OpenGLMesh* RenderingCore::PrivateInterface::CreateMesh(const char* file)
{
OpenGLMesh* mesh = 0;
if( !GLCreateMeshFromQM(file, 0, 0, &mesh) )
mesh = 0;
return mesh;
}
bool InitScene()
{
SetWindowText(hwnd, TITLE);
Quadron::qGLExtensions::QueryFeatures(hdc);
if( !Quadron::qGLExtensions::ARB_shader_storage_buffer_object )
return false;
#ifdef _DEBUG
if( Quadron::qGLExtensions::ARB_debug_output )
{
glDebugMessageControl(GL_DONT_CARE, GL_DONT_CARE, GL_DONT_CARE, 0, 0, GL_TRUE);
glDebugMessageCallback(ReportGLError, 0);
}
#endif
glClearColor(0.0f, 0.125f, 0.3f, 1.0f);
//glClearColor(1, 1, 1, 1);
glClearDepth(1.0);
glEnable(GL_CULL_FACE);
glCullFace(GL_BACK);
glDepthFunc(GL_LEQUAL);
glEnable(GL_DEPTH_TEST);
screenquad = new OpenGLScreenQuad();
// load objects
if( !GLCreateMeshFromQM("../media/meshes/cube.qm", &box) )
{
MYERROR("Could not load box");
return false;
}
if( !GLCreateMeshFromQM("../media/meshes/dragon.qm", &dragon) )
{
MYERROR("Could not load dragon");
return false;
}
if( !GLCreateMeshFromQM("../media/meshes/happy1.qm", &buddha) )
{
MYERROR("Could not load buddha");
return false;
}
// create texture
glGenTextures(1, &white);
glBindTexture(GL_TEXTURE_2D, white);
{
unsigned int wondercolor = 0xffffffff;
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, &wondercolor);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
}
// create buffers
size_t headsize = 16; // start, count, pad, pad
size_t nodesize = 16; // color, depth, next, pad
size_t numlists = screenwidth * screenheight;
glGenBuffers(1, &headbuffer);
glGenBuffers(1, &nodebuffer);
glGenBuffers(1, &counterbuffer);
glBindBuffer(GL_SHADER_STORAGE_BUFFER, headbuffer);
glBufferData(GL_SHADER_STORAGE_BUFFER, numlists * headsize, 0, GL_STATIC_DRAW);
glBindBuffer(GL_SHADER_STORAGE_BUFFER, nodebuffer);
glBufferData(GL_SHADER_STORAGE_BUFFER, numlists * 4 * nodesize, 0, GL_STATIC_DRAW); // 120 MB @ 1080p
glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0);
glBindBuffer(GL_ATOMIC_COUNTER_BUFFER, counterbuffer);
glBufferData(GL_ATOMIC_COUNTER_BUFFER, sizeof(GLuint), 0, GL_DYNAMIC_DRAW);
glBindBuffer(GL_ATOMIC_COUNTER_BUFFER, 0);
// calculate scene bounding box
OpenGLAABox tmpbox;
float world[16];
float tmp[16];
GLMatrixIdentity(world);
for( int i = 0; i < numobjects; ++i )
{
const SceneObject& obj = objects[i];
// scaling * rotation * translation
GLMatrixScaling(tmp, obj.scale[0], obj.scale[1], obj.scale[2]);
GLMatrixRotationAxis(world, obj.angle, 0, 1, 0);
GLMatrixMultiply(world, tmp, world);
GLMatrixTranslation(tmp, obj.position[0], obj.position[1], obj.position[2]);
GLMatrixMultiply(world, world, tmp);
if( obj.type == 0 )
tmpbox = box->GetBoundingBox();
else if( obj.type == 1 )
tmpbox = dragon->GetBoundingBox();
else if( obj.type == 2 )
tmpbox = buddha->GetBoundingBox();
tmpbox.TransformAxisAligned(world);
scenebox.Add(tmpbox.Min);
scenebox.Add(tmpbox.Max);
}
// head pointer initializer
if( !GLCreateEffectFromFile("../media/shadersGL/basic2D.vert", 0, "../media/shadersGL/initheadpointers.frag", &init) )
{
MYERROR("Could not load initializer shader");
return false;
}
// renderer shader
if( !GLCreateEffectFromFile("../media/shadersGL/basic2D.vert", 0, "../media/shadersGL/renderfragments.frag", &render) )
{
MYERROR("Could not load rendering shader");
return false;
}
// fragment collector shader
if( !GLCreateEffectFromFile("../media/shadersGL/collectfragments.vert", 0, "../media/shadersGL/collectfragments.frag", &collect) )
{
MYERROR("Could not load collector shader");
return false;
}
float angles[2] = { 0.25f, -0.7f };
cameraangle = angles;
return true;
}
bool InitScene()
{
SetWindowText(hwnd, TITLE);
Quadron::qGLExtensions::QueryFeatures(hdc);
hascompute = (Quadron::qGLExtensions::ARB_compute_shader && Quadron::qGLExtensions::ARB_shader_storage_buffer_object);
#ifdef _DEBUG
if( Quadron::qGLExtensions::ARB_debug_output )
{
glDebugMessageControl(GL_DONT_CARE, GL_DONT_CARE, GL_DONT_CARE, 0, 0, GL_TRUE);
glDebugMessageCallback(ReportGLError, 0);
}
#endif
glClearColor(0.0f, 0.125f, 0.3f, 1.0f);
glClearDepth(1.0);
glEnable(GL_CULL_FACE);
glCullFace(GL_BACK);
glDepthFunc(GL_LEQUAL);
glEnable(GL_DEPTH_TEST);
// load objects
if( !GLCreateMeshFromQM("../media/meshes/teapot.qm", &teapot) )
{
MYERROR("Could not load teapot");
return false;
}
if( !GLCreateMeshFromQM("../media/meshes/cube.qm", &box) )
{
MYERROR("Could not load box");
return false;
}
// calculate scene bounding box
OpenGLAABox tmpbox;
float world[16];
float tmp[16];
GLMatrixIdentity(world);
for( int i = 0; i < numobjects; ++i )
{
const SceneObject& obj = objects[i];
// scaling * rotation * translation
GLMatrixScaling(tmp, obj.scale[0], obj.scale[1], obj.scale[2]);
GLMatrixRotationAxis(world, obj.angle, 0, 1, 0);
GLMatrixMultiply(world, tmp, world);
GLMatrixTranslation(tmp, obj.position[0], obj.position[1], obj.position[2]);
GLMatrixMultiply(world, world, tmp);
if( obj.type == 0 )
tmpbox = box->GetBoundingBox();
else if( obj.type == 1 )
tmpbox = teapot->GetBoundingBox();
tmpbox.TransformAxisAligned(world);
scenebox.Add(tmpbox.Min);
scenebox.Add(tmpbox.Max);
}
// create render targets
framebuffer = new OpenGLFramebuffer(screenwidth, screenheight);
framebuffer->AttachTexture(GL_COLOR_ATTACHMENT0, GLFMT_A16B16G16R16F);
framebuffer->AttachTexture(GL_DEPTH_ATTACHMENT, GLFMT_D32F);
if( !framebuffer->Validate() )
return false;
shadowmap = new OpenGLFramebuffer(SHADOWMAP_SIZE, SHADOWMAP_SIZE);
shadowmap->AttachTexture(GL_COLOR_ATTACHMENT0, GLFMT_G32R32F, GL_LINEAR);
shadowmap->AttachRenderbuffer(GL_DEPTH_ATTACHMENT, GLFMT_D24S8);
if( !shadowmap->Validate() )
return false;
blurredshadow = new OpenGLFramebuffer(SHADOWMAP_SIZE, SHADOWMAP_SIZE);
blurredshadow->AttachTexture(GL_COLOR_ATTACHMENT0, GLFMT_G32R32F, GL_LINEAR);
if( !blurredshadow->Validate() )
return false;
screenquad = new OpenGLScreenQuad();
// textures
if( !GLCreateTextureFromFile("../media/textures/wood2.jpg", true, &texture1) )
{
MYERROR("Could not load texture");
return false;
}
if( !GLCreateTextureFromFile("../media/textures/marble2.png", true, &texture2) )
{
MYERROR("Could not load texture");
return false;
}
if( !GLCreateTextureFromFile("../media/textures/static_sky.jpg", true, &texture3, GLTEX_FLIPX) )
{
MYERROR("Could not load texture");
return false;
}
// create buffers
workgroupsx = (screenwidth + (screenwidth % 16)) / 16;
workgroupsy = (screenheight + (screenheight % 16)) / 16;
size_t numtiles = workgroupsx * workgroupsy;
size_t headsize = 16; // start, count, pad, pad
size_t nodesize = 16; // light index, next, pad, pad
if( hascompute )
{
glGenBuffers(1, &headbuffer);
glGenBuffers(1, &nodebuffer);
glGenBuffers(1, &lightbuffer);
glGenBuffers(1, &counterbuffer);
glBindBuffer(GL_SHADER_STORAGE_BUFFER, headbuffer);
glBufferData(GL_SHADER_STORAGE_BUFFER, numtiles * headsize, 0, GL_STATIC_DRAW);
glBindBuffer(GL_SHADER_STORAGE_BUFFER, nodebuffer);
glBufferData(GL_SHADER_STORAGE_BUFFER, numtiles * nodesize * 1024, 0, GL_STATIC_DRAW); // 4 MB
glBindBuffer(GL_SHADER_STORAGE_BUFFER, lightbuffer);
glBufferData(GL_SHADER_STORAGE_BUFFER, NUM_LIGHTS * sizeof(LightParticle), 0, GL_DYNAMIC_DRAW);
UpdateParticles(0, true);
glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0);
glBindBuffer(GL_ATOMIC_COUNTER_BUFFER, counterbuffer);
glBufferData(GL_ATOMIC_COUNTER_BUFFER, sizeof(GLuint), 0, GL_DYNAMIC_DRAW);
glBindBuffer(GL_ATOMIC_COUNTER_BUFFER, 0);
}
// load effects
if( !GLCreateEffectFromFile("../media/shadersGL/basic2D.vert", 0, "../media/shadersGL/basic2D.frag", &basic2D) )
{
MYERROR("Could not load basic 2D shader");
return false;
}
if( !GLCreateEffectFromFile("../media/shadersGL/basic2D.vert", 0, "../media/shadersGL/boxblur3x3.frag", &boxblur3x3) )
{
MYERROR("Could not load blur shader");
return false;
}
if( !GLCreateEffectFromFile("../media/shadersGL/basic2D.vert", 0, "../media/shadersGL/gammacorrect.frag", &gammacorrect) )
{
MYERROR("Could not load gamma correction shader");
return false;
}
if( !GLCreateEffectFromFile("../media/shadersGL/shadowmap_variance.vert", 0, "../media/shadersGL/shadowmap_variance.frag", &varianceshadow) )
{
MYERROR("Could not load shadowmap shader");
return false;
}
if( !GLCreateEffectFromFile("../media/shadersGL/blinnphong_variance.vert", 0, "../media/shadersGL/blinnphong_variance.frag", &shadowedlight) )
{
MYERROR("Could not load shadowed light shader");
return false;
}
if( !GLCreateEffectFromFile("../media/shadersGL/ambient.vert", 0, "../media/shadersGL/ambient.frag", &ambient) )
{
MYERROR("Could not load ambient shader");
return false;
}
if( hascompute )
{
// light accumulation shader
if( !GLCreateEffectFromFile("../media/shadersGL/lightaccum.vert", 0, "../media/shadersGL/lightaccum.frag", &lightaccum) )
{
MYERROR("Could not load light accumulation shader");
return false;
}
// light culling shader
if( !GLCreateComputeProgramFromFile("../media/shadersGL/lightcull.comp", &lightcull) )
{
MYERROR("Could not load light culling shader");
return false;
}
lightcull->SetInt("depthSampler", 0);
lightcull->SetInt("numLights", NUM_LIGHTS);
lightaccum->SetInt("sampler0", 0);
}
float white[] = { 1, 1, 1, 1 };
shadowedlight->SetVector("matSpecular", white);
shadowedlight->SetInt("sampler0", 0);
shadowedlight->SetInt("sampler1", 1);
boxblur3x3->SetInt("sampler0", 0);
basic2D->SetInt("sampler0", 0);
gammacorrect->SetInt("sampler0", 0);
float angles[2] = { 0.25f, -0.7f };
cameraangle = angles;
return true;
}
bool InitScene()
{
SetWindowText(hwnd, TITLE);
Quadron::qGLExtensions::QueryFeatures();
isGL4_4 = (Quadron::qGLExtensions::GLVersion >= Quadron::qGLExtensions::GL_4_4);
// setup opengl
glClearColor(0.0f, 0.125f, 0.3f, 1.0f);
glClearDepth(1.0);
glEnable(GL_CULL_FACE);
glCullFace(GL_BACK);
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LESS);
if( !GLCreateMeshFromQM("../media/meshes/teapot.qm", &mesh) )
{
MYERROR("Could not load mesh");
return false;
}
if( !GLCreateEffectFromFile("../media/shadersGL/blinnphong.vert", 0, "../media/shadersGL/blinnphong.frag", &effect1) )
{
MYERROR("Could not load 'blinnphong' effect");
return false;
}
if( !GLCreateEffectFromFile("../media/shadersGL/uniformbuffer.vert", 0, "../media/shadersGL/uniformbuffer.frag", &effect2) )
{
MYERROR("Could not load 'uniformbuffer' effect");
return false;
}
if( !GLCreateEffectFromFile("../media/shadersGL/basic2D.vert", 0, "../media/shadersGL/basic2D.frag", &basic2D) )
{
MYERROR("Could not load 'basic2D' shader");
return false;
}
// create framebuffer
framebuffer = new OpenGLFramebuffer(screenwidth, screenheight);
framebuffer->AttachTexture(GL_COLOR_ATTACHMENT0, GLFMT_A8B8G8R8, GL_NEAREST);
framebuffer->AttachRenderbuffer(GL_DEPTH_STENCIL_ATTACHMENT, GLFMT_D24S8);
if( !framebuffer->Validate() )
{
MYERROR("Framebuffer validation failed");
return false;
}
// create uniform buffer
effect2->SetUniformBlockBinding("VertexUniformData", 0);
effect2->SetUniformBlockBinding("FragmentUniformData", 1);
// simple uniform buffer
glGenBuffers(1, &uniformbuffer1);
glBindBuffer(GL_UNIFORM_BUFFER, uniformbuffer1);
glBufferData(GL_UNIFORM_BUFFER, sizeof(EffectUniformBlock), NULL, GL_DYNAMIC_DRAW);
glBindBuffer(GL_UNIFORM_BUFFER, 0);
// uniform ringbuffer
glGenBuffers(1, &uniformbuffer2);
glBindBuffer(GL_UNIFORM_BUFFER, uniformbuffer2);
glBufferData(GL_UNIFORM_BUFFER, UNIFORM_COPIES * sizeof(EffectUniformBlock), NULL, GL_DYNAMIC_DRAW);
glBindBuffer(GL_UNIFORM_BUFFER, 0);
if( isGL4_4 ) {
// uniform storage buffer
glGenBuffers(1, &uniformbuffer3);
glBindBuffer(GL_UNIFORM_BUFFER, uniformbuffer3);
glBufferStorage(GL_UNIFORM_BUFFER, UNIFORM_COPIES * sizeof(EffectUniformBlock), NULL, GL_DYNAMIC_STORAGE_BIT|GL_MAP_WRITE_BIT|GL_MAP_PERSISTENT_BIT|GL_MAP_COHERENT_BIT);
glBindBuffer(GL_UNIFORM_BUFFER, 0);
}
memset(&uniformDTO, 0, sizeof(uniformDTO));
// render text
GLCreateTexture(512, 512, 1, GLFMT_A8B8G8R8, &text1);
if( isGL4_4 ) {
glBindBuffer(GL_UNIFORM_BUFFER, uniformbuffer3);
persistentdata = (EffectUniformBlock*)glMapBufferRange(GL_UNIFORM_BUFFER, 0, UNIFORM_COPIES * sizeof(EffectUniformBlock), GL_MAP_WRITE_BIT|GL_MAP_PERSISTENT_BIT|GL_MAP_COHERENT_BIT);
glBindBuffer(GL_UNIFORM_BUFFER, 0);
assert(persistentdata != 0);
GLRenderText(
"1 - glUniformXX\n2 - UBO with glBufferSubData\n3 - UBO with glMapBufferRange\n4 - UBO with glFenceSync\n5 - UBO with persistent mapping",
text1, 512, 512);
} else {
GLRenderText(
"1 - glUniformXX\n2 - UBO with glBufferSubData\n3 - UBO with glMapBufferRange\n4 - UBO with glFenceSync",
text1, 512, 512);
}
screenquad = new OpenGLScreenQuad();
// setup cameras
basiccamera.SetAspect((float)screenwidth / screenheight);
basiccamera.SetFov(GLDegreesToRadians(80));
basiccamera.SetClipPlanes(0.1f, 30.0f);
basiccamera.SetDistance(10.0f);
return true;
}
bool InitScene()
{
SetWindowText(hwnd, TITLE);
Quadron::qGLExtensions::QueryFeatures();
// setup opengl
//glClearColor(0.4f, 0.58f, 0.93f, 1.0f);
glClearColor(0.0f, 0.125f, 0.3f, 1.0f);
glClearDepth(1.0);
glEnable(GL_CULL_FACE);
glCullFace(GL_BACK);
glDepthFunc(GL_LEQUAL);
glEnable(GL_DEPTH_TEST);
bool ok = GLCreateMeshFromQM("../media/meshes/teapot.qm", &mesh);
if( !ok )
{
MYERROR("Could not load mesh");
return false;
}
// shader
GLint length;
GLint success = GL_FALSE;
program = glCreateProgram();
vertexshader = glCreateShader(GL_VERTEX_SHADER);
pixelshader = glCreateShader(GL_FRAGMENT_SHADER);
length = strlen(vscode);
glShaderSource(vertexshader, 1, &vscode, &length);
glCompileShader(vertexshader);
glGetShaderiv(vertexshader, GL_COMPILE_STATUS, &success);
if( success != GL_TRUE )
{
MYERROR("InitScene(): Could not compile vertex shader");
return false;
}
length = strlen(pscode);
glShaderSource(pixelshader, 1, &pscode, &length);
glCompileShader(pixelshader);
glGetShaderiv(vertexshader, GL_COMPILE_STATUS, &success);
if( success != GL_TRUE )
{
MYERROR("InitScene(): Could not compile pixel shader");
return false;
}
glAttachShader(program, vertexshader);
glAttachShader(program, pixelshader);
glLinkProgram(program);
glGetProgramiv(program, GL_LINK_STATUS, &success);
if( success != GL_TRUE )
{
MYERROR("InitScene(): Could not link shader");
return false;
}
glBindAttribLocation(program, GLDECLUSAGE_POSITION, "my_Position");
glBindAttribLocation(program, GLDECLUSAGE_NORMAL, "my_Normal");
glLinkProgram(program);
glGetProgramiv(program, GL_LINK_STATUS, &success);
if( success != GL_TRUE )
{
MYERROR("InitScene(): Could not link shader");
return false;
}
glUseProgram(program);
{
uniform_lightPos = glGetUniformLocation(program, "lightPos");
uniform_eyePos = glGetUniformLocation(program, "eyePos");
uniform_matWorld = glGetUniformLocation(program, "matWorld");
uniform_matViewProj = glGetUniformLocation(program, "matViewProj");
}
glUseProgram(0);
return true;
}
