diff options
Diffstat (limited to 'src/plasma-node.c')
| -rw-r--r-- | src/plasma-node.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/src/plasma-node.c b/src/plasma-node.c index 656aa56..0d276ba 100644 --- a/src/plasma-node.c +++ b/src/plasma-node.c @@ -68,6 +68,7 @@ static const char *plasma_fs = "" "uniform float alpha;" "uniform float time;" + "uniform float gloom;" "void main() {" " float v;" @@ -92,29 +93,32 @@ static const char *plasma_fs = "" " v += sin(sqrt(c.x * c.x + c.y * c.y + 1.0) + stime);" " vec3 col = vec3(cos(PI * v + sin(time)), sin(PI * v + cos(time * .33)), cos(PI * v + sin(time * .66)));" - " gl_FragColor = vec4(col * .5 + .5, alpha);" + " gl_FragColor = vec4((col * .5 + .5) * (1.f - gloom), alpha);" "}" ""; static void plasma_uniforms(void *uniforms_ctxt, void *render_ctxt, unsigned n_uniforms, const int *uniforms, const m4f_t *model_x, float alpha) { + float *gloom = uniforms_ctxt; play_t *play = render_ctxt; glUniform1f(uniforms[0], alpha); glUniform1f(uniforms[1], play_ticks(play, PLAY_TICKS_TIMER0) * .001f); // FIXME KLUDGE ALERT glUniformMatrix4fv(uniforms[2], 1, GL_FALSE, &model_x->m[0][0]); + glUniform1f(uniforms[3], *gloom); } /* create plasma rendering stage */ -stage_t * plasma_node_new(const stage_conf_t *conf, m4f_t *projection_x) +stage_t * plasma_node_new(const stage_conf_t *conf, m4f_t *projection_x, float *gloom) { - return shader_node_new_src(conf, plasma_vs, plasma_fs, projection_x, plasma_uniforms, NULL, 3, + return shader_node_new_src(conf, plasma_vs, plasma_fs, projection_x, plasma_uniforms, gloom, 4, (const char *[]){ "alpha", "time", "projection_x", + "gloom", } ); } |