eessppeelllloo/processing4
1
0
Fork 0
mirror of https://github.com/processing/processing4.git synced 2026-06-16 04:26:26 +02:00
Code Issues Packages Projects Releases Wiki Activity

Updated shader examples

Browse Source
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
Download Patch File Download Diff File Expand all files Collapse all files
java/examples/Topics/Shaders/FishEye/data/FishEye.glsl
+8 -6
View File
@@ -10,11 +10,13 @@ precision mediump float;
precision mediump int;
#endif
uniform sampler2D textureSampler;
uniform mat4 texcoordMatrix;
#define PROCESSING_TEXTURE_SHADER
uniform sampler2D texture;
uniform mat4 texMatrix;
varying vec4 vertColor;
varying vec4 vertTexcoord;
varying vec4 vertTexCoord;
uniform float aperture;
@@ -31,8 +33,8 @@ void main(void) {
// The st factor takes into account the situation when non-pot
// textures are not supported, so that the maximum texture
// coordinate to cover the entire image might not be 1.
vec2 stFactor = vec2(1.0 / abs(texcoordMatrix[0][0]), 1.0 / abs(texcoordMatrix[1][1]));
vec2 pos = (2.0 * vertTexcoord.st * stFactor - 1.0);
vec2 stFactor = vec2(1.0 / abs(texMatrix[0][0]), 1.0 / abs(texMatrix[1][1]));
vec2 pos = (2.0 * vertTexCoord.st * stFactor - 1.0);
float l = length(pos);
if (l > 1.0) {
@@ -52,6 +54,6 @@ void main(void) {
float u = r * cos(phi) + 0.5;
float v = r * sin(phi) + 0.5;
gl_FragColor = texture2D(textureSampler, vec2(u, v) / stFactor) * vertColor;
gl_FragColor = texture2D(texture, vec2(u, v) / stFactor) * vertColor;
}
}