From f0606763303231b1aef9ba4fe667a5459a370e6e Mon Sep 17 00:00:00 2001
From: parker <parker.g.britt@gmail.com>
Date: Thu, 26 Jun 2025 00:53:22 +0100
Subject: [PATCH] fix: assign vertex shader, unbind vao

---
 src/gui/viewport/OpenGLWidget.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/gui/viewport/OpenGLWidget.h b/src/gui/viewport/OpenGLWidget.h
index 2c6928b..a164897 100644
--- a/src/gui/viewport/OpenGLWidget.h
+++ b/src/gui/viewport/OpenGLWidget.h
@@ -43,9 +43,8 @@ protected:
         "{\n"
         "   gl_Position = vec4(aPos.x, aPos.y, aPos.z, 1.0);\n"
         "}\n";
-        GLuint vertexShader;
         // shader type
-        glCreateShader(GL_VERTEX_SHADER);
+        GLuint vertexShader = glCreateShader(GL_VERTEX_SHADER);
         // convert source
         const GLchar* vertexShaderSourceC = vertexShaderSource.c_str();
         // create shader object
@@ -81,6 +80,9 @@ protected:
         glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 3*sizeof(GLfloat), (void*)0);
         glEnableVertexAttribArray(0);
 
+        // unbind vertex array
+        glBindVertexArray(0);
+
         QSurfaceFormat fmt = context()->format();
         std::cout << "format: " << (fmt.renderableType() == QSurfaceFormat::OpenGLES ? "GLES" : "Desktop") << "\n";
         std::cout << "format: " << (fmt.renderableType() == QSurfaceFormat::OpenGL ? "true" : "false") << "\n";