void ExampleVrApp::drawGraphics(int threadId, MinVR::AbstractCameraRef camera,
MinVR::WindowRef window) {
GLenum err;
while((err = glGetError()) != GL_NO_ERROR) {
std::cout << "GLERROR: "<<err<<std::endl;
}
glBindBufferARB(GL_ARRAY_BUFFER_ARB, _vboId[threadId]);
// enable vertex arrays
glEnableClientState(GL_NORMAL_ARRAY);
glEnableClientState(GL_COLOR_ARRAY);
glEnableClientState(GL_VERTEX_ARRAY);
// before draw, specify vertex and index arrays with their offsets
glNormalPointer(GL_FLOAT, 0, (void*)(sizeof(GLfloat)*108));
glColorPointer(3, GL_FLOAT, 0, (void*)((sizeof(GLfloat)*108)+(sizeof(GLfloat)*108)));
glVertexPointer(3, GL_FLOAT, 0, 0);
glm::dmat4 translate = glm::translate(glm::dmat4(1.0f), glm::dvec3(0.0f, 0.0f, -5.0f));
glm::dvec2 rotAngles(-20.0, 45.0);
glm::dmat4 rotate1 = glm::rotate(translate, rotAngles.y, glm::dvec3(0.0,1.0,0.0));
camera->setObjectToWorldMatrix(glm::rotate(rotate1, rotAngles.x, glm::dvec3(1.0,0,0)));
glDrawArrays(GL_TRIANGLES, 0, 36);
glDisableClientState(GL_VERTEX_ARRAY); // disable vertex arrays
glDisableClientState(GL_COLOR_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
/*
camera->setObjectToWorldMatrix(glm::mat4(1.0));
glBegin(GL_TRIANGLES);
glColor3f(1.f, 0.f, 0.f);
glVertex3f(-0.3f, -0.2f, -1.f);
glColor3f(0.f, 1.0f, 0.f);
glVertex3f(0.3f, -0.2f, -1.0f);
glColor3f(0.f, 0.f, 1.f);
glVertex3f(0.f, 0.3f, -1.f);
glEnd();
*/
}
// transMat really means a transform, given by ExperimentMgr
void Tetrahedron::draw(int threadId, MinVR::AbstractCameraRef camera, MinVR::WindowRef window, std::string textureName, glm::dmat4 transMat, std::string color1, std::string color2, std::string color3, std::string color4, std::string color5){
const int numCylinderIndices = (int)(cylinderMesh->getFilledIndexByteSize()/sizeof(int));
const int numSphereIndices = (int)(sphereMesh->getFilledIndexByteSize()/sizeof(int));
tetraShader->use();
tetraShader->setUniform("projection_mat", offAxisCamera->getLastAppliedProjectionMatrix());
tetraShader->setUniform("view_mat", offAxisCamera->getLastAppliedViewMatrix());
//glm::dvec3 eye_world = glm::dvec3(glm::column(glm::inverse(offAxisCamera->getLastAppliedViewMatrix()), 3));
//tetraShader->setUniform("eye_world", eye_world);
///////////////////////////////
// Binding Textures //
///////////////////////////////
texMan->getTexture(threadId, textureName)->bind(6);
texMan->getTexture(threadId, color1)->bind(7);
texMan->getTexture(threadId, color2)->bind(8);
texMan->getTexture(threadId, color3)->bind(9);
texMan->getTexture(threadId, color4)->bind(10);
texMan->getTexture(threadId, color5)->bind(11);
tetraShader->setUniform("textureSampler", 6);
////////////////////////
// static tetrahedron //
////////////////////////
glBindVertexArray(cylinderMesh->getVAOID());
//glm::dmat4 tetraPosition = glm::translate(glm::dmat4(1.0),glm::dvec3(0.0, 0.0, 0.0));
camera->setObjectToWorldMatrix(glm::dmat4(1.0)); // center it at origin
tetraShader->setUniform("model_mat", offAxisCamera->getLastAppliedModelMatrix());
tetraShader->setUniform("textureSampler", 6);
for(int c = 0; c < 6 ; c++) {
//std::cout << "The indexes for drawing: " << c * GPUCylinderOffset << ", " << (c+1) * GPUCylinderOffset << std::endl;
//std::cout << 0 << ", " << numCylinderIndices << std::endl;
if (c > 3) {
tetraShader->setUniform("textureSampler", 11);
}
glDrawArrays(GL_TRIANGLE_STRIP, c*GPUCylinderOffset, GPUCylinderOffset);
}
///////////////////////////////
// transformable tetrahedron //
///////////////////////////////
camera->setObjectToWorldMatrix(cFrameMgr->getVirtualToRoomSpaceFrame());
tetraShader->setUniform("model_mat", offAxisCamera->getLastAppliedModelMatrix()*transMat);
tetraShader->setUniform("textureSampler", 6);
for(int c = 0; c < numTetraEdges ; c++) {
//std::cout << "The indexes for drawing: " << c * GPUCylinderOffset << ", " << (c+1) * GPUCylinderOffset << std::endl;
//std::cout << 0 << ", " << numCylinderIndices << std::endl;
if (c > 3) {
tetraShader->setUniform("textureSampler", 11);
}
glDrawArrays(GL_TRIANGLE_STRIP, c*GPUCylinderOffset, GPUCylinderOffset);
}
///////////////////////////////////////////
// Draw Alignment Guide Cylinders // //animates with transformable tetrahedron
///////////////////////////////////////////
// these are variables needed for these cylinders and the spheres below
glm::dmat4 sphereTransMat1 = glm::translate(glm::dmat4(1.0), pointA);
glm::dmat4 sphereTransMat2 = glm::translate(glm::dmat4(1.0), pointB);
glm::dmat4 sphereTransMat3 = glm::translate(glm::dmat4(1.0), pointC);
glm::dmat4 sphereTransMat4 = glm::translate(glm::dmat4(1.0), pointD);
//cylinder VBO is still bound.
glm::dmat4 cylinderAlignX = glm::rotate(glm::dmat4(1.0), 0.0, glm::dvec3(1.0, 0.0, 0.0));
glm::dmat4 cylinderAlignY = glm::rotate(glm::dmat4(1.0), 90.0, glm::dvec3(0.0, 1.0, 0.0));
glm::dmat4 cylinderAlignZ = glm::rotate(glm::dmat4(1.0), 90.0, glm::dvec3(0.0, 0.0, 1.0));
// change numSphereIndices
// cylinders for point A
tetraShader->setUniform("textureSampler", 7);
tetraShader->setUniform("model_mat", sphereTransMat1 * cylinderAlignX);
glDrawArrays(GL_TRIANGLE_STRIP, 6*GPUCylinderOffset, GPUCylinderOffset); // x
tetraShader->setUniform("model_mat", sphereTransMat1 * cylinderAlignY);
glDrawArrays(GL_TRIANGLE_STRIP, 6*GPUCylinderOffset, GPUCylinderOffset); // y
tetraShader->setUniform("model_mat", sphereTransMat1 * cylinderAlignZ);
glDrawArrays(GL_TRIANGLE_STRIP, 6*GPUCylinderOffset, GPUCylinderOffset); // z
// cylinders for point B
tetraShader->setUniform("textureSampler", 8);
tetraShader->setUniform("model_mat", sphereTransMat2 * cylinderAlignX);
glDrawArrays(GL_TRIANGLE_STRIP, 6*GPUCylinderOffset, GPUCylinderOffset); // x
tetraShader->setUniform("model_mat", sphereTransMat2 * cylinderAlignY);
glDrawArrays(GL_TRIANGLE_STRIP, 6*GPUCylinderOffset, GPUCylinderOffset); // y
tetraShader->setUniform("model_mat", sphereTransMat2 * cylinderAlignZ);
glDrawArrays(GL_TRIANGLE_STRIP, 6*GPUCylinderOffset, GPUCylinderOffset); // z
// cylinders for point C
tetraShader->setUniform("textureSampler", 9);
tetraShader->setUniform("model_mat", sphereTransMat3 * cylinderAlignX);
glDrawArrays(GL_TRIANGLE_STRIP, 6*GPUCylinderOffset, GPUCylinderOffset); // x
tetraShader->setUniform("model_mat", sphereTransMat3 * cylinderAlignY);
glDrawArrays(GL_TRIANGLE_STRIP, 6*GPUCylinderOffset, GPUCylinderOffset); // y
tetraShader->setUniform("model_mat", sphereTransMat3 * cylinderAlignZ);
glDrawArrays(GL_TRIANGLE_STRIP, 6*GPUCylinderOffset, GPUCylinderOffset); // z
// cylinders for point D
tetraShader->setUniform("textureSampler", 10);
tetraShader->setUniform("model_mat", sphereTransMat4 * cylinderAlignX);
glDrawArrays(GL_TRIANGLE_STRIP, 6*GPUCylinderOffset, GPUCylinderOffset); // x
tetraShader->setUniform("model_mat", sphereTransMat4 * cylinderAlignY);
glDrawArrays(GL_TRIANGLE_STRIP, 6*GPUCylinderOffset, GPUCylinderOffset); // y
tetraShader->setUniform("model_mat", sphereTransMat4 * cylinderAlignZ);
glDrawArrays(GL_TRIANGLE_STRIP, 6*GPUCylinderOffset, GPUCylinderOffset); // z
///////////////////////////////////////////
// Draw Static Tetrahedron spheres //
///////////////////////////////////////////
glBindVertexArray(sphereMesh->getVAOID());
tetraShader->setUniform("textureSampler", 7);
tetraShader->setUniform("model_mat", sphereTransMat1);
glDrawArrays(GL_TRIANGLE_STRIP, 0, numSphereIndices);
tetraShader->setUniform("textureSampler", 8);
tetraShader->setUniform("model_mat", sphereTransMat2);
glDrawArrays(GL_TRIANGLE_STRIP, 0, numSphereIndices);
tetraShader->setUniform("textureSampler", 9);
tetraShader->setUniform("model_mat", sphereTransMat3);
glDrawArrays(GL_TRIANGLE_STRIP, 0, numSphereIndices);
tetraShader->setUniform("textureSampler", 10);
tetraShader->setUniform("model_mat", sphereTransMat4);
glDrawArrays(GL_TRIANGLE_STRIP, 0, numSphereIndices);
///////////////////////////////////////////
// Draw Transformed Tetrahedron spheres //
///////////////////////////////////////////
tetraShader->setUniform("textureSampler", 7);
tetraShader->setUniform("model_mat", offAxisCamera->getLastAppliedModelMatrix() * transMat * sphereTransMat1);
glDrawArrays(GL_TRIANGLE_STRIP, 0, numSphereIndices);
tetraShader->setUniform("textureSampler", 8);
tetraShader->setUniform("model_mat", offAxisCamera->getLastAppliedModelMatrix()* transMat * sphereTransMat2);
glDrawArrays(GL_TRIANGLE_STRIP, 0, numSphereIndices);
tetraShader->setUniform("textureSampler", 9);
tetraShader->setUniform("model_mat", offAxisCamera->getLastAppliedModelMatrix()* transMat * sphereTransMat3);
glDrawArrays(GL_TRIANGLE_STRIP, 0, numSphereIndices);
tetraShader->setUniform("textureSampler", 10);
tetraShader->setUniform("model_mat", offAxisCamera->getLastAppliedModelMatrix()* transMat * sphereTransMat4);
glDrawArrays(GL_TRIANGLE_STRIP, 0, numSphereIndices);
// 4 spheres
//for (int t = 0; t < 4; t++) {
// glm::dmat4 sphereTransMat1 = glm::translate(glm::dmat4(1.0), pointA);
// //tetraShader->setUniform("model_mat", offAxisCamera->getLastAppliedModelMatrix()*sphereTransMat1);
// glDrawArrays(GL_TRIANGLES, 0, numSphereIndices);
//}
}
void Feedback::draw(int threadId, MinVR::AbstractCameraRef camera, MinVR::WindowRef window) {
//turn on blending
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
shader->use();
shader->setUniform("projection_mat", offAxisCamera->getLastAppliedProjectionMatrix());
shader->setUniform("view_mat", offAxisCamera->getLastAppliedViewMatrix());
const int numQuadIndices = (int)(quadMesh->getFilledIndexByteSize()/sizeof(int));
const int numTouchIndices = (int)(touchMesh->getFilledIndexByteSize()/sizeof(int));
const int numBetweenIndices = (int)(touchMesh->getFilledIndexByteSize()/sizeof(int));
// if we are in some mode, displayText should be fine
// displayText is modified through HCIs
if (displayText != "") {
//std::cout << "Display Text: " << displayText << std::endl;
texMan->getTexture(threadId, displayText)->bind(1);
shader->setUniform("textureSampler", 1);
glm::dvec4 quadTranslate(0.0, 0.0, 0.0, 1.0);
// draw text here, remember to mess with the shader with the alpha value
glm::dmat4 quadAtCorner = glm::dmat4(1.0);
quadAtCorner[3] = quadTranslate;
camera->setObjectToWorldMatrix(quadAtCorner);
shader->setUniform("model_mat", offAxisCamera->getLastAppliedModelMatrix());
glBindVertexArray(quadMesh->getVAOID());
glDrawArrays(GL_TRIANGLE_STRIP, 0, numQuadIndices);
}
if (displayText == "between") {
texMan->getTexture(threadId, displayText)->bind(1);
shader->setUniform("textureSampler", 1);
glm::dvec4 quadTranslate(0.0, 1.0, 0.0, 1.0);
// draw text here, remember to mess with the shader with the alpha value
glm::dmat4 quadAtCorner = glm::dmat4(1.0);
quadAtCorner[3] = quadTranslate;
camera->setObjectToWorldMatrix(quadAtCorner);
shader->setUniform("model_mat", offAxisCamera->getLastAppliedModelMatrix());
glBindVertexArray(betweenMesh->getVAOID());
glDrawArrays(GL_TRIANGLE_STRIP, 0, numBetweenIndices);
}
if (displayPractice) {
texMan->getTexture(threadId, "practice")->bind(1);
shader->setUniform("textureSampler", 1);
glm::dvec4 quadTranslate(2.5, 0.0, 0.0, 1.0);
// draw text here, remember to mess with the shader with the alpha value
glm::dmat4 quadAtCorner = glm::dmat4(1.0);
quadAtCorner[3] = quadTranslate;
camera->setObjectToWorldMatrix(quadAtCorner);
shader->setUniform("model_mat", offAxisCamera->getLastAppliedModelMatrix());
glBindVertexArray(quadMesh->getVAOID());
glDrawArrays(GL_TRIANGLE_STRIP, 0, numQuadIndices);
}
// draw the touch texture
// somehow need the room position of the touch
glBindVertexArray(touchMesh->getVAOID());
texMan->getTexture(threadId, "touch2")->bind(2);
shader->setUniform("textureSampler", 2);
std::map<int, TouchDataRef>::iterator it;
glm::dvec3 roomCoord;
for(it = registeredTouchData.begin(); it != registeredTouchData.end(); ++it) {
TouchDataRef event = it->second;
roomCoord = event->getCurrRoomPos();
// new matrix for each triangle
camera->setObjectToWorldMatrix(glm::translate(glm::dmat4(1.0f), roomCoord));
shader->setUniform("model_mat", offAxisCamera->getLastAppliedModelMatrix());
// draw quad
glDrawArrays(GL_TRIANGLE_STRIP, 0, numTouchIndices);
}
// draw center of rotation point for XZRotMode, if there is one.
// logic controlled by the HCI
// uses same VBO as touch
if (centOfRot.x != DBL_MAX) {
texMan->getTexture(threadId, "centOfRot")->bind(3);
shader->setUniform("textureSampler", 3);
camera->setObjectToWorldMatrix(glm::translate(glm::dmat4(1.0f), centOfRot));
shader->setUniform("model_mat", offAxisCamera->getLastAppliedModelMatrix());
// draw quad
glDrawArrays(GL_TRIANGLE_STRIP, 0, numTouchIndices);
}
// turn off blending
glBlendFunc(GL_ONE, GL_ZERO);
glDisable(GL_BLEND);
}