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Re: PBR grass vs asphalt albedo/base color value?
I would say just use what works for you. Even with worn asphalt, you'll have a host of options (how old, what kind of gravel/aggregate, what kind of bitumen, what kind of dust, not to mention the kind and state of grass or foliage). I can see the appeal of PBR being the be all and end all of material definition (looking at… -
Re: PBR grass vs asphalt albedo/base color value?
Just googling old road you can see some are darker than the grass and foliage and some are lighter, just depends on the materials and how it aged. Personally I'd start with the brighter concrete curb, put that at about .4 and try .35 for the road and see if that looks right. Charts are a good place to start, but I'll… -
PBR grass vs asphalt albedo/base color value?
Does anyone know why basically any base color/albedo gude says asphalts including old/worn ones base color should be darker than any random grass/ foliage albedo and yet I see it every day that a grass is usually darker through a day until late afternoon at least toward the sun only where we se lots of grass translucency/… -
Re: PBR grass vs asphalt albedo/base color value?
The vast majority of the surface area in a 1m square of grass is near vertical and a pretty significant proportion of that is facing away from the viewer As such... if your light source (the sun) is on the other side of the patch of grass from you, any light going in has a relatively low chance of coming out in the… -
Re: PBR grass vs asphalt albedo/base color value?
Thanks guys for your opinions . I have just found a link on Wiki albedo page saying all the asphalts turns average 0.12 within 5 years of initial pavement , and some reach 0.16 i.e 111 in sRGB . That looks so much closer in our renderer to what I see outside , Still not same bright as in this photo until exposure makes… -
Re: PBR grass vs asphalt albedo/base color value?
Maybe because the reflection "factor" of light on asphalt in in total greater than in some plant "array" because of the darker looking spots inbetween and the bending of every single plant part ?? If the final result does fit the reference then the initial darer color does fit this "experience top" ?? Ohh.. indeed.. just… -
Re: PBR grass vs asphalt albedo/base color value?
Measured reflectance is what some charts will base their numbers on. There was a nice guide Unity published awhile back about what sRGB value to use for the darkest black, and their number was around 30/255. But as mentioned, these are only rough guides, starting places, you have to eyeball it in the end, relative to the…
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