compute_vel.cg

来自「游戏编程精粹６第中关于粒子的实时流体仿真系统,对入门的游戏开发者很有帮助．」· CG 代码 · 共 12 行

#include "sph.cg"

void main(float index : TEXCOORD0,
		  uniform samplerRECT attr_rect : TEXUNIT0,
		  uniform float timestep,
		  out float3 result : COLOR)
{
	float3 vel_half = f3texRECT(attr_rect, float2(index, GPU_ATTR_VELHALF));
	float3 acc = f3texRECT(attr_rect, float2(index, GPU_ATTR_ACC));

	result = 0.5*(vel_half + vel_half + timestep*acc);
}