RenderRenderer::get_material_size(): can't get screen

[naumova.natalya]

Hello!

I try to create a class which contains camera, viewport and sprite. The idea is to create multiple instances and some of them will be rendered with different post materials. I managed to do so but my program wouldn't work with some of default materials. After some debugging I realized that the following exception was caused by tag <texture /> with "materials" parameter in it.

I tried to insert this material ("post_sensor_heat") to TextureRender sample instead of "render_copy_2d" and it also throws this exception.

Screenshot sample doesn't suit me because I have multiple viewports and callbacks work only with the last set viewport (Unigine::Render::get()->setViewport()).

May be there is another way to render multiple sprites from their cameras using post materials? Thank you in advance!

Edited February 8, 2019 by naumova.natalya

[silent]

Hi Natalya,

Could you please give us more details about this use-case? What is the input and how the final output should look like? A simple test scene where you get crashes would be also very helpful in debugging.

Thanks!

[naumova.natalya]

Hi, silent!

You could use TextureRender sample but instead of "render_copy_2d" in "copy_texture()" write "post_sensor_heat". I'll create test project and send it next.

[naumova.natalya]

Here is the test project with comments where it crashes.

TestPostMaterials.7z

[silent]

post_sensor* material is pretty complex and requires multiple additional textures that available only if you have viewport - that's why it as materials section defined in XML. As far as I know TextureRender is not using any Viewports, that's why you get this assert in debug.

To fix this you need manually set post material via Render::setPostMaterial()  before the viewport->renderTexture2D(camera, texture) (see previous sample TestCopy2D with viewports usage).

Thanks!

[silent]

Please, check the attached sources - source.7z. Is that what you want to achieve in general?

[naumova.natalya]

Yes!! Thank you a lot!!