My system: Sketchup-pro 2021 running under MacOS Monterey on a high performance Apple desktop i9 Intel CPU with 64gigs RAM and an AMD graphics card with 8gigs vRAM. External 4k monitor.
Seeing awful anti-aliasing problems when modeling corrugated metal exterior siding for an affordable housing project. Created a common residential metal siding component: sinusoidal 7/8" tall corrugations 2.67" ctc. Each corrugated metal panel has (14) pairs of parallel convolutions, a peak and a trough, so there are a fair number of hidden geometry lines (12 each) defining each approx 1/2" radius curve on the metal panel.
Problem is the metal siding surface looks fine when viewed closeup (camera less than 20ft from component surface). The further the camera zooms away from the metal siding the worse it looks because the image becomes filled with extra white lines and moire fringe patterns. Moving the camera to a different angle relative to the surface (normal) can improve or degrade the image.
This is very unfortunate, because the house surface is dominated by corrugated metal siding and from a modest distance (70ft) it makes the model almost unrecognizable in a jumbled mess of thousands of extraneous white lines and interference patterns. I would be grateful for any suggestions which might at least improve the rendered image.
What I’ve tried so far: changed the properties of the metal siding (12) hidden geometry lines that define the curved 1/2" radius areas so the “soft” and “smooth” attributes are disabled. Toggle the visibility property so the (12) lines that make up one of the curves are not visible". This makes no improvement in the image, which is still awful.
Sketchup → Preferences → OpenGL : disable “Use Fast Feedback”, set Anti-Aliasing = 8x (highest setting my video card offers). No improvement in the image rendered from greater than approx 20’ft away from corrugated metal surface.
Generated two screenshots which display the anti-aliasing problem from approx 70’ft away from metal siding surface and a much better image from 20’ft away. However, cant’ upload these small JPEGs to the topic. Can not upload a .SKP file of just the corrugated metal siding component either. Get the “Sorry, there was an error uploading that file. Please try again.” Can any admins help me understand how to upload either a small JPEG or a Sketchup model .SKP file to this forum ?
