textures and whatnot i forgot to commit for a while lol

mdl/dji600.mtl

@@ -1,4 +1,4 @@
-# Blender MTL File: 'untitled.blend'
+# Blender MTL File: 'dji600.blend'
 # Material Count: 1
 
 newmtl Material
@@ -10,4 +10,4 @@ Ke 0.000000 0.000000 0.000000
 Ni 1.450000
 d 1.000000
 illum 2
-map_Kd /tmp/dji600_top.jpg
+map_Kd dji600.jpg

mdl/dji600.obj

@@ -1,7 +1,7 @@
-# Blender v2.90.1 OBJ File: 'untitled.blend'
+# Blender v2.90.1 OBJ File: 'dji600.blend'
 # www.blender.org
 mtllib dji600.mtl
-o Cylinder
+o dji600_Cylinder
 v -0.066940 0.000000 -0.115943
 v 0.066940 0.000000 -0.115943
 v 0.066940 0.000000 0.115943

resources.qrc

@@ -3,5 +3,10 @@
   <qresource>
     <file>mdl/dji600.obj</file>
     <file>mdl/dji600.mtl</file>
+    <file>mdl/dji600.jpg</file>
+    <file>mdl/test.obj</file>
+    <file>mdl/test.mtl</file>
+    <file>mdl/black.jpg</file>
+    <file>mdl/ground.jpg</file>
   </qresource>
 </RCC>

src/drone_controller.cc

@@ -62,16 +62,23 @@ Drone::Drone() {
 					tinyobj::real_t vx = attrib.vertices[3*idx.vertex_index+0];
 					tinyobj::real_t vy = attrib.vertices[3*idx.vertex_index+1];
 					tinyobj::real_t vz = attrib.vertices[3*idx.vertex_index+2];
+					tinyobj::real_t ts = attrib.texcoords[2*idx.texcoord_index+0];
+					tinyobj::real_t tt = attrib.texcoords[2*idx.texcoord_index+1];
 					verts.append(vx);
 					verts.append(vy);
 					verts.append(vz);
+					verts.append(ts);
+					verts.append(tt);
+					// qDebug() << "vert" << vx << vy << vz << "tex" << ts << tt;
 				}
 				index_offset += fv;
 			}
 		}
 
-		mesh = new OpenGLMesh(verts);
-		// mesh = new OpenGLMesh(QVector<float>(attrib.vertices.begin(), attrib.vertices.end()));
+		QOpenGLTexture *texture = new QOpenGLTexture(QImage(":/mdl/dji600.jpg").mirrored());
+		// texture->setMinificationFilter(QOpenGLTexture::LinearMipMapLinear);
+		// texture->setMagnificationFilter(QOpenGLTexture::Linear);
+		mesh = new OpenGLMesh(verts, texture);
 		mesh_initialized = true;
 	}
 	OpenGLWidget::instance->meshes.append(*mesh);
@@ -133,6 +140,18 @@ DroneController::DroneController(const QJsonObject &json)
 		}
 	}
 
+	OpenGLWidget::instance->makeCurrent();
+	QOpenGLTexture *ground_tex = new QOpenGLTexture(QImage(":/mdl/ground.jpg").mirrored());
+	OpenGLMesh *ground = new OpenGLMesh({
+			-100, 0, -100, 0, 0,
+			100, 0, -100, 1, 0,
+			-100, 0, 100, 0, 1,
+			100, 0, -100, 1, 0,
+			-100, 0, 100, 0, 1,
+			100, 0, 100, 1, 1,
+		}, ground_tex);
+	OpenGLWidget::instance->meshes.append(*ground);
+	OpenGLWidget::instance->doneCurrent();
 	connect(&timer, &QTimer::timeout, this, &DroneController::step);
 }
 

src/opengl_mesh.cc

@@ -1,19 +1,24 @@
 #include "opengl_mesh.hh"
-
 #include "opengl_widget.hh"
 
+#include <QOpenGLFunctions>
 
-OpenGLMesh::OpenGLMesh(QVector<float> verts) {
+
+OpenGLMesh::OpenGLMesh(QVector<float> verts, QOpenGLTexture *tex)
+	:tex(tex) {
 	OpenGLWidget::instance->makeCurrent();
 	QOpenGLFunctions_4_4_Core *glf = OpenGLWidget::instance;
-	nverts = verts.size() / 3;
+	nverts = verts.size() / 5;
 	glf->glGenVertexArrays(1, &vao);
 	glf->glGenBuffers(1, &vbo);
 	glf->glBindVertexArray(vao);
 	glf->glBindBuffer(GL_ARRAY_BUFFER, vbo);
-	glf->glBufferData(GL_ARRAY_BUFFER, nverts * 3 * sizeof (GLfloat), verts.data(), GL_STATIC_DRAW);
-	glf->glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, 0);
+	glf->glBufferData(GL_ARRAY_BUFFER, nverts * 5 * sizeof (float), verts.data(), GL_STATIC_DRAW);
+	glf->glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 5 * sizeof (float), 0);
 	glf->glEnableVertexAttribArray(0);
+	glf->glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 5 * sizeof (float), (void *) (3 * sizeof (float)));
+	glf->glEnableVertexAttribArray(1);
+	tex->bind();
 	glf->glBindVertexArray(0);
 	OpenGLWidget::instance->doneCurrent();
 }

src/opengl_mesh.hh

@@ -3,15 +3,16 @@
 
 #include <QMatrix4x4>
 #include <QVector>
-#include <QOpenGLFunctions>
+#include <QOpenGLTexture>
 
 
 struct OpenGLMesh {
 	GLuint vao, vbo;
 	unsigned nverts;
 	QMatrix4x4 mat;
+	QOpenGLTexture *tex;
 
-	OpenGLMesh(QVector<float> verts);
+	OpenGLMesh(QVector<float> verts, QOpenGLTexture *tex);
 };
 
 

src/opengl_widget.cc

@@ -6,24 +6,31 @@
 static const GLchar *vertex_shader_source = R"glsl(
 #version 330 core
 
-layout(location = 0) in vec3 pos;
+layout(location = 0) in vec3 in_pos;
+layout(location = 1) in vec2 in_uv;
+
+out vec2 uv;
 
 uniform mat4 proj;
 uniform mat4 view;
 uniform mat4 model;
 
 void main() {
-	gl_Position = proj * view * model * vec4(pos, 1.0);
+	gl_Position = proj * view * model * vec4(in_pos, 1.0);
+	uv = in_uv;
 }
 )glsl";
 
 static const GLchar *fragment_shader_source = R"glsl(
 #version 330 core
 
+in vec2 uv;
 out vec4 final_col;
 
+uniform sampler2D tex;
+
 void main() {
-	final_col = vec4(0, 0, 0, 1);
+	final_col = texture(tex, uv);
 }
 )glsl";
 
@@ -91,7 +98,7 @@ void OpenGLWidget::initializeGL() {
 	GLuint shader_program = glCreateProgram();
 	glAttachShader(shader_program, vertex_shader);
 	glAttachShader(shader_program, fragment_shader);
-	glBindFragDataLocation(shader_program, 0, "out_color");
+	glBindFragDataLocation(shader_program, 0, "final_col");
 	glLinkProgram(shader_program);
 	glGetProgramiv(shader_program, GL_LINK_STATUS, &status);
 	if (status != GL_TRUE) {
@@ -119,6 +126,8 @@ void OpenGLWidget::initializeGL() {
 	trans.translate(0, 0, -5);
 	glUniformMatrix4fv(view_attr, 1, GL_FALSE, trans.data());
 
+	glUniform1i(glGetUniformLocation(shader_program, "tex"), 0);
+
 	glClearColor(1, 1, 1, 0);
 
 	glEnable(GL_DEPTH_TEST);
@@ -130,7 +139,7 @@ void OpenGLWidget::initializeGL() {
 
 void OpenGLWidget::resizeGL(int w, int h) {
 	QMatrix4x4 projection;
-	projection.perspective(FOV, (float) w/h, .1, 100);
+	projection.perspective(FOV, (float) w/h, .1, 1000);
 	glUniformMatrix4fv(proj_attr, 1, GL_FALSE, projection.data());
 }
 
@@ -141,9 +150,11 @@ void OpenGLWidget::paintGL() {
 	trans.translate(0, 0, -cam_dist);
 	QMatrix4x4 view = trans * rot;
 	glUniformMatrix4fv(view_attr, 1, GL_FALSE, view.data());
+	glActiveTexture(GL_TEXTURE0);
 	for (const OpenGLMesh &mesh : meshes) {
 		glUniformMatrix4fv(model_attr, 1, GL_FALSE, mesh.mat.data());
 		glBindVertexArray(mesh.vao);
+		mesh.tex->bind();
 		glDrawArrays(GL_TRIANGLES, 0, mesh.nverts);
 	}
 }