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move bound proxy rendering to EntityTreeRedering, added helper functions for various bounding boxes

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This commit is contained in:
ZappoMan 2014-09-11 15:36:13 -07:00
parent 2757f16045
commit 9f4d199440
7 changed files with 171 additions and 53 deletions
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80
interface/src/entities/EntityTreeRenderer.cpp
View file

@ -192,6 +192,83 @@ bool EntityTreeRenderer::shouldRenderEntity(float largestDimension, float distan
return (distanceToCamera <= visibleDistanceAtScale);
}
void EntityTreeRenderer::renderProxies(const EntityItem* entity, RenderArgs* args) {
bool isShadowMode = args->_renderMode == OctreeRenderer::SHADOW_RENDER_MODE;
bool displayModelBounds = Menu::getInstance()->isOptionChecked(MenuOption::DisplayModelBounds);
if (!isShadowMode && displayModelBounds) {
PerformanceTimer perfTimer("renderProxies");
AACube maxCube = entity->getMaximumAACube();
AACube minCube = entity->getMinimumAACube();
AABox entityBox = entity->getAABox();
maxCube.scale((float)TREE_SCALE);
minCube.scale((float)TREE_SCALE);
entityBox.scale((float)TREE_SCALE);
glm::vec3 maxCenter = maxCube.calcCenter();
glm::vec3 minCenter = minCube.calcCenter();
glm::vec3 entityBoxCenter = entityBox.calcCenter();
glm::vec3 entityBoxScale = entityBox.getScale();
// draw the max bounding cube
glColor4f(1.0f, 1.0f, 0.0f, 1.0f);
glPushMatrix();
glTranslatef(maxCenter.x, maxCenter.y, maxCenter.z);
glutWireCube(maxCube.getScale());
glPopMatrix();
// draw the min bounding cube
glColor4f(0.0f, 1.0f, 0.0f, 1.0f);
glPushMatrix();
glTranslatef(minCenter.x, minCenter.y, minCenter.z);
glutWireCube(minCube.getScale());
glPopMatrix();
// draw the entityBox bounding box
glColor4f(0.0f, 0.0f, 1.0f, 1.0f);
glPushMatrix();
glTranslatef(entityBoxCenter.x, entityBoxCenter.y, entityBoxCenter.z);
glScalef(entityBoxScale.x, entityBoxScale.y, entityBoxScale.z);
glutWireCube(1.0f);
glPopMatrix();
glm::vec3 position = entity->getPosition() * (float)TREE_SCALE;
glm::vec3 center = entity->getCenter() * (float)TREE_SCALE;
glm::vec3 dimensions = entity->getDimensions() * (float)TREE_SCALE;
glm::quat rotation = entity->getRotation();
glColor4f(1.0f, 0.0f, 1.0f, 1.0f);
glPushMatrix();
glTranslatef(position.x, position.y, position.z);
glm::vec3 axis = glm::axis(rotation);
glRotatef(glm::degrees(glm::angle(rotation)), axis.x, axis.y, axis.z);
glPushMatrix();
glm::vec3 positionToCenter = center - position;
glTranslatef(positionToCenter.x, positionToCenter.y, positionToCenter.z);
glScalef(dimensions.x, dimensions.y, dimensions.z);
glutWireCube(1.0f);
glPopMatrix();
glPopMatrix();
/*
glPushMatrix();
// draw the model relative bounding box
glm::vec3 axis = glm::axis(rotation);
glRotatef(glm::degrees(glm::angle(rotation)), axis.x, axis.y, axis.z);
glScalef(width * modelScale.x, height * modelScale.y, depth * modelScale.z);
glColor3f(0.0f, 1.0f, 0.0f);
glutWireCube(1.0);
glPopMatrix();
*/
}
}
void EntityTreeRenderer::renderElement(OctreeElement* element, RenderArgs* args) {
args->_elementsTouched++;
// actually render it here...
@ -226,6 +303,9 @@ void EntityTreeRenderer::renderElement(OctreeElement* element, RenderArgs* args)
float distance = distanceToCamera(entityCube.calcCenter(), *args->_viewFrustum);
if (shouldRenderEntity(entityCube.getLargestDimension(), distance) &&
args->_viewFrustum->cubeInFrustum(entityCube) != ViewFrustum::OUTSIDE) {
renderProxies(entityItem, args);
Glower* glower = NULL;
if (entityItem->getGlowLevel() > 0.0f) {

1
interface/src/entities/EntityTreeRenderer.h
View file

@ -79,6 +79,7 @@ private:
float distanceToCamera(const glm::vec3& center, const ViewFrustum& viewFrustum) const;
bool shouldRenderEntity(float largestDimension, float distanceToCamera) const;
void renderProxies(const EntityItem* entity, RenderArgs* args);
};

16
interface/src/entities/RenderableBoxEntityItem.cpp
View file

@ -38,20 +38,24 @@ void RenderableBoxEntityItem::render(RenderArgs* args) {
glm::vec3 halfDimensions = dimensions / 2.0f;
glm::quat rotation = getRotation();
const bool useGlutCube = false;
const bool useGlutCube = true;
if (useGlutCube) {
glColor3ub(getColor()[RED_INDEX], getColor()[GREEN_INDEX], getColor()[BLUE_INDEX]);
glPushMatrix();
glTranslatef(center.x, center.y, center.z);
glTranslatef(position.x, position.y, position.z);
glm::vec3 axis = glm::axis(rotation);
glRotatef(glm::degrees(glm::angle(rotation)), axis.x, axis.y, axis.z);
glScalef(dimensions.x, dimensions.y, dimensions.z);
glutSolidCube(1.0f);
glPushMatrix();
glm::vec3 positionToCenter = center - position;
glTranslatef(positionToCenter.x, positionToCenter.y, positionToCenter.z);
glScalef(dimensions.x, dimensions.y, dimensions.z);
glutSolidCube(1.0f);
glPopMatrix();
glPopMatrix();
} else {
static GLfloat vertices[] = { 1, 1, 1, -1, 1, 1, -1,-1, 1, 1,-1, 1, // v0,v1,v2,v3 (front)
1, 1, 1, 1,-1, 1, 1,-1,-1, 1, 1,-1, // v0,v3,v4,v5 (right)
1, 1, 1, 1, 1,-1, -1, 1,-1, -1, 1, 1, // v0,v5,v6,v1 (top)

46
interface/src/entities/RenderableModelEntityItem.cpp
View file

@ -128,52 +128,6 @@ void RenderableModelEntityItem::render(RenderArgs* args) {
glutWireCube(size);
glPopMatrix();
}
bool isShadowMode = args->_renderMode == OctreeRenderer::SHADOW_RENDER_MODE;
bool displayModelBounds = Menu::getInstance()->isOptionChecked(MenuOption::DisplayModelBounds);
if (!isShadowMode && displayModelBounds) {
PerformanceTimer perfTimer("displayModelBounds");
glm::vec3 unRotatedMinimum = _model->getUnscaledMeshExtents().minimum;
glm::vec3 unRotatedMaximum = _model->getUnscaledMeshExtents().maximum;
glm::vec3 unRotatedExtents = unRotatedMaximum - unRotatedMinimum;
float width = unRotatedExtents.x;
float height = unRotatedExtents.y;
float depth = unRotatedExtents.z;
Extents rotatedExtents = _model->getUnscaledMeshExtents();
rotatedExtents.rotate(rotation);
glm::vec3 rotatedSize = rotatedExtents.maximum - rotatedExtents.minimum;
const glm::vec3& modelScale = _model->getScale();
glPushMatrix();
glTranslatef(position.x, position.y, position.z);
// draw the orignal bounding cube
glColor4f(1.0f, 1.0f, 0.0f, 1.0f);
glutWireCube(size);
// draw the rotated bounding cube
glColor4f(0.0f, 0.0f, 1.0f, 1.0f);
glPushMatrix();
glScalef(rotatedSize.x * modelScale.x, rotatedSize.y * modelScale.y, rotatedSize.z * modelScale.z);
glutWireCube(1.0);
glPopMatrix();
// draw the model relative bounding box
glm::vec3 axis = glm::axis(rotation);
glRotatef(glm::degrees(glm::angle(rotation)), axis.x, axis.y, axis.z);
glScalef(width * modelScale.x, height * modelScale.y, depth * modelScale.z);
glColor3f(0.0f, 1.0f, 0.0f);
glutWireCube(1.0);
glPopMatrix();
}
} else {
// if we couldn't get a model, then just draw a cube
glColor3ub(getColor()[RED_INDEX],getColor()[GREEN_INDEX],getColor()[BLUE_INDEX]);

72
libraries/entities/src/EntityItem.cpp
View file

@ -715,6 +715,8 @@ bool EntityItem::setProperties(const EntityItemProperties& properties, bool forc
return somethingChanged;
}
// TODO: is this really correct? how do we use size, does it need to handle rotation?
float EntityItem::getSize() const {
return glm::length(_dimensions);
}
@ -738,10 +740,80 @@ glm::vec3 EntityItem::getMaximumPoint() const {
return _position + (_dimensions * registrationRemainder);
}
// TODO: doesn't this need to handle rotation?
glm::vec3 EntityItem::getCenter() const {
return _position + (_dimensions * (glm::vec3(0.5f,0.5f,0.5f) - _registrationPoint));
}
/// The maximum bounding cube for the entity, independent of it's rotation.
/// This accounts for the registration point (upon which rotation occurs around).
///
AACube EntityItem::getMaximumAACube() const {
// * we know that the position is the center of rotation
glm::vec3 centerOfRotation = _position; // also where _registration point is
// * we know that the registration point is the center of rotation
// * we can calculate the length of the furthest extent from the registration point
// as the dimensions * max (registrationPoint, (1.0,1.0,1.0) - registrationPoint)
glm::vec3 registrationPoint = (_dimensions * _registrationPoint);
glm::vec3 registrationRemainder = (_dimensions * (glm::vec3(1.0f, 1.0f, 1.0f) - _registrationPoint));
glm::vec3 furthestExtentFromRegistration = glm::max(registrationPoint, registrationRemainder);
// * we know that if you rotate in any direction you would create a sphere
// that has a radius of the length of furthest extent from registration point
float radius = glm::length(furthestExtentFromRegistration);
// * we know that the minimum bounding cube of this maximum possible sphere is
// (center - radius) to (center + radius)
glm::vec3 minimumCorner = centerOfRotation - glm::vec3(radius, radius, radius);
AACube boundingCube(minimumCorner, radius * 2.0f);
return boundingCube;
}
/// The minimum bounding cube for the entity accounting for it's rotation.
/// This accounts for the registration point (upon which rotation occurs around).
///
AACube EntityItem::getMinimumAACube() const {
// _position represents the position of the registration point.
glm::vec3 registrationRemainder = glm::vec3(1.0f, 1.0f, 1.0f) - _registrationPoint;
glm::vec3 unrotatedMinRelativeToEntity = glm::vec3(0.0f, 0.0f, 0.0f) - (_dimensions * _registrationPoint);
glm::vec3 unrotatedMaxRelativeToEntity = _dimensions * registrationRemainder;
Extents unrotatedExtentsRelativeToRegistrationPoint = { unrotatedMinRelativeToEntity, unrotatedMaxRelativeToEntity };
Extents rotatedExtentsRelativeToRegistrationPoint = unrotatedExtentsRelativeToRegistrationPoint.getRotated(getRotation());
// shift the extents to be relative to the position/registration point
rotatedExtentsRelativeToRegistrationPoint.shiftBy(_position);
// the cube that best encompasses extents is...
AABox box(rotatedExtentsRelativeToRegistrationPoint);
glm::vec3 centerOfBox = box.calcCenter();
float longestSide = box.getLargestDimension();
float halfLongestSide = longestSide / 2.0f;
glm::vec3 cornerOfCube = centerOfBox - glm::vec3(halfLongestSide, halfLongestSide, halfLongestSide);
// old implementation... not correct!!!
return AACube(cornerOfCube, longestSide);
}
AABox EntityItem::getAABox() const {
// _position represents the position of the registration point.
glm::vec3 registrationRemainder = glm::vec3(1.0f, 1.0f, 1.0f) - _registrationPoint;
glm::vec3 unrotatedMinRelativeToEntity = glm::vec3(0.0f, 0.0f, 0.0f) - (_dimensions * _registrationPoint);
glm::vec3 unrotatedMaxRelativeToEntity = _dimensions * registrationRemainder;
Extents unrotatedExtentsRelativeToRegistrationPoint = { unrotatedMinRelativeToEntity, unrotatedMaxRelativeToEntity };
Extents rotatedExtentsRelativeToRegistrationPoint = unrotatedExtentsRelativeToRegistrationPoint.getRotated(getRotation());
// shift the extents to be relative to the position/registration point
rotatedExtentsRelativeToRegistrationPoint.shiftBy(_position);
return AABox(rotatedExtentsRelativeToRegistrationPoint);
}
// NOTE: This should only be used in cases of old bitstreams which only contain radius data
// 0,0,0 --> maxDimension,maxDimension,maxDimension

5
libraries/entities/src/EntityItem.h
View file

@ -198,7 +198,10 @@ public:
float getSize() const; /// get maximum dimension in domain scale units (0.0 - 1.0)
glm::vec3 getMinimumPoint() const;
glm::vec3 getMaximumPoint() const;
AACube getAACube() const { return AACube(getMinimumPoint(), getSize()); } /// AACube in domain scale units (0.0 - 1.0)
AACube getMaximumAACube() const;
AACube getMinimumAACube() const;
AACube getAACube() const { return getMaximumAACube(); } /// axis aligned bounding cube in domain scale units (0.0 - 1.0)
AABox getAABox() const; /// axis aligned bounding box in domain scale units (0.0 - 1.0)
static const QString DEFAULT_SCRIPT;
const QString& getScript() const { return _script; }

4
libraries/shared/src/Extents.h
View file

@ -35,6 +35,10 @@ public:
/// \return whether or not the extents are empty
bool isEmpty() const { return minimum == maximum; }
bool isValid() const { return !((minimum == glm::vec3(FLT_MAX)) && (maximum == glm::vec3(-FLT_MAX))); }
/// \param vec3 for delta amount to shift the extents by
/// \return true if point is within current limits
void shiftBy(const glm::vec3& delta) { minimum += delta; maximum += delta; }
/// rotate the extents around orign by rotation
void rotate(const glm::quat& rotation);