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The regular elements don't work well with mental ray. In 2009, they've made elements specifically for use with mental ray renderer.
Chris Medeck
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Rasheed, there is a Defect Submission Form that you should fill out regarding this issue.
To explain better to anyone else viewing this post, the file attached above contains a simple plane with a blend material on it. There is a black and white bitmap image in the mask slot. With a TIF (uncompressed image) as the mask, the Diffuse element renders correctly. With a JPG saved with minimal compression (quality 12), the element renders with some artifacting around the edge of the mask. However, the main rendered image looks has a crisp edge yet. If a JPG with quality of 5 is used, the main image still renders with a crisp edge, but the element renders with only a few pixels as the second color, and the rest of the area is the first color.
In a nutshell, the element is severely degrading the quality of the bitmap used as a mask in the Blend material when using the mental ray renderer. With Scanline, it all renders as expected. Changing the base materials to A&D from Standard and using the mr optimized elements does not change anything when rendering mental ray.
My apologies, Rasheed, for not reading your post more closely, or fully testing your file.
To explain better to anyone else viewing this post, the file attached above contains a simple plane with a blend material on it. There is a black and white bitmap image in the mask slot. With a TIF (uncompressed image) as the mask, the Diffuse element renders correctly. With a JPG saved with minimal compression (quality 12), the element renders with some artifacting around the edge of the mask. However, the main rendered image looks has a crisp edge yet. If a JPG with quality of 5 is used, the main image still renders with a crisp edge, but the element renders with only a few pixels as the second color, and the rest of the area is the first color.
In a nutshell, the element is severely degrading the quality of the bitmap used as a mask in the Blend material when using the mental ray renderer. With Scanline, it all renders as expected. Changing the base materials to A&D from Standard and using the mr optimized elements does not change anything when rendering mental ray.
My apologies, Rasheed, for not reading your post more closely, or fully testing your file.
Chris Medeck
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The CER is what is sent when Max crashes. What you did was filled out a Defect Report. Slightly different, but both inform Autodesk of a problem, and they are taken seriously. As far as I know...
I will say that the problem you discovered likely does not affect a large number of users, and is not necessarily crippling. As you show in your example, a low quality jpeg will not render a correct element, but a TIF file will. So you have a way to work around the issue, until it gets fixed. Incidentally, I was playing around with your file again, and discoved the quality of the Element using the Quality 12 jpeg was increased by disabling Filtering (default is Pyrimidal).
Sorry your problem persists, but I recommend resubmitting the defect report with 2010.
I will say that the problem you discovered likely does not affect a large number of users, and is not necessarily crippling. As you show in your example, a low quality jpeg will not render a correct element, but a TIF file will. So you have a way to work around the issue, until it gets fixed. Incidentally, I was playing around with your file again, and discoved the quality of the Element using the Quality 12 jpeg was increased by disabling Filtering (default is Pyrimidal).
Sorry your problem persists, but I recommend resubmitting the defect report with 2010.
Chris Medeck
Did you find this post helpful? Feel free to Like this post.
Did your question get successfully answered? Then click on the ACCEPT SOLUTION button.
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