Files
OpenSceneGraph/examples/osgprecipitation/point_rain.vert
2006-04-11 10:53:46 +00:00

23 lines
495 B
GLSL

uniform vec3 position;
uniform vec3 dv_i;
uniform vec3 dv_j;
uniform vec3 dv_k;
uniform float inversePeriod;
uniform float startTime;
uniform float osg_FrameTime;
varying vec2 texCoord;
void main(void)
{
vec3 pos = position + (gl_Vertex.x*dv_i) + (dv_j * gl_Vertex.y);
texCoord = gl_MultiTexCoord0.xy;
vec3 v_current = pos + dv_k * fract( (osg_FrameTime - startTime)*inversePeriod - gl_Vertex.z);
gl_Position = gl_ModelViewProjectionMatrix * vec4(v_current,1.0);
}