Comments on: Interesting bits http://www.realtimerendering.com/blog/interesting-bits/ Tracking the latest developments in interactive rendering techniques Mon, 17 Jun 2013 03:17:13 +0000 hourly 1 http://wordpress.org/?v=3.4.1 By: TimothyFarrar http://www.realtimerendering.com/blog/interesting-bits/comment-page-1/#comment-24 TimothyFarrar Fri, 03 Oct 2008 15:22:45 +0000 http://www.realtimerendering.com/blog/?p=56#comment-24 I think the sunfish studio rendering technique works by adaptive hierarchical subdivision of the scene, working in a 2D image space kdtree. Guessing they compute parameters such as depth, color, and position for each of the corners of the regions of the tree subdivision, then knowing the deltas of those parameters, adaptively choose a new division based on the on the most important ones (such as depth to find object boundaries). At some point the subdivision is smaller than a pixel and they only have to subdivide subpixel regions far enough to get a semi-accurate of the image which exists in that pixel of which they use to compute the output color of the pixel. I think the sunfish studio rendering technique works by adaptive hierarchical subdivision of the scene, working in a 2D image space kdtree. Guessing they compute parameters such as depth, color, and position for each of the corners of the regions of the tree subdivision, then knowing the deltas of those parameters, adaptively choose a new division based on the on the most important ones (such as depth to find object boundaries). At some point the subdivision is smaller than a pixel and they only have to subdivide subpixel regions far enough to get a semi-accurate of the image which exists in that pixel of which they use to compute the output color of the pixel.

]]> By: Marco Salvi http://www.realtimerendering.com/blog/interesting-bits/comment-page-1/#comment-23 Marco Salvi Fri, 03 Oct 2008 08:07:34 +0000 http://www.realtimerendering.com/blog/?p=56#comment-23 Eric, No micropolygons, no point sampling..that can be anything that is not evaluated through point sampling, that is triangles, implicit surfaces, voxels, etc.. I literally spent 30 seconds on ep.espacenet.com and I found a few patents that are probably related to sunfish studio rendering technology. To 'sample' primitives they use something called interval analysis (never heard about it before). Here's a list of patents: http://v3.espacenet.com/results?sf=a&DB=EPODOC&PA=sunfish&PGS=15&CY=ep&LG=en&ST=advanced&IN=HAYES+NATHAN Marco Eric,

No micropolygons, no point sampling..that can be anything that is not evaluated through point sampling, that is triangles, implicit surfaces, voxels, etc..

I literally spent 30 seconds on ep.espacenet.com and I found a few patents that are probably related to sunfish studio rendering technology. To ‘sample’ primitives they use something called interval analysis (never heard about it before).

Here’s a list of patents:
http://v3.espacenet.com/results?sf=a&DB=EPODOC&PA=sunfish&PGS=15&CY=ep&LG=en&ST=advanced&IN=HAYES+NATHAN

Marco

]]> By: Mauricio http://www.realtimerendering.com/blog/interesting-bits/comment-page-1/#comment-22 Mauricio Fri, 03 Oct 2008 07:51:35 +0000 http://www.realtimerendering.com/blog/?p=56#comment-22 Ah, but are the parking garage signs equally readable sitting in a Hummer (high) or a VW Beetle (low)? Maybe they don't have that problem in Melbourne... :) Ah, but are the parking garage signs equally readable sitting in a Hummer (high) or a VW Beetle (low)? Maybe they don’t have that problem in Melbourne… :)

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