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HifiExperiments 2023-12-13 21:58:48 -08:00
parent 4e5ded0ba9
commit e0f3657032
3 changed files with 23 additions and 5 deletions
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23
libraries/gpu-gl-common/src/gpu/gl/GLBackend.cpp
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@ -349,6 +349,7 @@ void GLBackend::renderPassTransfer(const Batch& batch) {
case Batch::COMMAND_setViewTransform:
case Batch::COMMAND_setProjectionTransform:
case Batch::COMMAND_setProjectionJitter:
case Batch::COMMAND_setContextMirrorViewCorrection:
{
CommandCall call = _commandCalls[(*command)];
(this->*(call))(batch, *offset);
@ -386,6 +387,7 @@ void GLBackend::renderPassDraw(const Batch& batch) {
case Batch::COMMAND_setModelTransform:
case Batch::COMMAND_setViewTransform:
case Batch::COMMAND_setProjectionTransform:
case Batch::COMMAND_setContextMirrorViewCorrection:
break;
case Batch::COMMAND_draw:
@ -411,6 +413,7 @@ void GLBackend::renderPassDraw(const Batch& batch) {
//case Batch::COMMAND_setModelTransform:
//case Batch::COMMAND_setViewTransform:
//case Batch::COMMAND_setProjectionTransform:
//case Batch::COMMAND_setContextMirrorViewCorrection:
case Batch::COMMAND_setProjectionJitter:
case Batch::COMMAND_setViewportTransform:
case Batch::COMMAND_setDepthRangeTransform:
@ -623,9 +626,23 @@ void GLBackend::do_restoreContextViewCorrection(const Batch& batch, size_t param
void GLBackend::do_setContextMirrorViewCorrection(const Batch& batch, size_t paramOffset) {
bool prevMirrorViewCorrection = _transform._mirrorViewCorrection;
_transform._mirrorViewCorrection = batch._params[paramOffset + 1]._uint != 0;
if (prevMirrorViewCorrection != _transform._mirrorViewCorrection) {
static const mat4 flipXScale = glm::scale(glm::mat4(), glm::vec3(-1.0f, 1.0f, 1.0f));
setCameraCorrection(_transform._correction.correction * flipXScale, _transform._correction.prevView);
if (_transform._correction.correction != glm::mat4()) {
// If we were previously not flipped, take this opportunity to save our flipped and unflipped matrices.
if (!prevMirrorViewCorrection) {
_transform._unflippedCorrection = _transform._correction.correction;
quat flippedRotation = glm::quat_cast(_transform._unflippedCorrection);
flippedRotation.y *= -1.0f;
flippedRotation.z *= -1.0f;
vec3 flippedTranslation = _transform._unflippedCorrection[3];
flippedTranslation.x *= -1.0f;
_transform._flippedCorrection = glm::translate(glm::mat4_cast(flippedRotation), flippedTranslation);
}
if (prevMirrorViewCorrection != _transform._mirrorViewCorrection) {
setCameraCorrection(_transform._mirrorViewCorrection ? _transform._flippedCorrection : _transform._unflippedCorrection, _transform._correction.prevView);
_transform._invalidView = true;
}
}
}

2
libraries/gpu-gl-common/src/gpu/gl/GLBackend.h
View file

@ -434,6 +434,8 @@ protected:
Transform _view;
CameraCorrection _correction;
bool _viewCorrectionEnabled{ true };
mat4 _unflippedCorrection;
mat4 _flippedCorrection;
bool _mirrorViewCorrection{ false };
Mat4 _projection;

3
libraries/gpu-gl-common/src/gpu/gl/GLBackendTransform.cpp
View file

@ -108,8 +108,7 @@ void GLBackend::TransformStageState::preUpdate(size_t commandIndex, const Stereo
if (_invalidView) {
// Apply the correction
static const mat4 flipXScale = glm::scale(glm::mat4(), glm::vec3(-1.0f, 1.0f, 1.0f));
if (_viewIsCamera && (_viewCorrectionEnabled && _correction.correction != (_mirrorViewCorrection ? flipXScale : glm::mat4()))) {
if (_viewIsCamera && (_viewCorrectionEnabled && _correction.correction != glm::mat4())) {
// FIXME should I switch to using the camera correction buffer in Transform.slf and leave this out?
Transform result;
_view.mult(result, _view, _correction.correctionInverse);