Hi everybody,<br><br>As I wrote in last week's report this week the time I had to dedicate to the soc project was scarce.<br>Monday I implemented the two light source types that were still missing, spot and area lights. Both implementations still have flaws, regarding the spot light the transition between illuminated and non-illuminated pixels isn't smooth and when the square mode is active an event is needed to update the matrix sent to the shader. Regarding the area light, when the x or y size becomes very small, the result produces artifacts, and although I believe it is a precision problem I will have a closer look next week.
<br>As you all might already know, the branch doesn't work on ATI cards. First, as Brecht brought to my attention ATI's implementation doesn't recognize the int type nor the ## preprocessor concatenation symbol. I corrected it and tested it on a X1900 and the shaders compiled and it works for a light and sometimes even two, but then, when changing a light parameter or creating a new light, blender crashes, both in windows and linux. In linux I was able to see that the crash occured within the driver.
<br>Today I read the render's colorband code and planned the colorband creation which will consist in the creation of a 1D texture using the assigned interpolation function and then just look for the texel on shader. Still haven't decided but probably will have a texture just used for colorbands keeping an offset to track each colorbands position. This way the shader code will only have to be rewritten if the input type or blending method changes. When any other change occur, it will only be necessary to create a texture.
<br><br>Next week I plan to have the colorbands implemented and start to do texturing.<br><br>I apologise for missing last sunday meeting and for not dedicating the time needed to the project the last two weeks. Finally the intership's bureaucracy is over and now I can work on soc full-time.
<br clear="all"><br>Cheers,<br>Miguel Torres Lima