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#include "Mesh.h"
#include "SyntopiaCore/Math/Vector3.h"
#include "../Logging/Logging.h"
using namespace SyntopiaCore::Logging;
using namespace SyntopiaCore::Math;
namespace SyntopiaCore {
namespace GLEngine {
Mesh::Mesh(SyntopiaCore::Math::Vector3f startBase,
SyntopiaCore::Math::Vector3f startDir1 ,
SyntopiaCore::Math::Vector3f startDir2,
SyntopiaCore::Math::Vector3f endBase,
SyntopiaCore::Math::Vector3f endDir1 ,
SyntopiaCore::Math::Vector3f endDir2) :
startBase(startBase), startDir1(startDir1), startDir2(startDir2),
endBase(endBase), endDir1(endDir1), endDir2(endDir2)
{
/// Bounding Mesh (not really accurate)
from = startBase;
to = startBase;
Expand(from,to, startBase+startDir1);
Expand(from,to, startBase+startDir2);
Expand(from,to, startBase+startDir2+startDir1);
Expand(from,to, endBase);
Expand(from,to, endBase+endDir1);
Expand(from,to, endBase+endDir2);
Expand(from,to, endBase+endDir1+endDir2);
};
Mesh::~Mesh() { };
void Mesh::draw() const {
// --- TODO: Rewrite - way to many state changes...
glPushMatrix();
glTranslatef( startBase.x(), startBase.y(), startBase.z() );
GLfloat col[4] = {0.0f, 1.0f, 1.0f, 0.1f} ;
glMaterialfv( GL_FRONT, GL_AMBIENT_AND_DIFFUSE, col );
glPolygonMode(GL_FRONT, GL_FILL);
glPolygonMode(GL_BACK, GL_FILL);
Vector3f O(0,0,0);
Vector3f end = endBase - startBase;
glEnable (GL_LIGHTING);
glDisable(GL_CULL_FACE); // TODO: do we need this?
glEnable (GL_BLEND);
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
GLfloat c3[4] = {0.3f, 0.3f, 0.3f, 0.5f};
glMaterialfv( GL_FRONT, GL_SPECULAR, c3 );
glMateriali(GL_FRONT, GL_SHININESS, 127);
glColorMaterial(GL_FRONT, GL_AMBIENT_AND_DIFFUSE);
glEnable(GL_COLOR_MATERIAL);
glBegin( GL_QUADS );
glColor4fv(primaryColor);
GLfloat secondaryColor[4] = {oldRgb[0], oldRgb[1], oldRgb[2], oldAlpha};
//vertex4n(O, startDir1,startDir2+startDir1,startDir2);
Vector3f c1(startDir1*0.5f+startDir2*0.5f);
Vector3f c2(end+endDir1*0.5f+endDir2*0.5f);
vertex4(primaryColor, c1, O, startDir1, secondaryColor,c2, end+endDir1,end,false);
vertex4(primaryColor,c1, O, startDir2, secondaryColor,c2, end+endDir2,end,false);
vertex4(primaryColor,c1, startDir1, startDir1+startDir2,secondaryColor,c2, end+endDir1+endDir2, end+endDir1,false);
vertex4(primaryColor,c1, startDir2, startDir1+startDir2,secondaryColor,c2, end+endDir1+endDir2, end+endDir2,false);
//vertex4n(O+end, endDir1+end,endDir2+endDir1+end,endDir2+end);
glEnd();
glDisable(GL_COLOR_MATERIAL);
glPopMatrix();
};
bool Mesh::intersectsRay(RayInfo* ri) {
if (triangles.count()==0) initTriangles();
for (int i = 0; i < triangles.count(); i++) {
if (triangles[i].intersectsRay(ri)) return true;
}
return false;
};
void Mesh::initTriangles() {
triangles.clear();
RaytraceTriangle::Vertex4(startBase, startBase+startDir1,endBase+endDir1,endBase, true,triangles,primaryColor[0],primaryColor[1],primaryColor[2],primaryColor[3]);
RaytraceTriangle::Vertex4(startBase, endBase,endBase+endDir2,startBase+startDir2, true,triangles,primaryColor[0],primaryColor[1],primaryColor[2],primaryColor[3]);
RaytraceTriangle::Vertex4(startBase+startDir1, startBase+startDir1+startDir2, endBase+endDir1+endDir2, endBase+endDir1, true,triangles,primaryColor[0],primaryColor[1],primaryColor[2],primaryColor[3]);
RaytraceTriangle::Vertex4(startBase+startDir2, endBase+endDir2, endBase+endDir1+endDir2, startBase+startDir1+startDir2, true,triangles,primaryColor[0],primaryColor[1],primaryColor[2],primaryColor[3]);
from = startBase;
to = startBase;
for (int i = 0; i < triangles.count(); i++) {
triangles[i].expandBoundingBox(from,to);
}
}
bool Mesh::intersectsAABB(Vector3f from2, Vector3f to2) {
if (triangles.count()==0) initTriangles();
return
(from.x() < to2.x()) && (to.x() > from2.x()) &&
(from.y() < to2.y()) && (to.y() > from2.y()) &&
(from.z() < to2.z()) && (to.z() > from2.z());
};
}
}
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