void emitStrip(Vector v[6], float s1, float s2, float dt, int count, int depth)
{
if(depth > 0){
emitStrip(v, s1, (s1+s2)/2, dt/2, count*2-1, depth-1);
emitStrip(v, (s1+s2)/2, s2, dt/2, count*2-1, depth-1);
}else{
glBegin(GL_TRIANGLE_STRIP);
/*
static Color colors[] = {
Color(255,255,0),
Color(0,255,255),
Color(255,0,255),
Color(255,255,255),
Color(0,255,0)
};
static int i = 0;
glColor(colors[(i++)%5]);
*/
for(int i=0; i<count; i++){
Vector v1 = sampleStrip(v, s1, i*dt);
Vector v2 = sampleStrip(v, s2, i*dt);
v1 /= length(v1);
v2 /= length(v2);
glNormal(v1);
glTexCoord3f(v1.x, v1.y, v1.z);
glVertex(v1);
glNormal(v2);
glTexCoord3f(v2.x, v2.y, v2.z);
glVertex(v2);
}
glEnd();
}
}
void ConeNode::createList(GLContextData& renderState) const
{
Scalar h=height.getValue();
Scalar h2=Math::div2(h);
Scalar br=bottomRadius.getValue();
int ns=numSegments.getValue();
if(side.getValue())
{
/* Draw the cone side: */
glBegin(GL_QUAD_STRIP);
Scalar nScale=Scalar(1)/Math::sqrt(h*h+br*br);
glNormal(Scalar(0),br*nScale,-h*nScale);
glTexCoord2f(0.0f,1.0f);
glVertex(Scalar(0),h2,Scalar(0));
glTexCoord2f(0.0f,0.0f);
glVertex(Scalar(0),-h2,-br);
for(int i=1;i<ns;++i)
{
Scalar angle=Scalar(2)*Math::Constants<Scalar>::pi*Scalar(i)/Scalar(ns);
float texS=float(i)/float(ns);
Scalar c=Math::cos(angle);
Scalar s=Math::sin(angle);
glNormal(-s*h*nScale,br*nScale,-c*h*nScale);
glTexCoord2f(texS,1.0f);
glVertex(Scalar(0),h2,Scalar(0));
glTexCoord2f(texS,0.0f);
glVertex(-s*br,-h2,-c*br);
}
glNormal(Scalar(0),br*nScale,-h*nScale);
glTexCoord2f(1.0f,1.0f);
glVertex(Scalar(0),h2,Scalar(0));
glTexCoord2f(1.0f,0.0f);
glVertex(Scalar(0),-h2,-br);
glEnd();
}
if(bottom.getValue())
{
/* Draw the cone bottom: */
glBegin(GL_TRIANGLE_FAN);
glNormal(Scalar(0),Scalar(-1),Scalar(0));
glTexCoord2f(0.5f,0.5f);
glVertex(Scalar(0),-h2,Scalar(0));
glTexCoord2f(0.5f,0.0f);
glVertex(Scalar(0),-h2,-br);
for(int i=ns-1;i>0;--i)
{
Scalar angle=Scalar(2)*Math::Constants<Scalar>::pi*Scalar(i)/Scalar(ns);
Scalar c=Math::cos(angle);
Scalar s=Math::sin(angle);
glTexCoord2f(-float(s)*0.5f+0.5f,-float(c)*0.5f+0.5f);
glVertex(-s*br,-h2,-c*br);
}
glTexCoord2f(0.5f,0.0f);
glVertex(Scalar(0),-h2,-br);
glEnd();
}
}
void QuadSetNode::glRenderAction(GLRenderState& renderState) const
{
/* Bail out if there are less than 4 points: */
if(coord.getValue()==0||coord.getValue()->point.getNumValues()<4)
return;
/* Set up OpenGL state: */
renderState.enableCulling(GL_BACK);
/* Render the quad set: */
size_t numPoints=coord.getValue()->point.getNumValues();
glBegin(GL_QUADS);
std::vector<Vector>::const_iterator qnIt=quadNormals.begin();
for(size_t q=0;q+4<=numPoints;q+=4,++qnIt)
{
/* Get the quad's four corner points in counter-clockwise order: */
Point ps[4];
if(ccw.getValue())
{
for(size_t i=0;i<4;++i)
ps[i]=coord.getValue()->point.getValue(q+i);
}
else
{
for(size_t i=0;i<4;++i)
ps[i]=coord.getValue()->point.getValue(q+3-i);
}
if(pointTransform.getValue()!=0)
{
/* Transform the quad's corner points: */
for(int i=0;i<4;++i)
ps[i]=pointTransform.getValue()->transformPoint(ps[i]);
}
/* Draw the quad's front: */
glNormal(*qnIt);
for(int i=0;i<4;++i)
{
glTexCoord(quadTexCoords[i]);
glVertex(ps[i]);
}
if(!solid.getValue())
{
/* Draw the quad's back: */
glNormal(-*qnIt);
for(int i=3;i>=0;--i)
{
glTexCoord(quadTexCoords[i]);
glVertex(ps[i]);
}
}
}
glEnd();
}
inline
void
Polyhedron<ScalarParam>::drawIntersection(const typename Polyhedron<ScalarParam>::Plane& plane) const
{
typedef Misc::HashTable<Card,void> IndexSet;
/* Find any edge that intersects the given plane: */
Card numEdges=edges.size();
Card intersectedEdgeIndex=numEdges;
IndexSet ioEdges(17);
for(Card i=0;i<numEdges;++i)
{
/* Get the plane distance of start and end points of edge i: */
Scalar d0=plane.calcDistance(edges[i].start);
Scalar d1=plane.calcDistance(edges[edges[i].next].start);
/* Classify the edge: */
if(d0<Scalar(0)&&d1>=Scalar(0))
{
/* Remember the edge: */
intersectedEdgeIndex=i;
}
else if(d0>=Scalar(0)&&d1<Scalar(0))
{
/* Mark the edge as a face exit: */
ioEdges.setEntry(IndexSet::Entry(i));
}
}
/* Bail out if no intersection was found: */
if(intersectedEdgeIndex==numEdges)
return;
/* Iterate around the polyhedron along the plane intersection: */
glBegin(GL_POLYGON);
glNormal(-plane.getNormal());
Card edgeIndex=intersectedEdgeIndex;
do
{
/* Calculate and draw the edge's intersection point: */
const Point& p0=edges[edgeIndex].start;
Scalar d0=plane.calcDistance(p0);
const Point& p1=edges[edges[edgeIndex].next].start;
Scalar d1=plane.calcDistance(p1);
glVertex(Geometry::affineCombination(p0,p1,(Scalar(0)-d0)/(d1-d0)));
/* Find the next intersected edge around the same face as the current last edge: */
Card i;
for(i=edges[edgeIndex].next;!ioEdges.isEntry(i);i=edges[i].next)
;
/* Go to the next intersected face: */
edgeIndex=edges[i].opposite;
}
while(edgeIndex!=intersectedEdgeIndex);
glEnd();
}
void TriangleRenderer::initContext(GLContextData& contextData) const
{
/* Create context data item: */
DataItem* dataItem=new DataItem;
contextData.addDataItem(this,dataItem);
/* Create model display list: */
glNewList(dataItem->displayListId,GL_COMPILE);
/* Render triangle sides: */
glBegin(GL_QUADS);
glNormal(Triangle::renderNormals[0]);
glVertex(Triangle::renderVertices[0]);
glVertex(Triangle::renderVertices[1]);
glVertex(Triangle::renderVertices[4]);
glVertex(Triangle::renderVertices[3]);
glNormal(Triangle::renderNormals[1]);
glVertex(Triangle::renderVertices[1]);
glVertex(Triangle::renderVertices[2]);
glVertex(Triangle::renderVertices[5]);
glVertex(Triangle::renderVertices[4]);
glNormal(Triangle::renderNormals[2]);
glVertex(Triangle::renderVertices[2]);
glVertex(Triangle::renderVertices[0]);
glVertex(Triangle::renderVertices[3]);
glVertex(Triangle::renderVertices[5]);
glEnd();
/* Render triangle caps: */
glBegin(GL_TRIANGLES);
glNormal(Triangle::renderNormals[3]);
glVertex(Triangle::renderVertices[0]);
glVertex(Triangle::renderVertices[2]);
glVertex(Triangle::renderVertices[1]);
glNormal(Triangle::renderNormals[4]);
glVertex(Triangle::renderVertices[3]);
glVertex(Triangle::renderVertices[4]);
glVertex(Triangle::renderVertices[5]);
glEnd();
/* Finish model display list: */
glEndList();
}
// Send out a normal, texture coordinate, vertex coordinate, and an optional custom attribute.
void TParametricSurface::Vertex(vec2 domain)
{
vec3 p0, p1, p2, p3;
vec3 normal;
float u = domain.u;
float v = domain.v;
Eval(domain, p0);
vec2 z1(u + du/2, v);
Eval(z1, p1);
vec2 z2(u + du/2 + du, v);
Eval(z2, p3);
if (flipped) {
vec2 z3(u + du/2, v - dv);
Eval(z3, p2);
} else {
vec2 z4(u + du/2, v + dv);
Eval(z4, p2);
}
const float epsilon = 0.00001f;
vec3 tangent = p3 - p1;
vec3 binormal = p2 - p1;
normal = cross(tangent, binormal);
if (normal.magnitude() < epsilon)
normal = p0;
normal.unitize();
if (tangentLoc != -1)
{
if (tangent.magnitude() < epsilon)
tangent = cross(binormal, normal);
tangent.unitize();
glVertexAttrib(tangentLoc, tangent);
}
if (binormalLoc != -1)
{
binormal.unitize();
glVertexAttrib(binormalLoc, -binormal);
}
if (CustomAttributeLocation() != -1)
glVertexAttrib1f(CustomAttributeLocation(), CustomAttributeValue(domain));
glNormal(normal);
glTexCoord(domain);
glVertex(p0);
}
void DropdownButton::drawDecoration(GLContextData&) const
{
/* Draw the margin around the dropdown arrow: */
glColor(backgroundColor);
glNormal3f(0.0f,0.0f,1.0f);
glBegin(GL_TRIANGLE_FAN);
glVertex(arrowOuter[0]);
glVertex(arrowOuter[6]);
glVertex(decorationBox.getCorner(0));
glVertex(decorationBox.getCorner(1));
glVertex(arrowOuter[1]);
glEnd();
glBegin(GL_TRIANGLE_FAN);
glVertex(decorationBox.getCorner(3));
glVertex(arrowOuter[4]);
glVertex(arrowOuter[3]);
glVertex(arrowOuter[2]);
glVertex(arrowOuter[1]);
glVertex(decorationBox.getCorner(1));
glEnd();
glBegin(GL_TRIANGLE_FAN);
glVertex(decorationBox.getCorner(2));
glVertex(decorationBox.getCorner(0));
glVertex(arrowOuter[6]);
glVertex(arrowOuter[5]);
glVertex(arrowOuter[4]);
glVertex(decorationBox.getCorner(3));
glEnd();
/* Draw the arrow sides: */
glBegin(GL_QUADS);
int i1=6;
for(int i2=0;i2<7;++i2)
{
glNormal(arrowNormal[i1]);
glVertex(arrowOuter[i1]);
glVertex(arrowOuter[i2]);
glVertex(arrowInner[i2]);
glVertex(arrowInner[i1]);
i1=i2;
}
glEnd();
/* Draw the arrow face: */
glNormal3f(0.0f,0.0f,1.0f);
glBegin(GL_TRIANGLE_FAN);
for(int i=0;i<7;++i)
glVertex(arrowInner[i]);
glEnd();
}
void CylinderRenderer::initContext(GLContextData& contextData) const
{
/* Create context data item: */
DataItem* dataItem=new DataItem;
contextData.addDataItem(this,dataItem);
/* Create model display list: */
glNewList(dataItem->displayListId,GL_COMPILE);
/* Render cylinder: */
Scalar hradius=Cylinder::radius/Scalar(3);
glNormal3f(0.0f,0.0f,-1.0);
glBegin(GL_POLYGON);
for(int i=7;i>=0;--i)
{
Scalar angle=Scalar(2)*Math::Constants<Scalar>::pi*Scalar(i)/Scalar(8);
Scalar c=Math::cos(angle);
Scalar s=Math::sin(angle);
glVertex(Point(c*hradius,s*hradius,-Cylinder::radius));
}
glEnd();
glBegin(GL_QUAD_STRIP);
for(int i=0;i<=8;++i)
{
Scalar angle=Scalar(2)*Math::Constants<Scalar>::pi*Scalar(i%8)/Scalar(8);
Scalar c=Math::cos(angle);
Scalar s=Math::sin(angle);
glNormal(Vector(c,s,Scalar(0)));
glVertex(Point(c*hradius,s*hradius,Cylinder::radius));
glVertex(Point(c*hradius,s*hradius,-Cylinder::radius));
}
glEnd();
glNormal3f(0.0f,0.0f,1.0);
glBegin(GL_POLYGON);
for(int i=0;i<8;++i)
{
Scalar angle=Scalar(2)*Math::Constants<Scalar>::pi*Scalar(i)/Scalar(8);
Scalar c=Math::cos(angle);
Scalar s=Math::sin(angle);
glVertex(Point(c*hradius,s*hradius,Cylinder::radius));
}
glEnd();
/* Finish model display list: */
glEndList();
}
void BoxGrid::renderAnchor()
{
glColor4f(1.0,0,0,1.0);
glBegin(GL_QUADS);
for(int i=0;i<anchors.size();i++)
{
int idBox = anchors[i];
RowVector3 p[8];
p[0] = getCurrentPose(getBoxNodes(idBox,7));
p[1] = getCurrentPose(getBoxNodes(idBox,6));
p[2] = getCurrentPose(getBoxNodes(idBox,5));
p[3] = getCurrentPose(getBoxNodes(idBox,4));
p[4] = getCurrentPose(getBoxNodes(idBox,3));
p[5] = getCurrentPose(getBoxNodes(idBox,2));
p[6] = getCurrentPose(getBoxNodes(idBox,1));
p[7] = getCurrentPose(getBoxNodes(idBox,0));
glNormal((p[3]-p[7]).cross(p[6]-p[7]));//bottom
glVertex(p[7]);
glVertex(p[3]);
glVertex(p[2]);
glVertex(p[6]);
glNormal((p[4]-p[5]).cross(p[1]-p[5]));//top
glVertex(p[5]);
glVertex(p[4]);
glVertex(p[0]);
glVertex(p[1]);
glNormal((p[5]-p[7]).cross(p[3]-p[7]));//far
glVertex(p[7]);
glVertex(p[5]);
glVertex(p[1]);
glVertex(p[3]);
glNormal((p[1]-p[3]).cross(p[2]-p[3]));//right
glVertex(p[3]);
glVertex(p[1]);
glVertex(p[0]);
glVertex(p[2]);
glNormal((p[2]-p[6]).cross(p[4]-p[6]));//front
glVertex(p[6]);
glVertex(p[2]);
glVertex(p[0]);
glVertex(p[4]);
glNormal((p[6]-p[7]).cross(p[5]-p[7]));//left
glVertex(p[7]);
glVertex(p[6]);
glVertex(p[4]);
glVertex(p[5]);
}
glEnd();
RowVector4 color(1.0,0.0,0.0,1.0);
for(int i=0;i<anchorNodes.size();i++)
{
RowVector3 p = getCurrentPose(anchorNodes[i]);
paintPoint(p, 0.007,color);
}
}
inline
void
Polyhedron<ScalarParam>::drawFaces(
void) const
{
typedef Misc::HashTable<Card,void> IndexSet;
typedef Geometry::Vector<Scalar,3> Vector;
IndexSet visitedEdges(101);
Card numEdges=edges.size();
for(Card i=0;i<numEdges;++i)
{
/* Only start a face if the current edge has not been visited yet: */
if(!visitedEdges.isEntry(i))
{
/* Draw a polygon for the face: */
glBegin(GL_POLYGON);
/* Calculate the face's normal vector: */
Card i1=edges[i].next;
Vector d0=edges[i1].start-edges[i].start;
Card i2=edges[i1].next;
Vector d1=edges[i2].start-edges[i1].start;
Vector normal=Geometry::cross(d0,d1);
normal.normalize();
glNormal(normal);
/* Traverse all edges of the face: */
Card j=i;
do
{
glVertex(edges[j].start);
visitedEdges.setEntry(IndexSet::Entry(j));
j=edges[j].next;
}
while(j!=i);
glEnd();
}
}
}
//draw a cube face at the specified color
void drawQuad(int poly)
{
u32 f1 = CubeFaces[poly * 4] ;
u32 f2 = CubeFaces[poly * 4 + 1] ;
u32 f3 = CubeFaces[poly * 4 + 2] ;
u32 f4 = CubeFaces[poly * 4 + 3] ;
glNormal(normals[poly]);
GFX_TEX_COORD = (uv[0]);
glVertex3v16(CubeVectors[f1*3], CubeVectors[f1*3 + 1], CubeVectors[f1*3 + 2] );
GFX_TEX_COORD = (uv[1]);
glVertex3v16(CubeVectors[f2*3], CubeVectors[f2*3 + 1], CubeVectors[f2*3 + 2] );
GFX_TEX_COORD = (uv[2]);
glVertex3v16(CubeVectors[f3*3], CubeVectors[f3*3 + 1], CubeVectors[f3*3 + 2] );
GFX_TEX_COORD = (uv[3]);
glVertex3v16(CubeVectors[f4*3], CubeVectors[f4*3 + 1], CubeVectors[f4*3 + 2] );
}
void OctahedronRenderer::initContext(GLContextData& contextData) const
{
/* Create context data item: */
DataItem* dataItem=new DataItem;
contextData.addDataItem(this,dataItem);
/* Create model display list: */
glNewList(dataItem->displayListId,GL_COMPILE);
/* Render octahedron: */
static const int faceVertexIndices[8][3]={{2,0,4},{1,2,4},{3,1,4},{0,3,4},
{0,2,5},{2,1,5},{1,3,5},{3,0,5}};
glBegin(GL_TRIANGLES);
for(int face=0;face<8;++face)
{
glNormal(Octahedron::renderNormals[face]);
for(int i=0;i<3;++i)
glVertex(Octahedron::renderVertices[faceVertexIndices[face][i]]);
}
glEnd();
/* Finish model display list: */
glEndList();
}
void GlyphGadget::draw(GLContextData& contextData) const
{
/* Draw the margin around the glyph: */
switch(glyphType)
{
case NONE:
glBegin(GL_QUADS);
glNormal3f(0.0f,0.0f,1.0f);
glVertex(glyphVertices[0]);
glVertex(glyphVertices[1]);
glVertex(glyphVertices[3]);
glVertex(glyphVertices[2]);
glEnd();
break;
case SQUARE:
case LOW_BAR:
glBegin(GL_QUAD_STRIP);
glNormal3f(0.0f,0.0f,1.0f);
glVertex(glyphVertices[4]);
glVertex(glyphVertices[0]);
glVertex(glyphVertices[5]);
glVertex(glyphVertices[1]);
glVertex(glyphVertices[6]);
glVertex(glyphVertices[3]);
glVertex(glyphVertices[7]);
glVertex(glyphVertices[2]);
glVertex(glyphVertices[4]);
glVertex(glyphVertices[0]);
glEnd();
break;
case DIAMOND:
glBegin(GL_TRIANGLE_FAN);
glNormal3f(0.0f,0.0f,1.0f);
glVertex(glyphVertices[0]);
glVertex(glyphVertices[1]);
glVertex(glyphVertices[4]);
glVertex(glyphVertices[7]);
glVertex(glyphVertices[2]);
glEnd();
glBegin(GL_TRIANGLE_FAN);
glVertex(glyphVertices[3]);
glVertex(glyphVertices[2]);
glVertex(glyphVertices[6]);
glVertex(glyphVertices[5]);
glVertex(glyphVertices[1]);
glEnd();
glBegin(GL_TRIANGLES);
glVertex(glyphVertices[1]);
glVertex(glyphVertices[5]);
glVertex(glyphVertices[4]);
glVertex(glyphVertices[2]);
glVertex(glyphVertices[7]);
glVertex(glyphVertices[6]);
glEnd();
break;
case CROSS:
glBegin(GL_TRIANGLE_FAN);
glNormal3f(0.0f,0.0f,1.0f);
glVertex(glyphVertices[0]);
glVertex(glyphVertices[1]);
glVertex(glyphVertices[6]);
glVertex(glyphVertices[4]);
glVertex(glyphVertices[15]);
glVertex(glyphVertices[13]);
glVertex(glyphVertices[2]);
glEnd();
glBegin(GL_TRIANGLE_FAN);
glVertex(glyphVertices[3]);
glVertex(glyphVertices[2]);
glVertex(glyphVertices[12]);
glVertex(glyphVertices[10]);
glVertex(glyphVertices[9]);
glVertex(glyphVertices[7]);
glVertex(glyphVertices[1]);
glEnd();
glBegin(GL_TRIANGLES);
glVertex(glyphVertices[4]);
glVertex(glyphVertices[6]);
glVertex(glyphVertices[5]);
glVertex(glyphVertices[6]);
glVertex(glyphVertices[1]);
glVertex(glyphVertices[7]);
glVertex(glyphVertices[7]);
glVertex(glyphVertices[9]);
glVertex(glyphVertices[8]);
glVertex(glyphVertices[10]);
glVertex(glyphVertices[12]);
glVertex(glyphVertices[11]);
glVertex(glyphVertices[12]);
glVertex(glyphVertices[2]);
glVertex(glyphVertices[13]);
glVertex(glyphVertices[13]);
glVertex(glyphVertices[15]);
glVertex(glyphVertices[14]);
glEnd();
break;
case SIMPLE_ARROW_LEFT:
case SIMPLE_ARROW_DOWN:
case SIMPLE_ARROW_RIGHT:
case SIMPLE_ARROW_UP:
glBegin(GL_TRIANGLE_FAN);
glNormal3f(0.0f,0.0f,1.0f);
glVertex(glyphVertices[4]);
glVertex(glyphVertices[6]);
glVertex(glyphVertices[2]);
glVertex(glyphVertices[0]);
glVertex(glyphVertices[5]);
glEnd();
glBegin(GL_TRIANGLES);
glVertex(glyphVertices[0]);
glVertex(glyphVertices[1]);
glVertex(glyphVertices[5]);
glVertex(glyphVertices[3]);
glVertex(glyphVertices[2]);
glVertex(glyphVertices[6]);
glEnd();
glBegin(GL_QUADS);
glVertex(glyphVertices[1]);
glVertex(glyphVertices[3]);
glVertex(glyphVertices[6]);
glVertex(glyphVertices[5]);
glEnd();
break;
case FANCY_ARROW_LEFT:
case FANCY_ARROW_DOWN:
case FANCY_ARROW_RIGHT:
case FANCY_ARROW_UP:
glBegin(GL_TRIANGLE_FAN);
glNormal3f(0.0f,0.0f,1.0f);
glVertex(glyphVertices[4]);
glVertex(glyphVertices[10]);
glVertex(glyphVertices[2]);
glVertex(glyphVertices[0]);
glVertex(glyphVertices[5]);
glEnd();
glBegin(GL_TRIANGLE_FAN);
glVertex(glyphVertices[1]);
glVertex(glyphVertices[8]);
glVertex(glyphVertices[7]);
glVertex(glyphVertices[6]);
glVertex(glyphVertices[5]);
glVertex(glyphVertices[0]);
glEnd();
glBegin(GL_TRIANGLE_FAN);
glVertex(glyphVertices[3]);
glVertex(glyphVertices[2]);
glVertex(glyphVertices[10]);
glVertex(glyphVertices[9]);
glVertex(glyphVertices[8]);
glVertex(glyphVertices[1]);
glEnd();
break;
}
/* Draw the glyph bevel: */
glBegin(GL_QUADS);
glColor(glyphColor);
for(int i=0;i<numNormals;++i)
{
glNormal(glyphNormals[i]);
int i1=(i+1)%numNormals;
glVertex(glyphVertices[4+i]);
glVertex(glyphVertices[4+i1]);
glVertex(glyphVertices[innerStart+i1]);
glVertex(glyphVertices[innerStart+i]);
}
glEnd();
/* Draw the glyph face: */
switch(glyphType)
{
case NONE:
break;
case SQUARE:
case DIAMOND:
case LOW_BAR:
glBegin(GL_QUADS);
glNormal3f(0.0f,0.0f,1.0f);
glVertex(glyphVertices[8]);
glVertex(glyphVertices[9]);
glVertex(glyphVertices[10]);
glVertex(glyphVertices[11]);
glEnd();
break;
case CROSS:
glBegin(GL_QUADS);
glNormal3f(0.0f,0.0f,1.0f);
glVertex(glyphVertices[16]);
glVertex(glyphVertices[17]);
glVertex(glyphVertices[26]);
glVertex(glyphVertices[27]);
glVertex(glyphVertices[17]);
glVertex(glyphVertices[18]);
glVertex(glyphVertices[19]);
glVertex(glyphVertices[20]);
glVertex(glyphVertices[20]);
glVertex(glyphVertices[21]);
glVertex(glyphVertices[22]);
glVertex(glyphVertices[23]);
glVertex(glyphVertices[23]);
glVertex(glyphVertices[24]);
glVertex(glyphVertices[25]);
glVertex(glyphVertices[26]);
glVertex(glyphVertices[17]);
glVertex(glyphVertices[20]);
glVertex(glyphVertices[23]);
glVertex(glyphVertices[26]);
glEnd();
break;
case SIMPLE_ARROW_LEFT:
case SIMPLE_ARROW_DOWN:
case SIMPLE_ARROW_RIGHT:
case SIMPLE_ARROW_UP:
glBegin(GL_TRIANGLES);
glNormal3f(0.0f,0.0f,1.0f);
glVertex(glyphVertices[7]);
glVertex(glyphVertices[8]);
glVertex(glyphVertices[9]);
glEnd();
break;
case FANCY_ARROW_LEFT:
case FANCY_ARROW_DOWN:
case FANCY_ARROW_RIGHT:
case FANCY_ARROW_UP:
glBegin(GL_TRIANGLE_FAN);
glNormal3f(0.0f,0.0f,1.0f);
for(int i=11;i<18;++i)
glVertex(glyphVertices[i]);
glEnd();
break;
}
}
void logo()
{
glResetMatrixStack();
glMatrixMode(GL_PROJECTION);
gluPerspective(20, 256.0 / 192.0, 0.1, 40);
gluLookAt( 0.0, .55, 0.0 , //camera possition
0.0, 0.0, 0.0, //look at
0.0, 0.0, -1.0); //up
glLight(0, RGB15(31,31,31), 0, floattov10(1.0)-1, 0);
glMatrixMode(GL_TEXTURE);
glLoadIdentity();
glMatrixMode(GL_MODELVIEW);
glMaterialf(GL_AMBIENT, RGB15(8,8,8));
glMaterialf(GL_DIFFUSE, RGB15(31,31,31));
glMaterialf(GL_SPECULAR, RGB15(31,31,31));
glMaterialf(GL_EMISSION, RGB15(8,8,8));
glMaterialShinyness();
glPolyFmt( POLY_ALPHA(31) | POLY_CULL_BACK | POLY_FORMAT_LIGHT0 );
glGenTextures(1, &logotex);
glBindTexture(0, logotex);
glTexImage2D(0, 0, GL_RGB, TEXTURE_SIZE_256 , TEXTURE_SIZE_256, 0, TEXGEN_TEXCOORD , (u8*)billkuker_bmp_bin);
glBindTexture(0, logotex);
glBegin(GL_QUAD);
glNormal(NORMAL_PACK(0,inttov10(1),0));
glTexCoord1i(TEXTURE_PACK(0,0));
glVertex3v16(floattov16(-0.5), floattov16(-0.5), floattov16(0.5) );
glTexCoord1i(TEXTURE_PACK(inttot16(256), inttot16(0)));
glVertex3v16(floattov16(0.5), floattov16(-0.5), floattov16(0.5) );
glTexCoord1i(TEXTURE_PACK(inttot16(256),inttot16(256)));
glVertex3v16(floattov16(0.5), floattov16(-0.5), floattov16(-0.5) );
glTexCoord1i(TEXTURE_PACK(0, inttot16(256)));
glVertex3v16(floattov16(-0.5), floattov16(-0.5), floattov16(-0.5) );
glEnd();
glFlush(0);
playGenericSound(down_raw, down_raw_size);
playGenericSound(up_raw, up_raw_size);
swiWaitForVBlank();
iprintf("Press any button");
while( !keysHeld() )
scanKeys();
glResetTextures();
iprintf("\x1b[2J");
}
int main() {
int textureID;
float rotateX = 0.0;
float rotateY = 0.0;
//set mode 0, enable BG0 and set it to 3D
videoSetMode(MODE_0_3D);
// initialize gl
glInit();
//enable textures
glEnable(GL_TEXTURE_2D);
// enable antialiasing
glEnable(GL_ANTIALIAS);
// setup the rear plane
glClearColor(0,0,0,31); // BG must be opaque for AA to work
glClearPolyID(63); // BG must have a unique polygon ID for AA to work
glClearDepth(0x7FFF);
//this should work the same as the normal gl call
glViewport(0,0,255,191);
vramSetBankA(VRAM_A_TEXTURE);
glGenTextures(1, &textureID);
glBindTexture(0, textureID);
glTexImage2D(0, 0, GL_RGB, TEXTURE_SIZE_128 , TEXTURE_SIZE_128, 0, TEXGEN_TEXCOORD, (u8*)texture_bin);
//any floating point gl call is being converted to fixed prior to being implemented
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(70, 256.0 / 192.0, 0.1, 40);
gluLookAt( 0.0, 0.0, 1.0, //camera possition
0.0, 0.0, 0.0, //look at
0.0, 1.0, 0.0); //up
while(1) {
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
//move it away from the camera
glTranslate3f32(0, 0, floattof32(-1));
glRotateX(rotateX);
glRotateY(rotateY);
glMaterialf(GL_AMBIENT, RGB15(16,16,16));
glMaterialf(GL_DIFFUSE, RGB15(16,16,16));
glMaterialf(GL_SPECULAR, BIT(15) | RGB15(8,8,8));
glMaterialf(GL_EMISSION, RGB15(16,16,16));
//ds uses a table for shinyness..this generates a half-ass one
glMaterialShinyness();
//not a real gl function and will likely change
glPolyFmt(POLY_ALPHA(31) | POLY_CULL_BACK);
scanKeys();
u16 keys = keysHeld();
if((keys & KEY_UP)) rotateX += 3;
if((keys & KEY_DOWN)) rotateX -= 3;
if((keys & KEY_LEFT)) rotateY += 3;
if((keys & KEY_RIGHT)) rotateY -= 3;
glBindTexture(0, textureID);
//draw the obj
glBegin(GL_QUAD);
glNormal(NORMAL_PACK(0,inttov10(-1),0));
GFX_TEX_COORD = (TEXTURE_PACK(0, inttot16(128)));
glVertex3v16(floattov16(-0.5), floattov16(-0.5), 0 );
GFX_TEX_COORD = (TEXTURE_PACK(inttot16(128),inttot16(128)));
glVertex3v16(floattov16(0.5), floattov16(-0.5), 0 );
GFX_TEX_COORD = (TEXTURE_PACK(inttot16(128), 0));
glVertex3v16(floattov16(0.5), floattov16(0.5), 0 );
GFX_TEX_COORD = (TEXTURE_PACK(0,0));
glVertex3v16(floattov16(-0.5), floattov16(0.5), 0 );
glEnd();
glPopMatrix(1);
glFlush(0);
swiWaitForVBlank();
}
return 0;
}//end main
int renderModel(struct MODEL * model)
{
int v_one, v_two, v_thr;
int c_one, c_two, c_thr;
//int n_one, n_two, n_thr;
int t_one, t_two, t_thr;
v16 v_x, v_y, v_z;
t16 u_m, v_m;
char r, g, b;
//v16 n_x, n_y, n_z;
int objectC = 0;
int triangleC = 0;
while(objectC < model->header.objectCount)
{
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
unsigned char mat = model->faces.object[objectC].materialID;
unsigned char X = model->materials.material[mat].X;
unsigned char Y = model->materials.material[mat].Y;
unsigned char TX = model->materials.material[mat].TX;
unsigned char TY = model->materials.material[mat].TY;
unsigned char A = model->materials.material[mat].alpha;
unsigned char C = model->materials.material[mat].culling;
glPolyFmt(POLY_ALPHA(A) | C);
if(TX != 0 || TY != 0)
{
glMatrixMode(GL_TEXTURE);
glLoadIdentity();
glTranslatef(model->materials.material[mat].scrollX, model->materials.material[mat].scrollY, 0);
model->materials.material[mat].scrollX += TX;
model->materials.material[mat].scrollY += TY;
}
glBindTexture(GL_TEXTURE_2D, model->textures[mat]);
while(triangleC < model->faces.object[objectC].triangleCount)
{
v_one = model->faces.object[objectC].triangles[triangleC].triangle[0].v;
v_two = model->faces.object[objectC].triangles[triangleC].triangle[1].v;
v_thr = model->faces.object[objectC].triangles[triangleC].triangle[2].v;
c_one = model->faces.object[objectC].triangles[triangleC].triangle[0].c;
c_two = model->faces.object[objectC].triangles[triangleC].triangle[1].c;
c_thr = model->faces.object[objectC].triangles[triangleC].triangle[2].c;
/*n_one = model->faces.object[objectC].triangles[triangleC].triangle[0].n;
n_two = model->faces.object[objectC].triangles[triangleC].triangle[1].n;
n_thr = model->faces.object[objectC].triangles[triangleC].triangle[2].n;*/
t_one = model->faces.object[objectC].triangles[triangleC].triangle[0].t;
t_two = model->faces.object[objectC].triangles[triangleC].triangle[1].t;
t_thr = model->faces.object[objectC].triangles[triangleC].triangle[2].t;
glBegin(GL_TRIANGLES);
glNormal(NORMAL_PACK( 0, 0, 1<<10));
v_x = model->vertices.vertex[v_one].x;
v_y = model->vertices.vertex[v_one].y;
v_z = model->vertices.vertex[v_one].z;
r = model->colors.color[c_one].r;
g = model->colors.color[c_one].g;
b = model->colors.color[c_one].b;
/*n_x = model->normals.normal[n_one].x;
n_y = model->normals.normal[n_one].y;
n_z = model->normals.normal[n_one].z;
glNormal3f(n_x, n_y, n_z);*/
u_m = model->coordinates.coordinate[t_one].u;
v_m = model->coordinates.coordinate[t_one].v;
glColor3b(r,g,b);
glTexCoord2t16(u_m * X,v_m * Y);
glVertex3v16(v_x, v_y, v_z);
v_x = model->vertices.vertex[v_two].x;
v_y = model->vertices.vertex[v_two].y;
v_z = model->vertices.vertex[v_two].z;
r = model->colors.color[c_two].r;
g = model->colors.color[c_two].g;
b = model->colors.color[c_two].b;
/*n_x = model->normals.normal[n_two].x;
n_y = model->normals.normal[n_two].y;
n_z = model->normals.normal[n_two].z;
glNormal3f(n_x, n_y, n_z);*/
u_m = model->coordinates.coordinate[t_two].u;
v_m = model->coordinates.coordinate[t_two].v;
glColor3b(r,g,b);
glTexCoord2t16(u_m * X,v_m * Y);
glVertex3v16(v_x, v_y, v_z);
v_x = model->vertices.vertex[v_thr].x;
v_y = model->vertices.vertex[v_thr].y;
v_z = model->vertices.vertex[v_thr].z;
r = model->colors.color[c_thr].r;
g = model->colors.color[c_thr].g;
b = model->colors.color[c_thr].b;
/*n_x = model->normals.normal[n_thr].x;
n_y = model->normals.normal[n_thr].y;
n_z = model->normals.normal[n_thr].z;
glNormal3f(n_x, n_y, n_z);*/
u_m = model->coordinates.coordinate[t_thr].u;
v_m = model->coordinates.coordinate[t_thr].v;
glColor3b(r,g,b);
glTexCoord2t16(u_m * X,v_m * Y);
glVertex3v16(v_x, v_y, v_z);
glEnd();
triangleC++;
}
glPopMatrix(1);
triangleC = 0;
objectC++;
}
return 1;
}
void IndexedFaceSetNode::glRenderAction(VRMLRenderState& renderState) const
{
/* Retrieve the data item from the context: */
DataItem* dataItem=renderState.contextData.retrieveDataItem<DataItem>(this);
const TextureCoordinateNode* texCoordNode=dynamic_cast<const TextureCoordinateNode*>(texCoord.getPointer());
const ColorNode* colorNode=dynamic_cast<const ColorNode*>(color.getPointer());
const NormalNode* normalNode=dynamic_cast<const NormalNode*>(normal.getPointer());
const CoordinateNode* coordNode=dynamic_cast<const CoordinateNode*>(coord.getPointer());
/* Set up OpenGL: */
if(ccw)
glFrontFace(GL_CCW);
else
glFrontFace(GL_CW);
if(solid)
{
glEnable(GL_CULL_FACE);
glCullFace(GL_BACK);
glLightModeli(GL_LIGHT_MODEL_TWO_SIDE,GL_FALSE);
}
else
{
glDisable(GL_CULL_FACE);
glLightModeli(GL_LIGHT_MODEL_TWO_SIDE,GL_TRUE);
}
if(dataItem->vertexBufferObjectId!=0&&dataItem->indexBufferObjectId!=0)
{
/* Determine which parts of the vertex array to enable: */
int vertexPartsMask=0;
if(texCoordNode!=0)
vertexPartsMask|=GLVertexArrayParts::TexCoord;
if(colorNode!=0)
vertexPartsMask|=GLVertexArrayParts::Color;
if(normalNode!=0)
vertexPartsMask|=GLVertexArrayParts::Normal;
vertexPartsMask|=GLVertexArrayParts::Position;
/* Draw the indexed triangle set: */
GLVertexArrayParts::enable(vertexPartsMask);
glBindBufferARB(GL_ARRAY_BUFFER_ARB,dataItem->vertexBufferObjectId);
glVertexPointer(vertexPartsMask,static_cast<const Vertex*>(0));
glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB,dataItem->indexBufferObjectId);
glDrawElements(GL_TRIANGLES,dataItem->numTriangles*3,GL_UNSIGNED_INT,static_cast<const GLuint*>(0));
glBindBufferARB(GL_ARRAY_BUFFER_ARB,0);
glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB,0);
GLVertexArrayParts::disable(vertexPartsMask);
}
else
{
/* Process all faces: */
std::vector<int>::const_iterator texCoordIt=texCoordIndices.empty()?coordIndices.begin():texCoordIndices.begin();
std::vector<int>::const_iterator colorIt=colorIndices.empty()?coordIndices.begin():colorIndices.begin();
int colorCounter=0;
std::vector<int>::const_iterator normalIt=normalIndices.empty()?coordIndices.begin():normalIndices.begin();
int normalCounter=0;
std::vector<int>::const_iterator coordIt=coordIndices.begin();
while(coordIt!=coordIndices.end())
{
glBegin(GL_POLYGON);
while(*coordIt>=0)
{
if(texCoordNode!=0)
glTexCoord(texCoordNode->getPoint(*texCoordIt));
if(colorNode!=0)
{
if(!colorPerVertex&&colorIndices.empty())
glColor(colorNode->getColor(colorCounter));
else
glColor(colorNode->getColor(*colorIt));
}
if(normalNode!=0)
{
if(!normalPerVertex&&normalIndices.empty())
glNormal(normalNode->getVector(normalCounter));
else
glNormal(normalNode->getVector(*normalIt));
}
glVertex(coordNode->getPoint(*coordIt));
++texCoordIt;
if(colorPerVertex)
++colorIt;
if(normalPerVertex)
++normalIt;
++coordIt;
}
glEnd();
++texCoordIt;
if(!colorPerVertex&&colorIndices.empty())
++colorCounter;
else
++colorIt;
if(!normalPerVertex&&normalIndices.empty())
++normalCounter;
else
++normalIt;
++coordIt;
}
}
/* Reset OpenGL state: */
if(!ccw)
glFrontFace(GL_CCW);
if(!solid)
{
glEnable(GL_CULL_FACE);
glLightModeli(GL_LIGHT_MODEL_TWO_SIDE,GL_FALSE);
}
}
static void drawModel(v16 v[][3], int n[], v16 t[][2], int faces[][3][3], unsigned int nfaces )
{
if (drawMode == 0)
{
glBegin(GL_TRIANGLES);
for (unsigned int i=0; i < nfaces; i++) {
glNormal(n[faces[i][0][2]]);
glVertex3v16v(v[faces[i][0][0]]);
glNormal(n[faces[i][1][2]]);
glVertex3v16v(v[faces[i][1][0]]);
glNormal(n[faces[i][2][2]]);
glVertex3v16v(v[faces[i][2][0]]);
}
glEnd();
}
if (drawMode == 1)
{
glBegin(GL_TRIANGLES);
for (unsigned int i=0; i < nfaces; i++) {
//1
glNormal(n[faces[i][0][2]]);
glVertex3v16v(v[faces[i][0][0]]);
//2
glNormal(n[faces[i][1][2]]);
glVertex3v16v(v[faces[i][1][0]]);
//2
glNormal(n[faces[i][1][2]]);
glVertex3v16v(v[faces[i][1][0]]);
//1
glNormal(n[faces[i][0][2]]);
glVertex3v16v(v[faces[i][0][0]]);
//3
glNormal(n[faces[i][2][2]]);
glVertex3v16v(v[faces[i][2][0]]);
//3
glNormal(n[faces[i][2][2]]);
glVertex3v16v(v[faces[i][2][0]]);
//3
glNormal(n[faces[i][2][2]]);
glVertex3v16v(v[faces[i][2][0]]);
//2
glNormal(n[faces[i][1][2]]);
glVertex3v16v(v[faces[i][1][0]]);
//2
glNormal(n[faces[i][1][2]]);
glVertex3v16v(v[faces[i][1][0]]);
}
glEnd();
}
}
void CylinderPrimitive::initContext(GLContextData& contextData) const
{
/* Create a data item and store it in the context: */
DataItem* dataItem=new DataItem;
contextData.addDataItem(this,dataItem);
/* Create a coordinate system for the cylinder: */
Vector cx=Geometry::normal(axis);
cx.normalize();
Vector cy=Geometry::cross(axis,cx);
cy.normalize();
Vector cz=axis*(length/Scalar(2));
/* Create the cylinder rendering display lists: */
glNewList(dataItem->displayListId,GL_COMPILE);
glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_CULL_FACE);
glBegin(GL_QUAD_STRIP);
glNormal(1.0,0.0,0.0);
glVertex(center+cx*radius+cz);
glVertex(center+cx*radius-cz);
for(int x=1;x<72;++x)
{
Scalar angle=Math::rad(Scalar(x)*Scalar(360/72));
Vector d=cx*Math::cos(angle)+cy*Math::sin(angle);
glNormal(d);
d*=radius;
glVertex(center+d+cz);
glVertex(center+d-cz);
}
glNormal(1.0,0.0,0.0);
glVertex(center+cx*radius+cz);
glVertex(center+cx*radius-cz);
glEnd();
glEndList();
glNewList(dataItem->displayListId+1,GL_COMPILE);
glBlendFunc(GL_ONE,GL_ONE);
glLineWidth(1.0f);
glBegin(GL_LINES);
for(int x=0;x<numX;++x)
{
Scalar angle=Math::rad(Scalar(x)*Scalar(360)/Scalar(numX));
Vector d=cx*Math::cos(angle)+cy*Math::sin(angle);
d*=radius;
glVertex(center+d+cz);
glVertex(center+d-cz);
}
glEnd();
for(int y=0;y<=numY;++y)
{
Point center2=center+axis*((Scalar(y)/Scalar(numY)-Scalar(0.5))*length);
glBegin(GL_LINE_LOOP);
for(int x=0;x<72;++x)
{
Scalar angle=Math::rad(Scalar(x)*Scalar(360/72));
Vector d=cx*Math::cos(angle)+cy*Math::sin(angle);
d*=radius;
glVertex(center2+d);
}
glEnd();
}
glEndList();
}