آموزش تکنیک های ساخت جنگل شماره 2

عنوان دوره : Gnomon Workshop – Forest Techniques Part 2 – Grass and Plant Instancing in Maya & Mental Ray

سطح : پشرفته

زمان کل دوره : 8.41 ساعت

تعداد فایل های تصویری : 14

سال آموزش : 2015

فایل تمرینی : دارد

مربی دوره : Alex Alvarez

نرم افزار : maya -mental-ray

زیرنویس : ندارد

Gnomon Workshop – Forest Techniques Part 2 – Grass and Plant Instancing in Maya & Mental Ray 

In this title, Alex covers how to create realistic grass using Maya, Paint Effects and Mental Ray while also sharing his techniques for developing a complete natural environment. We begin by evaluating the default Paint Effects grass library with discussion on the basic adjustments needed to make grass more natural. Techniques for covering large areas with grass are then explored via curves and instancing. Through the use of instancing, particles and surface emitters, Alex shows how to populate large scenes with grass geometry, rendering millions of polygons with a minimal RAM footprint. Included is an expression based technique for orienting instanced geometry with the normal of the generating surface, an issue less important for plants or trees but often very important for grass. When elements need to be interactively and precisely placed, Alex also demonstrates the use of a freely available geometry paint script, as well as how to bake particle instances to geometry. Generating textures, miaMaterials and workflow in conjunction with Physical Sun/Sky is thoroughly discussed. Alex also demonstrates how to render and utilize zDepth passes to add post depth-of-field and fog effects, how to render true volumetric fog effects, as well as Photoshop and After Effects post techniques to increase realism through the use of color correction and plug-ins, including Magic Bullet, LensCare and Sapphire.

1. Grass Shaders
2. Grass Coverage, Z-Depth, Depth-of-Field
3. Cliff: Integrating Grass into a Scene
4. Meadow: Instancing, part 1
5. Meadow: Instancing, part 2
6. Meadow: Instancing, part 3
7. Meadow: Geometry Paint
8. Meadow: Additional Elements
9. Meadow: Photoshop Comps
10. Meadow: Final Layout
11. Baking Instances to Geo
12. Render Setup
13. Final After Effects Comp