sf::Shape Texture Coordinates

[foobarbaz]

Hi, I'm writing a game that procedurally generates 2D planets. Right now, the entire planet is rendered onto a massive texture, which is fine when there is only one planet. I know, though, that I will be having problems when I have 100 planets. To get around this, instead of generating the planet's texture, I want to store polygons to render in OpenGL, but to do this, I need to be able to set texture coordinates from a source texture. I saw that texturing an sf::Shape is possible in the documentation, but couldn't find a way to set texture coordinates. Is there a way? Or am I going to have to dive into the OpenGL documentation and render my planets without SFML's help?

Thanks for your time!

[eXpl0it3r]

The easier way than going via sf::Shape is probably to use sf::VertexArray or std::vector<sf::Vertex> directly. You can set either a color or set the texture coordinates (or both).

[foobarbaz]

Wow, that looks like a great solution, thanks! And thanks for the fast reply

[foobarbaz]

Hey, I finally got around to implementing rendering using a VertexArray, but I'm having trouble visualizing how to calculate texture coordinates based off of the vertex pixel coordinates. The planet is composed of a couple hundred vertices and I would like to have it textured as if I had a tiled texture that the vertices "cut" from like a cookie cutter. I don't know if that makes sense?

The vertex array is rendered as a triangle fan.

EDIT:

For anyone who cares, the texture coordinates are actually going to be exactly the same as the pixel coordinates, no computation required!