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working world-glow blend

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minjaesong
2017-07-11 13:34:14 +09:00
parent 3ffdd7233f
commit 1e9c04d7c0
25 changed files with 391 additions and 234 deletions
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25
assets/blendGlow.frag
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varying vec4 v_color;
varying vec2 v_texCoords;
uniform sampler2D u_texture; // world texture, has alpha value that is meaningful
uniform sampler2D tex1; // glow texture, SHOULD contain alpha of all 1.0
void main(void) {
vec4 colorTex0 = texture2D(u_texture, v_texCoords); // lightmap (RGB) pre-mixed
vec4 colorTex1 = texture2D(tex1, v_texCoords); // lightmap (A) pre-mixed
vec4 newColor = vec4(0.0, 0.0, 0.0, colorTex0.a);
if (colorTex0.r > colorTex1.r) newColor.r = colorTex0.r;
else newColor.r = colorTex1.r;
if (colorTex0.g > colorTex1.g) newColor.g = colorTex0.g;
else newColor.g = colorTex1.g;
if (colorTex0.b > colorTex1.b) newColor.b = colorTex0.b;
else newColor.b = colorTex1.b;
gl_FragColor = newColor;
}