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Cancel display names roll

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This is annoying in HMD
This commit is contained in:
Atlante45 2015-06-17 16:31:38 +02:00
parent e1b5a3c204
commit 3b41a8f209
1 changed files with 9 additions and 5 deletions
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14
interface/src/avatar/Avatar.cpp
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@ -699,17 +699,21 @@ Transform Avatar::calculateDisplayNameTransform(const ViewFrustum& frustum, floa
// Compute correct scale to apply
float scale = DESIRED_HIGHT_ON_SCREEN / (fontSize * pixelHeight) * devicePixelRatio;
// 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;
// Compute orientation
glm::vec3 eulerAngles = ::safeEulerAngles(frustum.getOrientation());
eulerAngles.z = 0.0f; // Cancel roll
glm::quat orientation(eulerAngles); // back to quaternions
// Set transform (The order IS important)
result.setTranslation(textPosition);
result.setRotation(frustum.getOrientation()); // Always face the screen
// Pixel alignment
result.postTranslate(worldOffset);
result.setRotation(orientation); // Always face the screen
result.postTranslate(worldOffset); // Pixel alignment
result.setScale(scale);
return result;
}