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[orx-fx] Add PolarToRectangular, RectangularToPolar and LineBlur

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This commit is contained in:
Edwin Jakobs
2021-08-30 11:45:47 +02:00
parent f379554890
commit 6274e29349
8 changed files with 219 additions and 15 deletions
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19
orx-fx/src/shaders/glsl/blur/box-blur.frag
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@@ -14,10 +14,25 @@ uniform float gain;
uniform vec4 subtract;
uniform float spread;
uniform bool wrapX;
uniform bool wrapY;
#ifndef OR_GL_FRAGCOLOR
out vec4 o_color;
#endif
vec2 wrap(vec2 uv) {
vec2 res = uv;
if (wrapX) {
res.x = mod(res.x, 1.0);
}
if (wrapY) {
res.y = mod(res.y, 1.0);
}
return res;
}
void main() {
vec2 s = textureSize0;
s = vec2(1.0 / s.x, 1.0 / s.y);
@@ -37,9 +52,9 @@ void main() {
for (int x = WS; x<= WE; ++x) {
float lw = 1.0;
#ifndef OR_GL_TEXTURE2D
sum += texture(tex0, v_texCoord0 + float(x) * blurDirection * s * spread);
sum += texture(tex0, wrap(v_texCoord0 + float(x) * blurDirection * s * spread));
#else
sum += texture2D(tex0, v_texCoord0 + float(x) * blurDirection * s * spread);
sum += texture2D(tex0, wrap(v_texCoord0 + float(x) * blurDirection * s * spread));
#endif
weight += lw;