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This commit is contained in:
Zach Fox 2018-11-07 14:51:19 -08:00
parent 668e4aeafd
commit d2d5132f72
3 changed files with 67 additions and 48 deletions
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47
interface/src/Application.cpp
View file

@ -5585,32 +5585,39 @@ void Application::updateSecondaryCameraViewFrustum() {
}
ViewFrustum secondaryViewFrustum;
if (camera->portalProjection && !camera->attachedEntityId.isNull()) {
if (camera->portalProjection && !camera->attachedEntityId.isNull() && !camera->portalEntranceEntityId.isNull()) {
auto entityScriptingInterface = DependencyManager::get<EntityScriptingInterface>();
auto entityProperties = entityScriptingInterface->getEntityProperties(camera->attachedEntityId);
glm::vec3 mirrorPropertiesPosition = entityProperties.getPosition();
glm::quat mirrorPropertiesRotation = entityProperties.getRotation();
glm::vec3 mirrorPropertiesDimensions = entityProperties.getDimensions();
glm::vec3 halfMirrorPropertiesDimensions = 0.5f * mirrorPropertiesDimensions;
EntityItemPointer portalEntrance = qApp->getEntities()->getTree()->findEntityByID(camera->portalEntranceEntityId);
EntityItemPointer portalExit = qApp->getEntities()->getTree()->findEntityByID(camera->attachedEntityId);
glm::mat4 worldFromMirrorRotation = glm::mat4_cast(mirrorPropertiesRotation) * glm::scale(vec3(1.0f, 1.0f, 1.0f));
glm::mat4 worldFromMirrorTranslation = glm::translate(mirrorPropertiesPosition);
glm::mat4 worldFromMirror = worldFromMirrorTranslation * worldFromMirrorRotation;
glm::mat4 mirrorFromWorld = glm::inverse(worldFromMirror);
glm::vec3 portalEntrancePropertiesPosition = portalEntrance->getWorldPosition();
glm::quat portalEntrancePropertiesRotation = portalEntrance->getWorldOrientation();
glm::mat4 worldFromPortalEntranceRotation = glm::mat4_cast(portalEntrancePropertiesRotation);
glm::mat4 worldFromPortalEntranceTranslation = glm::translate(portalEntrancePropertiesPosition);
glm::mat4 worldFromPortalEntrance = worldFromPortalEntranceTranslation * worldFromPortalEntranceRotation;
glm::mat4 portalEntranceFromWorld = glm::inverse(worldFromPortalEntrance);
glm::vec3 portalExitPropertiesPosition = portalExit->getWorldPosition();
glm::quat portalExitPropertiesRotation = portalExit->getWorldOrientation();
glm::vec3 portalExitPropertiesDimensions = portalExit->getScaledDimensions();
glm::vec3 halfPortalExitPropertiesDimensions = 0.5f * portalExitPropertiesDimensions;
glm::mat4 worldFromPortalExitRotation = glm::mat4_cast(portalExitPropertiesRotation);
glm::mat4 worldFromPortalExitTranslation = glm::translate(portalExitPropertiesPosition);
glm::mat4 worldFromPortalExit = worldFromPortalExitTranslation * worldFromPortalExitRotation;
glm::vec3 mainCameraPositionWorld = getCamera().getPosition();
glm::vec3 mainCameraPositionMirror = vec3(mirrorFromWorld * vec4(mainCameraPositionWorld, 1.0f));
glm::vec3 mirrorCameraPositionMirror = vec3(mainCameraPositionMirror.x, mainCameraPositionMirror.y,
mainCameraPositionMirror.z);
glm::vec3 mirrorCameraPositionWorld = vec3(worldFromMirror * vec4(mirrorCameraPositionMirror, 1.0f));
glm::vec3 mainCameraPositionPortalEntrance = vec3(portalEntranceFromWorld * vec4(mainCameraPositionWorld, 1.0f));
glm::vec3 portalExitCameraPositionWorld = vec3(worldFromPortalExit * vec4(mainCameraPositionPortalEntrance, 1.0f));
glm::quat mirrorCameraOrientation = glm::quat_cast(worldFromMirrorRotation);
secondaryViewFrustum.setPosition(mirrorCameraPositionWorld);
secondaryViewFrustum.setOrientation(mirrorCameraOrientation);
secondaryViewFrustum.setPosition(portalExitCameraPositionWorld);
secondaryViewFrustum.setOrientation(portalExitPropertiesRotation);
float nearClip = mirrorCameraPositionMirror.z + mirrorPropertiesDimensions.z * 2.0f;
glm::vec3 upperRight = halfMirrorPropertiesDimensions - mirrorCameraPositionMirror;
glm::vec3 bottomLeft = -halfMirrorPropertiesDimensions - mirrorCameraPositionMirror;
float nearClip = mainCameraPositionPortalEntrance.z + portalExitPropertiesDimensions.z * 2.0f;
// `mainCameraPositionPortalEntrance` should technically be `mainCameraPositionPortalExit`,
// but the values are the same.
glm::vec3 upperRight = halfPortalExitPropertiesDimensions - mainCameraPositionPortalEntrance;
glm::vec3 bottomLeft = -halfPortalExitPropertiesDimensions - mainCameraPositionPortalEntrance;
glm::mat4 frustum = glm::frustum(bottomLeft.x, upperRight.x, bottomLeft.y, upperRight.y, nearClip, camera->farClipPlaneDistance);
secondaryViewFrustum.setProjection(frustum);
} else if (camera->mirrorProjection && !camera->attachedEntityId.isNull()) {

66
interface/src/SecondaryCamera.cpp
View file

@ -33,6 +33,7 @@ public:
void configure(const Config& config) {
_attachedEntityId = config.attachedEntityId;
_portalEntranceEntityId = config.portalEntranceEntityId;
_position = config.position;
_orientation = config.orientation;
_vFoV = config.vFoV;
@ -45,43 +46,51 @@ public:
}
void setPortalProjection(ViewFrustum& srcViewFrustum) {
if (_attachedEntityId.isNull()) {
qWarning() << "ERROR: Cannot set mirror projection for SecondaryCamera without an attachedEntityId set.";
return;
}
EntityItemPointer attachedEntity = qApp->getEntities()->getTree()->findEntityByID(_attachedEntityId);
if (!attachedEntity) {
qWarning() << "ERROR: Cannot get EntityItemPointer for _attachedEntityId.";
if (_portalEntranceEntityId.isNull() || _attachedEntityId.isNull()) {
qWarning() << "ERROR: Cannot set portal projection for SecondaryCamera without an attachedEntityId AND portalEntranceEntityId set.";
return;
}
glm::vec3 mirrorPropertiesPosition = attachedEntity->getWorldPosition();
glm::quat mirrorPropertiesRotation = attachedEntity->getWorldOrientation();
glm::vec3 mirrorPropertiesDimensions = attachedEntity->getScaledDimensions();
glm::vec3 halfMirrorPropertiesDimensions = 0.5f * mirrorPropertiesDimensions;
EntityItemPointer portalEntrance = qApp->getEntities()->getTree()->findEntityByID(_portalEntranceEntityId);
if (!portalEntrance) {
qWarning() << "ERROR: Cannot get EntityItemPointer for portalEntrance.";
return;
}
glm::mat4 worldFromMirrorRotation = glm::mat4_cast(mirrorPropertiesRotation);
glm::mat4 worldFromMirrorTranslation = glm::translate(mirrorPropertiesPosition);
glm::mat4 worldFromMirror = worldFromMirrorTranslation * worldFromMirrorRotation;
glm::mat4 mirrorFromWorld = glm::inverse(worldFromMirror);
EntityItemPointer portalExit = qApp->getEntities()->getTree()->findEntityByID(_attachedEntityId);
if (!portalExit) {
qWarning() << "ERROR: Cannot get EntityItemPointer for portalExit.";
return;
}
glm::vec3 portalEntrancePropertiesPosition = portalEntrance->getWorldPosition();
glm::quat portalEntrancePropertiesRotation = portalEntrance->getWorldOrientation();
glm::mat4 worldFromPortalEntranceRotation = glm::mat4_cast(portalEntrancePropertiesRotation);
glm::mat4 worldFromPortalEntranceTranslation = glm::translate(portalEntrancePropertiesPosition);
glm::mat4 worldFromPortalEntrance = worldFromPortalEntranceTranslation * worldFromPortalEntranceRotation;
glm::mat4 portalEntranceFromWorld = glm::inverse(worldFromPortalEntrance);
glm::vec3 portalExitPropertiesPosition = portalExit->getWorldPosition();
glm::quat portalExitPropertiesRotation = portalExit->getWorldOrientation();
glm::vec3 portalExitPropertiesDimensions = portalExit->getScaledDimensions();
glm::vec3 halfPortalExitPropertiesDimensions = 0.5f * portalExitPropertiesDimensions;
glm::mat4 worldFromPortalExitRotation = glm::mat4_cast(portalExitPropertiesRotation);
glm::mat4 worldFromPortalExitTranslation = glm::translate(portalExitPropertiesPosition);
glm::mat4 worldFromPortalExit = worldFromPortalExitTranslation * worldFromPortalExitRotation;
glm::vec3 mainCameraPositionWorld = qApp->getCamera().getPosition();
glm::vec3 mainCameraPositionMirror = vec3(mirrorFromWorld * vec4(mainCameraPositionWorld, 1.0f));
glm::vec3 mirrorCameraPositionMirror = vec3(mainCameraPositionMirror.x, mainCameraPositionMirror.y,
mainCameraPositionMirror.z);
glm::vec3 mirrorCameraPositionWorld = vec3(worldFromMirror * vec4(mirrorCameraPositionMirror, 1.0f));
glm::vec3 mainCameraPositionPortalEntrance = vec3(portalEntranceFromWorld * vec4(mainCameraPositionWorld, 1.0f));
glm::vec3 portalExitCameraPositionWorld = vec3(worldFromPortalExit * vec4(mainCameraPositionPortalEntrance, 1.0f));
// set frustum position to be mirrored camera and set orientation to mirror's adjusted rotation
glm::quat mirrorCameraOrientation = glm::quat_cast(worldFromMirrorRotation);
srcViewFrustum.setPosition(mirrorCameraPositionWorld);
srcViewFrustum.setOrientation(mirrorCameraOrientation);
srcViewFrustum.setPosition(portalExitCameraPositionWorld);
srcViewFrustum.setOrientation(portalExitPropertiesRotation);
// build frustum using mirror space translation of mirrored camera
float nearClip = mirrorCameraPositionMirror.z + mirrorPropertiesDimensions.z * 2.0f;
glm::vec3 upperRight = halfMirrorPropertiesDimensions - mirrorCameraPositionMirror;
glm::vec3 bottomLeft = -halfMirrorPropertiesDimensions - mirrorCameraPositionMirror;
float nearClip = mainCameraPositionPortalEntrance.z + portalExitPropertiesDimensions.z * 2.0f;
// `mainCameraPositionPortalEntrance` should technically be `mainCameraPositionPortalExit`,
// but the values are the same.
glm::vec3 upperRight = halfPortalExitPropertiesDimensions - mainCameraPositionPortalEntrance;
glm::vec3 bottomLeft = -halfPortalExitPropertiesDimensions - mainCameraPositionPortalEntrance;
glm::mat4 frustum = glm::frustum(bottomLeft.x, upperRight.x, bottomLeft.y, upperRight.y, nearClip, _farClipPlaneDistance);
srcViewFrustum.setProjection(frustum);
}
@ -194,6 +203,7 @@ protected:
private:
QUuid _attachedEntityId;
QUuid _portalEntranceEntityId;
glm::vec3 _position;
glm::quat _orientation;
float _vFoV;

2
interface/src/SecondaryCamera.h
View file

@ -20,6 +20,7 @@
class SecondaryCameraJobConfig : public render::Task::Config { // Exposes secondary camera parameters to JavaScript.
Q_OBJECT
Q_PROPERTY(QUuid attachedEntityId MEMBER attachedEntityId NOTIFY dirty) // entity whose properties define camera position and orientation
Q_PROPERTY(QUuid portalEntranceEntityId MEMBER portalEntranceEntityId NOTIFY dirty) // entity whose properties define a portal's entrance position and orientation
Q_PROPERTY(glm::vec3 position READ getPosition WRITE setPosition) // of viewpoint to render from
Q_PROPERTY(glm::quat orientation READ getOrientation WRITE setOrientation) // of viewpoint to render from
Q_PROPERTY(float vFoV MEMBER vFoV NOTIFY dirty) // Secondary camera's vertical field of view. In degrees.
@ -29,6 +30,7 @@ class SecondaryCameraJobConfig : public render::Task::Config { // Exposes second
Q_PROPERTY(bool portalProjection MEMBER portalProjection NOTIFY dirty) // Flag to use attached portal entity to build frustum for the portal and set portal camera position/orientation.
public:
QUuid attachedEntityId;
QUuid portalEntranceEntityId;
glm::vec3 position;
glm::quat orientation;
float vFoV { DEFAULT_FIELD_OF_VIEW_DEGREES };