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Subtract working, but reflected normals being returned... and where did my plane and cyl go?

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git-svn-id: svn://anubis/fart/trunk@159 7f9b0f55-74a9-4bce-be96-3c2cd072584d
This commit is contained in:
Josh Holtrop 2009-02-28 00:06:12 +00:00
parent ef25fe4a5b
commit 5035c80d94
4 changed files with 41 additions and 28 deletions
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2
main/Lighting.cc
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@ -28,7 +28,7 @@ Color Lighting::computePhong(const refptr<Material> material,
directionToLight.reflect(surfaceNormal);
/* calculate the diffuse term */
double diffuse_coef = directionToLight % surfaceNormal;
double diffuse_coef = fabs(directionToLight % surfaceNormal);
if (diffuse_coef > 0.0)
{
result += diffuseColor

23
main/Scene-load.cc
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@ -45,6 +45,29 @@ void Scene::load(const char * filename)
m_transform.rotate(-20, 0, 1, 0);
m_transform.translate(2, 2, 1);
m = new Material();
m->setDiffuseColor(Color::magenta);
m->setAmbientColor(Color::magenta);
m_transform.translate(2.5, 1, -1.5);
shape1 = new Box(new Vector(1, 1, 1));
shape1->setMaterial(m);
shape1->setTransform(m_transform);
m = new Material();
m->setDiffuseColor(Color::yellow);
m->setAmbientColor(Color::yellow);
shape2 = new Sphere(0.6);
m_transform.translate(-0.5, -0.5, 0.5);
shape2->setTransform(m_transform);
shape2->setMaterial(m);
shape = new Subtract(shape1, shape2);
m_shapes.push_back(shape);
m_transform.translate(-2.0, 0.5, 1.0);
m = new Material();
m->setDiffuseColor(Color::blue);
m->setAmbientColor(Color::blue);

8
main/Scene.cc
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@ -180,10 +180,10 @@ vector<Scene::ShapeDistance> Scene::getRayHits(const Ray & ray)
refptr<Shape> shape = intersections[i].shape;
const Vector & isect_point = intersections[i].vector;
Vector normal = shape->getNormalAt(isect_point);
double dot = normal % ray.getDirection();
// double dot = normal % ray.getDirection();
double intersect_dist = (isect_point - ray.getOrigin()).mag();
if (dot < 0.0) /* cull back faces */
{
// if (dot < 0.0) /* cull back faces */
// {
double transparency = (*it)->getTransparency();
if (transparency == 0.0 &&
(minSolidDist == 0.0 || minSolidDist > intersect_dist))
@ -194,7 +194,7 @@ vector<Scene::ShapeDistance> Scene::getRayHits(const Ray & ray)
{
hits.push_back(ShapeDistance(shape, intersect_dist));
}
}
// }
}
}

16
shapes/Subtract.cc
View File

@ -26,33 +26,23 @@ Shape::IntersectionList Subtract::intersect(refptr<Shape> _this, const Ray & ray
double dot = - (ray.getDirection() % normal);
bool front = dot > 0.0;
bool left = merged[i].left;
if (front)
{
if (left)
in1 = true;
in1 = front;
else
in2 = true;
in2 = front;
if (!in_bool && in1 && !in2)
{
/* we found an intersection point with the boolean object */
in_bool = true;
res.add( merged[i].intersection );
}
}
else
{
if (left)
in1 = false;
else
in2 = false;
if (in_bool && !(in1 && !in2))
else if (in_bool && !(in1 && !in2))
{
/* we found an intersection point with the boolean object */
res.add( merged[i].intersection );
in_bool = false;
}
}
}
return res;
}