How to do Rain

How To Add More Material Slots In 3ds Max, closest casino to stuart florida, partie de poker temps, slot machine graphic images. 6-Forgot your password? Start Playing on Slots Empire Casino read review-February 19, 2019. Mostly I need this for making atlas map page with PBR materials, and only the diffuse channel does a un-modified transfer from one uvw channel to another. If I could batch swap different channels, say specular level or normal, or metalness (IOR) map slots, with diffuse map slot it could solve a lot of problems and save a lot of time.

What is rain ? Rain in this context is the influence of rain on buildings, especially below window benches and at the (top) edge of a building. RichDirt provides 3 important functionalities:

1. Dark areas below benches
2. Streaks that wash away dirt below benches
3. Streaks that start at the top edge

Step by Step

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1. Copies of the tutorial model are available.

For RichDirt V-Ray click here and for RichDirt mental ray click here. For Max 2016,15,14,13,12,11 use V-Ray here and mental ray here. The 'old' versions will show warnings for a missing texture and missing dll, press open and continue for these warnings. The model will load.

2. Open the Compact Material Editor. Create a new Multi/Sub Object material. Name this ´myMultiSub´.

3. Create a new mental ray Arch and Design material or a V-Ray material. Name this ´myWallMtl´.

4. Open ´myMultiSub´ material again. Add ´myWallMtl´ to slots 2,3,4,5 of myMultiSub. Make sure to use -instances- (not copy, we want the same wall material used 4 times). See the ´Natural Variations´ tutorial for a snapshot of the UI.

5. Now go back to ´myWallMtl´. Click the diffuse color map button, to add a RichDirt texture. RichDirt is found in the map section of the material and map browser in the standard maps. Name the texture ´WallDirt´.

6. Make the Dirt color -red- and do a short test rendering. Select the wall geometry in the viewport. In the material editor press the ´Assign Material to Selection´ button. If everything worked fine you should see some red around the windows. In version 1.06, and higher this will be stronger than in the image below :

7. Here starts the interesting part of the tutorial - Adding rain !
Go back to the ´WallDirt´ texture. Select the ´Below Bench (Strong)´ preset. Also change the ´Clean´ color to rgb 0.973, 0.871, 0.612. Now render again :

8. Great structures ! This would take forever if done by hand. What Next ? How to get such structures for the upper edge of the building ?. RichDirt has 2 flags AO - (Ambient Occlusion) and IO (Inner Occlusion). AO is for objects that stick out of a facade. Like a window bench. The top edge does -not- stick out. So we add IO here.
Surprise ! - if you render now the streaks will be gone. Why ? Do not forget to also enable -streaks- for IO. If this isnt active dirt from IO will remain ´everywhere´ - dirt from IO is -added- to dirt from AO, so if IO doesnt have streaks it will look like it ´removed´ the AO streaks. The next image shows the streaks rollup - to enable streaks for IO.
Also add the ´mirror´ material to slot 6 of ´myMultiSub´ to get nicer windows. The geometry used for the facade uses ID 6 for the windows (by chance .. in your models this will be different).
The image now looks like:

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9. RichDirt supports many variations of dirt. Since this would be to much to show in this tutorial, just a few ideas are mentioned. a) Modify the `Wash Length´ in the Streaks tab to get longer and shorter streaks. b) Add your own the streak map or modify the size of the builtin to get different streaks. c) Modify the ´spread´ to get more blurred streaks - try 15 degrees. For fine control it is possible to mix different RichDirt with the 3ds Max composite node (see the step 13 in the ´Natural Variations´ tutorial).
As a last step in the tutorial we make the streaks less strong, like less water washing dirt away. In the streaks rollup set ´Amount´ to 80. In the main rollup set ´spread´ to 20 degree. This creates a natural appearance for older buildings.
If you want to use rain (streaks) in a subtle way simply use a color that is similar to the clean color (when using bitmaps use the same bitmap a second time with a color correction).

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