|
|
{ -1.5000, 0.0000, 2.25000 }, { -2.3000, 0.0000, 2.02500 },
|
|
{ -2.3000, -0.3000, 2.02500 }, { -2.5000, -0.3000, 2.25000 },
|
|
{ -2.5000, 0.0000, 2.25000 }, { -2.7000, 0.0000, 2.02500 },
|
|
{ -2.7000, -0.3000, 2.02500 }, { -3.0000, -0.3000, 2.25000 },
|
|
{ -3.0000, 0.0000, 2.25000 }, { -2.7000, 0.0000, 1.80000 },
|
|
{ -2.7000, -0.3000, 1.80000 }, { -3.0000, -0.3000, 1.80000 },
|
|
{ -3.0000, 0.0000, 1.80000 }, { -2.7000, 0.0000, 1.57500 },
|
|
{ -2.7000, -0.3000, 1.57500 }, { -3.0000, -0.3000, 1.35000 },
|
|
{ -3.0000, 0.0000, 1.35000 }, { -2.5000, 0.0000, 1.12500 },
|
|
{ -2.5000, -0.3000, 1.12500 }, { -2.6500, -0.3000, 0.93750 },
|
|
{ -2.6500, 0.0000, 0.93750 }, { -2.0000, -0.3000, 0.90000 },
|
|
{ -1.9000, -0.3000, 0.60000 }, { -1.9000, 0.0000, 0.60000 },
|
|
{ 1.7000, 0.0000, 1.42500 }, { 1.7000, -0.6600, 1.42500 },
|
|
{ 1.7000, -0.6600, 0.60000 }, { 1.7000, 0.0000, 0.60000 },
|
|
{ 2.6000, 0.0000, 1.42500 }, { 2.6000, -0.6600, 1.42500 },
|
|
{ 3.1000, -0.6600, 0.82500 }, { 3.1000, 0.0000, 0.82500 },
|
|
{ 2.3000, 0.0000, 2.10000 }, { 2.3000, -0.2500, 2.10000 },
|
|
{ 2.4000, -0.2500, 2.02500 }, { 2.4000, 0.0000, 2.02500 },
|
|
{ 2.7000, 0.0000, 2.40000 }, { 2.7000, -0.2500, 2.40000 },
|
|
{ 3.3000, -0.2500, 2.40000 }, { 3.3000, 0.0000, 2.40000 },
|
|
{ 2.8000, 0.0000, 2.47500 }, { 2.8000, -0.2500, 2.47500 },
|
|
{ 3.5250, -0.2500, 2.49375 }, { 3.5250, 0.0000, 2.49375 },
|
|
{ 2.9000, 0.0000, 2.47500 }, { 2.9000, -0.1500, 2.47500 },
|
|
{ 3.4500, -0.1500, 2.51250 }, { 3.4500, 0.0000, 2.51250 },
|
|
{ 2.8000, 0.0000, 2.40000 }, { 2.8000, -0.1500, 2.40000 },
|
|
{ 3.2000, -0.1500, 2.40000 }, { 3.2000, 0.0000, 2.40000 },
|
|
{ 0.0000, 0.0000, 3.15000 }, { 0.8000, 0.0000, 3.15000 },
|
|
{ 0.8000, -0.4500, 3.15000 }, { 0.4500, -0.8000, 3.15000 },
|
|
{ 0.0000, -0.8000, 3.15000 }, { 0.0000, 0.0000, 2.85000 },
|
|
{ 1.4000, 0.0000, 2.40000 }, { 1.4000, -0.7840, 2.40000 },
|
|
{ 0.7840, -1.4000, 2.40000 }, { 0.0000, -1.4000, 2.40000 },
|
|
{ 0.4000, 0.0000, 2.55000 }, { 0.4000, -0.2240, 2.55000 },
|
|
{ 0.2240, -0.4000, 2.55000 }, { 0.0000, -0.4000, 2.55000 },
|
|
{ 1.3000, 0.0000, 2.55000 }, { 1.3000, -0.7280, 2.55000 },
|
|
{ 0.7280, -1.3000, 2.55000 }, { 0.0000, -1.3000, 2.55000 },
|
|
{ 1.3000, 0.0000, 2.40000 }, { 1.3000, -0.7280, 2.40000 },
|
|
{ 0.7280, -1.3000, 2.40000 }, { 0.0000, -1.3000, 2.40000 }
|
|
};
|
|
int teapotPatches[10][16] = {
|
|
{ 118, 118, 118, 118, 124, 122, 119, 121,
|
|
123, 126, 125, 120, 40, 39, 38, 37 },
|
|
{ 102, 103, 104, 105, 4, 5, 6, 7,
|
|
8, 9, 10, 11, 12, 13, 14, 15 },
|
|
{ 12, 13, 14, 15, 16, 17, 18, 19,
|
|
20, 21, 22, 23, 24, 25, 26, 27 },
|
|
{ 24, 25, 26, 27, 29, 30, 31, 32,
|
|
33, 34, 35, 36, 37, 38, 39, 40 },
|
|
{ 96, 96, 96, 96, 97, 98, 99, 100,
|
|
101, 101, 101, 101, 0, 1, 2, 3 },
|
|
{ 0, 1, 2, 3, 106, 107, 108, 109,
|
|
110, 111, 112, 113, 114, 115, 116, 117 },
|
|
{ 41, 42, 43, 44, 45, 46, 47, 48,
|
|
49, 50, 51, 52, 53, 54, 55, 56 },
|
|
{ 53, 54, 55, 56, 57, 58, 59, 60,
|
|
61, 62, 63, 64, 28, 65, 66, 67 },
|
|
{ 68, 69, 70, 71, 72, 73, 74, 75,
|
|
76, 77, 78, 79, 80, 81, 82, 83 },
|
|
{ 80, 81, 82, 83, 84, 85, 86, 87,
|
|
88, 89, 90, 91, 92, 93, 94, 95 },
|
|
};
|
|
|
|
BezierSurf teapotSurfs[32];
|
|
|
|
void
|
|
initsplines(void)
|
|
{
|
|
V3d vert;
|
|
|
|
testspline1.degree = 3;
|
|
testspline1.verts.clear();
|
|
testspline1.weights.clear();
|
|
vert.set(-30.63383, 22.65459, 0);
|
|
vert = scale(vert, 1.0f/20.0f);
|
|
testspline1.verts.push_back(vert);
|
|
testspline1.weights.push_back(1.0f);
|
|
vert.set(13.50783, 33.01786, 15.06403);
|
|
vert = scale(vert, 1.0f/20.0f);
|
|
testspline1.verts.push_back(vert);
|
|
testspline1.weights.push_back(1.0f);
|
|
vert.set(34.252, -10.36327, 15.06403);
|
|
vert = scale(vert, 1.0f/20.0f);
|
|
testspline1.verts.push_back(vert);
|
|
testspline1.weights.push_back(1.0f);
|
|
vert.set(-7.959972, -1.205032, 0);
|
|
vert = scale(vert, 1.0f/20.0f);
|
|
testspline1.verts.push_back(vert);
|
|
testspline1.weights.push_back(1.0f);
|
|
vert.set(6.995127, -41.32158, -18.19684);
|
|
vert = scale(vert, 1.0f/20.0f);
|
|
testspline1.verts.push_back(vert);
|
|
testspline1.weights.push_back(1.0f);
|
|
|
|
testspline1.knots.clear();
|
|
testspline1.knots.push_back(0);
|
|
testspline1.knots.push_back(0);
|
|
testspline1.knots.push_back(0);
|
|
testspline1.knots.push_back(0);
|
|
testspline1.knots.push_back(1);
|
|
testspline1.knots.push_back(2);
|
|
testspline1.knots.push_back(2);
|
|
testspline1.knots.push_back(2);
|
|
testspline1.knots.push_back(2);
|
|
|
|
|
|
testspline2.degree = 2;
|
|
testspline2.verts.clear();
|
|
#define V(x, y, z) \
|
|
vert.set(x, y, z); \
|
|
testspline2.verts.push_back(scale(vert, 1.0f/20.0f)); \
|
|
testspline2.weights.push_back(1.0f);
|
|
V(-61.9913, 9.158239, 0);
|
|
V(-32.32231, 27.23371, 0);
|
|
V(25.80961, -4.820126, 0);
|
|
#undef V
|
|
testspline2.knots.clear();
|
|
testspline2.knots.push_back(0);
|
|
testspline2.knots.push_back(0);
|
|
testspline2.knots.push_back(0);
|
|
testspline2.knots.push_back(1);
|
|
testspline2.knots.push_back(1);
|
|
testspline2.knots.push_back(1);
|
|
|
|
/*
|
|
testspline2 = testspline1;
|
|
// testspline2.knots.clear();
|
|
// testspline2.knots.push_back(0);
|
|
// testspline2.knots.push_back(0);
|
|
// testspline2.knots.push_back(0);
|
|
// testspline2.knots.push_back(0);
|
|
// testspline2.knots.push_back(3);
|
|
// testspline2.knots.push_back(4);
|
|
// testspline2.knots.push_back(4);
|
|
// testspline2.knots.push_back(4);
|
|
// testspline2.knots.push_back(4);
|
|
testspline1.weights[2] = 5.0f;
|
|
*/
|
|
|
|
#define V(x, y, z) \
|
|
vert.set(x, y, z); \
|
|
testsurf.verts.push_back(scale(vert, 1.0f/20.0f)); \
|
|
testsurf.weights.push_back(1.0f);
|
|
|
|
testsurf.degreeU = 3;
|
|
testsurf.degreeV = 3;
|
|
testsurf.verts.clear();
|
|
testsurf.weights.clear();
|
|
V(-69.22764, -0, 12.77366);
|
|
V(-48.72468, 0, 29.16251);
|
|
V(-24.84476, 0, 39.52605);
|
|
V(22.43265, -0, 45.79238);
|
|
V(36.4229, 0, 28.9215);
|
|
V(61.02645, 0, 6.74835);
|
|
V(86.35364, -0, 20.96809);
|
|
V(-69.22764, 9.286676, 12.77366);
|
|
V(-48.72468, 9.286676, 29.16251);
|
|
V(-24.84476, 9.286676, 39.52605);
|
|
V(22.43265, 9.286676, 45.79238);
|
|
V(36.4229, 9.286676, 28.9215);
|
|
V(61.02645, 9.286676, 6.74835);
|
|
V(86.35364, 9.286676, 20.96809);
|
|
V(-68.13416, 23.51821, 6.114491);
|
|
V(-48.19925, 23.51821, 22.27994);
|
|
V(-26.91943, 23.51821, 33.20763);
|
|
V(18.69658, 23.51821, 39.0488);
|
|
V(27.88844, 23.51821, 30.80604);
|
|
V(57.49908, 23.51821, -0.6488895);
|
|
V(86.35364, 23.51821, 14.21974);
|
|
V(-67.00163, 52.46369, -0.7825046);
|
|
V(-47.65504, 52.46369, 15.15157);
|
|
V(-29.06818, 52.46369, 26.66356);
|
|
V(14.82709, 52.46369, 32.06438);
|
|
V(19.04919, 52.46369, 32.75788);
|
|
V(53.84574, 52.46369, -8.310311);
|
|
V(86.35364, 52.46369, 7.230374);
|
|
V(-67.86079, 70.07219, 4.449699);
|
|
V(-48.06789, 70.07219, 20.5593);
|
|
V(-27.43809, 70.07219, 31.62803);
|
|
V(17.76257, 70.07219, 37.36291);
|
|
V(25.75483, 70.07219, 31.27717);
|
|
V(56.61724, 70.07219, -2.498198);
|
|
V(86.35364, 70.07219, 12.53265);
|
|
#undef V
|
|
testsurf.knotsU.clear();
|
|
testsurf.knotsU.push_back(0);
|
|
testsurf.knotsU.push_back(0);
|
|
testsurf.knotsU.push_back(0);
|
|
testsurf.knotsU.push_back(0);
|
|
testsurf.knotsU.push_back(0.25);
|
|
testsurf.knotsU.push_back(0.5);
|
|
testsurf.knotsU.push_back(0.75);
|
|
testsurf.knotsU.push_back(1);
|
|
testsurf.knotsU.push_back(1);
|
|
testsurf.knotsU.push_back(1);
|
|
testsurf.knotsU.push_back(1);
|
|
testsurf.knotsV.clear();
|
|
testsurf.knotsV.push_back(0);
|
|
testsurf.knotsV.push_back(0);
|
|
testsurf.knotsV.push_back(0);
|
|
testsurf.knotsV.push_back(0);
|
|
testsurf.knotsV.push_back(0.5);
|
|
testsurf.knotsV.push_back(1);
|
|
testsurf.knotsV.push_back(1);
|
|
testsurf.knotsV.push_back(1);
|
|
testsurf.knotsV.push_back(1);
|
|
|
|
testsurf.update();
|
|
|
|
int i, j;
|
|
for(i = 0; i < 10; i++)
|
|
for(j = 0; j < 16; j++)
|
|
teapotSurfs[i].verts[j] = teapotVerts[teapotPatches[i][j]];
|
|
for(i = 0; i < 10; i++){
|
|
teapotSurfs[i+10] = teapotSurfs[i];
|
|
teapotSurfs[i+10].mirrorY();
|
|
}
|
|
for(i = 0; i < 6; i++){
|
|
teapotSurfs[i+20] = teapotSurfs[i];
|
|
teapotSurfs[i+20].mirrorX();
|
|
teapotSurfs[i+20+6] = teapotSurfs[i+10];
|
|
teapotSurfs[i+20+6].mirrorX();
|
|
}
|
|
}
|
|
|
|
void
|
|
rendersplines(void)
|
|
{
|
|
// testspline1.drawHull();
|
|
// testspline1.drawSpline();
|
|
|
|
// testspline2.drawHull();
|
|
// testspline2.drawSpline();
|
|
|
|
// testsurf.drawHull();
|
|
// testsurf.drawShaded();
|
|
// testsurf.drawIsoparms();
|
|
|
|
int i;
|
|
for(i = 0; i < 32; i++){
|
|
teapotSurfs[i].drawHull();
|
|
teapotSurfs[i].drawShaded();
|
|
}
|
|
}
|