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Improved atmosphere shader performance

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This commit is contained in:
Anuken
2020-03-30 11:35:22 -04:00
parent 115e3a737b
commit 084c90ba9f
4 changed files with 19 additions and 11 deletions
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20
core/assets/shaders/atmosphere.frag
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@@ -1,3 +1,8 @@
#ifdef GL_ES
precision mediump float;
precision mediump int;
#endif
const float PI = 3.14159265359;
const float MAX = 10000.0;
@@ -6,10 +11,13 @@ const float FLARE = 0.0025;
const float INTENSITY = 14.3;
const float G_M = -0.85;
const int numOutScatter = 10;
const float fNumOutScatter = 10.0;
const int numInScatter = 10;
const float fNumInScatter = 10.0;
#define SCATTER_OUT 3
#define SCATTER_IN 3
const int numOutScatter = SCATTER_OUT;
const float fNumOutScatter = float(SCATTER_OUT);
const int numInScatter = SCATTER_IN;
const float fNumInScatter = float(SCATTER_IN);
varying vec4 v_position;
varying mat4 v_model;
@@ -106,10 +114,6 @@ void main(){
vec3 l = u_light;
vec2 e = rayIntersection(eye, dir, u_outerRadius);
if (e.x > e.y){
gl_FragColor = vec4(0.0, 0.0, 0.0, 0.0);
return;
}
vec2 f = rayIntersection(eye, dir, u_innerRadius);
e.y = min(e.y, f.x);

4
core/assets/shaders/cubemap.frag
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@@ -1,3 +1,7 @@
#ifdef GL_ES
precision mediump float;
#endif
varying vec3 v_texCoords;
uniform samplerCube u_cubemap;