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# Rend
Send data to the GPU in a stable cross-platform and cross-graphics-API way.
Here's an example render loop used in my game!
```c
if (rend_renderer_frame_begin(renderer)) {
// First pass: draw to a texture representing the in-game pixel art dimentions.
rend_cmd_render_begin_texture(renderer, &canvas); { // brackets for style
rend_cmd_bind_pipeline(ui_pipeline);
rend_cmd_push_constants(ui_pipeline, &push_constants, sizeof(push_constants));
rend_cmd_draw(ui_pipeline, vert_count, 1); // a vertex buffer is not bound because it's passed via push constants
} rend_cmd_render_end_texture(renderer, &canvas);
// Second pass: apply post processing using the native swapchain
rend_cmd_render_begin(renderer, 1.0, 0.5, 0.0, 1.0); { // RGBA clear colors
rend_cmd_bind_pipeline(present_pipeline);
rend_cmd_push_constants(present_pipeline, &present_pc, sizeof(present_pc));
rend_cmd_draw(present_pipeline, 4, 1); // 4 vertices and one instance
} rend_cmd_render_end(renderer);
rend_renderer_frame_end(renderer, &delta);
}
}
```
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