Messages

616

[Max] I need help! / Re: Corona 5 - 2.5D Displacement on Curves

« on: 2019-11-08, 00:27:31 »

Ok so displacement issues now solved.  Simplified the curves as suggested by removing every other edge (twice), then added horizontal connects.  Artifacts are gone.  So just the texture quality question remaining.  I've switched back to bilinear rather than bicubic as the texture is high res and it's slightly better, but always still feels blurred.  Have also tried disabling filtering for all textures and didn't make much difference

617

[Max] I need help! / Re: Corona 5 - 2.5D Displacement on Curves

« on: 2019-11-07, 21:11:15 »

I think the answer is more geometry as suggested.  Here I've added 25 horizontal connects to a section, the bit at the top before it meets the white brick and the artifcats are significantly reduced, compared to the section below and white brick above.  For some reason though I was under the impression Corona's displacement didn't really on geometry subdivision.  For what it's worth, I'm not using autobump either - should I be?

Just to add to this, does anyone know why textures lack detail in Corona - i find this a lot.  The brick for example, the crops I'm sending are from a 6k render.  The texture I'm using is 8k.

Attached a 1:1 crop of the texture, but I can never seem to get that detail through in Corona.  In this instance the texture is applied via a Corona Bitmap node with filtering set to 0.01 and bicubic smoother

618

[Max] I need help! / Re: Corona 5 - 2.5D Displacement on Curves

« on: 2019-11-07, 20:37:47 »

I'm not sure it's darker, but the displacement is definitely more pronounced, possibly due to the curve itself and the angle of the light hitting it.  I also don't have the best graphics card in this machine it's an old school K620.  However it looks smooth in viewport (i'd like to think I'd recognise a smoothing issue if I saw one.  There's also a map set to screen in a composite node to make lighter patches across the facade and it could just be unfortunate placement of that map too.  But for the curious I've attached without visible edges

See the other attachment too - doesn't seem to happen in areas of shadow just when hit by direct light?

619

[Max] I need help! / Re: Corona 5 - 2.5D Displacement on Curves

« on: 2019-11-07, 18:10:12 »

Btw: I cannot see any shading in the wood of edges 8]


Good Luck

Haha gotta get those curves smooth

620

[Max] I need help! / Re: Corona 5 - 2.5D Displacement on Curves

« on: 2019-11-07, 18:04:18 »

in what way do the shading normals look off

621

[Max] I need help! / Re: Corona 5 - 2.5D Displacement on Curves

« on: 2019-11-07, 17:47:53 »

Could it be that they are only visible from specific camera angle? If you'd try to rotate the camera, would those artifacts shift to other location or would they remain at the same position?

Again, if I go more flat on, they are still there, but not as obvious

622

[Max] I need help! / Re: Corona 5 - 2.5D Displacement on Curves

« on: 2019-11-07, 17:33:58 »

Nope not railclone.  This is the geometry - simple extruded spline.

623

[Max] I need help! / Re: Corona 5 - 2.5D Displacement on Curves

« on: 2019-11-07, 15:11:27 »

Artifacts remain albeit not as extreme

624

[Max] I need help! / Corona 5 - 2.5D Displacement on Curves

« on: 2019-11-07, 14:48:08 »

Anyone know why my displacement goes funky when it reaches a curve?  The exact same material on both the flat surface and the curve?

625

[Max] I need help! / Re: Anyway to edit default settings for Corona Maps i.e. Corona Bitmap

« on: 2019-09-30, 14:01:38 »

Sometimes the obvious answers are the best.  Slow morning.  Thanks

626

[Max] I need help! / [solved] Anyway to edit default settings for Corona Maps i.e. Corona Bitmap

« on: 2019-09-30, 13:46:09 »

As the title suggests, is there any way to edit any settings files anywhere, to control the default values for Maps.

For example, everytime I load a Corona Bitmap, I change the Interpolation to Bicubic Smoother.  It would be nice if I didn't have to do this every single time.

627

[Max] I need help! / Re: Shadowcatcher Issue

« on: 2019-09-09, 23:31:52 »

The ground - I really just want the cars/shadows.

I hadn't removed the backplate from the shadowcatcher material.  That does the trick.

Thanks

628

[Max] I need help! / Re: Shadowcatcher Issue

« on: 2019-09-09, 22:32:28 »

Ok so splitting the geometry down the shadow line and excluding half from the sun does exactly what I need.

The next issue is why my geometry isn't overridden as black when I choose 'For Compositing'

629

[Max] I need help! / Re: Shadowcatcher Issue

« on: 2019-09-09, 22:16:40 »

Makes sense, I can literally just split the current object down the shadow line and have the two separate objects.

630

[Max] I need help! / Shadowcatcher Issue

« on: 2019-09-09, 20:46:20 »

First problem - when I choose 'For Compositing' as the Alpha Mode - why does my ShadowCatcher object not render black?

Second problem, is there any way to exlude things to avoid doubling up of shadows etc?

I've attached a backplate I need to composite into.  I basically need to place a car in the shaded area of the road, and a car into the sunlit area of the road.

I've modelled the road, and I'm projecting the backplate onto it using the shadowcatcher material (is this correct).

I setup lighting using a simple sun/sky system to emulate the conditions in the backplate.

I've modelled the building that's casting the shadow across the road as I need to get that same shadow on the car and the reflections from it (this is the problem shadow - I don't want this shadow on the shadow catcher, just on the car, because well it's already on the backplate).

Is this possible?  Where am I going wrong?