tabrizghazi
12-22-2009, 04:40 AM
Hi all,
Recently i’ve been busy with developing various shots of terrains for a short film sequence. I’ve been using many techniques, like camera mapping, to achieve the desired results depending on the movement of the camera. The scene is your regular aircraft flying over the terrain. Im trying to create a 360 degree flyby shot of the environment but am having some issues.
I modeled a terrain in Zbrush, brought it into max and then setup a camera at world zero which is going to be my nodal camera. I applied a basic tiled texture to the terrain and rendered out a spherical panoramic image using the nodal camera. Taking the image into photoshop and paint the environment and bring it back. Then I create a sphere around the terrain that the panorama is projected on. Lastly I line up the terrain with the panorama through the nodal camera view.
This is known as image based 3d terrains and explored in great detail in one of Gnomons dvds. The final step is to project the pano image using the sphere onto the terrain geometry. Ive been doing tests but have not been able to achieve this. The instructor uses the camera image plane and the ‘use background shader’ to project it in Maya. But Im having trouble obtaining the result in 3ds max. When I map the image using camera mapping I get offset results. Theres a paper online that looks into this rarely documented technique at
http://www.isprs.org/commission5/3darch09/pdf/dannibale_fangi.pdf (http://www.isprs.org/commission5/3darch09/pdf/dannibale_fangi.pdf)
Anyone have any thoughts on the matter would be greatly appreciated.
Recently i’ve been busy with developing various shots of terrains for a short film sequence. I’ve been using many techniques, like camera mapping, to achieve the desired results depending on the movement of the camera. The scene is your regular aircraft flying over the terrain. Im trying to create a 360 degree flyby shot of the environment but am having some issues.
I modeled a terrain in Zbrush, brought it into max and then setup a camera at world zero which is going to be my nodal camera. I applied a basic tiled texture to the terrain and rendered out a spherical panoramic image using the nodal camera. Taking the image into photoshop and paint the environment and bring it back. Then I create a sphere around the terrain that the panorama is projected on. Lastly I line up the terrain with the panorama through the nodal camera view.
This is known as image based 3d terrains and explored in great detail in one of Gnomons dvds. The final step is to project the pano image using the sphere onto the terrain geometry. Ive been doing tests but have not been able to achieve this. The instructor uses the camera image plane and the ‘use background shader’ to project it in Maya. But Im having trouble obtaining the result in 3ds max. When I map the image using camera mapping I get offset results. Theres a paper online that looks into this rarely documented technique at
http://www.isprs.org/commission5/3darch09/pdf/dannibale_fangi.pdf (http://www.isprs.org/commission5/3darch09/pdf/dannibale_fangi.pdf)
Anyone have any thoughts on the matter would be greatly appreciated.