Final gather and radiosity were used to compute multiple bounces of the sun and atmospheric light in the interior spaces.
Final Gather creates a dramatic effect of light pouring in from small exterior openings.
"); ///Ambient Occlusion features_array[ii++] = new feature("3", "Ambient Occlusion", "Ambient Occlusion
Ambient occlusion is the simplest of all global illumination methods in RenderZone. Control of ambient occlusion is easy and straight forward. By manipulating just a few parameters, one may turn an otherwise flat shaded image into a detailed, shaded rendering with a high degree of realism. It can be used for both interior and exterior scenes. Rendering times increase only slightly.
Ambient occlusion in this interior scene adds subtle shadows to corners and around furniture.
Ambient occlusion may be used for artistic effects, such as pencil stipples.
In these exterior renderings, ambient occlusion enhances details in the facade and building volumes.
");
////////Advanced Lights
features_array[ii++] = new feature("4", "Advanced Lights", "Advanced Lights
In addition to basic light types, such as distant, point and cone lights, RenderZone offers advanced lighting which more accurately simulates atmospheric and non uniformly distributed light sources. These light types include sky, area, line and environmental lights.
Atmospheric light effects are used in these images to create very soft shadows and realistic illumination.
An environment light map is used to illuminate the scene with a photographic image.
Multiple light sources of different types are mixed in this interior.
"); ////////Advanced Lights features_array[ii++] = new feature("5", "High Dynamic Range Images (HDRI)", "High Dynamic Range Images (HDRI)
High Dynamic Range Images (HDRI) can be used as the source for environment lights leading to realistic images with smooth shadows and complex illumination. HDRI may also be used as environment reflections and image backgrounds combining all three aspects in a single rendering.
For different HDRI maps were used in these renderings as environment lights, reflective environments and background.
"); ////////Volumetric shadows features_array[ii++] = new feature("6", "Volumetric shadows", "Volumetric shadows
RenderZone may simulate the interaction of light and dust particles in the air to create a volumetric glowing effect, also known as volumetric shadows. This effect can be enabled on a per light basis for certain light types.
");
//////Materials
features_array[ii++] = new feature("7", "Materials", "Materials
State of the art shaders are used to render surfaces and other effects. A material is defined by up to four layers of shaders, which produce color, reflections, transparency, and bump effects. Shaders are either procedural or precaptured texture maps. Procedural shaders generate a pattern by executing a procedure. These effects are generated from scratch and do not use a prestored image. In contrast, precaptured texture maps use an image file which is mapped onto a surface, either for painting the image on the surface, or for using the image as a transparency filter or as a bump map.
This image was produced with numerous variations of the procedural wood color and bump shaders.
The interface of the Solid Wood color shader.
Surface reflections may be simulated by fast shaders for simple effects or may recreate accurate glass like and metallic effects using raytrace algorithms. The later calculate the reflection of light using the Fresnel filtering method, which specifies how the specularly reflected fraction of incident light varies with the angle of incidence on a given surface material.
Accurate glass, metal and mirror reflections with raytrace shaders.
The car body was rendered using the multi layer paint reflection shader.
"); //////Material Libraries features_array[ii++] = new feature("8", "Material Libraries", "Material Libraries
Materials can be created from scratch or may be chosen from a set of libraries containing metals, glass, brick, stone, wood and other commonly used materials. Predefined materials are added to a project with a simple drag and drop mechanism.
The Material Library interface in RenderZone
"); ///////Decals features_array[ii++] = new feature("9", "Decals", "Decals
Decals can be attached on top of other materials to produce a variety of rendering effects, such as labels on objects, graffiti on walls, partially reflective surfaces, masked transparencies, and more. Up to thirty-two decals can be applied to a single object and, because these decals may freely overlap, the rendering effects can be combined in virtually unlimited ways.
The labels were added as decals.
"); ///////Postprocessing Effects features_array[ii++] = new feature("10", "Postprocessing Effects", "Postprocessing Effects
Certain rendering effects can be added to a completed image without the need of re-rendering the scene. Effects such as depth blur, lens flares and exposure correction can be enabled one at a time or in combination with each other. Each effect executes very fast allowing for many alternatives to be explored interactively.
Postprocessing blur was added to this image to enhance the depth preception.
Lens flares give the impression of light artifacts from an optical camera lens.
"); ///////Decals features_array[ii++] = new feature("11", "Rendering Development", "Rendering Development
Renderings can be developed by adding effects one at a time, trading increased realism for rendering speed. Initial renderings may be simply shaded. To increase realism, global illumination effects may be added one at a time. Portions of the scene may be rendered with the Render Area rectangle, allowing for small snapshots of scene to be generated at much reduced rendering speed.
Starting with a basic rendering and a sun light only.
Adding final gather gives better light distribution
Enabling atmoshperic light adds illumination from directions other than the direct sun light.
A short amount of time spent by radiosity distributes the light further.
In the final stages, ambient occlusion adds subtle shading in corners and around the furniture.
Testing different floor materials using the Render Area feature.
"); //////Sketch Render features_array[ii++] = new feature("12", "Sketch Render", "Sketch Render
Sketch is a separate rendering plugin, which is based on an initial RenderZone rendering. It adds effects which make the image appear as if it were drawn by hand using various traditonal paint and pencil methods.
