stig-atle/io_scene_mitsuba2

Mitsuba2 exporter for blender

io_scene_mitsuba2's Issues

Export perspective \ camera view

Right now the exporter export one of the cameras in the scene.
Fix so that you also can export 'perspective' view.
If you are not viewing through a camera - export the current perspective view.
If you have a DOF target selected - then also use that even if in perspective mode.

Convert the text output by using proper xml

Right now the scene is written as pure text.
Convert it all to use proper xml library instead.

Fix the material node traversal

The way we currently traverse the materials is not good.
It sometimes fails to find the correct nodes, so sometimes when this happens you
have to clear the material and create a new one.
Solve this by getting the 'surface' then get the node connected to that input, instead
of finding the material node 'directly' like now.

Fix batch export

Fix batch export so that animations can be rendered.
Possible solution:
Name the xml file by frame name, then put geometry in corresponding folder based on frame number.

Fix so that you can export any 'scene' in blender file.

Currently it exports only the first scene defined in the blender file.
Fix so that it will export 'current' selected scene, and optionally all scenes in the file into their own subfolder.
That makes it much more flexible.

Duplicate materials causes mitsuba to not render.

Mitsuba does not like duplicate material names. So currently if you have 1 material on 2 objects (same material) then it throws a error.
Fix this by defining all materials first, then reference them by name when the objects are defined.

Fix texture copying if file is the same as what it tries to copy over.

If you define a texture that's already in the 'textures' subdirectory in a shader the copy routine fails.
This is because it's trying to overwrite itself while copying.

Export meshes as 'native' format.

Currently the meshes are exported to external files as .obj.
Fix it so that it exports to 'native' format inside the xml file instead.

Import a mitsuba scene

IO in the addon name stands for input/output, which is currently misleading.
The only thing the addon does is output a mitsuba scene.

Stop export if no light source is defined.

Stop the export, and warn user if no light source is defined in the scene.

Fix output path when relative path is selected.

When you set the output path it some times fails if you have relative path.
Fix so that it uses what ever path is selcted - but then resolve the 'true' path - and export that.
Look at the texture export code, there is a function there that shows how to resolve this.