Lighiting problem - AccuRender nXt2024-03-29T05:14:32Zhttp://accurender.ning.com/forum/topics/lighiting-problem?feed=yes&xn_auth=no1. It's very difficult to com…tag:accurender.ning.com,2012-07-22:6293855:Comment:718922012-07-22T14:18:53.374ZRoy Hirshkowitzhttp://accurender.ning.com/profile/RoyHirshkowitz
<p>1. It's very difficult to compare ar4 and nxt. The raytracer in nXt is much faster (~ 4x) but the product calculates much more stuff than ar4 does so it can take longer depending on the setting. </p>
<p>2. Changing the AutoCAD units should not change the brightness of lights in watts. The watts should remain constant. If it's really changing, I'll need to take a look at your drawing. (See below.)</p>
<p>3. nXt has an internal unit of meters. For example, the tile size of a bitmap is…</p>
<p>1. It's very difficult to compare ar4 and nxt. The raytracer in nXt is much faster (~ 4x) but the product calculates much more stuff than ar4 does so it can take longer depending on the setting. </p>
<p>2. Changing the AutoCAD units should not change the brightness of lights in watts. The watts should remain constant. If it's really changing, I'll need to take a look at your drawing. (See below.)</p>
<p>3. nXt has an internal unit of meters. For example, the tile size of a bitmap is always kept in meters internally. They're always expressed to the user in terms of current drawing unit, but the material itself is independent. A material which is created in mm should work perfectly in a drawing whose units are cm or inches (for example.)</p>
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<p>I'm willing to take a look at any of your drawings if you'd like me to. I am out of the office until Thursday, so I won't be able to do anything about it until then. You can upload a file <a href="http://www2.mcneel.com/upload/Upload.aspx?to=roy@mcneel.com" target="_blank">here</a>-- include any instructions I'll need to reproduce the problem.</p> Roy Hirshkowitz said:
I'm n…tag:accurender.ning.com,2012-07-21:6293855:Comment:720932012-07-21T06:25:20.820ZDick Laihttp://accurender.ning.com/profile/DickLai
<p><a href="http://storage.ning.com/topology/rest/1.0/file/get/55260157?profile=original" target="_self"><img class="align-full" src="http://storage.ning.com/topology/rest/1.0/file/get/55260157?profile=RESIZE_1024x1024" width="721"></img></a> <br></br> <br></br> <cite>Roy Hirshkowitz said:</cite></p>
<blockquote cite="http://www.accurender.com/forum/topics/lighiting-problem#6293855Comment72115"><div><div class="xg_user_generated"><p>I'm not exactly sure what you're asking but I'll try anyway. If I'm on the wrong track let me know. </p>
<p>The model units must be set correctly in order for nXt to work properly. Use the…</p>
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<p><a href="http://storage.ning.com/topology/rest/1.0/file/get/55260157?profile=original" target="_self"><img width="721" class="align-full" src="http://storage.ning.com/topology/rest/1.0/file/get/55260157?profile=RESIZE_1024x1024" width="721"/></a><br/> <br/> <cite>Roy Hirshkowitz said:</cite></p>
<blockquote cite="http://www.accurender.com/forum/topics/lighiting-problem#6293855Comment72115"><div><div class="xg_user_generated"><p>I'm not exactly sure what you're asking but I'll try anyway. If I'm on the wrong track let me know. </p>
<p>The model units must be set correctly in order for nXt to work properly. Use the AutoCAD _UNITS command to guarantee that the drawing units are correct (the _INSUNITS system variable does the same thing.) Once you do this, materials should appear at the correct scale and the lighting values will be correct. More info is available <a href="http://wiki.mcneel.com/accurender/nxt/documentation/basic/lighting" target="_blank">here</a>.</p>
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</blockquote> thanks for your answer,
for e…tag:accurender.ning.com,2012-07-21:6293855:Comment:720902012-07-21T03:29:47.436ZDick Laihttp://accurender.ning.com/profile/DickLai
<p>thanks for your answer,</p>
<p>for example,</p>
<p>when i use for the drawing unit,</p>
<p>the lighting setting is 40watts</p>
<p>when i use , it will change to 0.04watts</p>
<p>how can i use mm and normal watts?</p>
<p>thank you<br></br> <cite>Roy Hirshkowitz said:</cite></p>
<blockquote cite="http://www.accurender.com/forum/topics/lighiting-problem#6293855Comment72115"><div><div class="xg_user_generated"><p>I'm not exactly sure what you're asking but I'll try anyway. If I'm on the wrong…</p>
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<p>thanks for your answer,</p>
<p>for example,</p>
<p>when i use for the drawing unit,</p>
<p>the lighting setting is 40watts</p>
<p>when i use , it will change to 0.04watts</p>
<p>how can i use mm and normal watts?</p>
<p>thank you<br/> <cite>Roy Hirshkowitz said:</cite></p>
<blockquote cite="http://www.accurender.com/forum/topics/lighiting-problem#6293855Comment72115"><div><div class="xg_user_generated"><p>I'm not exactly sure what you're asking but I'll try anyway. If I'm on the wrong track let me know. </p>
<p>The model units must be set correctly in order for nXt to work properly. Use the AutoCAD _UNITS command to guarantee that the drawing units are correct (the _INSUNITS system variable does the same thing.) Once you do this, materials should appear at the correct scale and the lighting values will be correct. More info is available <a href="http://wiki.mcneel.com/accurender/nxt/documentation/basic/lighting" target="_blank">here</a>.</p>
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</blockquote> I'm not exactly sure what you…tag:accurender.ning.com,2012-07-20:6293855:Comment:721152012-07-20T13:40:06.013ZRoy Hirshkowitzhttp://accurender.ning.com/profile/RoyHirshkowitz
<p>I'm not exactly sure what you're asking but I'll try anyway. If I'm on the wrong track let me know. </p>
<p>The model units must be set correctly in order for nXt to work properly. Use the AutoCAD _UNITS command to guarantee that the drawing units are correct (the _INSUNITS system variable does the same thing.) Once you do this, materials should appear at the correct scale and the lighting values will be correct. More info is available…</p>
<p>I'm not exactly sure what you're asking but I'll try anyway. If I'm on the wrong track let me know. </p>
<p>The model units must be set correctly in order for nXt to work properly. Use the AutoCAD _UNITS command to guarantee that the drawing units are correct (the _INSUNITS system variable does the same thing.) Once you do this, materials should appear at the correct scale and the lighting values will be correct. More info is available <a href="http://wiki.mcneel.com/accurender/nxt/documentation/basic/lighting" target="_blank">here</a>.</p>