SCAD x The Mill





Home/ Blog / SCAD x The Mill / week 8

    ② Week 8


    Trail  Mix
                


    Feedback from Mentors (Class 15 )

    1. Shot 03 - Add lens effects to create a less clean look, a subtle camera shake and some imperfections.

    2. Shot 01A —The velocity field issue is causing a mushroom shape in the upper area (impact smoke).
    - Adjust the disturbance or turbulence setting to detail the mushroom shape.
    -  Use the “speed field” in the latest version of Houdini’s fire shader to break up the shape, especially in fast-moving areas.


    Changes made:

    1. Shot 03 - Add subtle lens dirt, a mild camera shake, and a bit of film grain for a less polished look (After Effects).

    2. Shot 01A - Adjust turbulence for added detail, and enable the speed field in Houdini to break up the mushroom shape in high-velocity areas.




    Week 8 Task - Impact smoke fx improvement（shot01 A)

    - Adding Gas Disturbance/Turbulence to break up the mushroom shape.

    - Enable "speed field" in the fire shader to drive turbulence with velocity for natural detail.

    - Boost speed field in high-velocity areas to enhance flow detail and reduce the mushroom effect.

    - Render and update to Dropbox for composting.



    1.  WIP - Adding more detail of shape value and enable speed filed

    Week 7 - Smoke Fx (shot01A) (turbulence only)
    Week 8 - Smoke Fx Test 1 (enable the speed field, and more detail of shape value)
    Week 7 - pyrosolver setting (shape)
    Week8 - Test 1 pyrosolver setting (shape and field)


    The right side shows this week's Test 1. Compared to last week’s test (left side), I adjusted the Turbulence values and added disturbance, shredding, and buoyancy to help the smoke rise and cover the whole product for an easier transition between virtual and reality in the comp part.  I also enabled the speed field in week 8 of Test 1. However, in Test 1, the smoke is still too large, creating an exaggerated effect, and the mushroom shape remains very noticeable.



    2. WIP - Using Speed as a Driving Force & Adding microsolver 

    Week8 -Test 2 (with one GasTurbulence& one GasDisturb)
    Week8 - Test 3 (with three GasTurbulence & one GasDisturb)

    GasTurbulence & GasDisturb & GasBlur
    Using Speed as a Driving Force

    Based on the Mentor’s feedback and Pyro tips from Prof.Fowler’s web (https://deborahrfowler.com/HoudiniResources/MiscSources/HoudiniPresentations.html), I use Gas Disturbance and Gas Turbulence, set the Control Field to speed.  Adjust the Threshold and Range to ensure that disturbances occur only in areas with higher speeds, generating more flow details and reducing the mushroom shape.

    The primary difference between Test 3 and Test 2 is that Test 3 utilizes three levels of detail in gas turbulence. Adjusting the size and strength, creates a more intricate and realistic smoke effect, avoiding the typical mushroom-shaped puff seen in Test 2.


    Test 4: change the threshold field of Turbulence (from Temperature to Speed)

     
    Temperature - speed (Threshold filed)


    3. WIP -  Enhancing Smoke Coverage for Smooth Transitions

    Example: the beginning solid smoke doesn't cover the whole package  (screenshot of Test 3)


    Week8 - Readjust particle shape and direction

    Based on the previous feedback from the compositor, I readjusted the particle shape and direction to ensure the smoke (beginning high-density part) effectively covers the entire packaging. This is for the transition between the real and virtual elements while maintaining a seamless integration of the impact smoke.



    Week8 - Final (shot01A)
    Week8 - Final rendering (shot01A)

    Week8 - Rough Comp in Pr



    COMPARING


    Week 7 - Final (shot01A)
    Week7 - Final rendering (shot01A)



    Rendering

    Just like in previous weeks, I’ve rendered all the elements separately and uploaded them to Dropbox. 




    Yilin Zhao / SANM560 / SCAD x The Mill