Fix text entity billboarding

This commit is contained in:
Atlante45 2015-07-02 12:31:18 -07:00
parent c6a613eaa9
commit 0eb89efb34

View file

@ -36,10 +36,6 @@ void RenderableTextEntityItem::render(RenderArgs* args) {
glm::vec4 backgroundColor = glm::vec4(toGlm(getBackgroundColorX()), 1.0f);
glm::vec3 dimensions = getDimensions();
Transform transformToTopLeft = getTransformToCenter();
transformToTopLeft.postTranslate(glm::vec3(-0.5f, 0.5f, 0.0f)); // Go to the top left
transformToTopLeft.setScale(1.0f); // Use a scale of one so that the text is not deformed
// Render background
glm::vec3 minCorner = glm::vec3(0.0f, -dimensions.y, SLIGHTLY_BEHIND);
glm::vec3 maxCorner = glm::vec3(dimensions.x, 0.0f, SLIGHTLY_BEHIND);
@ -48,13 +44,20 @@ void RenderableTextEntityItem::render(RenderArgs* args) {
// Batch render calls
Q_ASSERT(args->_batch);
gpu::Batch& batch = *args->_batch;
batch.setModelTransform(transformToTopLeft);
//rotate about vertical to face the camera
Transform transformToTopLeft = getTransformToCenter();
if (getFaceCamera()) {
transformToTopLeft.postRotate(args->_viewFrustum->getOrientation());
batch.setModelTransform(transformToTopLeft);
//rotate about vertical to face the camera
glm::vec3 dPosition = args->_viewFrustum->getPosition() - getPosition();
// If x and z are 0, atan(x, z) is undefined, so default to 0 degrees
float yawRotation = dPosition.x == 0.0f && dPosition.z == 0.0f ? 0.0f : glm::atan(dPosition.x, dPosition.z);
glm::quat orientation = glm::quat(glm::vec3(0.0f, yawRotation, 0.0f));
transformToTopLeft.setRotation(orientation);
}
transformToTopLeft.postTranslate(glm::vec3(-0.5f, 0.5f, 0.0f)); // Go to the top left
transformToTopLeft.setScale(1.0f); // Use a scale of one so that the text is not deformed
batch.setModelTransform(transformToTopLeft);
DependencyManager::get<DeferredLightingEffect>()->bindSimpleProgram(batch, false, false);
DependencyManager::get<GeometryCache>()->renderQuad(batch, minCorner, maxCorner, backgroundColor);