void Init()
{
//init glew
GLenum err = glewInit();
if(err != GLEW_OK) fprintf(stderr,"error : %s\n",glewGetErrorString(err));
//init clear color
glClearColor(0.0f,0.0f,0.0f,1.0f);
//init shader manager
shaderManager.InitializeStockShaders();
//init enable functions
glEnable(GL_DEPTH_TEST);
//init batches
initTriangleBatch();
initFloorBatch();
initMirrorBatch(&mirrorFrontBatch);
//bind floor texture
glGenTextures(1,textures);
glBindTexture(GL_TEXTURE_2D,textures[0]);
LoadBMPTexture("Marble.bmp",GL_LINEAR_MIPMAP_LINEAR,GL_LINEAR,GL_REPEAT);
//create and bind a FBO
glGenFramebuffers(1,&fboName);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER,fboName);
//create depth renderbuffer
glGenRenderbuffers(1,&depthBufferName);
glBindRenderbuffer(GL_RENDERBUFFER,depthBufferName);
glRenderbufferStorage(GL_RENDERBUFFER,GL_DEPTH_COMPONENT32,mirrorWidth,mirrorHeight);
//create reflection texture for mirror
glGenTextures(1,&mirrorTexture);
glBindTexture(GL_TEXTURE_2D,mirrorTexture);
glTexImage2D(GL_TEXTURE_2D,0,GL_RGBA8,mirrorWidth,mirrorHeight,0,GL_RGBA,GL_FLOAT,NULL);
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER,GL_COLOR_ATTACHMENT0,GL_TEXTURE_2D,mirrorTexture,0);
glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER,GL_DEPTH_ATTACHMENT,GL_RENDERBUFFER,depthBufferName);
gltCheckErrors();
glBindFramebuffer(GL_DRAW_FRAMEBUFFER,0);
}
void Init()
{
glClearColor(0.3,0.3,0.3,1.0);
rTest.InitReader("Attack_Big_Center.FBX");
//init openGL functions
glEnable(GL_TEXTURE_2D); // Enable Texture Mapping ( NEW )
glShadeModel(GL_SMOOTH); // Enable Smooth Shading
glClearDepth(1.0f); // Depth Buffer Setup
glEnable(GL_DEPTH_TEST); // Enables Depth Testing
glDepthFunc(GL_LEQUAL); // The Type Of Depth Testing To Do
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); // Really Nice Perspective Calculations
//init as usual
shaderManager.InitializeStockShaders();
//enable
glEnable(GL_DEPTH_TEST);
//move camera
cameraFrame.MoveForward(-1000.0);
//load texture
fbxTexture = LoadBMPTexture("T_Sumo_Enemy_D.bmp");
}
void SetupRenderingContext()
{
int i, j;
// Initialze Shader Manager
shaderManager.InitializeStockShaders();
glEnable(GL_DEPTH_TEST);
//glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClearColor(0.94f, 0.94f, 1.0f, 1.0f); // Blue Sky
/* ------------- */
/* Scene objects */
track.SetupRenderingContext();
theWheel.SetupRenderingContext();
carousel.SetupRenderingContext();
unicorn.SetupRenderingContext();
ostrich.SetupRenderingContext();
turtle.SetupRenderingContext();
/* --------------- */
/* Make the ground */
GLfloat texSize = 50.0f;
groundBatch.Begin(GL_TRIANGLE_FAN, 4, 1);
groundBatch.MultiTexCoord2f(0, 0.0f, 0.0f);
groundBatch.Vertex3f(-0.5f * FLOOR_GRID_WIDTH, FLOOR_HEIGHT, 0.5f * FLOOR_GRID_WIDTH);
groundBatch.MultiTexCoord2f(0, texSize, 0.0f);
groundBatch.Vertex3f(0.5f * FLOOR_GRID_WIDTH, FLOOR_HEIGHT, 0.5f * FLOOR_GRID_WIDTH);
groundBatch.MultiTexCoord2f(0, texSize, texSize);
groundBatch.Vertex3f(0.5f * FLOOR_GRID_WIDTH, FLOOR_HEIGHT, -0.5f * FLOOR_GRID_WIDTH);
groundBatch.MultiTexCoord2f(0, 0.0f, texSize);
groundBatch.Vertex3f(-0.5f * FLOOR_GRID_WIDTH, FLOOR_HEIGHT, -0.5f * FLOOR_GRID_WIDTH);
groundBatch.End();
/* ------------------------------- */
/* Make texture object for ground. */
glGenTextures(1, &groundTexture);
glBindTexture(GL_TEXTURE_2D, groundTexture);
LoadBMPTexture(GROUND_TEXTURE_FILENAME, GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR, GL_REPEAT);
/* ----------------------------- */
/* Make texture objects for cap. */
glGenTextures(NBR_TEXTURE_SETS, capTexture);
for ( i = 0; i < NBR_TEXTURE_SETS; i++ )
{
glBindTexture(GL_TEXTURE_2D, capTexture[i]);
LoadBMPTexture(CAP_TEXTURE_FILENAME[i], GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR, GL_CLAMP_TO_EDGE);
}
/* ------------------------------------------ */
/* Make texture objects for wheel components. */
glGenTextures(NBR_WHEEL_TEXTURES, wheelTexture);
for ( i = 0; i < NBR_WHEEL_TEXTURES; i++ )
{
glBindTexture(GL_TEXTURE_2D, wheelTexture[i]);
LoadBMPTexture(WHEEL_TEXTURE_FILENAME[i], GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR, GL_CLAMP_TO_EDGE);
}
/* ------------------------------------------------ */
/* Make texture objects for Ferris wheel car walls. */
for ( i = 0; i < NBR_TEXTURE_SETS; i++ )
{
glGenTextures(NBR_WALL_TEXTURES, wallTexture[i]);
for ( j = 0; j < NBR_WALL_TEXTURES; j++ )
{
glBindTexture(GL_TEXTURE_2D, wallTexture[i][j]);
LoadBMPTexture(WALL_TEXTURE_FILENAME[i][j], GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR, GL_CLAMP_TO_EDGE);
}
}
/* ---------------------------------------- */
/* Make texture objects for car components. */
glGenTextures(NBR_CAR_TEXTURES, carTexture);
for ( i = 0; i < NBR_CAR_TEXTURES; i++ )
{
glBindTexture(GL_TEXTURE_2D, carTexture[i]);
LoadBMPTexture(CAR_TEXTURE_FILENAME[i], GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR, GL_CLAMP_TO_EDGE);
}
}
///////////////////////////////////////////////////////////////////////////////
// OpenGL related startup code is safe to put here. Load textures, etc.
void SetupRC(void)
{
#ifndef ANGLE
GLenum err = glewInit();
if (GLEW_OK != err)
{
/* Problem: glewInit failed, something is seriously wrong. */
fprintf(stderr, "Error: %s\n", glewGetErrorString(err));
}
#endif
// Initialze Shader Manager
shaderManager.InitializeStockShaders();
glEnable(GL_DEPTH_TEST);
// Black
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
gltMakeTorus(torusBatch, 0.4f, 0.15f, 35, 35);
GLfloat alpha = 0.25f;
floorBatch.Begin(GL_TRIANGLE_FAN, 4, 1);
floorBatch.Color4f(0.0f, 1.0f, 0.0f, alpha);
floorBatch.MultiTexCoord2f(0, 0.0f, 0.0f);
floorBatch.Normal3f(0.0, 1.0f, 0.0f);
floorBatch.Vertex3f(-20.0f, -0.41f, 20.0f);
floorBatch.Color4f(0.0f, 1.0f, 0.0f, alpha);
floorBatch.MultiTexCoord2f(0, 10.0f, 0.0f);
floorBatch.Normal3f(0.0, 1.0f, 0.0f);
floorBatch.Vertex3f(20.0f, -0.41f, 20.0f);
floorBatch.Color4f(0.0f, 1.0f, 0.0f, alpha);
floorBatch.MultiTexCoord2f(0, 10.0f, 10.0f);
floorBatch.Normal3f(0.0, 1.0f, 0.0f);
floorBatch.Vertex3f(20.0f, -0.41f, -20.0f);
floorBatch.Color4f(0.0f, 1.0f, 0.0f, alpha);
floorBatch.MultiTexCoord2f(0, 0.0f, 10.0f);
floorBatch.Normal3f(0.0, 1.0f, 0.0f);
floorBatch.Vertex3f(-20.0f, -0.41f, -20.0f);
floorBatch.End();
glGenTextures(1, textures);
glBindTexture(GL_TEXTURE_2D, textures[0]);
LoadBMPTexture("marble.bmp", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR, GL_REPEAT);
// Create blur program
blurProg = gltLoadShaderPairWithAttributes("blur.vs", "blur.fs", 2,
GLT_ATTRIBUTE_VERTEX, "vVertex", GLT_ATTRIBUTE_TEXTURE0, "texCoord0");
// Create blur textures
glGenTextures(6, blurTextures);
// XXX I don't think this is necessary. Should set texture data to NULL
// Allocate a pixel buffer to initialize textures and PBOs
pixelDataSize = screenWidth*screenHeight*3*sizeof(unsigned int); // XXX This should be unsigned byte
void* data = (void*)malloc(pixelDataSize);
memset(data, 0x00, pixelDataSize);
// Setup 6 texture units for blur effect
// Initialize texture data
for (int i=0; i<6;i++)
{
glActiveTexture(GL_TEXTURE1+i);
glBindTexture(GL_TEXTURE_2D, blurTextures[i]);
#ifndef OPENGL_ES
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
#else
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
#endif
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, screenWidth, screenHeight, 0, GL_RGB, GL_UNSIGNED_BYTE, data);
}
// Alloc space for copying pixels so we dont call malloc on every draw
#ifndef OPENGL_ES
glGenBuffers(1, pixBuffObjs);
glBindBuffer(GL_PIXEL_PACK_BUFFER, pixBuffObjs[0]);
glBufferData(GL_PIXEL_PACK_BUFFER, pixelDataSize, pixelData, GL_DYNAMIC_COPY);
glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
#endif
// Create geometry and a matrix for screen aligned drawing
gltGenerateOrtho2DMat(screenWidth, screenHeight, orthoMatrix, screenQuad);
// Make sure all went well
gltCheckErrors();
}
///////////////////////////////////////////////////////////////////////////////
// OpenGL related startup code is safe to put here. Load textures, etc.
void SetupRC(void)
{
GLenum err = glewInit();
if (GLEW_OK != err)
{
/* Problem: glewInit failed, something is seriously wrong. */
fprintf(stderr, "Error: %s\n", glewGetErrorString(err));
}
glEnable(GL_DEPTH_TEST);
exposure = 1.0f;
// Light Blue
glClearColor(vSkyBlue[0], vSkyBlue[1], vSkyBlue[2], vSkyBlue[3]);
// Load geometry
GLfloat alpha = 0.25f;
floorBatch.Begin(GL_TRIANGLE_FAN, 4, 1);
floorBatch.Color4f(0.0f, 1.0f, 0.0f, alpha);
floorBatch.MultiTexCoord2f(0, 0.0f, 0.0f);
floorBatch.Normal3f(0.0, 1.0f, 0.0f);
floorBatch.Vertex3f(-20.0f, -0.41f, 20.0f);
floorBatch.Color4f(0.0f, 1.0f, 0.0f, alpha);
floorBatch.MultiTexCoord2f(0, 1.00f, 0.0f);
floorBatch.Normal3f(0.0, 1.0f, 0.0f);
floorBatch.Vertex3f(20.0f, -0.41f, 20.0f);
floorBatch.Color4f(0.0f, 1.0f, 0.0f, alpha);
floorBatch.MultiTexCoord2f(0, 1.00f, 1.00f);
floorBatch.Normal3f(0.0, 1.0f, 0.0f);
floorBatch.Vertex3f(20.0f, -0.41f, -20.0f);
floorBatch.Color4f(0.0f, 1.0f, 0.0f, alpha);
floorBatch.MultiTexCoord2f(0, 0.0f, 1.00f);
floorBatch.Normal3f(0.0, 1.0f, 0.0f);
floorBatch.Vertex3f(-20.0f, -0.41f, -20.0f);
floorBatch.End();
windowBatch.Begin(GL_TRIANGLE_FAN, 4, 1);
windowBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
windowBatch.MultiTexCoord2f(0, 0.0f, 0.0f);
windowBatch.Normal3f( 0.0f, 1.0f, 0.0f);
windowBatch.Vertex3f(-1.0f, 0.0f, 0.0f);
windowBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
windowBatch.MultiTexCoord2f(0, 1.0f, 0.0f);
windowBatch.Normal3f(0.0f, 1.0f, 0.0f);
windowBatch.Vertex3f(1.0f, 0.0f, 0.0f);
windowBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
windowBatch.MultiTexCoord2f(0, 1.0f, 1.0f);
windowBatch.Normal3f(0.0f, 1.0f, 0.0f);
windowBatch.Vertex3f(1.0f, 2.0f, 0.0f);
windowBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
windowBatch.MultiTexCoord2f(0, 0.0f, 1.0f);
windowBatch.Normal3f( 0.0f, 1.0f, 0.0f);
windowBatch.Vertex3f(-1.0f, 2.0f, 0.0f);
windowBatch.End();
const float width = 0.2f;
windowBorderBatch.Begin(GL_TRIANGLE_STRIP, 13);
windowBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
windowBorderBatch.Vertex3f(-1.01f, width, 0.01f);
windowBorderBatch.Normal3f(0.0f, 0.0f, 1.0f);
windowBorderBatch.Vertex3f(-1.01f, 0.0f, 0.01f);
windowBorderBatch.Normal3f(0.0f, 0.0f, 1.0f);
windowBorderBatch.Vertex3f(1.01f, width, 0.01f);
windowBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
windowBorderBatch.Vertex3f(1.01f, 0.0f, 0.01f);
windowBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
windowBorderBatch.Vertex3f(1.01-width, 0.0f, 0.01f);
windowBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
windowBorderBatch.Vertex3f(1.01f, 2.0f, 0.01f);
windowBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
windowBorderBatch.Vertex3f(1.01-width, 2.0f, 0.01f);
windowBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
windowBorderBatch.Vertex3f(1.01f, 2.0-width, 0.01f);
windowBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
windowBorderBatch.Vertex3f(-1.01f, 2.f, 0.01f);
windowBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
windowBorderBatch.Vertex3f(-1.01f, 2.0-width, 0.01f);
windowBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
windowBorderBatch.Vertex3f(-1.01+width, 2.f, 0.01f);
windowBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
windowBorderBatch.Vertex3f(-1.01f, 0.0f, 0.01f);
windowBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
windowBorderBatch.Vertex3f(-1.01+width, 0.0f, 0.01f);
windowBorderBatch.End();
const float gridWidth = (float)0.01;
const int gridLineCount = 24;
windowGridBatch.Begin(GL_TRIANGLES, gridLineCount*2*6);
// bottom horizontal
for(int i=0; i<gridLineCount; i++)
{
float offset = 2*((float)(i+1)/(float)(gridLineCount+1));
windowGridBatch.Normal3f( 0.0f, 0.0f, 1.0f);
windowGridBatch.Vertex3f(-1.0f, offset+gridWidth, 0.01f);
windowGridBatch.Normal3f(0.0f, 0.0f, 1.0f);
windowGridBatch.Vertex3f(-1.0f, offset-gridWidth, 0.01f);
windowGridBatch.Normal3f(0.0f, 0.0f, 1.0f);
windowGridBatch.Vertex3f(1.0f, offset-gridWidth, 0.01f);
windowGridBatch.Normal3f(0.0f, 0.0f, 1.0f);
windowGridBatch.Vertex3f(1.0f,offset-gridWidth, 0.01f);
windowGridBatch.Normal3f(0.0f, 0.0f, 1.0f);
windowGridBatch.Vertex3f(1.0f, offset+gridWidth, 0.01f);
windowGridBatch.Normal3f( 0.0f, 0.0f, 1.0f);
windowGridBatch.Vertex3f(-1.0f, offset+gridWidth, 0.01f);
}
// Verticals
for(int i=0; i<gridLineCount; i++)
{
float offset = 2*((float)(i+1)/(float)(gridLineCount+1)) - 1.0;
windowGridBatch.Normal3f( 0.0f, 0.0f, 1.0f);
windowGridBatch.Vertex3f(offset+gridWidth, 0.0f, 0.01f);
windowGridBatch.Normal3f(0.0f, 0.0f, 1.0f);
windowGridBatch.Vertex3f(offset-gridWidth, 0.0f, 0.01f);
windowGridBatch.Normal3f(0.0f, 0.0f, 1.0f);
windowGridBatch.Vertex3f(offset-gridWidth, 2.0f, 0.01f);
windowGridBatch.Normal3f(0.0f, 0.0f, 1.0f);
windowGridBatch.Vertex3f(offset-gridWidth, 2.0f, 0.01f);
windowGridBatch.Normal3f(0.0f, 0.0f, 1.0f);
windowGridBatch.Vertex3f(offset+gridWidth, 2.0, 0.01f);
windowGridBatch.Normal3f( 0.0f, 0.0f, 1.0f);
windowGridBatch.Vertex3f(offset+gridWidth, 0.0f, 0.01f);
}
windowGridBatch.End();
glGenTextures(1, textures);
glBindTexture(GL_TEXTURE_2D, textures[0]);
LoadBMPTexture("marble.bmp", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR, GL_REPEAT);
// Setup HDR render texture
glGenTextures(1, hdrTextures);
glBindTexture(GL_TEXTURE_2D_MULTISAMPLE, hdrTextures[0]);
glTexImage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, 8, GL_RGB16F, screenWidth, screenHeight, GL_FALSE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
// Attach HDR texture to fbo
// Create and bind an FBO
glGenFramebuffers(1,hdrFBO);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, hdrFBO[0]);
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, hdrTextures[0], 0);
// Create window texture
glGenTextures(1, &windowTexture);
glBindTexture(GL_TEXTURE_2D, windowTexture);
GLuint texWidth = 0;
GLuint texHeight = 0;
// Load HDR image from EXR file
LoadOpenEXRImage("window.exr", windowTexture, texWidth, texHeight);
// Load flat color shader
flatColorProg = gltLoadShaderPairWithAttributes("basic.vs", "color.fs", 3,
GLT_ATTRIBUTE_VERTEX, "vVertex",
GLT_ATTRIBUTE_NORMAL, "vNormal",
GLT_ATTRIBUTE_TEXTURE0, "vTexCoord0");
glBindFragDataLocation(flatColorProg, 0, "oColor");
glBindFragDataLocation(flatColorProg, 1, "oBright");
glLinkProgram(flatColorProg);
// Load texture replace shader
texReplaceProg = gltLoadShaderPairWithAttributes("basic.vs", "tex_replace.fs", 3,
GLT_ATTRIBUTE_VERTEX, "vVertex",
GLT_ATTRIBUTE_NORMAL, "vNormal",
GLT_ATTRIBUTE_TEXTURE0, "vTexCoord0");
glBindFragDataLocation(texReplaceProg, 0, "oColor");
glBindFragDataLocation(texReplaceProg, 1, "oBright");
glLinkProgram(texReplaceProg);
// Load bloom shader
hdrResolve = gltLoadShaderPairWithAttributes("basic.vs", "hdr_exposure.fs", 3,
GLT_ATTRIBUTE_VERTEX, "vVertex",
GLT_ATTRIBUTE_NORMAL, "vNormal",
GLT_ATTRIBUTE_TEXTURE0, "vTexCoord0");
glBindFragDataLocation(hdrResolve, 0, "oColor");
glLinkProgram(hdrResolve);
// Uncomment the line below to get the correct behavior.
floorBatch.Draw();
// Get the location of each multisample sample
int sampleCount = 0;
glGetIntegerv(GL_SAMPLES, &sampleCount);
float positions[64]; // Enough for at least 32 samples
for(int i =0; i < sampleCount; i++)
{
glGetMultisamplefv(GL_SAMPLE_POSITION, i, &positions[i*2]);
}
// Limit sample count to 8x
//assert(sampleCount >= 8);
sampleCount = 8;
float invertedSampleDistances[8];
// The maxDist is used for doing the distance inversion
// You could use the actual max dist a sample could be, but that
// would mean that sample would receive a weighting of 0, use 1.0 instead.
//float maxDist = sqrt(0.5*0.5*2);
float maxDist = 1.0f;
// calculate the distance of each sample from the center,
// then invert it so that samples closer to the center recieve more weight
for(int i=0; i<8; i++)
{
double xDist = positions[i*2 ]-0.5;
double yDist = positions[i*2+1]-0.5;
invertedSampleDistances[i] = maxDist - sqrt(xDist*xDist + yDist*yDist);
}
// zero out sample weights array
for(int i=0; i<8; i++)
{
for(int j=0; j<8; j++)
{
sampleWeights[i][j] = 0.0f;
}
}
// First array is easy, 1 sample so that samples weight is 1
sampleWeights[0][0] = 1.0f;
// Add up the distances to get the total used for calculating weights
for(int i=1; i<8; i++)
{
float totalWeight = 0.0f;
for(int j=0; j<=i; j++)
totalWeight += invertedSampleDistances[j];
// Invert to get the factor used for each sample, the sum of all sample weights is always 1.0
float perSampleFactor = 1 / totalWeight;
for(int j=0; j<=i; j++)
sampleWeights[i][j] = invertedSampleDistances[j] * perSampleFactor;
}
// Setup a texture buffer object for holding the sample weights
glGenBuffers(1, &sampleWeightBuf);
glBindBuffer(GL_TEXTURE_BUFFER_ARB, sampleWeightBuf);
glBufferData(GL_TEXTURE_BUFFER_ARB, sizeof(float)*8, sampleWeights, GL_DYNAMIC_DRAW);
glBindBuffer(GL_TEXTURE_BUFFER_ARB, 0);
// Load the texBO into texture 1
glActiveTexture(GL_TEXTURE1);
glGenTextures(1, &texBOTexture);
glBindTexture(GL_TEXTURE_BUFFER_ARB, texBOTexture);
glTexBufferARB(GL_TEXTURE_BUFFER_ARB, GL_R32F, sampleWeightBuf);
glActiveTexture(GL_TEXTURE0);
// Reset framebuffer binding
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
}
///////////////////////////////////////////////////////////////////////////////
// OpenGL related startup code is safe to put here. Load textures, etc.
void SetupRC()
{
#ifndef ANGLE
GLenum err = glewInit();
if (GLEW_OK != err)
{
/* Problem: glewInit failed, something is seriously wrong. */
fprintf(stderr, "Error: %s\n", glewGetErrorString(err));
}
#endif
// Initialze Shader Manager
shaderManager.InitializeStockShaders();
glEnable(GL_DEPTH_TEST);
// Black
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
#if defined __APPLE__ || defined ANGLE
ninja.LoadFromSBM("ninja.sbm",
GLT_ATTRIBUTE_VERTEX,
GLT_ATTRIBUTE_NORMAL,
GLT_ATTRIBUTE_TEXTURE0);
#else
ninja.LoadFromSBM("../../../Src/Models/Ninja/ninja.sbm",
GLT_ATTRIBUTE_VERTEX,
GLT_ATTRIBUTE_NORMAL,
GLT_ATTRIBUTE_TEXTURE0);
#endif
gltMakeTorus(torusBatch, 0.4f, 0.15f, 35, 35);
gltMakeSphere(sphereBatch, 0.1f, 26, 13);
GLfloat alpha = 0.25f;
floorBatch.Begin(GL_TRIANGLE_FAN, 4, 1);
floorBatch.Color4f(0.0f, 1.0f, 0.0f, alpha);
floorBatch.MultiTexCoord2f(0, 0.0f, 0.0f);
floorBatch.Normal3f(0.0, 1.0f, 0.0f);
floorBatch.Vertex3f(-20.0f, -0.41f, 20.0f);
floorBatch.Color4f(0.0f, 1.0f, 0.0f, alpha);
floorBatch.MultiTexCoord2f(0, 10.0f, 0.0f);
floorBatch.Normal3f(0.0, 1.0f, 0.0f);
floorBatch.Vertex3f(20.0f, -0.41f, 20.0f);
floorBatch.Color4f(0.0f, 1.0f, 0.0f, alpha);
floorBatch.MultiTexCoord2f(0, 10.0f, 10.0f);
floorBatch.Normal3f(0.0, 1.0f, 0.0f);
floorBatch.Vertex3f(20.0f, -0.41f, -20.0f);
floorBatch.Color4f(0.0f, 1.0f, 0.0f, alpha);
floorBatch.MultiTexCoord2f(0, 0.0f, 10.0f);
floorBatch.Normal3f(0.0, 1.0f, 0.0f);
floorBatch.Vertex3f(-20.0f, -0.41f, -20.0f);
floorBatch.End();
glGenTextures(1, textures);
glBindTexture(GL_TEXTURE_2D, textures[0]);
LoadBMPTexture("marble.bmp", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR, GL_REPEAT);
glGenTextures(1, ninjaTex);
glBindTexture(GL_TEXTURE_2D, ninjaTex[0]);
#if defined __APPLE__
LoadBMPTexture("NinjaComp.bmp", GL_LINEAR, GL_LINEAR, GL_CLAMP);
#elif defined ANGLE
LoadBMPTexture("NinjaComp.bmp", GL_LINEAR, GL_LINEAR, GL_CLAMP_TO_EDGE);
#else
LoadBMPTexture("../../../Src/Models/Ninja/NinjaComp.bmp", GL_LINEAR, GL_LINEAR, GL_CLAMP);
#endif
glGenFramebuffers(1,&fboName);
// Create depth renderbuffer
glGenRenderbuffers(1, &depthBufferName);
glBindRenderbuffer(GL_RENDERBUFFER, depthBufferName);
#ifndef ANGLE
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT32, screenWidth, screenHeight);
#else
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT16, screenWidth, screenHeight);
#endif
// Create 3 color renderbuffers
glGenRenderbuffers(3, renderBufferNames);
glBindRenderbuffer(GL_RENDERBUFFER, renderBufferNames[0]);
glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA8, screenWidth, screenHeight);
glBindRenderbuffer(GL_RENDERBUFFER, renderBufferNames[1]);
glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA8, screenWidth, screenHeight);
glBindRenderbuffer(GL_RENDERBUFFER, renderBufferNames[2]);
glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA8, screenWidth, screenHeight);
// Attach all 4 renderbuffers to FBO
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fboName);
glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, depthBufferName);
glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, renderBufferNames[0]);
#ifndef OPENGL_ES
glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT1, GL_RENDERBUFFER, renderBufferNames[1]);
glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT2, GL_RENDERBUFFER, renderBufferNames[2]);
#endif
// See bind frag location in Chapter 9
processProg = gltLoadShaderPairWithAttributes("multibuffer.vs", "multibuffer_frag_location.fs", 3,
GLT_ATTRIBUTE_VERTEX, "vVertex",
GLT_ATTRIBUTE_NORMAL, "vNormal",
GLT_ATTRIBUTE_TEXTURE0, "texCoord0");
#ifndef OPENGL_ES
glBindFragDataLocation(processProg, 0, "oStraightColor");
glBindFragDataLocation(processProg, 1, "oGreyscale");
glBindFragDataLocation(processProg, 2, "oLumAdjColor");
#endif
glLinkProgram(processProg);
#ifndef OPENGL_ES
// Create 3 new buffer objects
glGenBuffers(3,texBO);
glGenTextures(1, &texBOTexture);
int count = 0;
float* fileData = 0;
// Load first texBO with a tangent-like curve, 1024 values
fileData = LoadFloatData("LumTan.data", &count);
if (count > 0)
{
glBindBuffer(GL_TEXTURE_BUFFER_ARB, texBO[0]);
glBufferData(GL_TEXTURE_BUFFER_ARB, sizeof(float)*count, fileData, GL_STATIC_DRAW);
delete fileData;
}
// Load second texBO with a sine-like curve, 1024 values
fileData = LoadFloatData("LumSin.data", &count);
if (count > 0)
{
glBindBuffer(GL_TEXTURE_BUFFER_ARB, texBO[1]);
glBufferData(GL_TEXTURE_BUFFER_ARB, sizeof(float)*count, fileData, GL_STATIC_DRAW);
delete fileData;
}
// Load third texBO with a linear curve, 1024 values
fileData = LoadFloatData("LumLinear.data", &count);
if (count > 0)
{
glBindBuffer(GL_TEXTURE_BUFFER_ARB, texBO[2]);
glBufferData(GL_TEXTURE_BUFFER_ARB, sizeof(float)*count, fileData, GL_STATIC_DRAW);
delete fileData;
}
// Load the Tan ramp first
glBindBuffer(GL_TEXTURE_BUFFER_ARB, 0);
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_BUFFER_ARB, texBOTexture);
glTexBufferARB(GL_TEXTURE_BUFFER_ARB, GL_R32F, texBO[0]);
#endif
glActiveTexture(GL_TEXTURE0);
// Reset framebuffer binding
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
// Make sure all went well
gltCheckErrors();
}
///////////////////////////////////////////////////////////////////////////////
// OpenGL related startup code is safe to put here. Load textures, etc.
void SetupRC(void)
{
GLenum err = glewInit();
if (GLEW_OK != err)
{
/* Problem: glewInit failed, something is seriously wrong. */
fprintf(stderr, "Error: %s\n", glewGetErrorString(err));
}
// Initialze Shader Manager
shaderManager.InitializeStockShaders();
glEnable(GL_DEPTH_TEST);
gltMakeCylinder(bckgrndCylBatch, 4.0, 4.0, 5.2, 1024, 1);
gltMakeDisk(diskBatch, 0.0, 1.5, 40, 10);
glass1Batch.Begin(GL_TRIANGLE_FAN, 4, 1);
glass1Batch.Vertex3f(-1.0f, -1.0f, 0.0f);
glass1Batch.Vertex3f( 1.0f, -1.0f, 0.0f);
glass1Batch.Vertex3f( 1.0f, 1.0f, 0.0f);
glass1Batch.Vertex3f(-1.0f, 1.0f, 0.0f);
glass1Batch.End();
glass2Batch.Begin(GL_TRIANGLE_FAN, 4, 1);
glass2Batch.Vertex3f( 0.0f, 1.0f, 0.0f);
glass2Batch.Vertex3f( 1.0f, 0.0f, 0.0f);
glass2Batch.Vertex3f( 0.0f, -1.0f, 0.0f);
glass2Batch.Vertex3f(-1.0f, 0.0f, 0.0f);
glass2Batch.End();
glass3Batch.Begin(GL_TRIANGLE_FAN, 3, 1);
glass3Batch.Vertex3f( 0.0f, 1.0f, 0.0f);
glass3Batch.Vertex3f( 1.0f, -1.0f, 0.0f);
glass3Batch.Vertex3f(-1.0f, -1.0f, 0.0f);
glass3Batch.End();
glass4Batch.Begin(GL_TRIANGLE_FAN, 4, 1);
glass4Batch.Vertex3f(-1.0f, 1.0f, 0.0f);
glass4Batch.Vertex3f( 1.0f, 0.5f, 0.0f);
glass4Batch.Vertex3f( 1.0f, -1.0f, 0.0f);
glass4Batch.Vertex3f(-1.0f, -0.5f, 0.0f);
glass4Batch.End();
glGenTextures(2, textures);
glBindTexture(GL_TEXTURE_2D, textures[0]);
LoadBMPTexture("marble.bmp", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR, GL_REPEAT);
glBindTexture(GL_TEXTURE_2D, textures[1]);
LoadBMPTexture("start_line.bmp", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR, GL_REPEAT);
// Create and bind an FBO
glGenFramebuffers(1,&msFBO);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, msFBO);
// Create depth texture
glGenTextures(1, &depthTextureName);
glBindTexture(GL_TEXTURE_2D_MULTISAMPLE, depthTextureName);
glTexImage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, 8, GL_DEPTH_COMPONENT24, screenWidth, screenHeight, GL_FALSE);
// Setup HDR render texture
glGenTextures(1, msTexture);
glBindTexture(GL_TEXTURE_2D_MULTISAMPLE, msTexture[0]);
glTexImage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, 8, GL_RGBA8, screenWidth, screenHeight, GL_FALSE);
// Create and bind an FBO
glGenFramebuffers(1, &msFBO);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, msFBO);
// Attach texture to first color attachment and the depth RBO
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D_MULTISAMPLE, msTexture[0], 0);
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D_MULTISAMPLE, depthTextureName, 0);
// Reset framebuffer binding
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
// Load oit resolve shader
oitResolve = gltLoadShaderPairWithAttributes("basic.vs", "oitResolve.fs", 3,
GLT_ATTRIBUTE_VERTEX, "vVertex",
GLT_ATTRIBUTE_NORMAL, "vNormal",
GLT_ATTRIBUTE_TEXTURE0, "vTexCoord0");
glBindFragDataLocation(oitResolve, 0, "oColor");
glLinkProgram(oitResolve);
// Load multisample resolve shader
msResolve = gltLoadShaderPairWithAttributes("basic.vs", "msResolve.fs", 3,
GLT_ATTRIBUTE_VERTEX, "vVertex",
GLT_ATTRIBUTE_NORMAL, "vNormal",
GLT_ATTRIBUTE_TEXTURE0, "vTexCoord0");
glBindFragDataLocation(msResolve, 0, "oColor");
glLinkProgram(msResolve);
// Make sure all went well
gltCheckErrors(oitResolve);
gltCheckErrors(msResolve);
int numMasks = 0;
glGetIntegerv(GL_MAX_SAMPLE_MASK_WORDS, &numMasks);
}
///////////////////////////////////////////////////////////////////////////////
// OpenGL related startup code is safe to put here. Load textures, etc.
void SetupRC()
{
GLenum err = glewInit();
if (GLEW_OK != err)
{
/* Problem: glewInit failed, something is seriously wrong. */
fprintf(stderr, "Error: %s\n", glewGetErrorString(err));
}
// Initialze Shader Manager
shaderManager.InitializeStockShaders();
glEnable(GL_DEPTH_TEST);
// Black
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
gltMakeTorus(torusBatch, 0.4f, 0.15f, 35, 35);
gltMakeSphere(sphereBatch, 0.1f, 26, 13);
gltMakeCylinder(cylinderBatch,0.3f, 0.2f, 1.0, 10,10);
GLfloat alpha = 0.25f;
floorBatch.Begin(GL_TRIANGLE_FAN, 4, 1);
floorBatch.Color4f(0.0f, 1.0f, 0.0f, alpha);
floorBatch.MultiTexCoord2f(0, 0.0f, 0.0f);
floorBatch.Normal3f(0.0, 1.0f, 0.0f);
floorBatch.Vertex3f(-20.0f, -0.41f, 20.0f);
floorBatch.Color4f(0.0f, 1.0f, 0.0f, alpha);
floorBatch.MultiTexCoord2f(0, 10.0f, 0.0f);
floorBatch.Normal3f(0.0, 1.0f, 0.0f);
floorBatch.Vertex3f(20.0f, -0.41f, 20.0f);
floorBatch.Color4f(0.0f, 1.0f, 0.0f, alpha);
floorBatch.MultiTexCoord2f(0, 10.0f, 10.0f);
floorBatch.Normal3f(0.0, 1.0f, 0.0f);
floorBatch.Vertex3f(20.0f, -0.41f, -20.0f);
floorBatch.Color4f(0.0f, 1.0f, 0.0f, alpha);
floorBatch.MultiTexCoord2f(0, 0.0f, 10.0f);
floorBatch.Normal3f(0.0, 1.0f, 0.0f);
floorBatch.Vertex3f(-20.0f, -0.41f, -20.0f);
floorBatch.End();
mirrorBatch.Begin(GL_TRIANGLE_FAN, 4, 1);
mirrorBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
mirrorBatch.MultiTexCoord2f(0, 0.0f, 0.0f);
mirrorBatch.Normal3f( 0.0f, 1.0f, 0.0f);
mirrorBatch.Vertex3f(-1.0f, 0.0f, 0.0f);
mirrorBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
mirrorBatch.MultiTexCoord2f(0, 1.0f, 0.0f);
mirrorBatch.Normal3f(0.0f, 1.0f, 0.0f);
mirrorBatch.Vertex3f(1.0f, 0.0f, 0.0f);
mirrorBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
mirrorBatch.MultiTexCoord2f(0, 1.0f, 1.0f);
mirrorBatch.Normal3f(0.0f, 1.0f, 0.0f);
mirrorBatch.Vertex3f(1.0f, 2.0f, 0.0f);
mirrorBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
mirrorBatch.MultiTexCoord2f(0, 0.0f, 1.0f);
mirrorBatch.Normal3f( 0.0f, 1.0f, 0.0f);
mirrorBatch.Vertex3f(-1.0f, 2.0f, 0.0f);
mirrorBatch.End();
mirrorBorderBatch.Begin(GL_TRIANGLE_STRIP, 13);
mirrorBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
mirrorBorderBatch.Vertex3f(-1.0f, 0.1f, 0.01f);
mirrorBorderBatch.Normal3f(0.0f, 0.0f, 1.0f);
mirrorBorderBatch.Vertex3f(-1.0f, 0.0f, 0.01f);
mirrorBorderBatch.Normal3f(0.0f, 0.0f, 1.0f);
mirrorBorderBatch.Vertex3f(1.0f, 0.1f, 0.01f);
mirrorBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
mirrorBorderBatch.Vertex3f(1.0f, 0.0f, 0.01f);
mirrorBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
mirrorBorderBatch.Vertex3f(0.9f, 0.0f, 0.01f);
mirrorBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
mirrorBorderBatch.Vertex3f(1.0f, 2.0f, 0.01f);
mirrorBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
mirrorBorderBatch.Vertex3f(0.9f, 2.0f, 0.01f);
mirrorBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
mirrorBorderBatch.Vertex3f(1.0f, 1.9f, 0.01f);
mirrorBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
mirrorBorderBatch.Vertex3f(-1.0f, 2.f, 0.01f);
mirrorBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
mirrorBorderBatch.Vertex3f(-1.0f, 1.9f, 0.01f);
mirrorBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
mirrorBorderBatch.Vertex3f(-0.9f, 2.f, 0.01f);
mirrorBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
mirrorBorderBatch.Vertex3f(-1.0f, 0.0f, 0.01f);
mirrorBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
mirrorBorderBatch.Vertex3f(-0.9f, 0.0f, 0.01f);
mirrorBorderBatch.End();
glGenTextures(1, textures);
glBindTexture(GL_TEXTURE_2D, textures[0]);
LoadBMPTexture("marble.bmp", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR, GL_REPEAT);
// Create and bind an FBO
glGenFramebuffers(1,&fboName);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fboName);
// Create depth renderbuffer
glGenRenderbuffers(1, &depthBufferName);
glBindRenderbuffer(GL_RENDERBUFFER, depthBufferName);
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT32, mirrorTexWidth, mirrorTexHeight);
// Create the reflection texture
glGenTextures(1, &mirrorTexture);
glBindTexture(GL_TEXTURE_2D, mirrorTexture);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, mirrorTexWidth, mirrorTexHeight, 0, GL_RGBA, GL_FLOAT, NULL);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
// Attach texture to first color attachment and the depth RBO
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mirrorTexture, 0);
glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, depthBufferName);
// Make sure all went well
gltCheckErrors();
// Reset framebuffer binding
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
}
