bool CollisionVolume::testCollision(const VC3 &objectPosition, const VC3 &angles, CollisionData &collisionData, float epsilon)
{
QUAT rotation = getRotation(angles);
//rotation.MakeFromAngles(0, -yRotation, 0);
Matrix tm;
tm.CreateRotationMatrix(rotation);
// Everything's relative etc
VC3 rayOrigin = tm.GetTransformedVector(collisionData.rayOrigin - objectPosition) + objectPosition;
VC3 rayDirection = tm.GetWithoutTranslation().GetTransformedVector(collisionData.rayDirection);
if(!data->possibleCollision(objectPosition, collisionData))
return false;
if(!data->accurateCollision(objectPosition, collisionData, rayOrigin, rayDirection))
return false;
float collisionDistance = objectPosition.GetRangeTo(collisionData.rayOrigin);
VC3 pos = tm.GetInverse().GetTransformedVector(collisionData.collisionPosition - objectPosition) + objectPosition;
if(collisionData.hasCollision)
if(collisionDistance > pos.GetRangeTo(collisionData.rayOrigin))
return false;
collisionData.rayLength = collisionDistance;
collisionData.hasCollision = true;
collisionData.collisionPosition = objectPosition;
collisionData.objectData = data->data;
return true;
}
bool SphereCollision(const VC3 &pos, float radius, Storm3D_CollisionInfo &info, bool accurate)
{
if(pos.GetRangeTo(position) < radius + getRadius())
{
info.hit = true;
return true;
}
return false;
}
float getAmount(const VC3 &pos, float angle, const IStorm3D_Terrain &terrain, float rayHeight) const
{
float fovRadians = fov * (3.1415927f / 180.f);
int index = int(RAY_AMOUNT * (angle + fovRadians) / (2.f * fovRadians));
assert(index >= 0 && index < RAY_AMOUNT);
float distance = pos.GetRangeTo(position);
if(!lengthOk[index])
{
float rayAngle = -fovRadians + float(index) * ((2 * fovRadians) / (RAY_AMOUNT - 1));
VC3 rayDir = direction;
float x = rayDir.x;
float z = rayDir.z;
rayDir.x = x * cosf(rayAngle) + z * sinf(rayAngle);
rayDir.y = 0;
rayDir.z = -x * sinf(rayAngle) + z * cosf(rayAngle);
rayDir.Normalize();
Storm3D_CollisionInfo cInfo;
ObstacleCollisionInfo oInfo;
terrain.rayTrace(position + VC3(0,rayHeight,0) + (rayDir * .5f), rayDir, range, cInfo, oInfo, true, true);
if(oInfo.hit && oInfo.hitAmount > 0)
length[index] = oInfo.ranges[0];
else if(cInfo.hit)
length[index] = cInfo.range;
else
length[index] = range;
lengthOk[index] = true;
}
if(distance > length[index])
return 0;
return 1.f - distance / range;
}
//! Render projection
void Storm3D_FakeSpotlight::renderProjection()
{
if(BUFFER_WIDTH <= 0 || BUFFER_HEIGHT <= 0)
return;
if(!data->renderTarget)
return;
VC3 position = data->properties.position;
position.y -= data->plane.height;
const VC2 &min = data->plane.min;
const VC2 &max = data->plane.max;
float range = data->properties.range * sqrtf(2.f);
VC3 a = position;
a.x += min.x;
a.z += min.y;
float ad = a.GetRangeTo(position) / range;
VC3 b = position;
b.x += min.x;
b.z += max.y;
float bd = b.GetRangeTo(position) / range;
VC3 c = position;
c.x += max.x;
c.z += min.y;
float cd = c.GetRangeTo(position) / range;
VC3 d = position;
d.x += max.x;
d.z += max.y;
float dd = d.GetRangeTo(position) / range;
VC3 e = position;
float ed = 0.f;
ad = bd = cd = dd = 1.f;
float buffer[] =
{
a.x, a.y, a.z, ad, ad, ad, 1.0f,
b.x, b.y, b.z, bd, bd, bd, 1.0f,
c.x, c.y, c.z, cd, cd, cd, 1.0f,
d.x, d.y, d.z, dd, dd, dd, 1.0f,
e.x, e.y, e.z, ed, ed, ed, 1.0f
};
memcpy(data->vertexBuffer.lock(), buffer, 5 * 7 * sizeof(float));
data->vertexBuffer.unlock();
data->vertexBuffer.apply(0);
Storm3D_ShaderManager *manager = Storm3D_ShaderManager::GetSingleton();
manager->setTextureTm(data->properties.shaderProjection[0]);
manager->setSpot(COL(), data->properties.position, data->properties.direction, data->properties.range, .1f);
D3DXMATRIX identity;
D3DXMatrixIdentity(identity);
manager->setSpotTarget(data->properties.targetProjection);
manager->SetWorldTransform(identity);
glEnable(GL_ALPHA_TEST);
glAlphaFunc(GL_GREATER, 1.0f/255.0f);
{
//float factor = data->fadeFactor + data->fogFactor * (1.f - data->fadeFactor);
//float factor = data->fadeFactor * data->fogFactor;
//float factor = data->fadeFactor;
float factor = (1.f - data->fadeFactor) + data->fogFactor * (data->fadeFactor);
float c0[4] = { factor, factor, factor, 1.f };
glProgramEnvParameter4fvARB(GL_FRAGMENT_PROGRAM_ARB, 0, c0);
float fogFactor = data->fogFactor;
float c2[4] = { fogFactor, fogFactor, fogFactor, 1.f };
glProgramEnvParameter4fvARB(GL_FRAGMENT_PROGRAM_ARB, 2, c2);
}
{
float xd = 1.f / float(data->renderTarget->color->getWidth());
float yd = 1.f / float(data->renderTarget->color->getHeight());
float xd1 = xd * 1.5f;
float yd1 = yd * 1.5f;
float xd2 = xd * 2.5f;
float yd2 = yd * 2.5f;
/*
float xd = 1.f / float(sourceDesc.Width);
float yd = 1.f / float(sourceDesc.Height);
float xd1 = xd * 0.5f;
float yd1 = yd * 0.5f;
float xd2 = xd * 1.5f;
float yd2 = yd * 1.5f;
*/
float deltas1[4] = { -xd2, -yd2, 0, 0 };
float deltas2[4] = { -xd1, yd2, 0, 0 };
float deltas3[4] = { xd1, -yd1, 0, 0 };
float deltas4[4] = { xd2, yd1, 0, 0 };
glProgramEnvParameter4fvARB(GL_VERTEX_PROGRAM_ARB, 5, deltas1);
glProgramEnvParameter4fvARB(GL_VERTEX_PROGRAM_ARB, 6, deltas2);
glProgramEnvParameter4fvARB(GL_VERTEX_PROGRAM_ARB, 7, deltas3);
glProgramEnvParameter4fvARB(GL_VERTEX_PROGRAM_ARB, 8, deltas4);
}
data->shadowVertexShader->apply(); // fake_shadow_plane_vertex_shader.txt
data->indexBuffer->render(4, 5);
}
