textured fishe!!!!1!

fish_painter.cpp

@@ -1,13 +1,14 @@
 #include "fish_painter.h"
 
+#include "OBJ_Loader.h"
 #include <QtMath>
+#include <locale>
+#include <QImage>
 
 
-const GLfloat vertices[] = {
-	1, 0, 0,
-	-1, .5, 0,
-	-1, -.5, 0,
-};
+FishPainter::~FishPainter() {
+	if (texture) delete texture;
+}
 
 
 void FishPainter::create(QOpenGLExtraFunctions *glf) {
@@ -25,15 +26,31 @@ void FishPainter::create(QOpenGLExtraFunctions *glf) {
 		qCritical() << program.log();
 	}
 
+	texture = new QOpenGLTexture(QImage(":/textures/fish.jpg").mirrored());
+
 	vao.create();
 
 	{QOpenGLVertexArrayObject::Binder bind(&vao);
 		vbo.create();
 		vbo.bind();
-		vbo.allocate(vertices, 9 * sizeof (GLfloat));
+		std::locale old_locale = std::locale::global(std::locale::classic()); // lmao posix sucks so much
+		objl::Loader loader;
+		if (!loader.LoadFile(":/meshes/fish.obj")) {
+			qCritical() << "Unable to load fish mesh.";
+		}
+		std::locale::global(old_locale);
+		std::vector<objl::Vertex> verts = loader.LoadedMeshes[0].Vertices;
+		n_verts = verts.size();
+		vbo.allocate(verts.data(), verts.size() * sizeof (objl::Vertex));
 		program.bind();
-		program.setAttributeBuffer("position", GL_FLOAT, 0, 3);
+		program.setAttributeBuffer("position", GL_FLOAT,
+								   offsetof(objl::Vertex, Position),
+								   3, sizeof (objl::Vertex));
+		program.setAttributeBuffer("uv", GL_FLOAT,
+								   offsetof(objl::Vertex, TextureCoordinate),
+								   2, sizeof (objl::Vertex));
 		program.enableAttributeArray("position");
+		program.enableAttributeArray("uv");
 	}
 }
 
@@ -46,6 +63,7 @@ void FishPainter::paint(QOpenGLExtraFunctions *glf,
 	{QOpenGLVertexArrayObject::Binder bind(&vao);
 		program.setUniformValue("projection", projection);
 		program.setUniformValue("view", view);
+		texture->bind();
 		QMatrix4x4 model;
 		for (const Fish &fish : fishes) {
 			model.setToIdentity();
@@ -59,7 +77,7 @@ void FishPainter::paint(QOpenGLExtraFunctions *glf,
 				}
 			}
 			program.setUniformValue("model", model);
-			glf->glDrawArrays(GL_TRIANGLES, 0, 3);
+			glf->glDrawArrays(GL_TRIANGLES, 0, n_verts);
 		}
 	}
 }

fish_painter.h

@@ -8,14 +8,18 @@
 #include <QOpenGLShaderProgram>
 #include <QOpenGLExtraFunctions>
 #include <QMatrix4x4>
+#include <QOpenGLTexture>
 
 
 class FishPainter {
 	QOpenGLVertexArrayObject vao;
 	QOpenGLBuffer vbo;
 	QOpenGLShaderProgram program;
+	QOpenGLTexture *texture = nullptr;
+	size_t n_verts;
 
   public:
+	~FishPainter();
 	void create(QOpenGLExtraFunctions *glf);
 	void paint(QOpenGLExtraFunctions *glf,
 			   const QMatrix4x4 &projection,

shaders/fish.frag

@@ -1,3 +1,6 @@
+varying vec2 fragment_uv;
+uniform sampler2D texture;
+
 void main() {
-	gl_FragColor = vec4(1, 0, .3, 1);
+	gl_FragColor = texture2D(texture, fragment_uv);
 }

shaders/fish.vert

@@ -1,9 +1,13 @@
 attribute vec3 position;
+attribute vec2 uv;
+
+varying vec2 fragment_uv;
 
 uniform mat4 projection;
 uniform mat4 view;
 uniform mat4 model;
 
 void main() {
+	fragment_uv = uv;
 	gl_Position = projection * view * model * vec4(position, 1);
 }