D3d draw block

Example
Suppose the following code is executed: d3d_draw_block(0,16,16,16,16,0,spr_texture,5,5) The coordinate values for this block would be (0,16,16,16, 0, 0). The values you define will end up being 2 opposite corners of the block. That same block could have been drawn using the values (0, 0, 0, 16, 16, 16). It would just have defined 2 different opposite corners.

To not use a texture for this primitive, put -1 in place of texid, else provide the id of a texture. Even if you don't use a texture, you must fill in the hrepeat and vrepeat parameters. If you are not using a texture, it does not matter what value you enter, I usually put a 0. If however you are using a texture, set hrepeat to how many times the texture should be repeated along the horizontal edges of faces, and vrepeat to how many times the texture should be repeated along the vertical edges of faces. Repeating a texture that tiles well can be used to cover large areas without losing definition.