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Updated shader examples

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This commit is contained in:
codeanticode
2013-02-06 17:11:17 -05:00
parent a21a4fbe21
commit 121cba45a9
15 changed files with 178 additions and 156 deletions
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java/examples/Topics/Shaders/SepBlur/data/blur.glsl
+8 -6
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@@ -6,13 +6,15 @@ precision mediump float;
precision mediump int;
#endif
uniform sampler2D textureSampler;
#define PROCESSING_TEXTURE_SHADER
uniform sampler2D texture;
// The inverse of the texture dimensions along X and Y
uniform vec2 texcoordOffset;
uniform vec2 texOffset;
varying vec4 vertColor;
varying vec4 vertTexcoord;
varying vec4 vertTexCoord;
uniform int blurSize;
uniform int horizontalPass; // 0 or 1 to indicate vertical or horizontal pass
@@ -39,15 +41,15 @@ void main() {
float coefficientSum = 0.0;
// Take the central sample first...
avgValue += texture2D(textureSampler, vertTexcoord.st) * incrementalGaussian.x;
avgValue += texture2D(texture, vertTexCoord.st) * incrementalGaussian.x;
coefficientSum += incrementalGaussian.x;
incrementalGaussian.xy *= incrementalGaussian.yz;
// Go through the remaining 8 vertical samples (4 on each side of the center)
for (float i = 1.0; i <= numBlurPixelsPerSide; i++) {
avgValue += texture2D(textureSampler, vertTexcoord.st - i * texcoordOffset *
avgValue += texture2D(texture, vertTexCoord.st - i * texOffset *
blurMultiplyVec) * incrementalGaussian.x;
avgValue += texture2D(textureSampler, vertTexcoord.st + i * texcoordOffset *
avgValue += texture2D(texture, vertTexCoord.st + i * texOffset *
blurMultiplyVec) * incrementalGaussian.x;
coefficientSum += 2.0 * incrementalGaussian.x;
incrementalGaussian.xy *= incrementalGaussian.yz;