shader实现复杂的星空效果

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已于 2022-10-30 16:31:34 修改 · 722 阅读

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于 2022-10-30 16:31:08 首次发布

博客围绕复杂星空展开，参考星空效果，结合Unity技术来实现相关内容，聚焦于信息技术领域的游戏开发方面。

复杂的星空

参考星空效果

// Star Nest by Pablo Roman Andrioli


#define iterations 17
#define formuparam 0.53

#define volsteps 20
#define stepsize 0.1

#define zoom   0.800
#define tile   0.850
#define speed  0.010 

#define brightness 0.0015
#define darkmatter 0.300
#define distfading 0.730
#define saturation 0.850


void mainImage( out vec4 fragColor, in vec2 fragCoord )
{
	//get coords and direction
	vec2 uv=fragCoord.xy/iResolution.xy-.5;
	uv.y*=iResolution.y/iResolution.x;
	vec3 dir=vec3(uv*zoom,1.);
	float time=iTime*speed+.25;

	//mouse rotation
	float a1=.5+iMouse.x/iResolution.x*2.;
	float a2=.8+iMouse.y/iResolution.y*2.;
	mat2 rot1=mat2(cos(a1),sin(a1),-sin(a1),cos(a1));
	mat2 rot2=mat2(cos(a2),sin(a2),-sin(a2),cos(a2));
	dir.xz*=rot1;