void RenderManager::BuildModelViewMatrix(GameObject g)
{
Matrix4x4 mvMatrix;
Matrix4x4 model = BuildModelMatrix(g);
Matrix4x4 view = BuildViewMatrix();
mvMatrix = model * view;
ConvertToOpenGLMatrix(mvMatrix, modelViewMatrix);
float mv[3][3];
mv[0][0] = mvMatrix(0,0);
mv[1][1] = mvMatrix(1,1);
mv[2][2] = mvMatrix(2,2);
mv[1][0] = mvMatrix(0,1);
mv[2][0] = mvMatrix(0,2);
mv[2][1] = mvMatrix(1,2);
mv[0][1] = mvMatrix(1,0);
mv[0][2] = mvMatrix(2,0);
mv[1][2] = mvMatrix(2,1);
float det = mv[0][0] * (mv[1][1]*mv[2][2] - mv[1][2]*mv[2][1]) - mv[0][1] * (mv[1][0] * mv[2][2] - mv[1][2] * mv[2][0]) + mv[0][2] * (mv[1][0] * mv[2][1] - mv[1][1] * mv[2][0]);
mv[0][0] = (mv[1][1]*mv[2][2] - mv[1][2]*mv[2][1])/det;
mv[0][1] = -(mv[1][0]*mv[2][2] - mv[1][2]*mv[2][0])/det;
mv[0][2] = (mv[1][0]*mv[2][1] - mv[1][1]*mv[2][0])/det;
mv[1][0] = -(mv[0][1]*mv[2][2] - mv[0][2]*mv[2][1])/det;
mv[1][1] = (mv[0][0]*mv[2][2] - mv[0][2]*mv[2][0])/det;
mv[1][2] = -(mv[0][0]*mv[2][1] - mv[0][1]*mv[2][0])/det;
mv[2][0] = (mv[0][1]*mv[1][2] - mv[0][2]*mv[1][1])/det;
mv[2][1] = -(mv[0][0]*mv[1][2] - mv[0][2]*mv[1][0])/det;
mv[2][2] = (mv[0][0]*mv[1][1] - mv[0][1]*mv[1][0])/det;
Matrix4x4 normMatrix(Matrix4x4::IDENTITY);
for (int i = 0; i < 3; i++) {
for (int j = 0; j < 3; j++) {
normMatrix.elem[i][j] = mv[j][i];
}
}
ConvertToOpenGLMatrix(normMatrix, normalMatrix);
}
void Scene::DrawObject(const Framework::Mesh *pMesh, const std::string &meshName,
const ProgramData &prog, int materialBlockIndex, int mtlIx,
const glutil::MatrixStack &modelMatrix)
{
glBindBufferRange(GL_UNIFORM_BUFFER, materialBlockIndex, m_materialUniformBuffer,
mtlIx * m_sizeMaterialBlock, sizeof(MaterialBlock));
glm::mat3 normMatrix(modelMatrix.Top());
normMatrix = glm::transpose(glm::inverse(normMatrix));
glUseProgram(prog.theProgram);
glUniformMatrix4fv(prog.modelToCameraMatrixUnif, 1, GL_FALSE,
glm::value_ptr(modelMatrix.Top()));
glUniformMatrix3fv(prog.normalModelToCameraMatrixUnif, 1, GL_FALSE,
glm::value_ptr(normMatrix));
pMesh->Render(meshName);
glUseProgram(0);
glBindBufferBase(GL_UNIFORM_BUFFER, materialBlockIndex, 0);
}
Matrix callFunc(const char *funcName, ASTNode *argListNode){
/* sort out args */
ASTNode *argNode[10];
Matrix result;
Number calcresult;
MatList *p;
if (strcmp(funcName, "eye")==0) { /* generate eye matrix */
argNode[0] = getNthArgFromArgList(argListNode,1);
result = createEyeMatrix((int)readOneElementOfMatrix(argNode[0]->mat,1,1));
}
else if(strcmp(funcName, "rand")==0){/*generate rand matrix*/
argNode[0] = getNthArgFromArgList(argListNode,1);
argNode[1] = getNthArgFromArgList(argListNode,2);
result = createRandMatrix((int)readOneElementOfMatrix(argNode[0]->mat,1,1),readOneElementOfMatrix(argNode[1]->mat,1,1));
}
else if(strcmp(funcName, "zeros")==0){/*generate rand matrix*/
argNode[0] = getNthArgFromArgList(argListNode,1);
argNode[1] = getNthArgFromArgList(argListNode,2);
result = createZeroMatrix((int)readOneElementOfMatrix(argNode[0]->mat,1,1),readOneElementOfMatrix(argNode[1]->mat,1,1));
}
else if(strcmp(funcName, "max")==0){/*calculate maximum of matrix*/
argNode[0] = getNthArgFromArgList(argListNode,1);
calcresult = maxMatrix(argNode[0]->mat);
result = createEyeMatrix(1);
changeOneElementOfMatrix(result, 1, 1, calcresult);
}
else if(strcmp(funcName, "min")==0){/*calculate minimum of matrix*/
argNode[0] = getNthArgFromArgList(argListNode,1);
calcresult = minMatrix(argNode[0]->mat);
result = createEyeMatrix(1);
changeOneElementOfMatrix(result, 1, 1, calcresult);
}
else if(strcmp(funcName, "sum")==0){/*calculate sum of matrix*/
argNode[0] = getNthArgFromArgList(argListNode,1);
calcresult = sumMatrix(argNode[0]->mat);
result = createEyeMatrix(1);
changeOneElementOfMatrix(result, 1, 1, calcresult);
}
else if(strcmp(funcName, "round")==0){/*calculate round of matrix*/
argNode[0] = getNthArgFromArgList(argListNode,1);
result = roundMatrix(argNode[0]->mat);
}
else if(strcmp(funcName, "upper")==0){/*calculate upper of matrix*/
argNode[0] = getNthArgFromArgList(argListNode,1);
result = upperMatrix(argNode[0]->mat);
}
else if(strcmp(funcName, "lower")==0){/*calculate upper of matrix*/
argNode[0] = getNthArgFromArgList(argListNode,1);
result = lowerMatrix(argNode[0]->mat);
}
else if(strcmp(funcName, "det")==0){/*calculate DeterminantCalc*/
argNode[0] = getNthArgFromArgList(argListNode,1);
calcresult = DeterminantCalc(argNode[0]->mat.row, argNode[0]->mat);
result = createEyeMatrix(1);
changeOneElementOfMatrix(result, 1, 1, calcresult);
}
else if(strcmp(funcName, "turn")==0){/*calculate turn*/
argNode[0] = getNthArgFromArgList(argListNode,1);
result = turnMatrix(argNode[0]->mat);
}
else if(strcmp(funcName, "power")==0){/*calculate power*/
argNode[0] = getNthArgFromArgList(argListNode,1);
argNode[1] = getNthArgFromArgList(argListNode,2);
result = powerMatrix(argNode[0]->mat,(int)readOneElementOfMatrix(argNode[1]->mat,1,1));
}
else if(strcmp(funcName, "dot")==0){/*calculate dot*/
argNode[0] = getNthArgFromArgList(argListNode,1);
argNode[1] = getNthArgFromArgList(argListNode,2);
result = dotMatrix(argNode[0]->mat,argNode[1]->mat);
}
else if(strcmp(funcName, "norm")==0){/*calculate norm*/
argNode[0] = getNthArgFromArgList(argListNode,1);
result = normMatrix(argNode[0]->mat);
}
else if(strcmp(funcName, "angle")==0){/*calculate norm*/
argNode[0] = getNthArgFromArgList(argListNode,1);
argNode[1] = getNthArgFromArgList(argListNode,2);
result = angleMatrix(argNode[0]->mat,argNode[1]->mat);
}
else{
if (get_submatrix == 1){
p = checkMatName(funcName);
argNode[0] = getNthArgFromArgList(argListNode,1);
argNode[1] = getNthArgFromArgList(argListNode,2);
result = createSubMatrix(p->mat,argNode[0]->mat,argNode[1]->mat);
get_submatrix = 0;
}
else{
p = checkMatName(funcName);
argNode[0] = getNthArgFromArgList(argListNode,1);
argNode[1] = getNthArgFromArgList(argListNode,2);
calcresult = readOneElementOfMatrix(p->mat,(int)readOneElementOfMatrix(argNode[0]->mat,1,1),readOneElementOfMatrix(argNode[1]->mat,1,1));
result = createEyeMatrix(1);
changeOneElementOfMatrix(result, 1, 1, calcresult);
}
}
return result;
}
//Called to update the display.
//You should call glutSwapBuffers after all of your rendering to display what you rendered.
//If you need continuous updates of the screen, call glutPostRedisplay() at the end of the function.
void display()
{
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClearDepth(1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
if(g_pPlaneMesh && g_pCylinderMesh)
{
glutil::MatrixStack modelMatrix;
modelMatrix.SetMatrix(g_viewPole.CalcMatrix());
glm::vec4 lightDirCameraSpace = modelMatrix.Top() * g_lightDirection;
glUseProgram(g_WhiteDiffuseColor.theProgram);
glUniform3fv(g_WhiteDiffuseColor.dirToLightUnif, 1, glm::value_ptr(lightDirCameraSpace));
glUseProgram(g_VertexDiffuseColor.theProgram);
glUniform3fv(g_VertexDiffuseColor.dirToLightUnif, 1, glm::value_ptr(lightDirCameraSpace));
glUseProgram(0);
{
glutil::PushStack push(modelMatrix);
//Render the ground plane.
{
glutil::PushStack push(modelMatrix);
glUseProgram(g_WhiteDiffuseColor.theProgram);
glUniformMatrix4fv(g_WhiteDiffuseColor.modelToCameraMatrixUnif, 1, GL_FALSE, glm::value_ptr(modelMatrix.Top()));
glm::mat3 normMatrix(modelMatrix.Top());
glUniformMatrix3fv(g_WhiteDiffuseColor.normalModelToCameraMatrixUnif, 1, GL_FALSE, glm::value_ptr(normMatrix));
glUniform4f(g_WhiteDiffuseColor.lightIntensityUnif, 1.0f, 1.0f, 1.0f, 1.0f);
g_pPlaneMesh->Render();
glUseProgram(0);
}
//Render the Cylinder
{
glutil::PushStack push(modelMatrix);
modelMatrix.ApplyMatrix(g_objtPole.CalcMatrix());
if(g_bScaleCyl)
modelMatrix.Scale(1.0f, 1.0f, 0.2f);
glUseProgram(g_VertexDiffuseColor.theProgram);
glUniformMatrix4fv(g_VertexDiffuseColor.modelToCameraMatrixUnif, 1, GL_FALSE, glm::value_ptr(modelMatrix.Top()));
glm::mat3 normMatrix(modelMatrix.Top());
if(g_bDoInvTranspose)
{
normMatrix = glm::transpose(glm::inverse(normMatrix));
}
glUniformMatrix3fv(g_VertexDiffuseColor.normalModelToCameraMatrixUnif, 1, GL_FALSE, glm::value_ptr(normMatrix));
glUniform4f(g_VertexDiffuseColor.lightIntensityUnif, 1.0f, 1.0f, 1.0f, 1.0f);
g_pCylinderMesh->Render("lit-color");
glUseProgram(0);
}
}
}
glutSwapBuffers();
}
GLUSboolean display(GLUSfloat time)
{
g_LightTimer.Update(time);
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClearDepth(1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glutil::MatrixStack modelMatrix;
modelMatrix.SetMatrix(g_viewPole.CalcMatrix());
const glm::vec4 &worldLightPos = CalcLightPosition();
const glm::vec4 &lightPosCameraSpace = modelMatrix.Top() * worldLightPos;
glUseProgram(g_MonoDiffuseProgram.program);
glUniform4f(g_MonoDiffuseProgram.lightIntensityUnif, 0.8f, 0.8f, 0.8f, 1.0f);
glUniform4f(g_MonoDiffuseProgram.ambientIntensityUnif, 0.2f, 0.2f, 0.2f, 1.0f);
glUniform3fv(g_MonoDiffuseProgram.cameraSpaceLightPosUnif,1, glm::value_ptr(lightPosCameraSpace));
glUniform1f(g_MonoDiffuseProgram.lightAttenuationUnif, g_fLightAttenuation);
glUniform1f(g_MonoDiffuseProgram.shininessFactorUnif, g_fGaussianRoughness);
glUniform4fv(g_MonoDiffuseProgram.baseDiffuseColorUnif, 1,
g_bDrawDark ? glm::value_ptr(g_darkColor) : glm::value_ptr(g_lightColor));
glUseProgram(g_ColorDiffuseProgram.program);
glUniform4f(g_ColorDiffuseProgram.lightIntensityUnif, 0.8f, 0.8f, 0.8f, 1.0f);
glUniform4f(g_ColorDiffuseProgram.ambientIntensityUnif, 0.2f, 0.2f, 0.2f, 1.0f);
glUniform3fv(g_ColorDiffuseProgram.cameraSpaceLightPosUnif, 1, glm::value_ptr(lightPosCameraSpace));
glUniform1f(g_ColorDiffuseProgram.lightAttenuationUnif, g_fLightAttenuation);
glUniform1f(g_ColorDiffuseProgram.shininessFactorUnif, g_fGaussianRoughness);
glUseProgram(0);
{
glutil::PushStack push(modelMatrix);
{
glutil::PushStack push(modelMatrix);
glm::mat3 normMatrix(modelMatrix.Top());
normMatrix = glm::transpose(glm::inverse(normMatrix));
glUseProgram(g_MonoDiffuseProgram.program);
glUniformMatrix4fv(g_MonoDiffuseProgram.modelViewUnif, 1, GL_FALSE,
glm::value_ptr(modelMatrix.Top()));
glUniformMatrix3fv(g_MonoDiffuseProgram.modelViewForNormalUnif, 1, GL_FALSE,
glm::value_ptr(normMatrix));
g_pPlaneMesh->render();
glUseProgram(0);
}
{
glutil::PushStack push(modelMatrix);
modelMatrix.ApplyMatrix(g_objtPole.CalcMatrix());
if (g_bScaleCyl) {
modelMatrix.Scale(1.0f, 1.0f, 0.2f);
}
glm::mat3 normMatrix(modelMatrix.Top());
normMatrix = glm::transpose(glm::inverse(normMatrix));
ProgramData &prog = g_bDrawColoredCyl ? g_ColorDiffuseProgram : g_MonoDiffuseProgram;
glUseProgram(prog.program);
glUniformMatrix4fv(prog.modelViewUnif, 1, GL_FALSE,
glm::value_ptr(modelMatrix.Top()));
glUniformMatrix3fv(prog.modelViewForNormalUnif, 1, GL_FALSE,
glm::value_ptr(normMatrix));
g_pCylinderMesh->render(g_bDrawColoredCyl ? "lit-color" : "lit");
glUseProgram(0);
}
if (g_bDrawLightSource)
{
glutil::PushStack push(modelMatrix);
modelMatrix.Translate(glm::vec3(worldLightPos));
modelMatrix.Scale(0.1f, 0.1f, 0.1f);
glUseProgram(g_UnlitProgram.program);
glUniformMatrix4fv(g_UnlitProgram.modelViewUnif, 1, GL_FALSE,
glm::value_ptr(modelMatrix.Top()));
glUniform4f(g_UnlitProgram.objectColorUnif, 0.8078f, 0.8706f, 0.9922f, 1.0f);
g_pCubeMesh->render("flat");
}
}
return GLUS_TRUE;
}
void display()
{
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClearDepth(1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
if(g_pPlaneMesh && g_pCylinderMesh)
{
glutil::MatrixStack modelMatrix;
modelMatrix.SetMatrix(g_viewPole.CalcMatrix());
glm::vec4 lightDirCameraSpace = modelMatrix.Top() * g_lightDirection;
ProgramData &whiteDiffuse = g_bShowAmbient ? g_WhiteAmbDiffuseColor : g_WhiteDiffuseColor;
ProgramData &vertexDiffuse = g_bShowAmbient ? g_VertexAmbDiffuseColor : g_VertexDiffuseColor;
if(g_bShowAmbient)
{
glUseProgram(whiteDiffuse.theProgram);
glUniform4f(whiteDiffuse.lightIntensityUnif, 0.8f, 0.8f, 0.8f, 1.0f);
glUniform4f(whiteDiffuse.ambientIntensityUnif, 0.2f, 0.2f, 0.2f, 1.0f);
glUseProgram(vertexDiffuse.theProgram);
glUniform4f(vertexDiffuse.lightIntensityUnif, 0.8f, 0.8f, 0.8f, 1.0f);
glUniform4f(vertexDiffuse.ambientIntensityUnif, 0.2f, 0.2f, 0.2f, 1.0f);
}
else
{
glUseProgram(whiteDiffuse.theProgram);
glUniform4f(whiteDiffuse.lightIntensityUnif, 1.0f, 1.0f, 1.0f, 1.0f);
glUseProgram(vertexDiffuse.theProgram);
glUniform4f(vertexDiffuse.lightIntensityUnif, 1.0f, 1.0f, 1.0f, 1.0f);
}
glUseProgram(whiteDiffuse.theProgram);
glUniform3fv(whiteDiffuse.dirToLightUnif, 1, glm::value_ptr(lightDirCameraSpace));
glUseProgram(vertexDiffuse.theProgram);
glUniform3fv(vertexDiffuse.dirToLightUnif, 1, glm::value_ptr(lightDirCameraSpace));
glUseProgram(0);
{
glutil::PushStack push(modelMatrix);
//Render the ground plane.
{
glutil::PushStack push(modelMatrix);
glUseProgram(whiteDiffuse.theProgram);
glUniformMatrix4fv(whiteDiffuse.modelToCameraMatrixUnif, 1, GL_FALSE, glm::value_ptr(modelMatrix.Top()));
glm::mat3 normMatrix(modelMatrix.Top());
glUniformMatrix3fv(whiteDiffuse.normalModelToCameraMatrixUnif, 1, GL_FALSE, glm::value_ptr(normMatrix));
g_pPlaneMesh->Render();
glUseProgram(0);
}
//Render the Cylinder
{
glutil::PushStack push(modelMatrix);
modelMatrix.ApplyMatrix(g_objtPole.CalcMatrix());
if(g_bDrawColoredCyl)
{
glUseProgram(vertexDiffuse.theProgram);
glUniformMatrix4fv(vertexDiffuse.modelToCameraMatrixUnif, 1, GL_FALSE, glm::value_ptr(modelMatrix.Top()));
glm::mat3 normMatrix(modelMatrix.Top());
glUniformMatrix3fv(vertexDiffuse.normalModelToCameraMatrixUnif, 1, GL_FALSE, glm::value_ptr(normMatrix));
g_pCylinderMesh->Render("lit-color");
}
else
{
glUseProgram(whiteDiffuse.theProgram);
glUniformMatrix4fv(whiteDiffuse.modelToCameraMatrixUnif, 1, GL_FALSE, glm::value_ptr(modelMatrix.Top()));
glm::mat3 normMatrix(modelMatrix.Top());
glUniformMatrix3fv(whiteDiffuse.normalModelToCameraMatrixUnif, 1, GL_FALSE, glm::value_ptr(normMatrix));
g_pCylinderMesh->Render("lit");
}
glUseProgram(0);
}
}
}
glutSwapBuffers();
}
