Question #$1(25$ points$)$: Cube Texture

Here are the requirements for the program:

Find a suitable cube texture file set and copy it to the media folder. Add code to load the cube texture. Use whatever texture unit you wish, but be sure to use it with the artifacts you will create.

The first artifact should be a skybox.

Use a block shape.

Suitably scale and position the artifact.

Set the texture unit appropriately.

Set the surface effect to use the skybox case in the fragment shader.

The second artifact should be a reflection box.

Use a block shape.

Scale the artifact by $1,6,$ and $1$

Center the artifact at $-\mathrm{.}5,0,3$

Set the texture unit appropriately.

Configure rotation animation

The rotation axis should be $(0,1,1)$

The rotation center should be the center of the artifact.

The rotation rate should be $15$ rpm $($rotations per minute$).$

Set the surface effect to use the reflection case in the fragment shader.

Code:

#include

$//$ #include

#include

#include "learnopengl$/$shader$\_4722.$h$"$

#include $"$cs$4722/$view$.$h$"$

#include $"$cs$4722/$artifact$.$h$"$

#include $"$cs$4722/$texture$\_$utilities.h$"$

#include $"$cs$4722/$window$.$h$"$

#include $"$cs$4722/$buffer$\_$utilities.h$"$

#include $"../$callbacks$.$h$"$

static cs$4722$::View $*$the$\_$view;

static Shader $*$shader;

static std::vector artifact$\_$list;

void init$()$

$\{$

$$ the$\_$view $=$ new cs$4722$::View$()$;

$$ the$\_$view$->$enableLogging $=$ false;

$$ the$\_$view$->$setFLUP$($glm::vec$3(-0\mathrm{.}334169,-0\mathrm{.}0699426,0\mathrm{.}939918),$

$$ glm::vec$3(0\mathrm{.}942223,0,0\mathrm{.}334989),$

$$ glm::vec$3(-0\mathrm{.}0234302,0\mathrm{.}997553,0\mathrm{.}0659021),$

$$ glm::vec$3(-0\mathrm{.}146291,0\mathrm{.}195185,1\mathrm{.}3214))$;

$$shader $=$ new Shader$("$vertex$\_$shader$01.$glsl$",$"fragment$\_$shader$01.$glsl$")$;

$$ shader$->$use$()$;

$$ glEnable$($GL$\_$DEPTH$\_$TEST$)$;

$//$ load in a cube texture hee

$//$ two artifacts go here

$$ cs$4722$::initBuffers$($shader$->$ID$,$ artifact$\_$list, $"$b$\_$position", $"",$

$"$b$\_$texture$\_$coord", $"$b$\_$normal"$)$;

$\}$

void render$()$

$\{$

$$ auto view$\_$transform $=$ glm::lookAt$($the$\_$view$->$cameraPosition,

$$ the$\_$view$->$cameraPosition $+$ the$\_$view$->$cameraForward,

$$ the$\_$view$->$cameraUp$)$;

$$ auto projection$\_$transform $=$ glm::infinitePerspective$($the$\_$view$->$perspectiveFOVY,

$$the$\_$view$->$perspectiveAspect, the$\_$view$->$perspectiveNear$)$;

$$ auto vp$\_$transform $=$ projection$\_$transform $*$ view$\_$transform;

$$ shader$->$setMat$4("$u$\_$vp$\_$transform", vp$\_$transform$)$;

$$ shader$->$setVec$3("$u$\_$camera$\_$position", the$\_$view$->$cameraPosition$)$;

$$ static auto last$\_$time $=0\mathrm{.}0$;

$$ auto time $=$ glfwGetTime$()$;

$$ auto delta$\_$time $=$ time $-$ last$\_$time;

$$ last$\_$time $=$ time;

$$ for $($auto artf : artifact$\_$list$)\{$

$$ artf$->$worldTransformation$->$animationStep$()$;

$$ glm::mat$4$ model$\_$transform $=$ artf$->$worldTransformation$->$getMatrix$()$;

$$ glm::mat$4$ n$\_$transform $=$ glm::inverseTranspose$($model$\_$transform$)$;

$$ shader$->$setMat$4("$u$\_$m$\_$transform", model$\_$transform$)$;

$$ shader$->$setMat$4("$u$\_$n$\_$transform", n$\_$transform$)$;

$$ shader$->$setInt$("$u$\_$sampler$2",$ artf$->$textureUnit$)$;

$$ shader$->$setInt$("$u$\_$samplerC", artf$->$textureUnit$)$;

$$ shader$->$setInt$("$u$\_$surface$\_$effect", artf$->$surfaceEffect$)$;

$$ glDrawArrays$($GL$\_$TRIANGLES, artf$->$theShape$->$bufferStart, artf$->$theShape$->$bufferSize$)$;

$\}$

$\}$

int

main$($int argc, char$**$ argv$)$

$\{$

$$ glfwInit$()$;

$$ cs$4722$::setOpenglVersion$(3,3)$;

$$ GLFWwindow $*$window $=$ cs$4722$::setupWindow$("$Reflecting Object", $\mathrm{.}5,16\mathrm{.}0/9\mathrm{.}0)$;

$$ gladLoadGL$($glfwGetProcAddress$)$;

$$ init$()$;

$$ the$\_$view$->$perspectiveAspect $=$ cs$4722$::getAspectRatio$($window$)$;

$$ glfwSetWindowUserPointer$($window$,$ the$\_$view$)$;

$$ printf$("$view logging $\%$d

$",$ the$\_$view$->$enableLogging$)$;

$$ glfwSetKeyCallback$($window$,$ general$\_$key$\_$callback$)$;

$$ glfwSetCursorPosCallback$($window$,$ move$\_$callback$)$;

$$ glfwSetWindowSizeCallback$($window$,$ window$\_$size$\_$callback$)$;

$$

$$ while $(!$glfwWindowShouldClose$($window$))$

$\{$

$$ glClearBufferfv$($GL$\_$COLOR, $0,$ cs$4722$::X$11$::gray$50.$asFloatArray$())$;

$$ glClear$($GL$\_$DEPTH$\_$BUFFER$\_$BIT$)$;

$$ render$()$;

$$ glfwSwapBuffers$($window$)$;

$$ glfwPollEvents$()$;

$\}$

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