Render a Panorama view of 3D scene

Create a Panorama view

In this article, we create a Camera and two Light objects to capture the scene, also create a render target, create a viewport and execute the equirectangular projection post-processing with the cube map as input and finally save the Panorama texture. The execute method of Renderer class allows to execute the post processing effect and save the result to render target.

Programming Sample

This code example renders a Panorama view of 3D scene and save into the image format.

Python


from aspose.pydrawing.imaging import ImageFormat
from aspose.pydrawing import Color
import aspose.threed as a3d

#load the scene

scene = Scene.from_file("vc.glb")

#create a camera for capturing the cube map

cam = a3d.entities.Camera(a3d.entities.ProjectionType.PERSPECTIVE)


cam.near_plane = 0.1
cam.far_plane = 200
cam.rotation_mode = a3d.entities.RotationMode.FIXED_DIRECTION


scene.root_node.create_child_node(cam).transform.set_translation(5, 6, 0);



#create two lights to illuminate the scene

scene.root_node.create_child_node(a3d.entities.Light("", a3d.entities.LightType.POINT).transform.set_translation(-10, 7, -10)

light = a3d.entities.Light()
light.color = Color.cadet_blue
scene.root_node.create_child_node(light).transform.set_translation(49, 0, 49)

#create a renderer

with a3d.render.Renderer.create_renderer() as renderer:

    #Create a cube map render target with depth texture, depth is required when rendering a scene.

    rt = renderer.render_factory.create_cube_render_texture(a3d.render.RenderParameters(False), 512, 512)

    #create a 2D texture render target with no depth texture used for image processing

    final = renderer.render_factory.CreateRenderTexture(a3d.render.RenderParameters(False, 32, 0, 0), 1024 * 3 , 1024)



    #a viewport is required on the render target

    rt.create_viewport(cam, a3d.utilities.RelativeRectangle.from_scale(0, 0, 1, 1))

    renderer.render(rt)



    #execute the equirectangular projection post-processing with the previous rendered cube map as input

    equirectangular = renderer.get_post_processing("equirectangular")

    #Specify the cube map rendered from the scene as this post processing's input

    equirectangular.input = rt.targets[0]

    #Execute the post processing effect and save the result to render target final

    renderer.execute(equirectangular, final)

    #save the texture into disk

    final.targets[0].save("panorama.png", ImageFormat.PNG)
Render 3D View in Image format from Camera