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The Beginnings

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This commit is contained in:
Zach Fox 2018-11-07 11:55:10 -08:00
parent 5e01314d85
commit 668e4aeafd
3 changed files with 87 additions and 3 deletions
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30
interface/src/Application.cpp
View file

@ -5585,7 +5585,35 @@ void Application::updateSecondaryCameraViewFrustum() {
}
ViewFrustum secondaryViewFrustum;
if (camera->mirrorProjection && !camera->attachedEntityId.isNull()) {
if (camera->portalProjection && !camera->attachedEntityId.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;
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 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::quat mirrorCameraOrientation = glm::quat_cast(worldFromMirrorRotation);
secondaryViewFrustum.setPosition(mirrorCameraPositionWorld);
secondaryViewFrustum.setOrientation(mirrorCameraOrientation);
float nearClip = mirrorCameraPositionMirror.z + mirrorPropertiesDimensions.z * 2.0f;
glm::vec3 upperRight = halfMirrorPropertiesDimensions - mirrorCameraPositionMirror;
glm::vec3 bottomLeft = -halfMirrorPropertiesDimensions - mirrorCameraPositionMirror;
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()) {
auto entityScriptingInterface = DependencyManager::get<EntityScriptingInterface>();
auto entityProperties = entityScriptingInterface->getEntityProperties(camera->attachedEntityId);
glm::vec3 mirrorPropertiesPosition = entityProperties.getPosition();

58
interface/src/SecondaryCamera.cpp
View file

@ -40,7 +40,50 @@ public:
_farClipPlaneDistance = config.farClipPlaneDistance;
_textureWidth = config.textureWidth;
_textureHeight = config.textureHeight;
_mirrorProjection = config.mirrorProjection;
_mirrorProjection = config.mirrorProjection;
_portalProjection = config.portalProjection;
}
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.";
return;
}
glm::vec3 mirrorPropertiesPosition = attachedEntity->getWorldPosition();
glm::quat mirrorPropertiesRotation = attachedEntity->getWorldOrientation();
glm::vec3 mirrorPropertiesDimensions = attachedEntity->getScaledDimensions();
glm::vec3 halfMirrorPropertiesDimensions = 0.5f * mirrorPropertiesDimensions;
glm::mat4 worldFromMirrorRotation = glm::mat4_cast(mirrorPropertiesRotation);
glm::mat4 worldFromMirrorTranslation = glm::translate(mirrorPropertiesPosition);
glm::mat4 worldFromMirror = worldFromMirrorTranslation * worldFromMirrorRotation;
glm::mat4 mirrorFromWorld = glm::inverse(worldFromMirror);
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));
// 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);
// 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;
glm::mat4 frustum = glm::frustum(bottomLeft.x, upperRight.x, bottomLeft.y, upperRight.y, nearClip, _farClipPlaneDistance);
srcViewFrustum.setProjection(frustum);
}
void setMirrorProjection(ViewFrustum& srcViewFrustum) {
@ -109,7 +152,17 @@ public:
auto srcViewFrustum = args->getViewFrustum();
if (_mirrorProjection) {
setMirrorProjection(srcViewFrustum);
if (_portalProjection) {
qWarning() << "ERROR: You can't set both _portalProjection and _mirrorProjection";
} else {
setMirrorProjection(srcViewFrustum);
}
} else if (_portalProjection) {
if (_mirrorProjection) {
qWarning() << "ERROR: You can't set both _portalProjection and _mirrorProjection";
} else {
setPortalProjection(srcViewFrustum);
}
} else {
if (!_attachedEntityId.isNull()) {
EntityItemPointer attachedEntity = qApp->getEntities()->getTree()->findEntityByID(_attachedEntityId);
@ -149,6 +202,7 @@ private:
int _textureWidth;
int _textureHeight;
bool _mirrorProjection;
bool _portalProjection;
EntityPropertyFlags _attachedEntityPropertyFlags;
};

2
interface/src/SecondaryCamera.h
View file

@ -26,6 +26,7 @@ class SecondaryCameraJobConfig : public render::Task::Config { // Exposes second
Q_PROPERTY(float nearClipPlaneDistance MEMBER nearClipPlaneDistance NOTIFY dirty) // Secondary camera's near clip plane distance. In meters.
Q_PROPERTY(float farClipPlaneDistance MEMBER farClipPlaneDistance NOTIFY dirty) // Secondary camera's far clip plane distance. In meters.
Q_PROPERTY(bool mirrorProjection MEMBER mirrorProjection NOTIFY dirty) // Flag to use attached mirror entity to build frustum for the mirror and set mirrored camera position/orientation.
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;
glm::vec3 position;
@ -36,6 +37,7 @@ public:
int textureWidth { TextureCache::DEFAULT_SPECTATOR_CAM_WIDTH };
int textureHeight { TextureCache::DEFAULT_SPECTATOR_CAM_HEIGHT };
bool mirrorProjection { false };
bool portalProjection { false };
SecondaryCameraJobConfig() : render::Task::Config(false) {}
signals: