void Game::DisplayFrameRate()
{
CShaderProgram *fontProgram = (*m_pShaderPrograms)[1];
RECT dimensions = m_gameWindow.GetDimensions();
int height = dimensions.bottom - dimensions.top;
// Increase the elapsed time and frame counter
m_elapsedTime += m_dt;
m_frameCount++;
// Now we want to subtract the current time by the last time that was stored
// to see if the time elapsed has been over a second, which means we found our FPS.
if (m_elapsedTime > 1000)
{
m_elapsedTime = 0;
m_framesPerSecond = m_frameCount;
// Reset the frames per second
m_frameCount = 0;
}
if (m_framesPerSecond > 0) {
// Use the font shader program and render the text
fontProgram->UseProgram();
glDisable(GL_DEPTH_TEST);
fontProgram->SetUniform("matrices.modelViewMatrix", glm::mat4(1));
fontProgram->SetUniform("matrices.projMatrix", m_pCamera->GetOrthographicProjectionMatrix());
fontProgram->SetUniform("vColour", glm::vec4(1.0f, 1.0f, 1.0f, 1.0f));
m_pFtFont->Render(20, height - 20, 20, "FPS: %d", m_framesPerSecond);
}
}
void LoadShaders()
{
// Load shaders and create shader programs
shShaders[0].LoadShader("data\\shaders\\tut09\\shader.vert", GL_VERTEX_SHADER);
shShaders[1].LoadShader("data\\shaders\\tut09\\shader.frag", GL_FRAGMENT_SHADER);
shShaders[2].LoadShader("data\\shaders\\common\\directionalLight.frag", GL_FRAGMENT_SHADER);
shShaders[3].LoadShader("data\\shaders\\tut09\\ortho2D.vert", GL_VERTEX_SHADER);
shShaders[4].LoadShader("data\\shaders\\tut09\\ortho2D.frag", GL_FRAGMENT_SHADER);
shShaders[5].LoadShader("data\\shaders\\tut09\\font2D.frag", GL_FRAGMENT_SHADER);
spDirectionalLight.CreateProgram();
spDirectionalLight.AddShaderToProgram(&shShaders[0]);
spDirectionalLight.AddShaderToProgram(&shShaders[1]);
spDirectionalLight.AddShaderToProgram(&shShaders[2]);
spDirectionalLight.LinkProgram();
spOrtho2D.CreateProgram();
spOrtho2D.AddShaderToProgram(&shShaders[3]);
spOrtho2D.AddShaderToProgram(&shShaders[4]);
spOrtho2D.LinkProgram();
spFont2D.CreateProgram();
spFont2D.AddShaderToProgram(&shShaders[3]);
spFont2D.AddShaderToProgram(&shShaders[5]);
spFont2D.LinkProgram();
}
void MainLoop(CPlatform * const pPlatform)
{
static float degrees[] = {0,0};
CMatrix44 rot;
Transform transform(10);
//update the main application
pPlatform->Tick();
WRender::ClearScreenBuffer(COLOR_BIT | DEPTH_BIT); //not really needed
transform.Push();
program.SetMtx44(mt,transform.GetCurrentMatrix().data);
WRender::Draw(WRender::TRIANGLE_STRIP, WRender::U_BYTE, sizeof(indices)/sizeof(unsigned char), 0);
transform.Translate(0.2f,0.0,0.0);
program.SetMtx44(mt,transform.GetCurrentMatrix().data);
WRender::Draw(WRender::TRIANGLE_STRIP, WRender::U_BYTE, sizeof(indices)/sizeof(unsigned char), 0);
transform.Push();
transform.Translate(-0.4f,0.0,0.0);
rot.Identity();
rot.Rotate(degrees[0],0,0,1);
transform.ApplyTransform(rot);
program.SetMtx44(mt,transform.GetCurrentMatrix().data);
WRender::Draw(WRender::TRIANGLE_STRIP, WRender::U_BYTE, sizeof(indices)/sizeof(unsigned char), 0);
transform.Push();
transform.Translate(0.0,0.3f,0);
program.SetMtx44(mt,transform.GetCurrentMatrix().data);
WRender::Draw(WRender::TRIANGLE_STRIP, WRender::U_BYTE, sizeof(indices)/sizeof(unsigned char), 0);
transform.Pop();
transform.Pop();
transform.Push();
rot.Identity();
rot.Rotate(degrees[1],0,0,1);
transform.ApplyTransform(rot);
transform.Translate(0.0,-0.3f,0.0);
transform.ApplyTransform(rot);
program.SetMtx44(mt,transform.GetCurrentMatrix().data);
WRender::Draw(WRender::TRIANGLE_STRIP, WRender::U_BYTE, sizeof(indices)/sizeof(unsigned char), 0);
transform.Pop();
transform.Pop();
//swap buffers
pPlatform->UpdateBuffers();
degrees[0] -= 360.0f*pPlatform->GetDT();
degrees[1] += 180.0f*pPlatform->GetDT();
if(degrees[0] < 0.0f)
degrees[0] += 360.0f;
if(degrees[1] > 360.0f)
degrees[1] -= 360.0f;
}
void CSDLOpenGLWindow::ReleaseScene()
{
spTextured.DeleteProgram();
spColored.DeleteProgram();
shFragmentTex.DeleteShader();
shFragmentCol.DeleteShader();
shVertexTex.DeleteShader();
shVertexCol.DeleteShader();
glDeleteVertexArrays(2, uiVAOs);
vboSceneObjects.DeleteVBO();
tBox.DeleteTexture();
tBlueIce.DeleteTexture();
}
// Releases OpenGL scene.
// lpParam - Pointer to anything you want.
void ReleaseScene(LPVOID lpParam)
{
spMain.DeleteProgram();
shVertex.DeleteShader();
shFragment.DeleteShader();
}
void DrawGeometry(bool shadowPass)
{
CMatrix44 rot;
rot.Rotate(45,1,0,0);
transform.Push();
if(shadowPass == false)
shadow_transform.Push();
transforms.mvp = transforms.proj * transform.GetCurrentMatrix();
WRender::UpdateBuffer(WRender::UNIFORM, WRender::DYNAMIC, ubo, sizeof(Transforms), (void*)&transforms, 0);
if(shadowPass == false)
program.SetMtx44(uShadowMtx, shadow_transform.GetCurrentMatrix().data);
//Plane
WRender::BindVertexArrayObject(vaoPlane);
WRender::DrawArray(WRender::TRIANGLES, 4*3, 0);
transform.Pop();
if(shadowPass == false)
shadow_transform.Pop();
transform.Push();
if(shadowPass == false)
shadow_transform.Push();
transform.ApplyTransform(rot);
transform.Translate(0, 5.0f, 0);
if(shadowPass == false)
{
shadow_transform.ApplyTransform(rot);
shadow_transform.Translate(0, 5.0f, 0);
}
transforms.mvp = transforms.proj * transform.GetCurrentMatrix();
WRender::UpdateBuffer(WRender::UNIFORM, WRender::DYNAMIC, ubo, sizeof(Transforms), (void*)&transforms, 0);
if(shadowPass == false)
program.SetMtx44(uShadowMtx, shadow_transform.GetCurrentMatrix().data);
//Torus
WRender::BindVertexArrayObject(vaoTorus);
WRender::DrawArray(WRender::TRIANGLES, nTorusVertices, 0);
transform.Pop();
if(shadowPass == false)
shadow_transform.Pop();
}
SharePtr<CMaterial> CComponentGraphic_GL::CreateMaterial(const TString &textureFileName)
{
SharePtr<CMaterial> material = new CMaterial(true);
material->GetRenderState()->SetBoolState(GL_DEPTH_TEST, true);
material->GetRenderState()->SetBoolState(GL_ALPHA_TEST, true);
material->GetRenderState()->SetAlphaFunc(GL_GREATER);
material->GetRenderState()->SetAlphaRef(0);
material->GetRenderState()->SetBoolState(GL_BLEND, true);
material->GetRenderState()->SetBlendFuncSrcFactor(GL_SRC_ALPHA);
material->GetRenderState()->SetBlendFuncTargetFactor(GL_ONE_MINUS_SRC_ALPHA);
SharePtr<CShader> pVS = CResourceManager::GetInstance()->GetResource<CShader>(_T("PointTexShader.vs"), false);
SharePtr<CShader> pPS = CResourceManager::GetInstance()->GetResource<CShader>(_T("PointTexShader.ps"), false);
BEATS_ASSERT(pVS && pPS, _T("Load Shader Failed!"));
CShaderProgram *program = CRenderManager::GetInstance()->GetShaderProgram(pVS->ID(), pPS->ID());
material->GetRenderState()->SetShaderProgram(program->ID());
SharePtr<CTexture> texture = CResourceManager::GetInstance()->GetResource<CTexture>(textureFileName, false);
BEATS_ASSERT(texture, _T("Create Component Texture Failed!"));
material->SetTexture(0, texture);
return material;
}
void CleanUp(void)
{
WRender::DeleteBuffer(ubo);
DestroyShape(sphere);
DestroyShape(cube);
DestroyShape(box);
WRender::DeleteTexture( cubemap_tex );
program_cube.CleanUp();
glswShutdown();
}
void Setup(CPlatform * const pPlatform)
{
CShader vertexShader(CShader::VERT, &pVertexShader, 1);
CShader fragmentShader(CShader::FRAG, &pFragmentShader, 1);
CShaderProgram program;
//setup the shaders
program.Initialise();
program.AddShader(&vertexShader);
program.AddShader(&fragmentShader);
program.Link();
glGenVertexArrays(1,&vao); //vertex array object
glGenBuffers(1, &ab); //array buffer
//fill buffers
glBindBuffer(GL_ARRAY_BUFFER, ab);
glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
//bind vao and ste it's data
glBindVertexArray(vao);
//glBindBuffer(GL_ARRAY_BUFFER, ab);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof(float)*6, BUFFER_OFFSET(0)); //P
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, sizeof(float)*6, BUFFER_OFFSET(sizeof(float)*3)); //C
glEnableVertexAttribArray(0);
glEnableVertexAttribArray(1);
//set rendering states
glEnable(GL_CULL_FACE);
glClearColor(0,0,0,0);
program.Start(); //even when glDeleteProgram is called the program won't be deleted untilit7s out of use
}
void Setup(CPlatform * const pPlatform)
{
CShader vertexShader(CShader::VERT, &pVertexShader, 1);
CShader fragmentShader(CShader::FRAG, &pFragmentShader, 1);
// - - - - - - - - - -
//setup the shaders
program.Initialise();
program.AddShader(&vertexShader);
program.AddShader(&fragmentShader);
program.Link();
mt = program.GetUniformLocation("mt");
// - - - - - - - - - -
// setup vertex buffers etc
vao = WRender::CreateVertexArrayObject();
eab = WRender::CreateBuffer(WRender::ELEMENTS, WRender::STATIC, sizeof(indices), indices);
ab = WRender::CreateBuffer(WRender::ARRAY, WRender::STATIC, sizeof(vertices), vertices);
WRender::BindVertexArrayObject(vao);
WRender::BindBuffer(WRender::ELEMENTS, eab);
WRender::VertexAttribute va[3] = {
{ab, 0, 3, WRender::FLOAT, 0, sizeof(float)*6, 0, 0},
{ab, 1, 3, WRender::FLOAT, 0, sizeof(float)*6, sizeof(float)*3, 0},
};
WRender::SetAttributeFormat( va, 2, 0);
program.Start();
}
void CSDLOpenGLWindow::ReleaseScene()
{
for (int i = 0; i < 4; i++)
tTextures[i].DeleteTexture();
spDirectionalLight.DeleteProgram();
shFragment.DeleteShader();
shVertex.DeleteShader();
glDeleteVertexArrays(1, uiVAOs);
vboSceneObjects.DeleteVBO();
}
void MainLoop(CPlatform * const pPlatform)
{
pPlatform->Tick();
if(pPlatform->GetKeyboard().keys[KB_SPACE].IsToggledPress())
{
if(++activeTexture >= MAX_TEXTURES)
activeTexture = 0;
WRender::BindTexture(tex[activeTexture]);
d_printf("Texture Index %d, id %d\n",activeTexture,tex[activeTexture].handle);
}
static float layer = 0.0f;
program.SetFloat( "layer", layer );
layer += 0.01f;
if (layer > 1.0){
layer -= 1.0f;
}
WRender::ClearScreenBuffer(COLOR_BIT | DEPTH_BIT); //not really needed
WRender::Draw(WRender::TRIANGLE_STRIP, WRender::U_BYTE, sizeof(indices)/sizeof(unsigned char), 0);
//swap buffers
pPlatform->UpdateBuffers();
}
void Setup(CPlatform * const pPlatform)
{
unsigned int got = 0;
const char *pVertStr[2] = {0,0}, *pFragStr[2] = {0,0};
float *pFrustumVertices = 0;
float colour[] = {1.0f,0.0f,0.0f, 0.0f,1.0f,0.0f, 0.0f,0.0f,1.0f};
int nFacets = 0;
glswInit();
glswSetPath( "../resources/", ".glsl" );
WRender::SetClearColour(0,0,0,0);
WRender::EnableCulling(true);
// - - - - - - - - - - - - - - - - - - - -
// - - - - - - - - - - - - - - - - - - - -
glswGetShadersAlt( "shaders.Shared+shaders.Skymap.Vertex", pVertStr, 2);
glswGetShadersAlt( "shaders.Shared+shaders.Skymap.Fragment", pFragStr, 2);
CShader vertexShader(CShader::VERT, pVertStr, 2);
CShader fragmentShader(CShader::FRAG, pFragStr, 2);
//setup the shaders
program_cube.Initialise();
program_cube.AddShader(&vertexShader);
program_cube.AddShader(&fragmentShader);
program_cube.Link();
program_cube.Start();
program_cube.SetTextureUnit("cube_map",0);
// - - - - - - - - - -
//set up shapes
box = CreateShapeCube();
sphere = CreateShapeSphereNormals();
//sphere = CreateShapeSphere();
//sphere = CreateShapeCylinder();
//sphere = CreateShapeCone();
//sphere = CreateShapeTorus();
// - - - - - - - - - -
// set up cubemap
CreateCubeMapTextures();
//ubo for cameras etc
ubo = WRender::CreateBuffer(WRender::UNIFORM, WRender::DYNAMIC, sizeof(Transforms), &transform);
WRender::BindBufferToIndex(WRender::UNIFORM, ubo, 1);
Transform::CreateProjectionMatrix(transforms.proj, -0.1f, 0.1f, -0.1f, 0.1f, 0.1f, 50.0f);
}
void CSDLOpenGLWindow::InitScene()
{
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
vboSceneObjects.CreateVBO();
glGenVertexArrays(1, uiVAOs); // Create one VAO
glBindVertexArray(uiVAOs[0]);
vboSceneObjects.BindVBO();
// Add cube to VBO
for (int i = 0; i < 36; i++)
{
vboSceneObjects.AddData(&vCubeVertices[i], sizeof(glm::vec3));
vboSceneObjects.AddData(&vCubeTexCoords[i % 6], sizeof(glm::vec2));
vboSceneObjects.AddData(&vCubeNormals[i / 6], sizeof(glm::vec3));
}
// Add ground to VBO
for (int i = 0; i < 6; i++)
{
vboSceneObjects.AddData(&vGround[i], sizeof(glm::vec3));
vCubeTexCoords[i] *= 10.0f;
vboSceneObjects.AddData(&vCubeTexCoords[i % 6], sizeof(glm::vec2));
glm::vec3 vGroundNormal(0.0f, 1.0f, 0.0f);
vboSceneObjects.AddData(&vGroundNormal, sizeof(glm::vec3));
}
// Add torus to VBO and remember number of faces (triangles) of this torus
iTorusFaces1 = GenerateTorus(vboSceneObjects, 7.0f, 2.0f, 20, 20);
// Add sun torus to VBO
iTorusFaces2 = GenerateTorus(vboSceneObjects, 10.0f, 6.0f, 10, 10);
vboSceneObjects.UploadDataToGPU(GL_STATIC_DRAW);
// Vertex positions
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 2 * sizeof(glm::vec3) + sizeof(glm::vec2), 0);
// Texture coordinates
glEnableVertexAttribArray(1);
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(glm::vec3) + sizeof(glm::vec2), (void*)sizeof(glm::vec3));
// Normal vectors
glEnableVertexAttribArray(2);
glVertexAttribPointer(2, 3, GL_FLOAT, GL_FALSE, 2 * sizeof(glm::vec3) + sizeof(glm::vec2), (void*)(sizeof(glm::vec3) + sizeof(glm::vec2)));
// Load shaders and create shader programs
shVertex.LoadShader("data\\shaders\\tut08\\shader.vert", GL_VERTEX_SHADER);
shFragment.LoadShader("data\\shaders\\tut08\\shader.frag", GL_FRAGMENT_SHADER);
shDirLight.LoadShader("data\\shaders\\common\\directionalLight.frag", GL_FRAGMENT_SHADER);
spDirectionalLight.CreateProgram();
spDirectionalLight.AddShaderToProgram(&shVertex);
spDirectionalLight.AddShaderToProgram(&shFragment);
spDirectionalLight.AddShaderToProgram(&shDirLight);
spDirectionalLight.LinkProgram();
// Load textures
std::string sTextureNames[] = { "ground.jpg", "box.jpg", "rust.jpg", "sun.jpg" };
for (int i = 0; i < 4; i++)
{
tTextures[i].LoadTexture2D("data\\textures\\" + sTextureNames[i], true);
tTextures[i].SetFiltering(TEXTURE_FILTER_MAG_BILINEAR, TEXTURE_FILTER_MIN_BILINEAR_MIPMAP);
}
glEnable(GL_DEPTH_TEST);
glClearDepth(1.0);
cCamera = CWalkingCamera(glm::vec3(0.0f, 3.0f, -20.0f), glm::vec3(0.0f, 3.0f, -19.0f), glm::vec3(0.0f, 1.0f, 0.0f), 35.0f);
}
void MainLoop(CPlatform * const pPlatform)
{ //update the main application
CVec3df cameraPosition( 0.0f, 0.0f, distance );
pPlatform->Tick();
WRender::ClearScreenBuffer(COLOR_BIT | DEPTH_BIT);
WRender::EnableDepthTest(true);
WRender::ActiveTexture(WRender::Texture::UNIT_0);
WRender::BindTexture(cubemap_tex);
transform.Push();
{
CMatrix44 rotLat,rotLong,inverse_camera, model_matrix;
rotLat.Rotate(latitude, 1, 0, 0);
rotLong.Rotate(longitude, 0, 1, 0);
transform.Translate(cameraPosition);
transform.ApplyTransform(rotLat);
transform.ApplyTransform(rotLong);
transform.Push();
{
transform.Scale(10.0f,10.0f,10.0f);
transforms.mv = transform.GetCurrentMatrix();
transforms.mvp = transforms.proj * transforms.mv;
CMatrix33 normal;
normal = transforms.mv;
normal = normal.Invert();
normal = normal.Transpose();
transforms.nrm[ 0] = normal.x.x; transforms.nrm[ 1] = normal.x.y; transforms.nrm[ 2] = normal.x.z;
transforms.nrm[ 4] = normal.y.x; transforms.nrm[ 5] = normal.y.y; transforms.nrm[ 6] = normal.y.z;
transforms.nrm[ 8] = normal.z.x; transforms.nrm[ 9] = normal.z.y; transforms.nrm[10] = normal.z.z;
WRender::UpdateBuffer(WRender::UNIFORM, WRender::DYNAMIC, ubo, sizeof(Transforms), (void*)&transforms, 0);
WRender::EnableCulling(true);
WRender::CullMode(WRender::FRONT_FACE);
program_cube.Start();
DrawShape(box);
}
transform.Pop();
transform.Push();
{
transform.Translate(0.0f, 0, 0);
transforms.mv = transform.GetCurrentMatrix();
transforms.mvp = transforms.proj * transforms.mv;
CMatrix33 normal;
normal = transforms.mv;
normal = normal.Invert();
normal = normal.Transpose();
transforms.nrm[ 0] = normal.x.x; transforms.nrm[ 1] = normal.x.y; transforms.nrm[ 2] = normal.x.z;
transforms.nrm[ 4] = normal.y.x; transforms.nrm[ 5] = normal.y.y; transforms.nrm[ 6] = normal.y.z;
transforms.nrm[ 8] = normal.z.x; transforms.nrm[ 9] = normal.z.y; transforms.nrm[10] = normal.z.z;
WRender::UpdateBuffer(WRender::UNIFORM, WRender::DYNAMIC, ubo, sizeof(Transforms), (void*)&transforms, 0);
WRender::EnableCulling(true);
WRender::CullMode(WRender::BACK_FACE);
program_cube.Start();
DrawShape(sphere);
}
transform.Pop();
}
transform.Pop();
pPlatform->UpdateBuffers();
if (pPlatform->GetKeyboard().keys[KB_LEFTSHIFT].IsPressed()){
if(pPlatform->GetKeyboard().keys[KB_UP].IsPressed())
distance += 1.0f * pPlatform->GetDT();
if(pPlatform->GetKeyboard().keys[KB_DOWN].IsPressed())
distance -= 1.0f * pPlatform->GetDT();
}else{
if(pPlatform->GetKeyboard().keys[KB_UP].IsPressed())
latitude += 90.0f * pPlatform->GetDT();
if(pPlatform->GetKeyboard().keys[KB_DOWN].IsPressed())
latitude -= 90.0f * pPlatform->GetDT();
if(pPlatform->GetKeyboard().keys[KB_LEFT].IsPressed())//l
longitude += 90.0f * pPlatform->GetDT();
if(pPlatform->GetKeyboard().keys[KB_RIGHT].IsPressed())//r
longitude -= 90.0f * pPlatform->GetDT();
}
}
void Setup(CPlatform * const pPlatform)
{
//for the shapes
unsigned int nTorusFloats;
float *pTorusVertices = 0;
float *pPlaneVertices = 0;
float colour[] = {1.0f,0.0f,0.0f, 0.0f,1.0f,0.0f, 0.0f,0.0f,1.0f};
unsigned int torusSegments = 36, torusTubeSegments = 36;
//for the shaders
const char *pVertStr[3] = {0,0,0}, *pFragStr = 0;
const char *pFragTexStr = 0, *pVertTexStr = 0;
//fbo stuff
WRender::Texture::SDescriptor descDepth = {WRender::Texture::TEX_2D, WRender::Texture::DEPTH_COMPONENT, TEX_DIMENSIONS, TEX_DIMENSIONS, 0, 0, WRender::Texture::DONT_GEN_MIPMAP};
WRender::Texture::SParam param[] ={
{ WRender::Texture::MIN_FILTER, WRender::Texture::LINEAR},
{ WRender::Texture::MAG_FILTER, WRender::Texture::LINEAR},
{ WRender::Texture::WRAP_S, WRender::Texture::CLAMP_TO_EDGE},
{ WRender::Texture::WRAP_T, WRender::Texture::CLAMP_TO_EDGE},
};
glswInit();
glswSetPath("../resources/", ".glsl");
WRender::SetClearColour(0,0,0,0);
WRender::EnableCulling(true);
// - - - - - - - - - -
//setup the shaders
// - - - - - - - - - -
//normal shader
glswGetShadersAlt("shaders.Version+shaders.Shared+shaders.SingleShadow.Vertex", pVertStr, 3);
pFragStr = glswGetShaders("shaders.Version+shaders.SingleShadow.Fragment");
CShader vertexShader(CShader::VERT, pVertStr, 3);
CShader fragmentShader(CShader::FRAG, &pFragStr, 1);
program.Initialise();
program.AddShader(&vertexShader);
program.AddShader(&fragmentShader);
program.Link();
uShadowMtx = program.GetUniformLocation("shadowMtx");
program.Start();
program.SetTextureUnit("shadowMap", 0);
program.Stop();
//debug shader for textures in screen space
pVertTexStr = glswGetShaders("shaders.Version+shaders.Dbg.ScreenSpaceTexture.Vertex");
pFragTexStr = glswGetShaders("shaders.Version+shaders.Dbg.ScreenSpaceTexture.Fragment");
CShader vTexShader(CShader::VERT, &pVertTexStr, 1);
CShader fTexShader(CShader::FRAG, &pFragTexStr, 1);
textureShader.Initialise();
textureShader.AddShader(&vTexShader);
textureShader.AddShader(&fTexShader);
textureShader.Link();
textureShader.Start();
textureShader.SetTextureUnit("texture",0);
textureShader.Stop();
// - - - - - - - - - -
//set up shapes
// - - - - - - - - - -
//shared colours
abColour = WRender::CreateBuffer(WRender::ARRAY, WRender::STATIC, sizeof(colour), colour);
//Torus
nTorusVertices = 2*torusTubeSegments*torusSegments*3;
nTorusFloats = nTorusVertices*3;
pTorusVertices = new float[nTorusFloats];
CreateTorus(pTorusVertices, torusSegments, 3.0f, torusTubeSegments, 1.0f);
vaoTorus = WRender::CreateVertexArrayObject();
abTorus = WRender::CreateBuffer(WRender::ARRAY, WRender::STATIC, sizeof(float)*nTorusFloats, pTorusVertices);
WRender::BindVertexArrayObject(vaoTorus);
WRender::VertexAttribute vaTorus[2] = {
{abTorus, 0, 3, WRender::FLOAT, 0, sizeof(float)*3, 0, 0},
{abColour, 1, 3, WRender::FLOAT, 0, sizeof(float)*9, sizeof(float)*6, 1},
};
WRender::SetAttributeFormat( vaTorus, 2, 0);
delete[] pTorusVertices;
//Plane
pPlaneVertices = new float[4*3*3];
CreatePlane(pPlaneVertices, 20.0f, 20.0f);
vaoPlane = WRender::CreateVertexArrayObject();
abPlane = WRender::CreateBuffer(WRender::ARRAY, WRender::STATIC, sizeof(float)*4*3*3, pPlaneVertices);
WRender::BindVertexArrayObject(vaoPlane);
WRender::VertexAttribute vaFrustum[2] = {
{abPlane, 0, 3, WRender::FLOAT, 0, sizeof(float)*3, 0, 0},
{abColour, 1, 3, WRender::FLOAT, 0, sizeof(float)*9, sizeof(float)*3, 1},
};
WRender::SetAttributeFormat( vaFrustum, 2, 0);
delete[] pPlaneVertices;
//for screen aligned texture
sqVao = WRender::CreateVertexArrayObject();
sqEab = WRender::CreateBuffer(WRender::ELEMENTS, WRender::STATIC, sizeof(sqIndices), sqIndices);
sqAb = WRender::CreateBuffer(WRender::ARRAY, WRender::STATIC, sizeof(sqVertices), sqVertices);
WRender::BindVertexArrayObject(sqVao);
WRender::BindBuffer(WRender::ELEMENTS, sqEab);
WRender::VertexAttribute sqVa[2] = {
{sqAb, 0, 3, WRender::FLOAT, 0, sizeof(float)*5, 0, 0}, //vertices
{sqAb, 1, 2, WRender::FLOAT, 0, sizeof(float)*5, sizeof(float)*3, 0}, //texture coordinates
};
WRender::SetAttributeFormat( sqVa, 2, 0);
WRender::UnbindVertexArrayObject();
// - - - - - - - - - -
//ubo for cameras etc
// - - - - - - - - - -
ubo = WRender::CreateBuffer(WRender::UNIFORM, WRender::DYNAMIC, sizeof(Transforms), &transform);
WRender::BindBufferToIndex(WRender::UNIFORM, ubo, 1);
//create the texture and FBO for rendering to when drawing
//during shadow stage
WRender::CreateBaseTexture(depthTexture, descDepth);
WRender::SetTextureParams(depthTexture,param,4);
WRender::CreateFrameBuffer(fbo);
WRender::AddTextureRenderBuffer(fbo, depthTexture, WRender::ATT_DEPTH, 0);
WRender::BindFrameBuffer(WRender::FrameBuffer::DRAW, fbo);
WRender::SetDrawBuffer(WRender::DB_NONE);
WRender::CheckFrameBuffer(fbo);
//set the projection matrix
Transform::CreateProjectionMatrix(transforms.proj, -1.0f, 1.0f, -1.0f, 1.0f, 1.0f, 50.0f);
WRender::BindTexture(depthTexture,WRender::Texture::UNIT_0);
}
// Render method runs repeatedly in a loop
void Game::Render()
{
// Clear the buffers and enable depth testing (z-buffering)
glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glEnable(GL_DEPTH_TEST);
// Set up a matrix stack
glutil::MatrixStack modelViewMatrixStack;
modelViewMatrixStack.SetIdentity();
// Use the main shader program
CShaderProgram *pMainProgram = (*m_pShaderPrograms)[0];
pMainProgram->UseProgram();
pMainProgram->SetUniform("bUseTexture", false);
pMainProgram->SetUniform("sampler0", 0);
pMainProgram->SetUniform("CubeMapTex", 1);
// Set the projection matrix
pMainProgram->SetUniform("matrices.projMatrix", m_pCamera->GetPerspectiveProjectionMatrix());
// Call LookAt to create the view matrix and put this on the modelViewMatrix stack.
// Store the view matrix and the normal matrix associated with the view matrix for later (they're useful for lighting -- since lighting is done in eye coordinates)
modelViewMatrixStack.LookAt(m_pCamera->GetPosition(), m_pCamera->GetView(), m_pCamera->GetUpVector());
glm::mat4 viewMatrix = modelViewMatrixStack.Top();
glm::mat3 viewNormalMatrix = m_pCamera->ComputeNormalMatrix(viewMatrix);
// Set light and materials in main shader program
glm::vec4 lightPosition1 = glm::vec4(-100, 100, 50, 1); // Position of light source *in world coordinates*
pMainProgram->SetUniform("light1.position", viewMatrix*lightPosition1); // Position of light source *in eye coordinates*
pMainProgram->SetUniform("light1.La", glm::vec3(0.15f)); // Ambient colour of light
pMainProgram->SetUniform("light1.Ld", glm::vec3(1.0f)); // Diffuse colour of light
pMainProgram->SetUniform("light1.Ls", glm::vec3(1.0f)); // Specular colour of light
pMainProgram->SetUniform("material1.Ma", glm::vec3(0.5f)); // Ambient material reflectance
pMainProgram->SetUniform("material1.Md", glm::vec3(0.5f)); // Diffuse material reflectance
pMainProgram->SetUniform("material1.Ms", glm::vec3(0.5f)); // Specular material reflectance
pMainProgram->SetUniform("material1.shininess", 15.0f); // Shininess material property
// Render the grid
modelViewMatrixStack.Push(); {
pMainProgram->SetUniform("matrices.modelViewMatrix", modelViewMatrixStack.Top());
pMainProgram->SetUniform("matrices.normalMatrix", m_pCamera->ComputeNormalMatrix(modelViewMatrixStack.Top()));
m_pGrid->Render();
} modelViewMatrixStack.Pop();
// Switch to the sphere program
CShaderProgram *pSphereProgram = (*m_pShaderPrograms)[2];
pSphereProgram->UseProgram();
// Set light and materials in sphere programme
pSphereProgram->SetUniform("material1.Ma", glm::vec3(0.0f, 1.0f, 0.0f));
pSphereProgram->SetUniform("material1.Md", glm::vec3(0.0f, 1.0f, 0.0f));
pSphereProgram->SetUniform("material1.Ms", glm::vec3(1.0f, 1.0f, 1.0f));
pSphereProgram->SetUniform("material1.shininess", 50.0f);
pSphereProgram->SetUniform("light1.La", glm::vec3(0.15f, 0.15f, 0.15f));
pSphereProgram->SetUniform("light1.Ld", glm::vec3(1.0f, 1.0f, 1.0f));
pSphereProgram->SetUniform("light1.Ls", glm::vec3(1.0f, 1.0f, 1.0f));
pSphereProgram->SetUniform("light1.position", viewMatrix*lightPosition1);
pSphereProgram->SetUniform("t", m_t);
pSphereProgram->SetUniform("iLevel", m_levels);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
// Render the sphere
modelViewMatrixStack.Push(); {
modelViewMatrixStack.Translate(glm::vec3(0.0f, 5.0f, 50.0f));
modelViewMatrixStack.Scale(5.0f);
pSphereProgram->SetUniform("matrices.projMatrix", m_pCamera->GetPerspectiveProjectionMatrix());
pSphereProgram->SetUniform("matrices.modelViewMatrix", modelViewMatrixStack.Top());
pSphereProgram->SetUniform("matrices.normalMatrix", m_pCamera->ComputeNormalMatrix(modelViewMatrixStack.Top()));
m_pSphere->Render();
} modelViewMatrixStack.Pop();
// Draw the 2D graphics after the 3D graphics
DisplayFrameRate();
// Swap buffers to show the rendered image
SwapBuffers(m_gameWindow.Hdc());
}
void MainLoop(CPlatform * const pPlatform)
{
float tranD[3] = {0.0f, -1.0f, 0};
//update the main application
pPlatform->Tick();
WRender::ClearScreenBuffer(COLOR_BIT | DEPTH_BIT);
WRender::EnableDepthTest(true);
program.Start();
//Draw from light perspective
//glPolygonOffset( 2.5f, 25.0f );
//glEnable( GL_POLYGON_OFFSET_FILL);
transform.Push();
{
WRender::SetupViewport(0, 0, TEX_DIMENSIONS, TEX_DIMENSIONS); //adjust viewport
WRender::BindFrameBuffer(WRender::FrameBuffer::DRAW, fbo); //set fbo
WRender::ClearScreenBuffer(COLOR_BIT | DEPTH_BIT); //clear draw buffers (must be called after we set the fbo)
rotLat.Identity(); rotLat.Rotate(lightLatitude, 1, 0, 0);
rotLong.Identity(); rotLong.Rotate(lightLongitude, 0, 1, 0);
transform.Translate(cameraPosition);
transform.ApplyTransform(rotLat);
transform.ApplyTransform(rotLong);
//setup shadow mvp
shadow_transform.Identity();
shadow_transform.Translate(0.5f, 0.5f, 0.5f);
shadow_transform.Scale(0.5f,0.5f,0.5f);
shadow_transform.ApplyTransform(transforms.proj);
shadow_transform.ApplyTransform(transform.GetCurrentMatrix());
DrawGeometry(true);
WRender::UnbindFrameBuffer(WRender::FrameBuffer::DRAW); //reset draw buffer
WRender::SetupViewport(0, 0, 640, 640); //reset viewport
}
//glDisable( GL_POLYGON_OFFSET_FILL);
transform.Pop();
//draw scene
transform.Push();
{
rotLat.Identity(); rotLat.Rotate(latitude, 1, 0, 0);
rotLong.Identity(); rotLong.Rotate(longitude, 0, 1, 0);
transform.Translate(cameraPosition);
transform.ApplyTransform(rotLat);
transform.ApplyTransform(rotLong);
DrawGeometry(false);
}
transform.Pop();
//render depth texture to screen
textureShader.Start();
WRender::BindVertexArrayObject(sqVao);
textureShader.SetVec3("translate",tranD);
WRender::Draw(WRender::TRIANGLE_STRIP, WRender::U_BYTE, sizeof(sqIndices)/sizeof(unsigned char), 0);
//update Keyboard
pPlatform->UpdateBuffers();
if(!pPlatform->GetKeyboard().keys[KB_LEFTSHIFT].IsPressed())
{ pLat = &latitude; pLong = &longitude;}
else
{ pLat = &lightLatitude; pLong = &lightLongitude;}
if(pPlatform->GetKeyboard().keys[KB_UP].IsPressed())
*pLat += 90.0f * pPlatform->GetDT();
if(pPlatform->GetKeyboard().keys[KB_DOWN].IsPressed())
*pLat -= 90.0f * pPlatform->GetDT();
if(pPlatform->GetKeyboard().keys[KB_LEFT].IsPressed())//l
*pLong += 90.0f * pPlatform->GetDT();
if(pPlatform->GetKeyboard().keys[KB_RIGHT].IsPressed())//r
*pLong -= 90.0f * pPlatform->GetDT();
}
////////////////////////////////////////////////////////////////////////////////
///
/// \brief Main function
///
/// This is the entrance point for program startup.
///
/// \param argc number of given arguments
/// \param argv array, storing the arguments
/// \return exit code
///
///////////////////////////////////////////////////////////////////////////////
int main(int argc, char *argv[])
{
if (argc != 2)
{
usage();
return EXIT_FAILURE;
}
std::string strDataPath = argv[1];
Log.setColourScheme(LOG_COLOUR_SCHEME_ONBLACK);
//--- Init Graphics ------------------------------------------------------//
CGraphics& Graphics = CGraphics::getInstance();
WindowHandleType* pWindow = new WindowHandleType(sf::VideoMode(Graphics.getWidthScr(), Graphics.getHeightScr()),
"Planeworld - GL Font Rendering Test", sf::Style::Default,
sf::ContextSettings(24,8,4,4,5,sf::ContextSettings::Core));
MEM_ALLOC("WindowHandleType")
Graphics.setWindow(pWindow);
//--- Init ---------------------------------------------------------------//
CShader VertexShaderFont;
CShader FragmentShaderFont;
CShaderProgram ShaderProgramFont;
CRenderMode RenderModeFont;
VertexShaderFont.load(strDataPath+"/shader/font.vert", GL_VERTEX_SHADER);
FragmentShaderFont.load(strDataPath+"/shader/font.frag", GL_FRAGMENT_SHADER);
ShaderProgramFont.create(VertexShaderFont, FragmentShaderFont);
RenderModeFont.setShaderProgram(&ShaderProgramFont);
RenderModeFont.setRenderModeType(RenderModeType::VERT3COL4TEX2);
Graphics.registerRenderMode("font", &RenderModeFont);
RenderModeFont.use();
CFontManager FontManager;
FontManager.addFont("anka_c87_r", strDataPath+"/fonts/AnkaCoder-C87-r.ttf");
FontManager.setFont("anka_c87_r");
Graphics.init();
Graphics.setupScreenSpace();
const std::vector<float> vecUVs =
{
0, 1,
1, 1,
0, 0,
1, 0
};
//--- Main Event Loop ----------------------------------------------------//
CTimer TimerMain; TimerMain.start();
bool bDone = false;
sf::Event Event;
Graphics.setColor({{1.0, 1.0, 1.0, 1.0}});
while (!bDone)
{
while (pWindow->pollEvent(Event))
{
switch (Event.type)
{
case sf::Event::KeyPressed:
if (Event.key.code == sf::Keyboard::Escape)
bDone = true;
break;
case sf::Event::Closed:
{
bDone = true;
break;
}
default:
break;
}
}
Graphics.beginRenderBatch("font");
FontManager.setFont("anka_c87_r");
Graphics.setColor({{0.0, 0.0, 1.0, 1.0}});
Graphics.texturedRect(Vector2d(0.0, FONT_MGR_ATLAS_SIZE_DEFAULT*FONT_MGR_SCALE),
Vector2d(FONT_MGR_ATLAS_SIZE_DEFAULT*FONT_MGR_SCALE, 0.0),
&vecUVs);
Graphics.setColor({{0.0, 1.0, 0.0, 1.0}});
FontManager.drawText("You should see a blue texture atlas above (ASCII characters).", 300.0f, 200.0f);
FontManager.drawText("This notice is green, also regular font face.", 300.0f, 220.0f);
Graphics.endRenderBatch();
Graphics.swapBuffers();
TimerMain.sleepRemaining(60.0);
}
//--- Clean up -----------------------------------------------------------//
if (pWindow != nullptr)
{
delete pWindow;
MEM_FREED("WindowHandleType")
pWindow = nullptr;
}
return EXIT_SUCCESS;
}
// Initializes OpenGL features that will be used.
// lpParam - Pointer to anything you want.
void InitScene(LPVOID lpParam)
{
//glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
//Новый цвет фона
glClearColor(0.0f, 0.5f, 1.0f, 1.0f);
// Setup triangle vertices
fTriangle[0] = -0.9f; fTriangle[1] = 0.7f; fTriangle[2] = 0.0f;
fTriangle[3] = -0.7f; fTriangle[4] = 0.9f; fTriangle[5] = 0.0f;
fTriangle[6] = -0.5f; fTriangle[7] = 0.7f; fTriangle[8] = 0.0f;
// Setup triangle color
fTriangleColor[0] = 1.0f; fTriangleColor[1] = 0.0f; fTriangleColor[2] = 0.0f;
fTriangleColor[3] = 0.0f; fTriangleColor[4] = 1.0f; fTriangleColor[5] = 0.0f;
fTriangleColor[6] = 0.0f; fTriangleColor[7] = 0.0f; fTriangleColor[8] = 1.0f;
// Setup quad vertices
fQuad[0] = 0.7f; fQuad[1] = 0.9f; fQuad[2] = 0.0f;
fQuad[3] = 0.7f; fQuad[4] = 0.6f; fQuad[5] = 0.0f;
fQuad[6] = 0.9f; fQuad[7] = 0.9f; fQuad[8] = 0.0f;
fQuad[9] = 0.9f; fQuad[10] = 0.6f; fQuad[11] = 0.0f;
// Setup quad color
fQuadColor[0] = 1.0f; fQuadColor[1] = 0.0f; fQuadColor[2] = 0.0f;
fQuadColor[3] = 0.0f; fQuadColor[4] = 1.0f; fQuadColor[8] = 0.0f;
fQuadColor[6] = 0.0f; fQuadColor[7] = 0.0f; fQuadColor[5] = 1.0f;
fQuadColor[9] = 1.0f; fQuadColor[10] = 1.0f; fQuadColor[11] = 0.0f;
// Setup duck vertices
fDuck[0] = 0.0f; fDuck[1] = 0.8f; fDuck[2] = 0.0f;
fDuck[3] = -0.2f; fDuck[4] = 0.4f; fDuck[5] = 0.0f;
fDuck[6] = -0.2f; fDuck[7] = -0.3f; fDuck[8] = 0.0f;
fDuck[9] = -0.3f; fDuck[10] = -0.5f; fDuck[11] = 0.0f;
fDuck[12] = -0.3f; fDuck[13] = -0.9f; fDuck[14] = 0.0f;
fDuck[15] = -0.2f; fDuck[16] = -0.9f; fDuck[17] = 0.0f;
fDuck[18] = -0.2f; fDuck[19] = -0.7f; fDuck[20] = 0.0f;
fDuck[21] = -0.05f; fDuck[22] = -0.7f; fDuck[23] = 0.0f;
fDuck[24] = -0.05f; fDuck[25] = -0.9f; fDuck[26] = 0.0f;
fDuck[27] = 0.05f; fDuck[28] = -0.9f; fDuck[29] = 0.0f;
fDuck[30] = 0.05f; fDuck[31] = -0.7f; fDuck[32] = 0.0f;
fDuck[33] = 0.2f; fDuck[34] = -0.7f; fDuck[35] = 0.0f;
fDuck[36] = 0.2f; fDuck[37] = -0.9f; fDuck[38] = 0.0f;
fDuck[39] = 0.3f; fDuck[40] = -0.9f; fDuck[41] = 0.0f;
fDuck[42] = 0.3f; fDuck[43] = -0.5f; fDuck[44] = 0.0f;
fDuck[45] = 0.2f; fDuck[46] = -0.3f; fDuck[47] = 0.0f;
fDuck[48] = 0.2f; fDuck[49] = 0.4f; fDuck[50] = 0.0f;
fDuck[51] = 0.0f; fDuck[52] = 0.8f; fDuck[53] = 0.0f;
// Setup duck color
fDuckColor[0] = 1.0f; fDuckColor[1] = 0.0f; fDuckColor[2] = 0.0f;
fDuckColor[3] = 1.0f; fDuckColor[4] = 1.0f; fDuckColor[5] = 0.0f;
fDuckColor[6] = 1.0f; fDuckColor[7] = 0.0f; fDuckColor[8] = 1.0f;
fDuckColor[9] = 1.0f; fDuckColor[10] = 0.0f; fDuckColor[11] = 0.0f;
fDuckColor[12] = 1.0f; fDuckColor[13] = 1.0f; fDuckColor[14] = 0.0f;
fDuckColor[15] = 1.0f; fDuckColor[16] = 0.0f; fDuckColor[17] = 1.0f;
fDuckColor[18] = 1.0f; fDuckColor[19] = 0.0f; fDuckColor[20] = 0.0f;
fDuckColor[21] = 1.0f; fDuckColor[22] = 1.0f; fDuckColor[23] = 0.0f;
fDuckColor[24] = 1.0f; fDuckColor[25] = 0.0f; fDuckColor[26] = 1.0f;
fDuckColor[27] = 1.0f; fDuckColor[28] = 0.0f; fDuckColor[29] = 0.0f;
fDuckColor[30] = 1.0f; fDuckColor[31] = 1.0f; fDuckColor[32] = 0.0f;
fDuckColor[33] = 0.2f; fDuckColor[34] = -0.7f; fDuckColor[35] = 0.0f;
fDuckColor[36] = 0.2f; fDuckColor[37] = -0.9f; fDuckColor[38] = 0.0f;
fDuckColor[39] = 0.3f; fDuckColor[40] = -0.9f; fDuckColor[41] = 0.0f;
fDuckColor[42] = 0.3f; fDuckColor[43] = -0.5f; fDuckColor[44] = 0.0f;
fDuckColor[45] = 0.2f; fDuckColor[46] = -0.3f; fDuckColor[47] = 0.0f;
fDuckColor[48] = 0.2f; fDuckColor[49] = -0.3f; fDuckColor[50] = 0.0f;
fDuckColor[51] = 1.0f; fDuckColor[52] = 0.0f; fDuckColor[53] = 0.0f;
// Setup duck vertices
fMore[0] = 0.0f; fMore[1] = 0.0f; fMore[2] = 0.0f;
fMore[3] = 0.5f; fMore[4] = 0.0f; fMore[5] = 0.0f;
fMore[6] = 0.5f; fMore[7] = 0.5f; fMore[8] = 0.0f;
fMore[9] = 0.0f; fMore[10] = 0.0f; fMore[11] = 0.0f;
fMore[12] = 0.0f; fMore[13] = 0.5f; fMore[14] = 0.0f;
fMore[15] = -0.5f; fMore[16] = 0.5f; fMore[17] = 0.0f;
fMore[18] = 0.0f; fMore[19] = 0.0f; fMore[20] = 0.0f;
fMore[21] = -0.5f; fMore[22] = 0.0f; fMore[23] = 0.0f;
fMore[24] = -0.5f; fMore[25] = -0.5f; fMore[26] = 0.0f;
fMore[27] = 0.0f; fMore[28] = 0.0f; fMore[29] = 0.0f;
fMore[30] = 0.0f; fMore[31] = -0.5f; fMore[32] = 0.0f;
fMore[33] = 0.5f; fMore[34] = -0.5f; fMore[35] = 0.0f;
for (int i = 0; i < 36; i++) {
fMore[i] = fMore[i] * 0.4 - 0.6f;
}
// Setup duck color
fMoreColor[0] = 1.0f; fMoreColor[1] = 1.0f; fMoreColor[2] = 1.0f;
fMoreColor[3] = 1.0f; fMoreColor[4] = 1.0f; fMoreColor[5] = 1.0f;
fMoreColor[6] = 1.0f; fMoreColor[7] = 1.0f; fMoreColor[8] = 1.0f;
fMoreColor[9] = 1.0f; fMoreColor[10] = 0.0f; fMoreColor[11] = 0.0f;
fMoreColor[12] = 1.0f; fMoreColor[13] = 1.0f; fMoreColor[14] = 0.0f;
fMoreColor[15] = 1.0f; fMoreColor[16] = 0.0f; fMoreColor[17] = 1.0f;
fMoreColor[18] = 1.0f; fMoreColor[19] = 1.0f; fMoreColor[20] = 1.0f;
fMoreColor[21] = 1.0f; fMoreColor[22] = 1.0f; fMoreColor[23] = 1.0f;
fMoreColor[24] = 1.0f; fMoreColor[25] = 1.0f; fMoreColor[26] = 1.0f;
fMoreColor[27] = 1.0f; fMoreColor[28] = 0.0f; fMoreColor[29] = 0.0f;
fMoreColor[30] = 1.0f; fMoreColor[31] = 1.0f; fMoreColor[32] = 0.0f;
fMoreColor[33] = 0.2f; fMoreColor[34] = -0.7f; fMoreColor[35] = 0.0f;
glGenVertexArrays(4, uiVAO); // Generate two VAOs, one for triangle and one for quad
glGenBuffers(8, uiVBO); // And four VBOs
// Setup whole triangle
glBindVertexArray(uiVAO[0]);
glBindBuffer(GL_ARRAY_BUFFER, uiVBO[0]);
glBufferData(GL_ARRAY_BUFFER, 9*sizeof(float), fTriangle, GL_STATIC_DRAW);
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, 0);
glBindBuffer(GL_ARRAY_BUFFER, uiVBO[1]);
glBufferData(GL_ARRAY_BUFFER, 9*sizeof(float), fTriangleColor, GL_STATIC_DRAW);
glEnableVertexAttribArray(1);
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 0, 0);
// Setup whole quad
glBindVertexArray(uiVAO[1]);
glBindBuffer(GL_ARRAY_BUFFER, uiVBO[2]);
glBufferData(GL_ARRAY_BUFFER, 12*sizeof(float), fQuad, GL_STATIC_DRAW);
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, 0);
glBindBuffer(GL_ARRAY_BUFFER, uiVBO[3]);
glBufferData(GL_ARRAY_BUFFER, 12*sizeof(float), fQuadColor, GL_STATIC_DRAW);
glEnableVertexAttribArray(1);
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 0, 0);
// Setup whole quad
glBindVertexArray(uiVAO[2]);
glBindBuffer(GL_ARRAY_BUFFER, uiVBO[4]);
glBufferData(GL_ARRAY_BUFFER, 54 * sizeof(float), fDuck, GL_STATIC_DRAW);
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, 0);
glBindBuffer(GL_ARRAY_BUFFER, uiVBO[5]);
glBufferData(GL_ARRAY_BUFFER, 54 * sizeof(float), fDuckColor, GL_STATIC_DRAW);
glEnableVertexAttribArray(1);
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 0, 0);
// Setup whole quad
glBindVertexArray(uiVAO[3]);
glBindBuffer(GL_ARRAY_BUFFER, uiVBO[6]);
glBufferData(GL_ARRAY_BUFFER, 36 * sizeof(float), fMore, GL_STATIC_DRAW);
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, 0);
glBindBuffer(GL_ARRAY_BUFFER, uiVBO[7]);
glBufferData(GL_ARRAY_BUFFER, 36 * sizeof(float), fMoreColor, GL_STATIC_DRAW);
glEnableVertexAttribArray(1);
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 0, 0);
// Load shaders and create shader program
shVertex.LoadShader("data\\shaders\\shader.vert", GL_VERTEX_SHADER);
shFragment.LoadShader("data\\shaders\\shader.frag", GL_FRAGMENT_SHADER);
spMain.CreateProgram();
spMain.AddShaderToProgram(&shVertex);
spMain.AddShaderToProgram(&shFragment);
spMain.LinkProgram();
spMain.UseProgram();
}
// Initialisation: This method only runs once at startup
void Game::Initialise()
{
// Set the clear colour and depth
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClearDepth(1.0f);
/// Create objects
m_pCamera = new CCamera;
m_pSkybox = new CSkybox;
m_pShaderPrograms = new vector <CShaderProgram *>;
m_pPlanarTerrain = new CPlane;
m_pFtFont = new CFreeTypeFont;
m_pBarrelMesh = new COpenAssetImportMesh;
m_pHorseMesh = new COpenAssetImportMesh;
m_pSphere = new CSphere;
m_pAudio = new CAudio;
m_pGrid = new CGrid;
RECT dimensions = m_gameWindow.GetDimensions();
int width = dimensions.right - dimensions.left;
int height = dimensions.bottom - dimensions.top;
// Set the orthographic and perspective projection matrices based on the image size
m_pCamera->SetOrthographicProjectionMatrix(width, height);
m_pCamera->SetPerspectiveProjectionMatrix(45.0f, (float) width / (float) height, 0.5f, 5000.0f);
// Load shaders
vector<CShader> shShaders;
vector<string> sShaderFileNames;
sShaderFileNames.push_back("mainShader.vert");
sShaderFileNames.push_back("mainShader.frag");
sShaderFileNames.push_back("textShader.vert");
sShaderFileNames.push_back("textShader.frag");
sShaderFileNames.push_back("sphereShader.vert");
sShaderFileNames.push_back("sphereShader.frag");
for (int i = 0; i < (int) sShaderFileNames.size(); i++) {
string sExt = sShaderFileNames[i].substr((int) sShaderFileNames[i].size()-4, 4);
int iShaderType;
if (sExt == "vert") iShaderType = GL_VERTEX_SHADER;
else if (sExt == "frag") iShaderType = GL_FRAGMENT_SHADER;
else if (sExt == "geom") iShaderType = GL_GEOMETRY_SHADER;
else if (sExt == "tcnl") iShaderType = GL_TESS_CONTROL_SHADER;
else iShaderType = GL_TESS_EVALUATION_SHADER;
CShader shader;
shader.LoadShader("resources\\shaders\\"+sShaderFileNames[i], iShaderType);
shShaders.push_back(shader);
}
// Create the main shader program
CShaderProgram *pMainProgram = new CShaderProgram;
pMainProgram->CreateProgram();
pMainProgram->AddShaderToProgram(&shShaders[0]);
pMainProgram->AddShaderToProgram(&shShaders[1]);
pMainProgram->LinkProgram();
m_pShaderPrograms->push_back(pMainProgram);
// Create a shader program for fonts
CShaderProgram *pFontProgram = new CShaderProgram;
pFontProgram->CreateProgram();
pFontProgram->AddShaderToProgram(&shShaders[2]);
pFontProgram->AddShaderToProgram(&shShaders[3]);
pFontProgram->LinkProgram();
m_pShaderPrograms->push_back(pFontProgram);
// Create the sphere shader program
CShaderProgram *pSphereProgram = new CShaderProgram;
pSphereProgram->CreateProgram();
pSphereProgram->AddShaderToProgram(&shShaders[4]);
pSphereProgram->AddShaderToProgram(&shShaders[5]);
pSphereProgram->LinkProgram();
m_pShaderPrograms->push_back(pSphereProgram);
// Create the skybox
// Skybox downloaded from http://www.akimbo.in/forum/viewtopic.php?f=10&t=9
m_pSkybox->Create(2500.0f);
// Create the planar terrain
m_pPlanarTerrain->Create("resources\\textures\\", "grassfloor01.jpg", 2000.0f, 2000.0f, 50.0f); // Texture downloaded from http://www.psionicgames.com/?page_id=26 on 24 Jan 2013
m_pFtFont->LoadSystemFont("arial.ttf", 32);
m_pFtFont->SetShaderProgram(pFontProgram);
// Load some meshes in OBJ format
m_pBarrelMesh->Load("resources\\models\\Barrel\\Barrel02.obj"); // Downloaded from http://www.psionicgames.com/?page_id=24 on 24 Jan 2013
m_pHorseMesh->Load("resources\\models\\Horse\\Horse2.obj"); // Downloaded from http://opengameart.org/content/horse-lowpoly on 24 Jan 2013
// Create a sphere
m_pSphere->Create("resources\\textures\\", "dirtpile01.jpg", 25, 25); // Texture downloaded from http://www.psionicgames.com/?page_id=26 on 24 Jan 2013
glEnable(GL_CULL_FACE);
// Initialise audio and play background music
m_pAudio->Initialise();
m_pAudio->LoadEventSound("Resources\\Audio\\Boing.wav"); // Royalty free sound from freesound.org
m_pAudio->LoadMusicStream("Resources\\Audio\\DST-Garote.mp3"); // Royalty free music from http://www.nosoapradio.us/
m_pAudio->PlayMusicStream();
// Create the grid
m_pGrid->Create(500, 500, 15);
}
void CSDLOpenGLWindow::InitScene()
{
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
vboSceneObjects.CreateVBO();
glGenVertexArrays(2, uiVAOs); // Create one VAO
glBindVertexArray(uiVAOs[0]);
vboSceneObjects.BindVBO();
// Add cube to VBO
for (int i = 0; i < 36; i++)
{
vboSceneObjects.AddData(&vCubeVertices[i], sizeof(glm::vec3));
vboSceneObjects.AddData(&vCubeTexCoords[i % 6], sizeof(glm::vec2));
}
// Add ground to VBO
for (int i = 0; i < 6; i++)
{
vboSceneObjects.AddData(&vGround[i], sizeof(glm::vec3));
vCubeTexCoords[i] *= 10.0f;
vboSceneObjects.AddData(&vCubeTexCoords[i % 6], sizeof(glm::vec2));
}
vboSceneObjects.UploadDataToGPU(GL_STATIC_DRAW);
// Vertex positions
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof(glm::vec3) + sizeof(glm::vec2), 0);
// Texture coordinates
glEnableVertexAttribArray(1);
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(glm::vec3) + sizeof(glm::vec2), (void*)sizeof(glm::vec3));
// Setup another VAO for untextured objects
glBindVertexArray(uiVAOs[1]);
// Here enable only first vertex attribute - position (no texture coordinates)
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof(glm::vec3) + sizeof(glm::vec2), 0);
// Load shaders and create shader programs
shVertexTex.LoadShader("data\\shaders\\tut07\\shaderTex.vert", GL_VERTEX_SHADER);
shFragmentTex.LoadShader("data\\shaders\\tut07\\shaderTex.frag", GL_FRAGMENT_SHADER);
shVertexCol.LoadShader("data\\shaders\\tut07\\shaderCol.vert", GL_VERTEX_SHADER);
shFragmentCol.LoadShader("data\\shaders\\tut07\\shaderCol.frag", GL_FRAGMENT_SHADER);
spTextured.CreateProgram();
spTextured.AddShaderToProgram(&shVertexTex);
spTextured.AddShaderToProgram(&shFragmentTex);
spTextured.LinkProgram();
spColored.CreateProgram();
spColored.AddShaderToProgram(&shVertexCol);
spColored.AddShaderToProgram(&shFragmentCol);
spColored.LinkProgram();
tBlueIce.LoadTexture2D("data\\textures\\blueice.jpg", true);
tBlueIce.SetFiltering(TEXTURE_FILTER_MAG_BILINEAR, TEXTURE_FILTER_MIN_BILINEAR_MIPMAP);
tBox.LoadTexture2D("data\\textures\\box.jpg", true);
tBox.SetFiltering(TEXTURE_FILTER_MAG_BILINEAR, TEXTURE_FILTER_MIN_BILINEAR_MIPMAP);
glEnable(GL_DEPTH_TEST);
glClearDepth(1.0);
glClearColor(0.2f, 0.32f, 0.5f, 1.0f);
cCamera = CWalkingCamera(glm::vec3(0.0f, 0.0f, -20.0f), glm::vec3(0.0f, 0.0f, -19.0f), glm::vec3(0.0f, 1.0f, 0.0f), 15.0f);
}
void CSDLOpenGLWindow::RenderScene()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glm::mat4 mModelView = cCamera.look();
glm::mat4 mCurrent = mModelView;
// First render textured objects
glEnable(GL_TEXTURE_2D);
spTextured.UseProgram();
glBindVertexArray(uiVAOs[0]);
spTextured.SetUniform("projectionMatrix", GetProjectionMatrix());
spTextured.SetUniform("modelViewMatrix", mModelView);
spTextured.SetUniform("vColor", glm::vec4(1, 1, 1, 1));
// Render ground
tBlueIce.BindTexture();
glDrawArrays(GL_TRIANGLES, 36, 6);
// Render 5 opaque boxes
tBox.BindTexture();
for (int i = 0; i < 5; i++)
{
float fSign = -1.0f + float(i % 2)*2.0f; // This just returns -1.0f or 1.0f (try to examine this)
glm::vec3 vPos = glm::vec3(fSign*15.0f, 0.0f, 50.0f - float(i)*25.0f);
mCurrent = glm::translate(mModelView, vPos);
mCurrent = glm::scale(mCurrent, glm::vec3(8.0f, 8.0f, 8.0f));
mCurrent = glm::rotate(mCurrent, fGlobalAngle + float(i)*50.0f* PIover180, glm::vec3(0.0f, 1.0f, 0.0f));
spTextured.SetUniform("modelViewMatrix", mCurrent);
glDrawArrays(GL_TRIANGLES, 0, 36);
}
// Now switch to only colored rendering
glDisable(GL_TEXTURE_2D);
spColored.UseProgram();
glBindVertexArray(uiVAOs[1]);
spColored.SetUniform("projectionMatrix", GetProjectionMatrix());
// Render 5 transparent boxes
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDepthMask(0); // Disable writing to depth buffer
for (int i = 0; i < 5; i++)
{
float fSign = 1.0f - float(i % 2)*2.0f; // Same case as before - -1.0f or 1.0f
glm::vec3 vPos = glm::vec3(fSign*15.0f, 0.0f, 50.0f - float(i)*25.0f);
mCurrent = glm::translate(mModelView, vPos);
mCurrent = glm::scale(mCurrent, glm::vec3(8.0f, 8.0f, 8.0f));
mCurrent = glm::rotate(mCurrent, fGlobalAngle*0.8f + i*30.0f*PIover180, glm::vec3(1.0f, 0.0f, 0.0f)); // Just a variation of first rotating
spColored.SetUniform("modelViewMatrix", mCurrent);
spColored.SetUniform("vColor", vBoxColors[i]);
glDrawArrays(GL_TRIANGLES, 0, 36);
}
glDisable(GL_BLEND);
glDepthMask(1); // Re-enable writing to depth buffer
fGlobalAngle += sof(100.0f*PIover180);
cCamera.Update(this);
}
// Render method runs repeatedly in a loop
void Game::Render()
{
// Clear the buffers and enable depth testing (z-buffering)
glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glEnable(GL_DEPTH_TEST);
// Set up a matrix stack
glutil::MatrixStack modelViewMatrixStack;
modelViewMatrixStack.SetIdentity();
modelViewMatrixStack.LookAt(m_pCamera->GetPosition(), m_pCamera->GetView(), m_pCamera->GetUpVector());
// Use the main shader program
CShaderProgram *pMainProgram = (*m_pShaderPrograms)[0];
pMainProgram->UseProgram();
// Set light and materials in main shader program
glm::vec4 vPosition(-100, 100, 50, 1);
glm::mat3 normalMatrix = m_pCamera->ComputeNormalMatrix(modelViewMatrixStack.Top());
glm::vec4 vLightEye = modelViewMatrixStack.Top()*vPosition;
pMainProgram->SetUniform("light1.position", vLightEye); // Position of light source in eye coordinates
pMainProgram->SetUniform("light1.La", glm::vec3(0.15f, 0.15f, 0.15f));
pMainProgram->SetUniform("light1.Ld", glm::vec3(1.0f, 1.0f, 1.0f));
pMainProgram->SetUniform("light1.Ls", glm::vec3(1.0f, 1.0f, 1.0f));
pMainProgram->SetUniform("material1.Ma", glm::vec3(0.5f, 0.5f, 0.5f));
pMainProgram->SetUniform("material1.Md", glm::vec3(0.5f, 0.5f, 0.5f));
pMainProgram->SetUniform("material1.Ms", glm::vec3(0.5f, 0.5f, 0.5f));
pMainProgram->SetUniform("material1.shininess", 15.0f);
pMainProgram->SetUniform("bUseTexture", false);
pMainProgram->SetUniform("sampler0", 0);
// Render the grid
modelViewMatrixStack.Push();
pMainProgram->SetUniform("matrices.projMatrix", m_pCamera->GetPerspectiveProjectionMatrix());
pMainProgram->SetUniform("matrices.modelViewMatrix", modelViewMatrixStack.Top());
pMainProgram->SetUniform("matrices.normalMatrix", m_pCamera->ComputeNormalMatrix(modelViewMatrixStack.Top()));
m_pGrid->Render();
modelViewMatrixStack.Pop();
// Switch to the sphere program
CShaderProgram *pSphereProgram = (*m_pShaderPrograms)[2];
pSphereProgram->UseProgram();
// Set light and materials in sphere programme
pSphereProgram->SetUniform("material1.Ma", glm::vec3(0.0f, 1.0f, 0.0f));
pSphereProgram->SetUniform("material1.Md", glm::vec3(0.0f, 1.0f, 0.0f));
pSphereProgram->SetUniform("material1.Ms", glm::vec3(1.0f, 1.0f, 1.0f));
pSphereProgram->SetUniform("material1.shininess", 50.0f);
pSphereProgram->SetUniform("light1.La", glm::vec3(0.15f, 0.15f, 0.15f));
pSphereProgram->SetUniform("light1.Ld", glm::vec3(1.0f, 1.0f, 1.0f));
pSphereProgram->SetUniform("light1.Ls", glm::vec3(1.0f, 1.0f, 1.0f));
pSphereProgram->SetUniform("light1.position", vLightEye);
// Render the sphere
modelViewMatrixStack.Push();
modelViewMatrixStack.Translate(glm::vec3(0.0f, 5.0f, 50.0f));
modelViewMatrixStack.Scale(5.0f);
pSphereProgram->SetUniform("matrices.projMatrix", m_pCamera->GetPerspectiveProjectionMatrix());
pSphereProgram->SetUniform("matrices.modelViewMatrix", modelViewMatrixStack.Top());
pSphereProgram->SetUniform("matrices.normalMatrix", m_pCamera->ComputeNormalMatrix(modelViewMatrixStack.Top()));
pSphereProgram->SetUniform("t",m_elapsedTime);
pSphereProgram->SetUniform("levels",m_levels);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
m_pSphere->Render();
modelViewMatrixStack.Pop();
#ifdef __WIN32
void swapBuffers();
#endif
#ifdef __APPLE__
glSwapAPPLE();
#endif
}
void CSDLOpenGLWindow::RenderScene()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glEnable(GL_TEXTURE_2D);
spDirectionalLight.UseProgram();
glBindVertexArray(uiVAOs[0]);
// Set light properties
float fSine = sin(fSunAngle*PIover180);
glm::vec3 vSunPos(cos(fSunAngle*PIover180) * 70, sin(fSunAngle*PIover180) * 70, 0.0);
// We'll change color of skies depending on sun's position
glClearColor(0.0f, std::max(0.0f, 0.9f*fSine), std::max(0.0f, 0.9f*fSine), 1.0f);
spDirectionalLight.SetUniform("sunLight.vColor", glm::vec3(1.0f, 1.0f, 1.0f));
spDirectionalLight.SetUniform("sunLight.fAmbientIntensity", 0.25f);
spDirectionalLight.SetUniform("sunLight.fStrength", 1.0f);
spDirectionalLight.SetUniform("sunLight.vDirection", -glm::normalize(vSunPos));
spDirectionalLight.SetUniform("projectionMatrix", GetProjectionMatrix());
glm::mat4 mView = cCamera.look();
glm::mat4 mModel(1.0);
spDirectionalLight.SetUniform("gSampler", 0);
spDirectionalLight.SetUniform("modelViewMatrix", mView*mModel);
spDirectionalLight.SetUniform("normalMatrix", glm::transpose(glm::inverse(glm::mat3(mModel))));
spDirectionalLight.SetUniform("vColor", glm::vec4(1.0f, 1.0f, 1.0f, 1.0f));
// Render ground
tTextures[0].BindTexture();
glDrawArrays(GL_TRIANGLES, 36, 6);
tTextures[1].BindTexture();
for (int i = 0; i < 5; i++)
{
float fSign = -1.0f + float(i % 2)*2.0f; // This just returns -1.0f or 1.0f (try to examine this)
glm::vec3 vPos = glm::vec3(fSign*15.0f, 0.0f, 50.0f - float(i)*25.0f);
mModel = glm::translate(glm::mat4(1.0), vPos);
mModel = glm::scale(mModel, glm::vec3(8.0f, 8.0f, 8.0f));
// We need to trasnsform normals properly, it's done by transpose of inverse matrix of rotations and scales
spDirectionalLight.SetUniform("normalMatrix", glm::transpose(glm::inverse(glm::mat3(mModel))));
spDirectionalLight.SetUniform("modelViewMatrix", mView*mModel);
glDrawArrays(GL_TRIANGLES, 0, 36);
}
// Render 5 tori (plural of torus :D)
tTextures[2].BindTexture();
for (int i = 0; i < 5; i++)
{
float fSign = 1.0f - float(i % 2)*2.0f; // This just returns -1.0f or 1.0f (try to examine this)
glm::vec3 vPos = glm::vec3(fSign*15.0f, 0.0f, 50.0f - float(i)*25.0f);
mModel = glm::translate(glm::mat4(1.0), vPos);
mModel = glm::rotate(mModel, fGlobalAngle + i*30.0f, glm::vec3(0.0f, 1.0f, 0.0f));
spDirectionalLight.SetUniform("normalMatrix", glm::transpose(glm::inverse(glm::mat3(mModel))));
spDirectionalLight.SetUniform("modelViewMatrix", mView*mModel);
glDrawArrays(GL_TRIANGLES, 42, iTorusFaces1 * 3);
}
tTextures[3].BindTexture();
// Render "sun" :D
mModel = glm::translate(glm::mat4(1.0), vSunPos);
spDirectionalLight.SetUniform("modelViewMatrix", mView*mModel);
spDirectionalLight.SetUniform("normalMatrix", glm::transpose(glm::inverse(glm::mat3(mModel))));
// It must shine
spDirectionalLight.SetUniform("sunLight.fAmbientIntensity", 0.8f);
glDrawArrays(GL_TRIANGLES, 42 + iTorusFaces1 * 3, iTorusFaces2 * 3);
fGlobalAngle += sof(100.0f*PIover180);
cCamera.Update(this);
if (Keys::Key(SDL_SCANCODE_LEFT))fSunAngle -= sof(45.0f);
if (Keys::Key(SDL_SCANCODE_RIGHT))fSunAngle += sof(45.0f);
}
void Setup(CPlatform * const pPlatform)
{
int utex = 0;
unsigned char * pTexture = 0;
WRender::Texture::SDescriptor desc = {WRender::Texture::TEX_3D, WRender::Texture::RGB8, WIDTH, HEIGHT, DEPTH, 0, WRender::Texture::DONT_GEN_MIPMAP};
WRender::Texture::SParam param[] ={
//tex 0
{ WRender::Texture::MIN_FILTER, WRender::Texture::NEAREST},
{ WRender::Texture::MAG_FILTER, WRender::Texture::NEAREST},
{ WRender::Texture::WRAP_S, WRender::Texture::REPEAT},
{ WRender::Texture::WRAP_T, WRender::Texture::REPEAT},
// tex 1
{ WRender::Texture::MIN_FILTER, WRender::Texture::LINEAR},
{ WRender::Texture::MAG_FILTER, WRender::Texture::LINEAR},
{ WRender::Texture::WRAP_S, WRender::Texture::REPEAT},
{ WRender::Texture::WRAP_T, WRender::Texture::REPEAT},
// tex 2
{ WRender::Texture::MIN_FILTER, WRender::Texture::LINEAR},
{ WRender::Texture::MAG_FILTER, WRender::Texture::LINEAR},
{ WRender::Texture::WRAP_S, WRender::Texture::REPEAT},
{ WRender::Texture::WRAP_T, WRender::Texture::CLAMP_TO_EDGE},
// tex 3
{ WRender::Texture::MIN_FILTER, WRender::Texture::LINEAR},
{ WRender::Texture::MAG_FILTER, WRender::Texture::LINEAR},
{ WRender::Texture::WRAP_S, WRender::Texture::CLAMP_TO_EDGE},
{ WRender::Texture::WRAP_T, WRender::Texture::CLAMP_TO_EDGE},
// tex 4
{ WRender::Texture::MIN_FILTER, WRender::Texture::NEAREST},
{ WRender::Texture::MAG_FILTER, WRender::Texture::NEAREST},
{ WRender::Texture::WRAP_S, WRender::Texture::CLAMP_TO_EDGE},
{ WRender::Texture::WRAP_T, WRender::Texture::CLAMP_TO_EDGE},
};
CShader vertexShader(CShader::VERT, &pVertexShader, 1);
CShader fragmentShader(CShader::FRAG, &pFragmentShader, 1);
WRender::Pixel::Data pixelData = {WRender::Pixel::RGB, WRender::Pixel::UCHAR, 0, 0};
// - - - - - - - - - -
// create textures
pTexture = new unsigned char[WIDTH * HEIGHT * DEPTH * 3];
for(unsigned int d=0;d<DEPTH;d++)
for(unsigned int h=0;h<HEIGHT;h++)
for(unsigned int w=0;w<WIDTH;w++)
{
int depth_index = d*HEIGHT*WIDTH*3;
int height_index = h*WIDTH*3;
int width_index = w*3;
pTexture[depth_index + height_index + width_index + 0] = (255*w)/(WIDTH); //R
pTexture[depth_index + height_index + width_index + 1] = (255*h)/(HEIGHT); //G
pTexture[depth_index + height_index + width_index + 2] = (255*d)/(DEPTH);//(255*(w+h))/(WIDTH+HEIGHT); //B
}
pixelData.pData = (void*)pTexture;
WRender::ActiveTexture(WRender::Texture::UNIT_4);
//tex 0
if(WRender::CreateBaseTexture(tex[0], desc))
{
WRender::UpdateTextureData(tex[0], pixelData);
WRender::SetTextureParams(tex[0], param, 4);
}
//tex 1
if(WRender::CreateBaseTextureData(tex[1], desc, pixelData))
WRender::SetTextureParams(tex[1], param+4, 4);
//tex 2
if(WRender::CreateBaseTextureData(tex[2], desc, pixelData))
WRender::SetTextureParams(tex[2], param+8, 4);
//tex 3
if(WRender::CreateBaseTextureData(tex[3], desc, pixelData))
WRender::SetTextureParams(tex[3], param+12, 4);
//tex 4
if(WRender::CreateBaseTextureData(tex[4], desc, pixelData))
WRender::SetTextureParams(tex[4], param+16, 4);
delete [] pTexture;
// - - - - - - - - - -
//setup the shaders
program.Initialise();
program.AddShader(&vertexShader);
program.AddShader(&fragmentShader);
program.Link();
utex = program.GetUniformLocation("tex");
// - - - - - - - - - -
// setup vertex buffers etc
vao = WRender::CreateVertexArrayObject();
eab = WRender::CreateBuffer(WRender::ELEMENTS, WRender::STATIC, sizeof(indices), indices);
ab = WRender::CreateBuffer(WRender::ARRAY, WRender::STATIC, sizeof(vertices), vertices);
WRender::BindVertexArrayObject(vao);
WRender::BindBuffer(WRender::ELEMENTS, eab);
WRender::VertexAttribute va[] = {
{ab, 0, 3, WRender::FLOAT, 0, sizeof(float)*5, 0, 0},
{ab, 3, 2, WRender::FLOAT, 0, sizeof(float)*5, sizeof(float)*3, 0}
};
WRender::SetAttributeFormat( va, 2, 0);
program.Start();
//program.SetTextureUnit(utex, 4);
glEnable(GL_CULL_FACE);
WRender::BindTexture(tex[activeTexture]);
}
// Initialisation: This method only runs once at startup
void Game::Initialise()
{
// Set the clear colour and depth
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClearDepth(1.0f);
/// Create objects
m_pCamera = new CCamera;
m_pSkybox = new CSkybox;
m_pShaderPrograms = new vector <CShaderProgram *>;
m_pSphere = new CSphere;
m_pGrid = new CGrid;
#ifdef _WIN32
m_pFtFont = new CFreeTypeFont;
RECT dimensions = m_gameWindow.GetDimensions();
m_width = dimensions.right - dimensions.left;
m_height = dimensions.bottom - dimensions.top;
#endif
// Set the orthographic and perspective projection matrices based on the image size
m_pCamera->SetOrthographicProjectionMatrix(m_width, m_height);
m_pCamera->SetPerspectiveProjectionMatrix(45.0f, (float) m_width / (float) m_height, 0.5f, 5000.0f);
// Load shaders
vector<CShader> shShaders;
vector<string> sShaderFileNames;
sShaderFileNames.push_back("mainShader.vert");
sShaderFileNames.push_back("mainShader.frag");
sShaderFileNames.push_back("textShader.vert");
sShaderFileNames.push_back("textShader.frag");
sShaderFileNames.push_back("sphereShader.vert");
sShaderFileNames.push_back("sphereShader.frag");
for (int i = 0; i < (int) sShaderFileNames.size(); i++) {
string sExt = sShaderFileNames[i].substr((int) sShaderFileNames[i].size()-4, 4);
int iShaderType;
if (sExt == "vert") iShaderType = GL_VERTEX_SHADER;
else if (sExt == "frag") iShaderType = GL_FRAGMENT_SHADER;
else if (sExt == "geom") iShaderType = GL_GEOMETRY_SHADER;
else if (sExt == "tcnl") iShaderType = GL_TESS_CONTROL_SHADER;
else iShaderType = GL_TESS_EVALUATION_SHADER;
CShader shader;
std::string shaderFile = resourcePath(sShaderFileNames[i], "shaders", "");
shader.LoadShader(shaderFile, iShaderType);
shShaders.push_back(shader);
}
// Create the main shader program
CShaderProgram *pMainProgram = new CShaderProgram;
pMainProgram->CreateProgram();
pMainProgram->AddShaderToProgram(&shShaders[0]);
pMainProgram->AddShaderToProgram(&shShaders[1]);
pMainProgram->LinkProgram();
m_pShaderPrograms->push_back(pMainProgram);
// Create a shader program for fonts
CShaderProgram *pFontProgram = new CShaderProgram;
pFontProgram->CreateProgram();
pFontProgram->AddShaderToProgram(&shShaders[2]);
pFontProgram->AddShaderToProgram(&shShaders[3]);
pFontProgram->LinkProgram();
m_pShaderPrograms->push_back(pFontProgram);
#ifdef _WIN32
m_pFtFont->LoadSystemFont("arial.ttf", 32);
m_pFtFont->SetShaderProgram(pFontProgram);
#endif
// Create the sphere shader program
CShaderProgram *pSphereProgram = new CShaderProgram;
pSphereProgram->CreateProgram();
pSphereProgram->AddShaderToProgram(&shShaders[4]);
pSphereProgram->AddShaderToProgram(&shShaders[5]);
pSphereProgram->LinkProgram();
m_pShaderPrograms->push_back(pSphereProgram);
// Create a sphere
std::string textureDir = resourcePath("", "textures", "");
m_pSphere->Create(textureDir, "dirtpile01.jpg", 35, 35); // Texture downloaded from http://www.psionicgames.com/?page_id=26 on 24 Jan 2013
glEnable(GL_CULL_FACE);
// Create the grid
m_pGrid->Create(500, 500, 15);
}
void CShaderProgram::operator delete(void* pProgram)
{
CShaderProgram* pThis = static_cast< CShaderProgram* >( pProgram );
VKE_ASSERT( pThis, "Can not delete null pointer." );
pThis->Release();
}
