ago, the company announced a new version of Autodesk 3ds Max 2012 . 3ds Max was again from the previous version enriched with several new features. One of them is integrated with Iray rendering system which contributed to the riverbed by Mental Images.
Iray is integrated rendering tool for creating photo-realistic images. His main priority is to get rid of 3D graphics rendering lengthy setup. Iray do this for you and try to mimic as closely as possible during render physically accurate calculation. Iray used to calculate the standard picture your CPU with the support of more core processors with supporting Hyper-Threading. Since recently starting to render all systems also support rendering using graphics cards as Iray in this lag. Supports NVIDIA CUDA which, using CUDA GPU acceleration units can significantly speed up rendering time. There is talk of it as another milestone rendering revolution because Iray provides photorealistic results within one click. Or so I decided to try on my own and Iray undergo several tests.
the scene
On behalf Iray undergo the test, I invested time and I prepared a simple interior scene with a single bed, table and image that I nasvetľoval ONLY by system Daylight . As the sunlight I used mr Sun and Sky (indirect light) I used mr Sky. Daylight system so I headed to my shedding light on my stage right through interior windows.
materials for the interior I used to actually Shader ArchDesign defined parameters and textures.
The material is suspended because we must recognize the fact that Iray cooperated with all the shaders and maps. Iray cooperates well with Shader ArchDesign or in addition to Autodesk Autodesk Material Metallic Paint and also with Shader Multi Sub-Object material. While working with shaders ArchDesign but supports all its features or settings. Iray Ignore Reflection - Glossy Samples, Fast (Interpol) and Highlights + FG Only. The same applies for thus setting refraction refraction.
Iray also ignores effects such as ambient occlusion and Round Corners (rounded corners), advanced settings acceleration calculations reflectance (Fast Glossy Interpolation rollout) or advanced settings Rendering (Advanced Rendering Options rollout) except Refraction - Max Distance and Color At Max Distance and Advanced Options Transparency - Glass / translucency Treat As Objects and Back Face Culling and finally in the Maps tab, Special Purpose ignores the option Do Not Apply To The Bumps Diffuse Shading.
us remains as the last set exposure. Since Iray supports only mr Photographic Exposure Control was left me nothing but use it and set parameters.
scene we should be finished and we can get down to testing.
So I decided to turn the Mental Ray rendering and I set the minimal and FG Bounces I set to 2 so that the scene was dark and was see the result of inactive and FG Precision Presets I set to Medium. The material was left Sampless value defaults to 8 and have never been used Ambient Occlusion effect.
resulting render is to render on my Intel Core i3 - 4 computational threads 960x540 resolution at 11 minutes. Fared quite well up to that would be necessary to improve the quality of the calculations of reflection and illumination of the solution or part lighten picture - these are just steps to iray has been developed.
The material is suspended because we must recognize the fact that Iray cooperated with all the shaders and maps. Iray cooperates well with Shader ArchDesign or in addition to Autodesk Autodesk Material Metallic Paint and also with Shader Multi Sub-Object material. While working with shaders ArchDesign but supports all its features or settings. Iray Ignore Reflection - Glossy Samples, Fast (Interpol) and Highlights + FG Only. The same applies for thus setting refraction refraction.
Iray also ignores effects such as ambient occlusion and Round Corners (rounded corners), advanced settings acceleration calculations reflectance (Fast Glossy Interpolation rollout) or advanced settings Rendering (Advanced Rendering Options rollout) except Refraction - Max Distance and Color At Max Distance and Advanced Options Transparency - Glass / translucency Treat As Objects and Back Face Culling and finally in the Maps tab, Special Purpose ignores the option Do Not Apply To The Bumps Diffuse Shading.
us remains as the last set exposure. Since Iray supports only mr Photographic Exposure Control was left me nothing but use it and set parameters.
scene we should be finished and we can get down to testing.
Testing
Since Iray develops the same company which is involved in 3ds Max's on Mental Ray and are closely interlinked, rendering these systems, I could not try the same scene, with the same settings of light, the same materiálmy, will render the image without inactive major interventions The Rendering Buttons, and compare the visual results that would in case of success Iray pointing to its great capacity for which it was designed.Mental ray
So I decided to turn the Mental Ray rendering and I set the minimal and FG Bounces I set to 2 so that the scene was dark and was see the result of inactive and FG Precision Presets I set to Medium. The material was left Sampless value defaults to 8 and have never been used Ambient Occlusion effect.
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| Mental Ray - 11 minutes / FG Precision Presets for medium and FG Bounces: 2 |
resulting render is to render on my Intel Core i3 - 4 computational threads 960x540 resolution at 11 minutes. Fared quite well up to that would be necessary to improve the quality of the calculations of reflection and illumination of the solution or part lighten picture - these are just steps to iray has been developed.
Iray
Iray render us with only two tabs rendering settings. The first is well known and Common Renderer second tab which is only render Iray. There are two card setup and it is iray and Advanced Parameters. The card iray we can set the duration of the calculation - that indicate precisely Možme hours, minutes and seconds. In Iterations (number of passes): We can set you takzv. number of passes. Finally, the Unlimited option whereby we will render image unless we stop manual rendering.
second tab gives us options as Trace / Bounce Limits in which we can set the limits of light reflectivity. Physically Correct Choice (Unlimited) - The light will be reflected fully in the picture rendering. The last option Maximum Number of Light Bounces you how much we can preset the reflections enable the rendering.
last group setting is Image Filtering (Antialiasing) is the smoothing of the image, Displacement (Global Setting) - Možme globally set deformation maps and the last Material Override option where all materials rewrite one scene created material.
Since render in Mental Ray lasted for 11 minutes so I decided to render in Iray will take equally long for results comparison. Iray I set the Advanced Parameters tab - Trace / Bounce limits for physically correct results. Other additional settings which are used in mental ray as the quality of shadows, refraction, reflection or inactive number posted rays for the calculation of indirect lighting carry Iray available because it is perfect to do it all for us.
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| Iray 11 minutes / set the default rendering |
resulting render up to the noise that is caused by lack of long render fared well. You can be noted that reflections on the wooden floor are quite good and fine - or do not appear on the walls of the black areas. We achieved this result without inactive adjustment which would render in Mental Ray, we had to go but Iray that saved us from a "set" it for us.
for better quality and still render would be left longer render the image. I had this image render further 9 and a half hours and the final render you can see:
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| Iray - 9 am. 30min. / Default setting |
result is nice photorealistic , post-production piece of the bitmap editor such as Adobe Photoshop or Gimp which is free, and the render is finished.
Conclusion testing rendering interior
This testing compared with mental ray and iray we found that in iray without rendering any settings we can get a nice photo-realistic result but at that time needed to achieve a nice render inactive without a sharp noise must be longer.
Self Illumination
And as for that object samoosvetlovaci self illumination?
I decided to also try. On the table we have in our scene, I can create a new primitive object - teapot. I prepared his material with feature Arch Design Self Illumination (Glow) where I group Luminance unitless parameter set to value 100 000 Glow in the group parameter options I turned Illuminates the scene (when using FG) which allows us to illuminate the scene object with this material.
I decided to also try. On the table we have in our scene, I can create a new primitive object - teapot. I prepared his material with feature Arch Design Self Illumination (Glow) where I group Luminance unitless parameter set to value 100 000 Glow in the group parameter options I turned Illuminates the scene (when using FG) which allows us to illuminate the scene object with this material.
Mental Ray
For comparison, I am prepared to render mental ray rendering default value. Again, I just increased FG Bounces to 2 and Final Gather for Precision medium.
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| Mental Ray - 8 minutes / FG Precision Presets for medium and FG Bounces 2 |
As we can see with the Mental Ray rendering with the default IP self illumination is not very good advice. Would a big hit to set render to Rendered image was visually friendly.
Iray
Iray render I set rendering to 8 minutes. Settings I say let's default Trace / Bounce Limits with checked option Physically Correct (Unlimited).
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| Iray - 8 minutes / default rendering settings |
Conclusion
The resulting comparison with Mental Ray and Iray I wanted to prove what is easy to get to fine render inactive without setting up complex rendering.
Iray is really great rendering tool for creating photo-realistic images. Puts to the fore the emphasis on simplicity and a minimalist rendering settings. However, its disadvantage is that if you do not have under the hood, core i7 intel xtreme graphics card or such. NVIDIA QUADRO thus rendering may take considerably longer.
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