How do you manipulate individual pixels in a texture in Direct3D on the CPU?

??????? ????? · 2012-06-02T02:45:28

I know that in Allegro it's BITMAP* tex[10]; int& pixel(BITMAP* bmp, int x, int y) { return ((int**)(bmp->line))[y][x]; } but what's the syntax for this in DirectX?

Graphics and GPU Programming Programming

Started by ??????? ????? May 31, 2012 09:35 PM

9 comments, last by InvalidPointer 11 years, 10 months ago

InvalidPointer

1,842

June 02, 2012 02:45 AM

Dumb idea, but you could try drawing a point list for all updated tiles. This won't introduce any pipeline bubbles but could conceivably do the scattered write you want.

(I assume the blendmap is a 1:1 texel:tile map)

clb: At the end of 2012, the positions of jupiter, saturn, mercury, and deimos are aligned so as to cause a denormalized flush-to-zero bug when computing earth's gravitational force, slinging it to the sun.