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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/ImageMask/ImageMask.pde
+1 -1
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@@ -14,7 +14,7 @@ void setup() {
maskImage = createGraphics(srcImage.width, srcImage.height, P2D);
maskImage.noSmooth();
maskShader = loadShader("mask.glsl");
maskShader.set("maskSampler", maskImage);
maskShader.set("mask", maskImage);
background(255);
}
java/examples/Topics/Shaders/ImageMask/data/mask.glsl
+8 -6
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@@ -3,15 +3,17 @@ precision mediump float;
precision mediump int;
#endif
uniform sampler2D textureSampler;
uniform sampler2D maskSampler;
#define PROCESSING_TEXTURE_SHADER
uniform vec2 texcoordOffset;
uniform sampler2D texture;
uniform sampler2D mask;
uniform vec2 texOffset;
varying vec4 vertColor;
varying vec4 vertTexcoord;
varying vec4 vertTexCoord;
void main() {
vec4 texColor = texture2D(textureSampler, vertTexcoord.st).rgba;
vec4 maskColor = texture2D(maskSampler, vec2(vertTexcoord.s, 1.0 - vertTexcoord.t)).rgba;
vec4 texColor = texture2D(texture, vertTexCoord.st).rgba;
vec4 maskColor = texture2D(mask, vec2(vertTexCoord.s, 1.0 - vertTexCoord.t)).rgba;
gl_FragColor = mix(texColor, vec4(0, 0, 0, 0), 1.0 - maskColor.r);
}