Fix VAO, VBO setup, compute shader coupling

1 files changed, 44 insertions, 0 deletions

diff --git a/src/particle_vertex_buffer.h b/src/particle_vertex_buffer.h
new file mode 100644
index 0000000..58daf38
--- /dev/null
+++ b/src/particle_vertex_buffer.h
@@ -0,0 +1,44 @@
+#pragma once
+
+#include <vector>
+
+class ParticleVertexBuffer {
+private:
+	std::vector<GLfloat> _data;
+
+	GLuint _array;
+	GLuint _buffer;
+
+public:
+	ParticleVertexBuffer(std::vector<GLfloat>&& data):
+		_data{ std::move(data) } {
+		glGenVertexArrays(1, &_array);
+		glGenBuffers(1, &_buffer);
+
+		glBindVertexArray(_array);
+		glBindBuffer(GL_ARRAY_BUFFER, _buffer);
+		glBufferData(
+			GL_ARRAY_BUFFER,
+			_data.size() * sizeof(GLfloat),
+			_data.data(),
+			GL_STATIC_DRAW
+		);
+
+		glEnableVertexAttribArray(0);
+		glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, nullptr);
+	}
+
+	~ParticleVertexBuffer() {
+		glDeleteBuffers(1, &_buffer);
+		glDeleteVertexArrays(1, &_buffer);
+	}
+
+	void draw() {
+		glBindVertexArray(_array);
+		glDrawArrays(GL_POINTS, 0, 3*_data.size());
+	}
+
+	GLuint getBuffer() const {
+		return _buffer;
+	}
+};