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 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 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);
}
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();
}
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]);
}
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();
}
}