[1.16.5] screen not rendering texture

Hello everyone,

I try to use Tesselator class to render some icons on a screen. But it doesn't work and I don't see why because I am just using the same code as AbstractGui#innerBlit with float parameters.

I linked here the texture of the icons to display and the texture of the gui container. here is the code of the class where the rendering is done :

private void renderQuad(MatrixStack stack, Vector2f origin, Vector2f end, Vector2f uvOrigin, Vector2f uvEnd){
        Tessellator tessellator = Tessellator.getInstance();
        BufferBuilder bufferbuilder = tessellator.getBuilder();
        RenderSystem.enableBlend();
        bufferbuilder.begin(7, DefaultVertexFormats.POSITION_TEX);
        Matrix4f matrix4f = stack.last().pose();
        bufferbuilder.vertex(matrix4f, origin.x, origin.y, (float)0).uv(uvOrigin.x, uvOrigin.y).endVertex();
        bufferbuilder.vertex(matrix4f, origin.x, end.y, (float)0).uv(uvOrigin.x, uvEnd.y).endVertex();
        bufferbuilder.vertex(matrix4f, end.x, end.y, (float)0).uv(uvEnd.x, uvEnd.y).endVertex();
        bufferbuilder.vertex(matrix4f, end.x, origin.y, (float)0).uv(uvEnd.x, uvOrigin.y).endVertex();
        tessellator.end();
}

I have already tried to reverse the position of the vertex.

GUI of the block / icons to display :