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Sunday, June 13 2010

Reflections, Gloss and Fresnel effects

In the past, Blender used EnvMaps (environmental maps) in order to simulate the reflectiveness of objects. But this way was quite difficult, needing the use of Empties (null objects) and layers when a simple reflecting plane was needed. Fortunately, including Raytracing into the renderer eased the whole process and helped to achieve a greater realism.


Fresnel effect demonstration - pay attention to the ground reflections

For Blender: 2.50 Alpha 2 or better

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Saturday, June 12 2010

Making a rain (or snow) effect

Simulating rain for still images or for animation is a frequent topic from beginners. This tutorial will try to show a simple way for getting good looking results, while using very basic materials and modeled geometries.


Simulate rain using particles, proof of concept

Simulate falling snowflakes using particles, proof of concept

For Blender: 2.50 Alpha 2 or better

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Wednesday, June 9 2010

Material indices

This short tutorial aims at showing you how to give many different materials to the same mesh.

Obviously, even if for the sake of simplicity, we use in this tutorial only materials with plain diffuse colors, the materials can be textured or combined through the Material nodes as per the needs of the artist.

Using these techniques, you can virtually assign one different material per mesh face during the shading process, and do smart faces selections during the modeling process.

Click to view at full size.

For Blender: 2.50 Alpha 2 or better

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