Saturday, April 25, 2020

Lava river developing & Riverbank moulding

[Second Year] Specialist Animation Studies





Sat 25th April 20:



First, a video called 'Simple environment modelling and texturing in Maya' showed a guide of how to make a riverbank with clear water. Also  'How Do I Render: Lava (Renderman & Maya)' was a video where how to make a lava river was shown with Pixar's Renderman. A combination of these two video guides used together helped towards the creation of an original lava river display.

The project was to start a plane, but a cube was accidentally used instead. The realisation led to the change to a plane so that the project could officially begin. After the 'simple environment...' video, the plane was scaled up to an appropriate size of W52.643 H49.226. Adding 50 subdivisions allowed the modelling to be smoother, and turning the grid off made the plane clearer to see.

To create the mountains and crevice, the sculpting tool from Mesh Tools > Sculpting Tools > Sculpt Tool was useful. This tool made sculpting the plane more precise and aesthetically accurate for the intended design. To change the size of the brush, press B key + Left mouse key.

To create small bumps in the riverbank, use the Sculpt Tool which is also how the crevice through the plane was created. A separate plane was put through the river. Afterwards, the riverbank was textured with  a fractal texture and a few of the properties of the sliders were changed. Later, the colour balance of the texture was changed however, this didn't change the black and white colours in the textures to be different colours. It was discovered that the texture had to be turned on in the viewport for the colour to show within the fractal texture.

Then, a skydome was added to give the environment light in the Arnold Renderer. After doing a render, the fractal texture had to be adjusted along with the lighting until it looked aesthetically precise.After getting the texture and lighting precise, the second video started 'How Do I Render: Lava (Renderman & Maya)' to create the lava river. However, Renderman had to be installed from Pixar's website 'renderman.pixar.com' to create the lava effect.

Initially, the plugin for Maya couldn't be downloaded due to not installing the program. Installation would have taken an unknown amount of time which made the download considerably more difficult. Point lights with different colours needed were set up as the light in the Renderman video wasn't available.

Another video called 'How to create lava using Maya particles and Realflow' helped create a thicker flow in the lava river. This video showed how to make a particle emitter for the lava flow, but a few issues occurred with the emitter as the flow was moving vertically rather than horizontally. There was also the issue of the lava flow falling through the plane, but a collide on the plane was difficult to apply since the methodology was unknown. Experimentation with different properties was implemented to try and solve the problem of the flow falling through.


References

design ash. (2018, 19 Feb). Simple environment modelling and texturing in Maya. [Video file]. Retrieved from https://youtu.be/P3K-gD-GINA [Accessed 25th April 2020]

Padexi. (2011, 26 Feb). 00002 - How to create lava using Maya particles and Realflow. [Video file]. Retrieved from https://youtu.be/dEF-WsopoJs [Accessed 25th April 2020]

Pixar. (1986 - 2020). RenderMan Version 23 is Here!. Retrieved from https://renderman.pixar.com/ [Accessed 25th April 2020]

Small Robot Studio. (2017, 28 Aug). How Do I Render: Lava (Renderman & Maya). [Video file]. Retrieved from https://youtu.be/B8AA9tXhxq4 [Accessed 25th April 2020]