diff options
Diffstat (limited to 'src/plugins/renderers/opengl/renderer/renderview.cpp')
| -rw-r--r-- | src/plugins/renderers/opengl/renderer/renderview.cpp | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/src/plugins/renderers/opengl/renderer/renderview.cpp b/src/plugins/renderers/opengl/renderer/renderview.cpp index 324e63af9..8cd22eaa2 100644 --- a/src/plugins/renderers/opengl/renderer/renderview.cpp +++ b/src/plugins/renderers/opengl/renderer/renderview.cpp @@ -1077,8 +1077,16 @@ void RenderView::updateRenderCommand(const EntityRenderCommandDataSubView &subVi void RenderView::updateMatrices() { if (m_renderCameraNode && m_renderCameraLens && m_renderCameraLens->isEnabled()) { - const Matrix4x4 cameraWorld = *(m_renderCameraNode->worldTransform()); - setViewMatrix(m_renderCameraLens->viewMatrix(cameraWorld)); + auto transform = m_renderCameraNode->renderComponent<Transform>(); + if (m_renderCameraNode->isParentLessTransform() && transform && transform->hasViewMatrix()) { + // optimization: if the entity is a QCamera and it doesn't have a parent with a transform component, + // then we use the frontend version of the viewMatrix to avoid extra calculations that may introduce + // rounding errors + setViewMatrix(transform->viewMatrix()); + } else { + const Matrix4x4 cameraWorld = *(m_renderCameraNode->worldTransform()); + setViewMatrix(m_renderCameraLens->viewMatrix(cameraWorld)); + } setViewProjectionMatrix(m_renderCameraLens->projection() * viewMatrix()); //To get the eyePosition of the camera, we need to use the inverse of the |