Greets, I'm having problems figuring out how to create an end product large enough to fit onto a 30cmx40cmx canvas & also poster size art work. I apologize if this has been covered somewhere else, but I'm flustered and new to this and really need help! Can someone pretty please walk me through their process for creating this type of end product? P.S. Do you do render the image to that size in Daz first, or make a smaller render (whats the best format?) and resize it?

Render to your target size. Otherwise you will only get bigger pixels.

You may need to render even larger if you want a greater DPI

30 cm is about 12 inches, and 40 cm is about 16 inches, so to produce a 300 PPI image of that size you'd want to render at 3,600 by 4,800 pixels. You'd work out the size of your poster the same way (though for something that is going to be viewed on the wall you may well not need 300PPI, which would reduce the image size). However, you should bear in mind the limits of your raw materials - there's not much point in producing a high-reoslution image if some elements of your scene have only a 500 pixel square section of texture stretched across the whole image area, since that will be grossly pixelated anyway.

Here's the deal --- renders in D|S are at 72 dpi, whether you render to TIFF, Jpeg or what not. So. You need to make certain your final 30x40cm canvas size is translatable to a 300 dpi image from 72. In the final, your pixel sizing on the render should be 3543px x 4724px. At 72dpi, this would be an image that is 125cm x 166cm. But when you translate it to print a resolution of 300dpi, it comes into line with your 30x40 output. I look at it this way. I think of how big I want it in the final, (just did one that was 24" x 36") and figure how many pixels that is at print (7200px x 10800px) and render to that pixel setting. It comes out at 72 dpi, but when I am doing my post in photoshop, the first thing I do is translate it to a 300dpi image, and the 24"x36" size. It's the same amount of pixels, but a different resolution, effectively resulting in the same size, but in a printable format. Confusing? Yes. But I've been doing this since 1988, so it's sort of second-hat to me. And once you've done it, you'll more than likely go, "OH! I get it! That was easy!" Good luck, and I hope this helped.

Thanks so much for your replies, they are very helpful to me! I truly appreciate that you guys took some time to share your knowledge with me :D hugs all & Happy Valentines Day!