- From: Tab Atkins Jr. <jackalmage@gmail.com>
- Date: Fri, 4 Nov 2011 00:43:39 -0700
- To: "Robert O'Callahan" <robert@ocallahan.org>
- Cc: Dean Jackson <dino@apple.com>, Chris Lilley <chris@w3.org>, Vincent Hardy <vhardy@adobe.com>, Patrick Dengler <patd@microsoft.com>, Dirk Schulze <vbs85@gmx.de>, "public-fx@w3.org" <public-fx@w3.org>
On Fri, Nov 4, 2011 at 12:27 AM, Robert O'Callahan <robert@ocallahan.org> wrote: > One crazy idea I just had to implement event coordinate transformation: > create a 256x256 texture, set each pixel's R value to the X coordinate and G > value to the Y coordinate, apply the vertex shader with an identity fragment > shader, and save the result. To transform an event coordinate, extract from > the result the color value at the pixel you care about, and recover the > original X and Y values from the R and G channels. That's not so crazy. I think Greg Tavares had the same idea. ~TJ
Received on Friday, 4 November 2011 07:44:36 UTC