///////////////////////////////////////////////////////////////////////////////////////
// Get Window coordinates, discard Z...
void m3dProjectXY(M3DVector2f vPointOut, const M3DMatrix44f mModelView, const M3DMatrix44f mProjection, const int iViewPort[4], const M3DVector3f vPointIn)
{
M3DVector4f vBack, vForth;
memcpy(vBack, vPointIn, sizeof(float)*3);
vBack[3] = 1.0f;
m3dTransformVector4(vForth, vBack, mModelView);
m3dTransformVector4(vBack, vForth, mProjection);
if(!m3dCloseEnough(vBack[3], 0.0f, 0.000001f)) {
float div = 1.0f / vBack[3];
vBack[0] *= div;
vBack[1] *= div;
//vBack[2] *= div;
}
vPointOut[0] = float(iViewPort[0])+(1.0f+float(vBack[0]))*float(iViewPort[2])/2.0f;
vPointOut[1] = float(iViewPort[1])+(1.0f+float(vBack[1]))*float(iViewPort[3])/2.0f;
// This was put in for Grand Tour... I think it's right.
// .... please report any bugs
if(iViewPort[0] != 0) // Cast to float is expensive... avoid if posssible
vPointOut[0] -= float(iViewPort[0]);
if(iViewPort[1] != 0)
vPointOut[1] -= float(iViewPort[1]);
}
///////////////////////////////////////////////////////////////////////////////////////
// Get window coordinates, we also want Z....
void m3dProjectXYZ(M3DVector3f vPointOut, const M3DMatrix44f mModelView, const M3DMatrix44f mProjection, const int iViewPort[4], const M3DVector3f vPointIn)
{
M3DVector4f vBack, vForth;
memcpy(vBack, vPointIn, sizeof(float)*3);
vBack[3] = 1.0f;
m3dTransformVector4(vForth, vBack, mModelView);
m3dTransformVector4(vBack, vForth, mProjection);
if(!m3dCloseEnough(vBack[3], 0.0f, 0.000001f)) {
float div = 1.0f / vBack[3];
vBack[0] *= div;
vBack[1] *= div;
vBack[2] *= div;
}
vPointOut[0] = float(iViewPort[0])+(1.0f+float(vBack[0]))*float(iViewPort[2])/2.0f;
vPointOut[1] = float(iViewPort[1])+(1.0f+float(vBack[1]))*float(iViewPort[3])/2.0f;
if(iViewPort[0] != 0) // Cast to float is expensive... avoid if posssible
vPointOut[0] -= float(iViewPort[0]);
if(iViewPort[1] != 0)
vPointOut[1] -= float(iViewPort[1]);
vPointOut[2] = vBack[2];
}
///////////////////////////////////////////////////////////////////////////////////////
// Get window coordinates, we also want Z....
void m3dProjectXYZ(const M3DMatrix44f mModelView, const M3DMatrix44f mProjection, const int iViewPort[4], const M3DVector3f vPointIn, M3DVector3f vPointOut)
{
M3DVector4f vBack, vForth;
memcpy(vBack, vPointIn, sizeof(float)*3);
vBack[3] = 1.0f;
m3dTransformVector4(vForth, vBack, mModelView);
m3dTransformVector4(vBack, vForth, mProjection);
if(!m3dCloseEnough(vBack[3], 0.0f, 0.000001f)) {
float div = 1.0f / vBack[3];
vBack[0] *= div;
vBack[1] *= div;
vBack[2] *= div;
}
vPointOut[0] = vBack[0] * 0.5f + 0.5f;
vPointOut[1] = vBack[1] * 0.5f + 0.5f;
vPointOut[2] = vBack[2] * 0.5f + 0.5f;
/* Map x,y to viewport */
vPointOut[0] = (vPointOut[0] * iViewPort[2]) + iViewPort[0];
vPointOut[1] = (vPointOut[1] * iViewPort[3]) + iViewPort[1];
}
void RenderScene()
{
static GLfloat vSunColor[] = { 1.0f, 0.0f, 0.0f, 1.0f };
static GLfloat vEarthColor[] = { 0.0f, 0.0f, 1.0f, 1.0f };
static GLfloat vMoonColor[] = { 1.0f, 1.0f, 0.0f, 1.0f };
static GLfloat vFloorColor[] = { 0.0f, 1.0f, 0.0f, 1.0f};
static CStopWatch rotTimer;
float yRot = rotTimer.GetElapsedSeconds() * 60.0f;
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
modelViewMatrix.PushMatrix();
M3DMatrix44f mCamera;
cameraFrame.GetCameraMatrix(mCamera);
modelViewMatrix.PushMatrix(mCamera);
M3DVector4f vLightPos = { 0.0f, 10.0f, 5.0f, 1.0f };
M3DVector4f vLightEyePos;
m3dTransformVector4(vLightEyePos, vLightPos, mCamera);
shaderManager.UseStockShader(GLT_SHADER_FLAT,
transformPipeline.GetModelViewProjectionMatrix(),
vFloorColor);
floorBatch.Draw();
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
modelViewMatrix.Translate(0.0f, 0.0f, -3.5f);
modelViewMatrix.PushMatrix();
modelViewMatrix.Rotate(yRot, 0.0f, 1.0f, 0.0f);
shaderManager.UseStockShader(GLT_SHADER_FLAT,
transformPipeline.GetModelViewProjectionMatrix(), vSunColor);
sunSphereBatch.Draw();
modelViewMatrix.PopMatrix();
modelViewMatrix.Rotate(yRot * -2.0f, 0.0f, 1.0f, 0.0f);
modelViewMatrix.Translate(0.8f, 0.0f, 0.0f);
shaderManager.UseStockShader(GLT_SHADER_FLAT,
transformPipeline.GetModelViewProjectionMatrix(), vEarthColor);
earthSphereBatch.Draw();
modelViewMatrix.Rotate(yRot * -4.0f, 0.0f, 1.0f, 0.0f);
modelViewMatrix.Translate(0.4f, 0.0f, 0.0f);
shaderManager.UseStockShader(GLT_SHADER_FLAT,
transformPipeline.GetModelViewProjectionMatrix(), vMoonColor);
moonSphereBatch.Draw();
modelViewMatrix.PopMatrix();
modelViewMatrix.PopMatrix();
modelViewMatrix.PopMatrix();
glutSwapBuffers();
glutPostRedisplay();
}
///////////////////////////////////////////////////////////////////////////////
// Draw the scene
//
void DrawWorld(GLfloat yRot)
{
M3DMatrix44f mCamera;
modelViewMatrix.GetMatrix(mCamera);
// Need light position relative to the Camera
M3DVector4f vLightTransformed;
m3dTransformVector4(vLightTransformed, vLightPos, mCamera);
// Draw the light source as a small white unshaded sphere
modelViewMatrix.PushMatrix();
modelViewMatrix.Translatev(vLightPos);
shaderManager.UseStockShader(GLT_SHADER_FLAT, transformPipeline.GetModelViewProjectionMatrix(), vWhite);
sphereBatch.Draw();
modelViewMatrix.PopMatrix();
// Draw stuff relative to the camera
modelViewMatrix.PushMatrix();
modelViewMatrix.Translate(0.0f, 0.2f, -2.5f);
modelViewMatrix.Rotate(yRot, 0.0f, 1.0f, 0.0f);
shaderManager.UseStockShader(GLT_SHADER_POINT_LIGHT_DIFF,
modelViewMatrix.GetMatrix(),
transformPipeline.GetProjectionMatrix(),
vLightTransformed, vGreen, 0);
torusBatch.Draw();
modelViewMatrix.PopMatrix();
}
void DrawScene()
{
modelViewMatrix.PushMatrix();
M3DMatrix44f mCamera;
cameraFrame.GetCameraMatrix(mCamera);
// Transform the light position into eye coordinates
M3DVector4f vLightPos = { LIGHT_POSITION[0], LIGHT_POSITION[1], LIGHT_POSITION[2], LIGHT_POSITION[3] };
M3DVector4f vLightEyePos;
m3dTransformVector4(vLightEyePos, vLightPos, mCamera);
/* ------------ */
/* FERRIS WHEEL */
modelViewMatrix.PushMatrix();
/* Position the ferris wheel appropriately. */
modelViewMatrix.Translate(FERRIS_WHEEL_POSITION[0], FERRIS_WHEEL_POSITION[1], FERRIS_WHEEL_POSITION[2]);
/* Apply the Translation to this entire block of objects */
modelViewMatrix.PushMatrix();
//theWheel.Draw(modelViewMatrix, shaderManager, transformPipeline, vLightEyePos, capTexture, wheelTexture, wallTexture, carTexture, currentTextureIndex);
modelViewMatrix.PopMatrix();
modelViewMatrix.PopMatrix();
/* -------------- */
/* ROLLER COASTER */
modelViewMatrix.PushMatrix();
modelViewMatrix.Translate(0.0, 0.0, -10.0);
//track.Draw(modelViewMatrix, shaderManager, transformPipeline, vLightEyePos);
modelViewMatrix.PopMatrix();
/* -------- */
/* CAROUSEL */
modelViewMatrix.PushMatrix();
//modelViewMatrix.Translate(3.0f, 0.0f, -3.0f);
modelViewMatrix.Translate(0.0f, 0.0f, -3.0f);
//carousel.Draw(modelViewMatrix, shaderManager, transformPipeline, vLightEyePos);
modelViewMatrix.PopMatrix();
modelViewMatrix.PushMatrix();
modelViewMatrix.Translate(0.0f, 0.0f, -2.0f);
//unicorn.Draw(modelViewMatrix, shaderManager, transformPipeline, vLightEyePos);
//ostrich.Draw(modelViewMatrix, shaderManager, transformPipeline, vLightEyePos);
turtle.Draw(modelViewMatrix, shaderManager, transformPipeline, vLightEyePos);
modelViewMatrix.PopMatrix();
modelViewMatrix.PopMatrix();
}
void drawTorus(GLfloat yRot)
{
M3DMatrix44f mCamera;
M3DVector4f vLightTransform;
modelViewMatrix.GetMatrix(mCamera);
m3dTransformVector4(vLightTransform,vLightPosition,mCamera);
modelViewMatrix.PushMatrix();
modelViewMatrix.Translate(0.0,0.5,-1.0);
modelViewMatrix.Rotate(yRot,0.0,1.0,0.0);
shaderManager.UseStockShader(GLT_SHADER_POINT_LIGHT_DIFF,
modelViewMatrix.GetMatrix(),
transformPipeline.GetProjectionMatrix(),
vLightTransform,vGreen,0);
torusBatch.Draw();
modelViewMatrix.PopMatrix();
}
///////////////////////////////////////////////////////////////////////////////
// Draw the scene
//
void DrawWorld(GLfloat yRot)
{
M3DMatrix44f mCamera;
modelViewMatrix.GetMatrix(mCamera);
// Need light position relative to the Camera
M3DVector4f vLightTransformed;
m3dTransformVector4(vLightTransformed, vLightPos, mCamera);
// Draw the light source as a small white unshaded sphere
modelViewMatrix.PushMatrix();
modelViewMatrix.Translatev(vLightPos);
if(bUseFBO)
UseProcessProgram(vLightPos, vWhite, -1);
else
shaderManager.UseStockShader(GLT_SHADER_FLAT, transformPipeline.GetModelViewProjectionMatrix(), vWhite);
sphereBatch.Draw();
modelViewMatrix.PopMatrix();
// Draw stuff relative to the camera
modelViewMatrix.PushMatrix();
modelViewMatrix.Translate(0.0f, 0.2f, -2.5f);
modelViewMatrix.PushMatrix();
modelViewMatrix.Rotate(yRot, 0.0f, 1.0f, 0.0f);
modelViewMatrix.Translate(0.0, (GLfloat)-0.60, 0.0);
modelViewMatrix.Scale((GLfloat)0.02, (GLfloat)0.006, (GLfloat)0.02);
glBindTexture(GL_TEXTURE_2D, ninjaTex[0]);
if(bUseFBO)
{
UseProcessProgram(vLightTransformed, vWhite, 0);
}
else
{
shaderManager.UseStockShader(GLT_SHADER_TEXTURE_REPLACE, transformPipeline.GetModelViewProjectionMatrix(), 0);
}
ninja.Render(0,0);
modelViewMatrix.PopMatrix();
modelViewMatrix.PopMatrix();
}
void Shader::bind(GLMatrixStack *pMVM, GLGeometryTransform *pGLGTin){
//default lighting
M3DVector4f vEyeLight,vLight = { 128.0f, 128.0f, -128.0f ,1.0f};
M3DMatrix44f *mx;
mx = theCam->getMx();
m3dTransformVector4(vEyeLight, vLight, *mx);
GLfloat vAmbC[] = { 0.4f, 0.4f, 0.4f, 1.0f };
GLfloat vDifC[] = { 1.0f, 1.0f, 1.0f, 1.0f};
GLfloat vSpecC[] = { 1.0f, 1.0f, 1.0f, 1.0f };
glBindTexture(GL_TEXTURE_2D,myTex[0]);
glUseProgram(me);
glUniform4fv(locAmbient, 1, vAmbC);
glUniform4fv(locDiffuse, 1, vDifC);
glUniform4fv(locSpecular, 1, vSpecC);
glUniform3fv(locLight, 1, vEyeLight);
glUniformMatrix4fv(locMVP, 1, GL_FALSE, pGLGTin->GetModelViewProjectionMatrix());
glUniformMatrix4fv(locMV, 1, GL_FALSE, pGLGTin->GetModelViewMatrix());
glUniformMatrix3fv(locNM, 1, GL_FALSE, pGLGTin->GetNormalMatrix());
glUniform1i(locTexture, 0);
}
///////////////////////////////////////////////////////////////////////////////
// Render a frame. The owning framework is responsible for buffer swaps,
// flushes, etc.
void RenderScene(void)
{
static CStopWatch animationTimer;
float yRot = animationTimer.GetElapsedSeconds() * 60.0f;
// MoveCamera();
modelViewMatrix.PushMatrix();
M3DMatrix44f mCamera;
cameraFrame.GetCameraMatrix(mCamera);
modelViewMatrix.MultMatrix(mCamera);
GLfloat vFloorColor[4] = { 1.0f, 1.0f, 1.0f, 1.0f };
if(bUseFBO)
{
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fboName);
#ifndef OPENGL_ES
glDrawBuffers(3, fboBuffs);
#endif
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Need light position relative to the Camera
M3DVector4f vLightTransformed;
m3dTransformVector4(vLightTransformed, vLightPos, mCamera);
UseProcessProgram(vLightTransformed, vFloorColor, 0);
}
else
{
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
#ifndef OPENGL_ES
glDrawBuffers(1, windowBuff);
#endif
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
shaderManager.UseStockShader(GLT_SHADER_TEXTURE_MODULATE, transformPipeline.GetModelViewProjectionMatrix(), vFloorColor, 0);
}
glBindTexture(GL_TEXTURE_2D, textures[0]); // Marble
floorBatch.Draw();
DrawWorld(yRot);
modelViewMatrix.PopMatrix();
if(bUseFBO)
{
// Direct drawing to the window
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
#ifndef OPENGL_ES
glDrawBuffers(1, windowBuff);
#endif
glViewport(0, 0, screenWidth, screenHeight);
#ifndef OPENGL_ES
// Source buffer reads from the framebuffer object
glBindFramebuffer(GL_READ_FRAMEBUFFER, fboName);
// Copy greyscale output to the left half of the screen
glReadBuffer(GL_COLOR_ATTACHMENT1);
glBlitFramebuffer(0, 0, screenWidth/2, screenHeight,
0, 0, screenWidth/2, screenHeight,
GL_COLOR_BUFFER_BIT, GL_NEAREST );
// Copy the luminance adjusted color to the right half of the screen
glReadBuffer(GL_COLOR_ATTACHMENT2);
glBlitFramebuffer(screenWidth/2, 0, screenWidth, screenHeight,
screenWidth/2, 0, screenWidth, screenHeight,
GL_COLOR_BUFFER_BIT, GL_NEAREST );
// Scale the unaltered image to the upper right of the screen
glReadBuffer(GL_COLOR_ATTACHMENT0);
glBlitFramebuffer(0, 0, screenWidth, screenHeight,
(int)(screenWidth *(0.8)), (int)(screenHeight*(0.8)),
screenWidth, screenHeight,
GL_COLOR_BUFFER_BIT, GL_LINEAR );
glBindTexture(GL_TEXTURE_2D, 0);
#endif
}
// Do the buffer Swap
glutSwapBuffers();
// Do it again
glutPostRedisplay();
}
void DrawSongAndDance(GLfloat yRot) // Called to draw dancing objects
{
static GLfloat vWhite[] = { 1.0f, 1.0f, 1.0f, 1.0f };
static GLfloat vLightPos[] = { 0.0f, 3.0f, 0.0f, 1.0f };
// Get the light position in eye space
M3DVector4f vLightTransformed;
M3DMatrix44f mCamera;
modelViewMatrix.GetMatrix(mCamera);
m3dTransformVector4(vLightTransformed, vLightPos, mCamera);
// Draw the light source
modelViewMatrix.PushMatrix();
modelViewMatrix.Translatev(vLightPos);
shaderManager.UseStockShader(GLT_SHADER_FLAT,
transformPipeLine.GetModelViewProjectionMatrix(),
vWhite);
sphereBatch.Draw();
modelViewMatrix.PopMatrix();
glBindTexture(GL_TEXTURE_2D, uiTextures[2]);
for (int i = 0; i < NUM_SPHERES; i++) {
modelViewMatrix.PushMatrix();
modelViewMatrix.MultMatrix(spheres[i]);
shaderManager.UseStockShader(GLT_SHADER_TEXTURE_POINT_LIGHT_DIFF,
modelViewMatrix.GetMatrix(),
transformPipeLine.GetProjectionMatrix(),
vLightTransformed,
vWhite,
0);
sphereBatch.Draw();
modelViewMatrix.PopMatrix();
}
// Song and dance
modelViewMatrix.Translate(0.0f, 0.2f, -2.5f);
modelViewMatrix.PushMatrix(); // Saves the translated origin
modelViewMatrix.Rotate(yRot, 0.0f, 1.0f, 0.0f);
// Draw stuff relative to the camera
glBindTexture(GL_TEXTURE_2D, uiTextures[1]);
shaderManager.UseStockShader(GLT_SHADER_TEXTURE_POINT_LIGHT_DIFF,
modelViewMatrix.GetMatrix(),
transformPipeLine.GetProjectionMatrix(),
vLightTransformed,
vWhite,
0);
torusBatch.Draw();
modelViewMatrix.PopMatrix(); // Erased the rotate
modelViewMatrix.Rotate(yRot * -2.0f, 0.0f, 1.0f, 0.0f);
modelViewMatrix.Translate(0.8f, 0.0f, 0.0f);
glBindTexture(GL_TEXTURE_2D, uiTextures[2]);
shaderManager.UseStockShader(GLT_SHADER_TEXTURE_POINT_LIGHT_DIFF,
modelViewMatrix.GetMatrix(),
transformPipeLine.GetProjectionMatrix(),
vLightTransformed,
vWhite,
0);
sphereBatch.Draw();
}
// called to draw dancing objects
static void DrawSongAndDance(GLfloat yRot)
{
static GLfloat vWhite[] = { 1.0f, 1.0f, 1.0f, 1.0f };
static GLfloat vLightPos[] = { 0.0f, 3.0f, 0.0f, 1.0f };
// get the light position in eye space
M3DMatrix44f mCamera;
modelViewMatrix.GetMatrix(mCamera);
M3DVector4f vLightTransformed;
m3dTransformVector4(vLightTransformed, vLightPos, mCamera);
// draw the light source
modelViewMatrix.push();
modelViewMatrix.moveTo(vLightPos);
shaderManager.useStockShader(GLT_SHADER_FLAT, transformPipeline.GetMVPMatrix(),
vWhite);
sphereBatch.draw();
modelViewMatrix.pop();
glBindTexture(GL_TEXTURE_2D, uiTextures[2]);
for (int i = 0; i < NUM_SPHERES; ++i) {
modelViewMatrix.push();
modelViewMatrix.MultMatrix(spheres[i]);
shaderManager.useStockShader(GLT_SHADER_TEXTURE_POINT_LIGHT_DIFF,
modelViewMatrix.GetMatrix(),
transformPipeline.GetProjectionMatrix(),
vLightTransformed,
vWhite,
0);
sphereBatch.draw();
modelViewMatrix.pop();
}
// song and dance
modelViewMatrix.moveTo(0.0f, 0.2f, -2.5f);
modelViewMatrix.push(); // save the translated origin
modelViewMatrix.rotateTo(yRot, 0.0f, 1.0f, 0.0f);
// draw stuff relative to the camera
glBindTexture(GL_TEXTURE_2D, uiTextures[1]);
shaderManager.useStockShader(GLT_SHADER_TEXTURE_POINT_LIGHT_DIFF,
modelViewMatrix.GetMatrix(),
transformPipeline.GetProjectionMatrix(),
vLightTransformed,
vWhite,
0);
torusBatch.draw();
modelViewMatrix.pop(); // erased the rotate
modelViewMatrix.rotateTo(yRot * -2.0f, 0.0f, 1.0f, 0.0f);
modelViewMatrix.moveTo(0.8f, 0.0f, 0.0f);
glBindTexture(GL_TEXTURE_2D, uiTextures[2]);
shaderManager.useStockShader(GLT_SHADER_TEXTURE_POINT_LIGHT_DIFF,
modelViewMatrix.GetMatrix(),
transformPipeline.GetProjectionMatrix(),
vLightTransformed,
vWhite,
0);
sphereBatch.draw();
}
void renderScene()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
modelViewM.PushMatrix();
M3DMatrix44f cameraM;
cameraFrame.GetCameraMatrix(cameraM);
modelViewM.MultMatrix(cameraM);
M3DVector4f lightPos = {0.0f, 10.0f, 5.0f, 1.0f};
M3DVector4f lightEyePos;
m3dTransformVector4(lightEyePos, lightPos, cameraM);
GLfloat whiteLight[] = {1.0f, 1.0f, 1.0f, 1.0f};
modelViewM.PushMatrix();
modelViewM.Translate(0, 0, -3);
M3DMatrix44f objectM;
objectFrame.GetMatrix(objectM);
modelViewM.MultMatrix(objectM);
glBindTexture(GL_TEXTURE_2D, textureID[0]);
#if 0
shaderManager.UseStockShader(GLT_SHADER_TEXTURE_POINT_LIGHT_DIFF,
pipelineTransform.GetModelViewMatrix(),
pipelineTransform.GetProjectionMatrix(),
lightEyePos, whiteLight, 0);
#else
shaderManager.UseStockShader(GLT_SHADER_TEXTURE_REPLACE,
pipelineTransform.GetModelViewProjectionMatrix(),
0);
#endif
cuboidBatch.Draw();
modelViewM.PopMatrix();
static CStopWatch timer;
float angle = timer.GetElapsedSeconds() * 120;
modelViewM.Translate(0.5f, 0.6f, -5);
modelViewM.Rotate(angle, 1, 1, 1);
modelViewM.Scale(0.5/cuboidLength, 0.3/cuboidHeigth, 0.4/cuboidWidth);
glBindTexture(GL_TEXTURE_2D, textureID[1]);
#if 0
shaderManager.UseStockShader(GLT_SHADER_TEXTURE_POINT_LIGHT_DIFF,
pipelineTransform.GetModelViewMatrix(),
pipelineTransform.GetProjectionMatrix(),
lightEyePos, whiteLight, 0);
#else
shaderManager.UseStockShader(GLT_SHADER_TEXTURE_REPLACE,
pipelineTransform.GetModelViewProjectionMatrix(),
0);
#endif
cuboidBatch.Draw();
modelViewM.PopMatrix();
glutSwapBuffers();
glutPostRedisplay();
}
void renderScene()
{
//Colours:
static GLfloat vDarkRed[] = {0.0f, 0.396f, 0.702f, 1.0f};
static GLfloat vDarkGrey[] = {0.2f, 0.2f, 0.2f, 1.0f};
static CStopWatch inputTimer;
//Clear buffers
glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
//Beginning push:
modelViewStack.PushMatrix();
//Camera matrix:
M3DMatrix44f mCamera;
cameraFrame.GetCameraMatrix(mCamera);
modelViewStack.PushMatrix(mCamera);
modelViewStack.Rotate(-15.0f, 1.0f, 0.0f, 0.0f);
if (screenshot)
{
cameraFrame.SetForwardVector(0, 0, -1);
cameraFrame.SetUpVector(0, 1, 0);
cameraFrame.GetCameraMatrix(mCamera);
modelViewStack.PushMatrix(mCamera);
}
//Light source:
static M3DVector4f vAmbient = {0.1f, 0.1f, 0.1f, 1.0f};
static M3DVector4f vLightPos = {4.0f, -6.5f, 10.0f, 1.0f};
static M3DVector4f vLightEyePos;
m3dTransformVector4(vLightEyePos, vLightPos, mCamera);
//Draw floor and grid:
glEnable(GL_MULTISAMPLE);
cRoom.draw(shaderManager, tPipeline, modelViewStack);
// Highlight grid
hlGrid.draw(shaderManager, tPipeline, modelViewStack);
//Draw desks:
stuDesks.drawAll(shaderManager, tPipeline, vLightEyePos, modelViewStack, vAmbient); //Draw polygon version of desks
glDisable(GL_MULTISAMPLE); //Disable multisampling (to use AA)
glEnable(GL_BLEND); //Enable blending
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glPolygonOffset(-1.0f, -1.0f);
glEnable(GL_POLYGON_OFFSET_LINE); //Render wireframe in front of polygon
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); //Wireframe mode
glEnable(GL_LINE_SMOOTH); //Enable AA
stuDesks.drawAll(shaderManager, tPipeline, vLightEyePos, modelViewStack, vAmbient, vDarkGrey); //Draw wireframe version of desks
//Reset stuff as they were before:
glDisable(GL_LINE_SMOOTH);
glDisable(GL_POLYGON_OFFSET_LINE);
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
glDisable(GL_BLEND);
//End cam push:
modelViewStack.PopMatrix();
//End pop:
modelViewStack.PopMatrix();
if (!screenshot)
{
newDeskButton.draw(W_WIDTH, W_HEIGHT);
removeDeskButton.draw(W_WIDTH, W_HEIGHT);
exportButton.draw(W_WIDTH, W_HEIGHT);
}
glutSwapBuffers();
if (screenshot)
{
char name[38];
sprintf(name, "Exports/screenshot%d.tga", expCounter);
gltWriteTGA(name);
counterSaver();
modelViewStack.PopMatrix();
screenshot = false;
}
glutPostRedisplay();
handleInput(inputTimer);
}
/**
* @brief Called to draw scene
*/
void RenderScene()
{
// Color values
static GLfloat vSunColor[] = { 1.0f, 0.0f, 0.0f, 1.0f };
static GLfloat vEarthColor[] = { 0.0f, 0.0f, 1.0f, 1.0f };
static GLfloat vMoonColor[] = { 1.0f, 1.0f, 0.0f, 1.0f };
static GLfloat vFloorColor[] = { 0.0f, 0.64f, 0.0f, 1.0f};
// Time Based animation
static CStopWatch rotTimer;
float yRot = rotTimer.GetElapsedSeconds() * 60.0f;
// Clear the color and depth buffers
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Save the current modelview matrix (the identity matrix)
modelViewMatrix.PushMatrix();
M3DMatrix44f mCamera;
cameraFrame.GetCameraMatrix(mCamera);
modelViewMatrix.PushMatrix(mCamera);
// Transform the light position into eye coordinates
M3DVector4f vLightPos = { 0.0f, 10.0f, 5.0f, 1.0f };
M3DVector4f vLightEyePos;
m3dTransformVector4(vLightEyePos, vLightPos, mCamera);
// Draw the floor
shaderManager.UseStockShader(GLT_SHADER_FLAT,
transformPipeline.GetModelViewProjectionMatrix(),
vFloorColor);
floorBatch.Draw();
// Draw the spinning Sun
modelViewMatrix.Translate(0.0f, 0.0f, -3.5f);
// Save the Translation
modelViewMatrix.PushMatrix();
// Apply a rotation and draw the Sun
modelViewMatrix.Rotate(yRot, 0.0f, 1.0f, 0.0f);
shaderManager.UseStockShader(GLT_SHADER_POINT_LIGHT_DIFF,
transformPipeline.GetModelViewMatrix(),
transformPipeline.GetProjectionMatrix(), vLightEyePos, vSunColor);
sunSphereBatch.Draw();
modelViewMatrix.PopMatrix(); // "Erase" the Rotation from before
// Apply another rotation, followed by a translation, then draw the Earth
modelViewMatrix.Rotate(yRot * -2.0f, 0.0f, 1.0f, 0.0f);
modelViewMatrix.Translate(0.8f, 0.0f, 0.0f);
shaderManager.UseStockShader(GLT_SHADER_POINT_LIGHT_DIFF,
transformPipeline.GetModelViewMatrix(),
transformPipeline.GetProjectionMatrix(), vLightEyePos, vEarthColor);
earthSphereBatch.Draw();
// Apply another rotation, followed by a translation, then draw the Moon
modelViewMatrix.Rotate(yRot * -4.0f, 0.0f, 1.0f, 0.0f);
modelViewMatrix.Translate(0.4f, 0.0f, 0.0f);
shaderManager.UseStockShader(GLT_SHADER_POINT_LIGHT_DIFF,
transformPipeline.GetModelViewMatrix(),
transformPipeline.GetProjectionMatrix(), vLightEyePos, vMoonColor);
moonSphereBatch.Draw();
// Restore the previous modleview matrix (the identity matrix)
modelViewMatrix.PopMatrix();
modelViewMatrix.PopMatrix();
modelViewMatrix.PopMatrix();
// Do the buffer Swap
glutSwapBuffers();
// Tell GLUT to do it again
glutPostRedisplay();
}
// main rendering loop
void RenderScene(void){
static CStopWatch rotTimer;
float yRot = rotTimer.GetElapsedSeconds() * 60.0f;
GLfloat vBarColor[] = {1.0f, 0.0f, 0.0f, 1.0f};
currentFrame = getLatestBufferIndex();
if(mapper.getSimpleArg('c')){
vBarColor[0] = .7;
vBarColor[1] = .2 + sharedBuffer[currentFrame].averageAmp * 60;
vBarColor[2] = 1.0;
b = sharedBuffer[currentFrame].averageAmp;
g = 0;
r = 0;
glClearColor(r, g, b, 1.0f);
}
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
modelViewMatrix.PushMatrix();
M3DMatrix44f mCamera;
cameraFrame.GetCameraMatrix(mCamera);
modelViewMatrix.PushMatrix(mCamera);
if(mapper.getCompoundArg('r') == "auto"){
cameraFrame.RotateWorld(.01, 0.0, 0.0, 1.0);
cameraFrame.MoveForward(-.1 * sin(yRot * .05));
}
// set up light source
M3DVector4f vLightPos = { 0.0f, 10.0f, 5.0f, 1.0f };
M3DVector4f vLightEyePos;
m3dTransformVector4(vLightEyePos, vLightPos, mCamera);
for(int m = 0; m < NUM_MACROS; m++){
if(mapper.getSimpleArg('m')){
modelViewMatrix.PushMatrix();
macros[m].refFrame.RotateLocalY(.01 * macros[m].multiplier);
macros[m].refFrame.RotateLocalX(.5 * sharedBuffer[currentFrame].averageAmp);
modelViewMatrix.MultMatrix(macros[m].refFrame);
}
for(int i = 0; i < PACKET_SIZE; i++){
modelViewMatrix.PushMatrix();
GLfloat y = 5 * fabs(sharedBuffer[currentFrame].frames[i][0]);
modelViewMatrix.MultMatrix(bars[i]);
modelViewMatrix.Scale(barWidth, y, sharedBuffer[currentFrame].averageAmp * 4);
if(mapper.getSimpleArg('t')){
modelViewMatrix.Translate(0.0, sharedBuffer[currentFrame].averageAmp, 0.0);
}
shaderManager.UseStockShader(GLT_SHADER_POINT_LIGHT_DIFF,
transformPipeline.GetModelViewMatrix(),
transformPipeline.GetProjectionMatrix(),
vLightEyePos, vBarColor);
cubeBatch.Draw();
modelViewMatrix.PopMatrix();
}
if(mapper.getSimpleArg('m')){
modelViewMatrix.PopMatrix();
}
}
// draw prisms for amplitudes
modelViewMatrix.PopMatrix();
modelViewMatrix.PopMatrix();
modelViewMatrix.PopMatrix();
glutSwapBuffers();
glutPostRedisplay();
if(currentFrame != -1){
sharedBuffer[currentFrame].free = true;
}
}
///////////////////////////////////////////////////////////////////////////////
// Render a frame. The owning framework is responsible for buffer swaps,
// flushes, etc.
void RenderScene(void)
{
static CStopWatch animationTimer;
float yRot = animationTimer.GetElapsedSeconds() * 60.0f;
M3DVector3f vCameraPos;
M3DVector3f vCameraForward;
M3DVector3f vMirrorPos;
M3DVector3f vMirrorForward;
cameraFrame.GetOrigin(vCameraPos);
cameraFrame.GetForwardVector(vCameraForward);
// Set position of mirror frame (camera)
vMirrorPos[0] = 0.0;
vMirrorPos[1] = 0.1f;
vMirrorPos[2] = -6.0f; // view pos is actually behind mirror
mirrorFrame.SetOrigin(vMirrorPos);
// Calculate direction of mirror frame (camera)
// Because the position of the mirror is known relative to the origin
// find the direction vector by adding the mirror offset to the vector
// of the viewer-origin
vMirrorForward[0] = vCameraPos[0];
vMirrorForward[1] = vCameraPos[1];
vMirrorForward[2] = (vCameraPos[2] + 5);
m3dNormalizeVector3(vMirrorForward);
mirrorFrame.SetForwardVector(vMirrorForward);
// first render from the mirrors perspective
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fboName);
glDrawBuffers(1, fboBuffs);
glViewport(0, 0, mirrorTexWidth, mirrorTexHeight);
// Draw scene from the perspective of the mirror camera
modelViewMatrix.PushMatrix();
M3DMatrix44f mMirrorView;
mirrorFrame.GetCameraMatrix(mMirrorView);
modelViewMatrix.MultMatrix(mMirrorView);
// Flip the mirror camera horizontally for the reflection
modelViewMatrix.Scale(-1.0f, 1.0f, 1.0f);
glBindTexture(GL_TEXTURE_2D, textures[0]); // Marble
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
shaderManager.UseStockShader(GLT_SHADER_TEXTURE_MODULATE, transformPipeline.GetModelViewProjectionMatrix(), vWhite, 0);
floorBatch.Draw();
DrawWorld(yRot);
// Now draw a cylinder representing the viewer
M3DVector4f vLightTransformed;
modelViewMatrix.GetMatrix(mMirrorView);
m3dTransformVector4(vLightTransformed, vLightPos, mMirrorView);
modelViewMatrix.Translate(vCameraPos[0],vCameraPos[1]-0.8f,vCameraPos[2]-1.0f);
modelViewMatrix.Rotate(-90.0f, 1.0f, 0.0f, 0.0f);
shaderManager.UseStockShader(GLT_SHADER_POINT_LIGHT_DIFF,
modelViewMatrix.GetMatrix(),
transformPipeline.GetProjectionMatrix(),
vLightTransformed, vBlue, 0);
cylinderBatch.Draw();
modelViewMatrix.PopMatrix();
// Reset FBO. Draw world again from the real cameras perspective
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
glDrawBuffers(1, windowBuff);
glViewport(0, 0, screenWidth, screenHeight);
modelViewMatrix.PushMatrix();
M3DMatrix44f mCamera;
cameraFrame.GetCameraMatrix(mCamera);
modelViewMatrix.MultMatrix(mCamera);
glBindTexture(GL_TEXTURE_2D, textures[0]); // Marble
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
shaderManager.UseStockShader(GLT_SHADER_TEXTURE_MODULATE, transformPipeline.GetModelViewProjectionMatrix(), vWhite, 0);
floorBatch.Draw();
DrawWorld(yRot);
// Now draw the mirror surfaces
modelViewMatrix.PushMatrix();
modelViewMatrix.Translate(0.0f, -0.4f, -5.0f);
if(vCameraPos[2] > -5.0)
{
glBindTexture(GL_TEXTURE_2D, mirrorTexture); // Reflection
shaderManager.UseStockShader(GLT_SHADER_TEXTURE_REPLACE, transformPipeline.GetModelViewProjectionMatrix(), 0);
}
else
{
// If the camera is behind the mirror, just draw black
shaderManager.UseStockShader(GLT_SHADER_FLAT, transformPipeline.GetModelViewProjectionMatrix(), vBlack);
}
mirrorBatch.Draw();
shaderManager.UseStockShader(GLT_SHADER_FLAT, transformPipeline.GetModelViewProjectionMatrix(), vGrey);
mirrorBorderBatch.Draw();
modelViewMatrix.PopMatrix();
modelViewMatrix.PopMatrix();
// Do the buffer Swap
glutSwapBuffers();
// Do it again
glutPostRedisplay();
}
