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Add support for orthographic camera information and use in glTF2 importer. Fixes #3030.

pull/3029/head
Paul Arden 2020-02-25 14:45:00 +11:00
parent fb5b01958a
commit ae50c4ebdf
2 changed files with 18 additions and 6 deletions
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1
code/glTF2/glTF2Importer.cpp
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@ -715,6 +715,7 @@ void glTF2Importer::ImportCameras(glTF2::Asset &r) {
aicam->mClipPlaneFar = cam.cameraProperties.ortographic.zfar;
aicam->mClipPlaneNear = cam.cameraProperties.ortographic.znear;
aicam->mHorizontalFOV = 0.0;
aicam->mOrthographicWidth = cam.cameraProperties.ortographic.xmag;
aicam->mAspect = 1.0f;
if (0.f != cam.cameraProperties.ortographic.ymag) {
aicam->mAspect = cam.cameraProperties.ortographic.xmag / cam.cameraProperties.ortographic.ymag;

23
include/assimp/camera.h
View File

@ -171,15 +171,26 @@ struct aiCamera
*/
float mAspect;
/** Half horizontal orthographic width, in scene units.
*
* The orthographic width specifies the half width of the
* orthographic view box. If non-zero the camera is
* orthographic and the mAspect should define to the
* ratio between the orthographic width and height
* and mHorizontalFOV should be set to 0.
* The default value is 0 (not orthographic).
*/
float mOrthographicWidth;
#ifdef __cplusplus
aiCamera() AI_NO_EXCEPT
: mUp (0.f,1.f,0.f)
, mLookAt (0.f,0.f,1.f)
, mHorizontalFOV (0.25f * (float)AI_MATH_PI)
, mClipPlaneNear (0.1f)
, mClipPlaneFar (1000.f)
, mAspect (0.f)
: mUp (0.f,1.f,0.f)
, mLookAt (0.f,0.f,1.f)
, mHorizontalFOV (0.25f * (float)AI_MATH_PI)
, mClipPlaneNear (0.1f)
, mClipPlaneFar (1000.f)
, mAspect (0.f)
, mOrthographicWidth (0.f)
{}
/** @brief Get a *right-handed* camera matrix from me