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MiikaHweb Blog -> Development (Page 5)


Smoke patch is now in trunk

Jul-27-2010    0 Comments

Blender SmokeMy smoke patch is now in Blender trunk! Just grab a build later than SVN r30809 and try it out.

Update includes my new smoke patch and some additions by Daniel Genrich, including GUI adjustments, automatic particle system when creating a smoke flow and adaptive timesteps to ensure stable simulation while having high velocity fluid.

Posted by MiikaH at 16:22

Category:Blender, Development
Tags: Blender, Smoke, Patch, Update

Multicolor painting on an animated object

Jul-27-2010    1 Comment

I just uploaded a new video demonstrating "Mesh Paint" with an animated "canvas" object (Mancandy) and multiple colored "paint" objects.

Posted by MiikaH at 07:07

Category:Blender, Development
Tags: Blender, Dynamic Paint, Update

Blender is going to have wetmaps!

Jul-25-2010    3 Comments

Mesh PaintFew weeks ago I started developing a new feature to Blender: wetmaps. Being a simulator fan myself, I have always hoped Blender had some sort of "wetmaps" to allow realistic fluid simulations.

Well, now I finally started implementing it but it turned out to be a lot more. I call it "Mesh Paint" atm.

Check out some of my first tests:

Basic wetmaps:


Other kind of mesh interaction:



This system allows you to "paint" textures with other animated objects or particles. The "canvas" can be any mesh and it can even be animated. You can also specify colors for painter objects. Result will be saved as an image sequence that can be used on canvas as texture to produce preferred effect.


However, this project is still in very early stage so there is no downloadable build or patch available anytime soon. All depends on how much time I have and if I manage to keep motivated. :)

Posted by MiikaH at 21:05

Category:Blender, Development
Tags: Blender, Dynamic Paint, Update

New Blender Smoke Patch

Jul-06-2010    3 Comments

Second smoke patchI have just finished a new patch to improve Blender 2.5 smoke simulator.


The major changes in this patch are:

Smooth High-Res Emitter

When using high resolution, the smoke usually gets blocky around the emitter.
Old Blocky Smoke Smooth Smoke
This patch adds a new setting to use "smooth" emission. (Right image)

Additive Emission

Now it's possible to make emitter to add density values to current density in the scene. So you can use low density emitter, like 0.1, and still have dense smoke. This allows even smoother emission.

Changing smoke vorticity

This patch allows you to change smoke vorticity. It defines how much turbulence or rotation fluid has. So lowering it gives you very smooth smoke.

I made this candle simulation using just 0.1 vorticity:



Some minor updates are: domain border collision settings, "Time Scale" slider and "Initial Velocity" multiplier.

You can check complete changelog here: Patch changelog
And download the patch here: Download the patch

Also my Blender Builds are using this patch. So just download a build here.

Posted by MiikaH at 19:02

Category:Blender, Development
Tags: Blender, Patch, Smoke

Blender smoke update: domain border collisions

Mar-17-2010    0 Comments

Domain Collision SettingsI just finished a new feature for Blender smoke simulator: a possibility to change how smoke collides with domain borders.

The old system let smoke go through top and bottom sides of the domain but not the "walls". That caused some problems when using strong horizontal wind.

Now it's also possible to make the smoke to not collide any side or to collide with every side of the domain.


Update:

Added a possibility to change "Initial Velocity" multiplier.

Updated code patch can be downloaded here: smoke_collision_patch2_rev29368.patch
I have also updated my Blender Builds to use this patch.

Posted by MiikaH at 18:46

Category:Blender, Development
Tags: Blender, Smoke, Patch, Collision

Smoke patch is now in Blender SVN

Jan-25-2010    1 Comment

Blender 2.5 smoke testingMy smoke simulator patch is now in Blender SVN. (Rev 26250)

Most visible changes in that patch are better support for multicore processors (OpenMP), more simulator related textures and a possibility to pass emitter particle's velocity to the smoke.

Posted by MiikaH at 16:24

Category:Blender, Development
Tags: Blender, Smoke, Patch

Smoke patch v3 released

Jan-15-2010    0 Comments

BlenderI just added a new version of smoke patch.

It's now possible to use smoke velocity as a texture and to change smoke cache compression method. (Light compression is recommended due to better performance.)

Downloads:
Precompiled builds
Patch file

Smoke patch changelogs: smoke_changes.txt

Posted by MiikaH at 17:57

Category:Blender, Development
Tags: Blender, Smoke, Patch

Using smoke heat as a texture

Jan-03-2010    0 Comments

Multicolored smoke in BlenderI just finished a Blender patch that allows using smoke heat as a texture. This might be useful in several temperature dependant simulations and it also allows faking some kind of multicolored smoke.


Here's a test video of two smoke flows with different heat values being colored by the heat.


I'll update Blender builds -section and add a patch later today.

Posted by MiikaH at 11:29

Category:Blender, Development
Tags: Blender, Smoke, Color, Patch



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