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Simplify orx-jumpflood api

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This commit is contained in:
Edwin Jakobs
2019-08-06 17:45:30 +02:00
parent 640d3edd10
commit 988d07e3a4
4 changed files with 182 additions and 153 deletions
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18
orx-jumpflood/src/main/resources/shaders/gl3/contour-points.frag
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@@ -8,17 +8,15 @@ out vec4 o_color;
void main() {
vec2 stepSize = 1.0 / textureSize(tex0, 0);
float ref = step(0.5 , texture(tex0, v_texCoord0).r);
vec4 outc = vec4(-1.0, -1.0, 0.0, 1.0);
float contour = 0.0;
for (int y = -1; y <= 1; ++y) {
for (int x = -1; x <= 1; ++x) {
float smp = step(0.5, texture(tex0, v_texCoord0 + vec2(x,y) * stepSize).r);
if (smp != ref && ref == 1.0) {
contour = 1.0;
}
}
}
float laplacian = -4 * ref;
laplacian += step(0.5, texture(tex0, v_texCoord0 + vec2(stepSize.x, 0.0)).r);
laplacian += step(0.5, texture(tex0, v_texCoord0 - vec2(stepSize.x, 0.0)).r);
laplacian += step(0.5, texture(tex0, v_texCoord0 + vec2(0.0, stepSize.y)).r);
laplacian += step(0.5, texture(tex0, v_texCoord0 - vec2(0.0, stepSize.y)).r);
float contour = 1.0 - step(0.0, laplacian);
o_color = vec4(contour, contour, contour, 1.0);
}

16
orx-jumpflood/src/main/resources/shaders/gl3/pixel-direction.frag Normal file
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@@ -0,0 +1,16 @@
#version 330 core
uniform sampler2D tex0;
uniform sampler2D tex1;
in vec2 v_texCoord0;
out vec4 o_color;
void main() {
vec2 size = textureSize(tex0, 0);
vec2 pixelPosition = v_texCoord0;
vec2 centroidPixelPosition = texture(tex0, v_texCoord0).xy;
vec2 pixelDistance = (centroidPixelPosition - pixelPosition) * size * vec2(1.0, -1.0);
float threshold = texture(tex1, v_texCoord0).r;
o_color = vec4(pixelDistance, threshold, 1.0);
}

30
orx-jumpflood/src/main/resources/shaders/gl3/pixel-distance.frag
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@@ -1,16 +1,16 @@
#version 330 core
uniform sampler2D tex0;
uniform sampler2D tex1;
in vec2 v_texCoord0;
out vec4 o_color;
void main() {
vec2 size = textureSize(tex0, 0);
vec2 pixelPosition = v_texCoord0;
vec2 centroidPixelPosition = texture(tex0, v_texCoord0).xy;
vec2 pixelDistance = (centroidPixelPosition - pixelPosition) * size * vec2(1.0, -1.0);
float threshold = texture(tex1, v_texCoord0).r;
o_color = vec4(pixelDistance, threshold, 1.0);
#version 330 core
uniform sampler2D tex0;
uniform sampler2D tex1;
in vec2 v_texCoord0;
out vec4 o_color;
void main() {
vec2 size = textureSize(tex0, 0);
vec2 pixelPosition = v_texCoord0;
vec2 centroidPixelPosition = texture(tex0, v_texCoord0).xy;
vec2 pixelDistance = (centroidPixelPosition - pixelPosition) * size * vec2(1.0, -1.0);
float threshold = texture(tex1, v_texCoord0).r;
o_color = vec4(length(pixelDistance), threshold, 0.0, 1.0);
}