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fix for mirror rendering on windows

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* added preScale to Transform class.
* preScale by -1 about the xAxis instead of post scale.
  I think this was working on Mac due to the different code paths in
  GLBackendTransform::updateTransform for core vs legacy gl profile.
This commit is contained in:
Anthony J. Thibault 2015-07-08 19:25:16 -07:00
parent 82cad5dab3
commit 1be0e7ebc3
3 changed files with 11 additions and 12 deletions
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11
interface/src/Application.cpp
View file

@ -3386,14 +3386,6 @@ void Application::displaySide(RenderArgs* renderArgs, Camera& theCamera, bool se
// load the view frustum
loadViewFrustum(theCamera, _displayViewFrustum);
// flip x if in mirror mode (also requires reversing winding order for backface culling)
if (theCamera.getMode() == CAMERA_MODE_MIRROR) {
//glScalef(-1.0f, 1.0f, 1.0f);
//glFrontFace(GL_CW);
} else {
glFrontFace(GL_CCW);
}
// transform view according to theCamera
// could be myCamera (if in normal mode)
// or could be viewFrustumOffsetCamera if in offset mode
@ -3411,9 +3403,6 @@ void Application::displaySide(RenderArgs* renderArgs, Camera& theCamera, bool se
Transform viewTransform;
viewTransform.setTranslation(theCamera.getPosition());
viewTransform.setRotation(rotation);
if (theCamera.getMode() == CAMERA_MODE_MIRROR) {
// viewTransform.setScale(Transform::Vec3(-1.0f, 1.0f, 1.0f));
}
if (renderArgs->_renderSide != RenderArgs::MONO) {
glm::mat4 invView = glm::inverse(_untranslatedViewMatrix);

2
libraries/render-utils/src/RenderDeferredTask.cpp
View file

@ -118,7 +118,7 @@ void DrawOpaqueDeferred::run(const SceneContextPointer& sceneContext, const Rend
args->_viewFrustum->evalProjectionMatrix(projMat);
args->_viewFrustum->evalViewTransform(viewMat);
if (args->_renderMode == RenderArgs::MIRROR_RENDER_MODE) {
viewMat.postScale(glm::vec3(-1.0f, 1.0f, 1.0f));
viewMat.preScale(glm::vec3(-1.0f, 1.0f, 1.0f));
}
batch.setProjectionTransform(projMat);
batch.setViewTransform(viewMat);

10
libraries/shared/src/Transform.h
View file

@ -97,6 +97,8 @@ public:
const Vec3& getScale() const;
void setScale(float scale);
void setScale(const Vec3& scale); // [new this] = [this.translation] * [this.rotation] * [scale]
void preScale(float scale);
void preScale(const Vec3& scale);
void postScale(float scale); // [new this] = [this] * [scale] equivalent to glScale
void postScale(const Vec3& scale); // [new this] = [this] * [scale] equivalent to glScale
@ -322,6 +324,14 @@ inline void Transform::setScale(const Vec3& scale) {
}
}
inline void Transform::preScale(float scale) {
setScale(getScale() * scale);
}
inline void Transform::preScale(const Vec3& scale) {
setScale(getScale() * scale);
}
inline void Transform::postScale(float scale) {
if (!isValidScale(scale) || scale == 1.0f) {
return;