grass field: some particles display texture, others don't

Support Particles and Physics Simulations
1

I’m rendering a grass field. The first material of the emitter is solid black and the second has a grass-like color ramp. I have the emitter set to render particles with Matierial 2. When I render, I get this:

http://www.imageshack.com/scaled/large/543/1owx.png

Strips of grass render correctly and the rest appear to be white dots… What is causing this?

2

Is your texture mapping coordinate set to Strand/Particle? If not, I suspect this is the source of your problem.

3

It is set to strand render.

4

Got a .blend file?

5

.blend
…

6

2013-07-07_1653.jpg1919×1040 499 KB

Material – Texture Panel – Mapping – Coordinates – Strand/Particle

7

oops. Thx
…