Drawing sf::RectangleShape with texture into sf::RenderTexture

[Daedheldir]

Hi everyone!

I have a question about sf::RenderTexture. I'm trying to create perlin noise tile map, but I want each tile to have a noise texture. It works when I draw all the tiles through render window, but having 1024^2 iterations in each drawing cycle isn't desireable... So I decided to draw them into sf::RenderTexture first, and then use that texture to draw only once, but when I tried that, the noise texture on the tiles is gone. Here is my code:

Code:

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void generateMap{
    //this is the sf::RenderTexture
    m_worldRenderTexture.create(static_cast<unsigned int>(constant::world::WORLD_SIZE.x),
                                                static_cast<unsigned int>(constant::world::WORLD_SIZE.y));

    //m_worldTileMap is an std::deque
    for (auto &iter : m_worldTileMap) {
        //Texture::grass is the noise texture I've mentioned
        iter.setTexture(&this->gameData->textureContainer.Get(Texture::grass));

        m_worldRenderTexture.draw(iter);
    }

    m_worldRenderTexture.display();

    //m_world is an sf::RectangleShape that I then draw into the window
    m_world.setSize(constant::world::WORLD_SIZE);
    m_world.setTexture(&m_worldRenderTexture.getTexture());
}
 

Images:

Current effect when drawing the render texture
https://imgur.com/gO4Yy84

Desired effect
https://imgur.com/3pTNzn9

Am I missing something obvious?

[eXpl0it3r]

I'm not certain, but you may need to adjust the texture rect of the shape. You can also achive this by add true as 2nd parameter when setting the texture.

[Daedheldir]

Still doesn't work In the meantime I swapped the rectangle shape for vertices because memory allocation started to become problematic, but even with vertices I can't draw them into render texture, while still using the  noise texture

EDIT:
I've just wrote a simple program that sets texture to a rectangle and then draws it into render texture, the render texture is then set to another rectangle, which is then drawn into the render window, and the result is a white rectangle, so I assume that the render texture only saves the shape and its color, not its texture :/ Is it intended ?

[Daedheldir]

I have found out that because my tile is 1 pixel wide it only draws one pixel from the texture regardless of the texture rect, not sure how to change that...

[eXpl0it3r]

Well if your shape is only one pixel wide, how should it draw more? If you want to display more, make the shape larger.

[Daedheldir]

The size of the shape wasn't actually the problem, the size of the render texture was, it was unable to contain all the detail I wanted it to. Thank you very much eXpl0it3r for your help!