My project Blog

A-10 Firing

Smoke and fires

using Houdini Pyro simulation

PLAN

Render: redshift

Animate: houdini

Models:https://sketchfab.com/3d-models/a-10-thunderbolt-ii-aefc4f2a29914e779e97be7cf5e7675b

5/8/2024

I have done some firing tests with out wind.

the goal is to make sure the temperature and density settings are correct.

then I will add wind force to the pyro solver, and try to get the correct form of firing smoke.

5/11/2024

Using GAEA to make a beautiful height map, and try different settings.

export final height map, and transfer to mesh by using Height filed node in houdini.

Creaing complex sense by using GAEA.

Mountain node and Rocky node provide different form of landscape.

Write some explain words here

we can use those settings to make different maps, but the important thing is check the Biuld part.

Resolution

ColorSpace

The height range should be set, and then go to the Lv and Clmp to set numbers. making the map look like the final one because the Mountain height you made will change after you set the maximum Height.

5/12/2024

setting camera test

using a constrain network to control the camera, and make it follow the target.

Make shaders and set textures

I have used three different grasses on the landscape.

I have used attribfrompieces node to make group of plants

5/15/2024 PYRO test

firing smoke

boom smoke

Because the direction of the wind force and the kinetic energy are opposite, I ended up with similar shapes.

Adjusting specific values indeed requires repeated attempts. After achieving similar shapes, I started adding noise.

smoke 2

I am trying to customize my smoke simulation.

using ptnum and the two numbers that i set to compare for reducing random point

the two rate could control how fast the point reduced and burned

Turbulence provides a variety of noise.

Fit vop could let me control the noise between -1 to 1

and the image really shows that different between 0-1 and -1 - 1

5/19-20/2024

NEXT, i am going to pre rendering shoots.

pointvelocity

0.8 voxel size

2 voxel size

5/25-27

2024

V3

smoke looks correct, but its too small.

after I increase VOXEL SIZE its go small.

need to check pyrosolver-shape-coolrate-and time shift.

V2 SMOKE PROBLEM

The smoke is wired. smoke got the wrong shade. need to check the density and volume shader

V4

miss shadow. I should try multiple lights.

5.30/2024

FINAL WORKS

I HAVE CHANGED THE SIZE OF THE PLANTS AND THE SMOKE SIZE. COLOR CORRECTION， FINAL TEST AND RENDER.

VOXEL SIZE SEATED AT 0.1

RENDER TIME 12HOURS