Open MatteoMarengo opened 3 months ago
Hello,
I would need help on a specific task.
I am working on the nuScenes dataset and I want to render a mesh with the right camera viewpoint.
I have a texture map (a .png file) and I define my 2D mesh as a rectangle consisting of two triangles.
Here is my .obj file :
mtllib simple_mesh.mtl
v 33.11250686645508 -50.19285202026367 0.0 v 133.11233520507812 -50.19285202026367 0.0 v 133.11233520507812 49.67078399658203 0.0 v 33.11250686645508 49.67078399658203 0.0 vt 0.0 0.0 vt 1.0 0.0 vt 1.0 1.0 vt 0.0 1.0 f 1/1 2/2 3/3 f 1/1 3/3 4/4
I also have the camera parameters:
camera_params = { "frames": [ { "file_path": "samples/CAM_FRONT/n008-2018-08-27-11-48-51-0400__CAM_FRONT__1535385092112404.jpg", "time": 1535385092112404, "transform_matrix": [ [0.009996810324503643, -0.9998783580101878, -0.01197217466409921, 0.00912502329035999], [0.008842632746802154, 0.012060700994871545, -0.9998881674155458, 1.4819740829478583], [0.9999109318481532, 0.00988982681163363, 0.008962125651585906, -1.4544289915843547], [0.0, 0.0, 0.0, 1.0] ], "intrinsics": [ [1252.8131021185304, 0.0, 826.588114781398], [0.0, 1252.8131021185304, 469.9846626224581], [0.0, 0.0, 1.0] ], "is_key_frame": True } ] }
Therefore I can have my R and my T, but when I am doing the rendering using the MeshRenderer (I have defined cameras with the correct R and T), I only observe a white background.
Thank you so much !
Hello,
I would need help on a specific task.
I am working on the nuScenes dataset and I want to render a mesh with the right camera viewpoint.
I have a texture map (a .png file) and I define my 2D mesh as a rectangle consisting of two triangles.
Here is my .obj file :
mtllib simple_mesh.mtl
v 33.11250686645508 -50.19285202026367 0.0 v 133.11233520507812 -50.19285202026367 0.0 v 133.11233520507812 49.67078399658203 0.0 v 33.11250686645508 49.67078399658203 0.0 vt 0.0 0.0 vt 1.0 0.0 vt 1.0 1.0 vt 0.0 1.0 f 1/1 2/2 3/3 f 1/1 3/3 4/4
I also have the camera parameters:
camera_params = { "frames": [ { "file_path": "samples/CAM_FRONT/n008-2018-08-27-11-48-51-0400__CAM_FRONT__1535385092112404.jpg", "time": 1535385092112404, "transform_matrix": [ [0.009996810324503643, -0.9998783580101878, -0.01197217466409921, 0.00912502329035999], [0.008842632746802154, 0.012060700994871545, -0.9998881674155458, 1.4819740829478583], [0.9999109318481532, 0.00988982681163363, 0.008962125651585906, -1.4544289915843547], [0.0, 0.0, 0.0, 1.0] ], "intrinsics": [ [1252.8131021185304, 0.0, 826.588114781398], [0.0, 1252.8131021185304, 469.9846626224581], [0.0, 0.0, 1.0] ], "is_key_frame": True } ] }
Therefore I can have my R and my T, but when I am doing the rendering using the MeshRenderer (I have defined cameras with the correct R and T), I only observe a white background.
Thank you so much !