diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/plasma-node.c | 26 | ||||
| -rw-r--r-- | src/tex.c | 22 |
2 files changed, 42 insertions, 6 deletions
diff --git a/src/plasma-node.c b/src/plasma-node.c index 0ad8752..656aa56 100644 --- a/src/plasma-node.c +++ b/src/plasma-node.c @@ -26,18 +26,26 @@ static const char *plasma_vs = "" +#ifdef __EMSCRIPTEN__ "#version 100\n" + "varying vec2 UV;" +#else + "#version 120\n" +#endif + "uniform mat4 projection_x;" "attribute vec3 vertex;" "attribute vec2 texcoord;" - "varying vec2 UV;" - "void main()" "{" +#ifdef __EMSCRIPTEN__ " UV = texcoord;" +#else + " gl_TexCoord[0].xy = texcoord;" +#endif " gl_Position = projection_x * vec4(vertex, 1.0);" "}" ""; @@ -45,21 +53,31 @@ static const char *plasma_vs = "" // derived from https://www.bidouille.org/prog/plasma static const char *plasma_fs = "" +#ifdef __EMSCRIPTEN__ "#version 100\n" +#else + "#version 120\n" +#endif "#define PI 3.1415926535897932384626433832795\n" +#ifdef __EMSCRIPTEN__ "precision mediump float;" + "varying vec2 UV;" +#endif + "uniform float alpha;" "uniform float time;" - "varying vec2 UV;" - "void main() {" " float v;" " float stime = sin(time * .01) * 100.0;" +#ifdef __EMSCRIPTEN__ " vec2 c = UV;" +#else + " vec2 c = gl_TexCoord[0].st;" +#endif // this zooms the texture coords in and out a bit with time " c *= (sin(stime * .01) *.5 + .5) * 3.0 + 1.0;" @@ -51,7 +51,11 @@ static const float texcoords[] = { static const char *tex_vs = "" +#ifdef __EMSCRIPTEN__ "#version 100\n" +#else + "#version 120\n" +#endif "uniform mat4 model_x;" "uniform mat4 projection_x;" @@ -59,28 +63,42 @@ static const char *tex_vs = "" "attribute vec3 vertex;" "attribute vec2 texcoord;" +#ifdef __EMSCRIPTEN__ "varying vec2 UV;" +#endif "void main()" "{" +#ifdef __EMSCRIPTEN__ " UV = texcoord;" +#else + " gl_TexCoord[0].xy = texcoord;" +#endif " gl_Position = projection_x * model_x * vec4(vertex, 1.0);" "}" ""; static const char *tex_fs = "" +#ifdef __EMSCRIPTEN__ "#version 100\n" "precision mediump float;" + "varying vec2 UV;" +#else + "#version 120\n" +#endif + "uniform sampler2D tex0;" "uniform float alpha;" - "varying vec2 UV;" - "void main()" "{" +#ifdef __EMSCRIPTEN__ " gl_FragColor = texture2D(tex0, UV);" +#else + " gl_FragColor = texture2D(tex0, gl_TexCoord[0].st);" +#endif " gl_FragColor.a *= alpha;" "}" ""; |