Add GLSL shader node using PyOpenGL (#12148)

* adds support for executing simple glsl shaders using moderngl package * tidy * Support multiple outputs * Try fix build * fix casing * fix line endings * convert to using PyOpenGL and glfw * remove cpu support * tidy * add additional support for egl & osmesa backends * fix ci perf: only read required outputs * add diagnostics, update mac initialization * GLSL glueprints + node fixes (#12492) * Add image operation blueprints * Add channels * Add glow * brightness/contrast * hsb * add glsl shader update system * shader nit iteration * add multipass for faster blur * more fixes * rebuild blueprints * print -> logger * Add edge preserving blur * fix: move _initialized flag to end of GLContext.__init__ Prevents '_vao' attribute error when init fails partway through and subsequent calls skip initialization due to early _initialized flag. * update valid ranges - threshold 0-100 - step 0+ * fix value ranges * rebuild node to remove extra inputs * Fix gamma step * clamp saturation in colorize instead of wrapping * Fix crash on 1x1 px images * rework description * remove unnecessary f Co-authored-by: Jedrzej Kosinski <kosinkadink1@gmail.com> Co-authored-by: Hunter Senft-Grupp <hunter@comfy.org>
2026-02-20 04:22:13 +00:00
parent 5f2117528a
commit 96d6bd1a4a
29 changed files with 2155 additions and 0 deletions
@@ -0,0 +1,19 @@
+#version 300 es
+precision highp float;
+
+uniform sampler2D u_image0;
+
+in vec2 v_texCoord;
+layout(location = 0) out vec4 fragColor0;
+layout(location = 1) out vec4 fragColor1;
+layout(location = 2) out vec4 fragColor2;
+layout(location = 3) out vec4 fragColor3;
+
+void main() {
+  vec4 color = texture(u_image0, v_texCoord);
+  // Output each channel as grayscale to separate render targets
+  fragColor0 = vec4(vec3(color.r), 1.0);  // Red channel
+  fragColor1 = vec4(vec3(color.g), 1.0);  // Green channel
+  fragColor2 = vec4(vec3(color.b), 1.0);  // Blue channel
+  fragColor3 = vec4(vec3(color.a), 1.0);  // Alpha channel
+}