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feat(viewport): add depth testing and grid opacity

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This commit is contained in:
parker
2025-06-26 22:18:20 +01:00
parent 7aad0114f9
commit 09a8a40bfc
3 changed files with 85 additions and 4 deletions
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17
src/gui/viewport/ViewportGLWidget.cpp
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@@ -11,6 +11,10 @@ void ViewportGLWidget::initializeGL()
{
initializeOpenGLFunctions();
glEnable(GL_DEPTH_TEST);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
triangleMesh_ = std::make_unique<GLMesh>();
gridMesh_ = std::make_unique<GLGrid>();
@@ -102,9 +106,8 @@ void ViewportGLWidget::paintGL()
{
glClear(GL_COLOR_BUFFER_BIT);
glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
glUseProgram(shaderProgram);
glm::mat4 projMatrix = glm::perspective(
glm::radians(45.0f), // FOV
@@ -113,15 +116,21 @@ void ViewportGLWidget::paintGL()
100.0f // far plane
);
gridMesh_->useProgram();
glUniformMatrix4fv(glGetUniformLocation(shaderProgram, "uProj"), 1, GL_FALSE, glm::value_ptr(projMatrix));
curCamera.setUniform(glGetUniformLocation(shaderProgram, "uView"));
gridMesh_->draw();
glUseProgram(shaderProgram);
GLint projMLoc = glGetUniformLocation(shaderProgram, "uProj");
glUniformMatrix4fv(projMLoc, 1, GL_FALSE, glm::value_ptr(projMatrix));
GLint viewMLoc = glGetUniformLocation(shaderProgram, "uView");
curCamera.setUniform(viewMLoc);
gridMesh_->draw();
triangleMesh_->draw();
}