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Display name have a arc size instead of pixel size

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Atlante45 2015-10-05 13:05:43 -07:00
parent 039d9a6a98
commit 946d289a99
2 changed files with 58 additions and 105 deletions
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159
interface/src/avatar/Avatar.cpp
View file

@ -549,7 +549,12 @@ void Avatar::render(RenderArgs* renderArgs, const glm::vec3& cameraPosition) {
auto cameraMode = qApp->getCamera()->getMode();
if (!isMyAvatar() || cameraMode != CAMERA_MODE_FIRST_PERSON) {
renderDisplayName(batch, *renderArgs->_viewFrustum, renderArgs->_viewport);
auto& frustum = *renderArgs->_viewFrustum;
auto textPosition = getDisplayNamePosition();
if (frustum.pointInFrustum(textPosition)) {
renderDisplayName(batch, frustum, textPosition);
}
}
endRender();
}
@ -716,85 +721,29 @@ glm::vec3 Avatar::getDisplayNamePosition() const {
return namePosition;
}
Transform Avatar::calculateDisplayNameTransform(const ViewFrustum& frustum, float fontSize, const glm::ivec4& viewport) const {
Transform result;
// We assume textPosition is whithin the frustum
glm::vec3 textPosition = getDisplayNamePosition();
// Compute viewProjection matrix
glm::mat4 projMat, viewMat;
Transform view;
frustum.evalProjectionMatrix(projMat);
frustum.evalViewTransform(view);
glm::mat4 viewProj = projMat * view.getInverseMatrix(viewMat);
// Used to determine correct scale
glm::vec3 testPoint0 = textPosition;
glm::vec3 testPoint1 = testPoint0 + glm::normalize(frustum.getUp());
// testPoints projections
glm::vec4 p0 = viewProj * glm::vec4(testPoint0, 1.0);
glm::vec4 p1 = viewProj * glm::vec4(testPoint1, 1.0);
float windowSizeY = viewport.w;
const float DESIRED_HIGHT_ON_SCREEN = 20; // In pixels (this is double on retinas)
// Projected point are between -1.0f and 1.0f, hence 0.5f * windowSizeY
float pixelHeight = 0.5f * windowSizeY * glm::abs((p1.y / p1.w) - (p0.y / p0.w)); //
// Handles pixel density (especially for macs retina displays)
float devicePixelRatio = (float)qApp->getDevicePixelRatio() * qApp->getRenderResolutionScale(); // pixels / unit
// Compute correct scale to apply
float scale = DESIRED_HIGHT_ON_SCREEN / (fontSize * pixelHeight) * devicePixelRatio;
#ifdef DEBUG
// TODO: Temporary logging to track cause of invalid scale value; remove once cause has been fixed.
// Problem is probably due to an invalid getDisplayNamePosition(). See extra logging above.
if (scale == 0.0f || glm::isnan(scale) || glm::isinf(scale)) {
if (scale == 0.0f) {
qDebug() << "ASSERT because scale == 0.0f";
}
if (glm::isnan(scale)) {
qDebug() << "ASSERT because isnan(scale)";
}
if (glm::isinf(scale)) {
qDebug() << "ASSERT because isinf(scale)";
}
qDebug() << "textPosition =" << textPosition;
qDebug() << "projMat =" << projMat;
qDebug() << "viewMat =" << viewMat;
qDebug() << "viewProj =" << viewProj;
qDebug() << "windowSizeY =" << windowSizeY;
qDebug() << "p1 =" << p1;
qDebug() << "p0 =" << p0;
qDebug() << "qApp->getDevicePixelRatio() =" << qApp->getDevicePixelRatio();
qDebug() << "fontSize =" << fontSize;
qDebug() << "pixelHeight =" << pixelHeight;
qDebug() << "devicePixelRatio =" << devicePixelRatio;
}
#endif
// Compute pixel alignment offset
float clipToPix = 0.5f * windowSizeY / p1.w; // Got from clip to pixel coordinates
glm::vec4 screenPos = clipToPix * p1; // in pixels coords
glm::vec4 screenOffset = (glm::round(screenPos) - screenPos) / clipToPix; // in clip coords
glm::vec3 worldOffset = glm::vec3(screenOffset.x, screenOffset.y, 0.0f) / (float)pixelHeight;
Transform Avatar::calculateDisplayNameTransform(const ViewFrustum& frustum, const glm::vec3& textPosition) const {
Q_ASSERT_X(frustum.pointInFrustum(textPosition), "Avatar::calculateDisplayNameTransform",
"Text not in viewfrustum.");
glm::vec3 dPosition = frustum.getPosition() - textPosition;
// Compute orientation
glm::vec3 dPosition = frustum.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);
// If x and z are 0, atan(x, z) adais undefined, so default to 0 degrees
const 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));
// Set transform (The order IS important)
// Compute correct scale to apply
static const float DESIRED_HIGHT_RAD = glm::radians(2.0f);
float scale = glm::length(dPosition) * glm::tan(DESIRED_HIGHT_RAD);
// Set transform
Transform result;
result.setTranslation(textPosition);
result.setRotation(orientation); // Always face the screen
result.postTranslate(worldOffset); // Pixel alignment
result.setScale(scale);
return result;
}
void Avatar::renderDisplayName(gpu::Batch& batch, const ViewFrustum& frustum, const glm::ivec4& viewport) const {
void Avatar::renderDisplayName(gpu::Batch& batch, const ViewFrustum& frustum, const glm::vec3& textPosition) const {
bool shouldShowReceiveStats = DependencyManager::get<AvatarManager>()->shouldShowReceiveStats() && !isMyAvatar();
// If we have nothing to draw, or it's totally transparent, or it's too close or behind the camera, return
@ -818,39 +767,43 @@ void Avatar::renderDisplayName(gpu::Batch& batch, const ViewFrustum& frustum, co
}
// Compute display name extent/position offset
glm::vec2 extent = renderer->computeExtent(renderedDisplayName);
QRect nameDynamicRect = QRect(0, 0, (int)extent.x, (int)extent.y);
const int text_x = -nameDynamicRect.width() / 2;
const int text_y = -nameDynamicRect.height() / 2;
// Compute background position/size
static const float SLIGHTLY_IN_FRONT = 0.1f;
const int border = 0.1f * nameDynamicRect.height();
const int left = text_x - border;
const int bottom = text_y - border;
const int width = nameDynamicRect.width() + 2.0f * border;
const int height = nameDynamicRect.height() + 2.0f * border;
const int bevelDistance = 0.1f * height;
// Display name and background colors
glm::vec4 textColor(0.93f, 0.93f, 0.93f, _displayNameAlpha);
glm::vec4 backgroundColor(0.2f, 0.2f, 0.2f,
(_displayNameAlpha / DISPLAYNAME_ALPHA) * DISPLAYNAME_BACKGROUND_ALPHA);
// Compute display name transform
auto textTransform = calculateDisplayNameTransform(frustum, renderer->getFontSize(), viewport);
batch.setModelTransform(textTransform);
DependencyManager::get<DeferredLightingEffect>()->bindSimpleProgram(batch, false, true, true, true);
DependencyManager::get<GeometryCache>()->renderBevelCornersRect(batch, left, bottom, width, height,
bevelDistance, backgroundColor);
// Render actual name
QByteArray nameUTF8 = renderedDisplayName.toLocal8Bit();
// Render text slightly in front to avoid z-fighting
textTransform.postTranslate(glm::vec3(0.0f, 0.0f, SLIGHTLY_IN_FRONT * renderer->getFontSize()));
batch.setModelTransform(textTransform);
renderer->draw(batch, text_x, -text_y, nameUTF8.data(), textColor);
const glm::vec2 extent = renderer->computeExtent(renderedDisplayName);
if (!glm::any(glm::isCompNull(extent, EPSILON))) {
const QRect nameDynamicRect = QRect(0, 0, (int)extent.x, (int)extent.y);
const int text_x = -nameDynamicRect.width() / 2;
const int text_y = -nameDynamicRect.height() / 2;
// Compute background position/size
static const float SLIGHTLY_IN_FRONT = 0.1f;
const int border = 0.1f * nameDynamicRect.height();
const int left = text_x - border;
const int bottom = text_y - border;
const int width = nameDynamicRect.width() + 2.0f * border;
const int height = nameDynamicRect.height() + 2.0f * border;
const int bevelDistance = 0.1f * height;
// Display name and background colors
glm::vec4 textColor(0.93f, 0.93f, 0.93f, _displayNameAlpha);
glm::vec4 backgroundColor(0.2f, 0.2f, 0.2f,
(_displayNameAlpha / DISPLAYNAME_ALPHA) * DISPLAYNAME_BACKGROUND_ALPHA);
// Compute display name transform
auto textTransform = calculateDisplayNameTransform(frustum, textPosition);
// Test on extent above insures abs(height) > 0.0f
textTransform.postScale(1.0f / height);
batch.setModelTransform(textTransform);
DependencyManager::get<DeferredLightingEffect>()->bindSimpleProgram(batch, false, true, true, true);
DependencyManager::get<GeometryCache>()->renderBevelCornersRect(batch, left, bottom, width, height,
bevelDistance, backgroundColor);
// Render actual name
QByteArray nameUTF8 = renderedDisplayName.toLocal8Bit();
// Render text slightly in front to avoid z-fighting
textTransform.postTranslate(glm::vec3(0.0f, 0.0f, SLIGHTLY_IN_FRONT * renderer->getFontSize()));
batch.setModelTransform(textTransform);
renderer->draw(batch, text_x, -text_y, nameUTF8.data(), textColor);
}
}
void Avatar::setSkeletonOffset(const glm::vec3& offset) {

4
interface/src/avatar/Avatar.h
View file

@ -217,8 +217,8 @@ protected:
float getPelvisFloatingHeight() const;
glm::vec3 getDisplayNamePosition() const;
Transform calculateDisplayNameTransform(const ViewFrustum& frustum, float fontSize, const glm::ivec4& viewport) const;
void renderDisplayName(gpu::Batch& batch, const ViewFrustum& frustum, const glm::ivec4& viewport) const;
Transform calculateDisplayNameTransform(const ViewFrustum& frustum, const glm::vec3& textPosition) const;
void renderDisplayName(gpu::Batch& batch, const ViewFrustum& frustum, const glm::vec3& textPosition) const;
virtual void renderBody(RenderArgs* renderArgs, ViewFrustum* renderFrustum, float glowLevel = 0.0f);
virtual bool shouldRenderHead(const RenderArgs* renderArgs) const;
virtual void fixupModelsInScene();