// Render the sphere at the correct position and with the correct orientation void ConvexMesh::render(openglframework::Shader& shader, const openglframework::Matrix4& worldToCameraMatrix) { // Bind the shader shader.bind(); // Set the model to camera matrix shader.setMatrix4x4Uniform("localToWorldMatrix", mTransformMatrix); shader.setMatrix4x4Uniform("worldToCameraMatrix", worldToCameraMatrix); // Set the normal matrix (inverse transpose of the 3x3 upper-left sub matrix of the // model-view matrix) const openglframework::Matrix4 localToCameraMatrix = worldToCameraMatrix * mTransformMatrix; const openglframework::Matrix3 normalMatrix = localToCameraMatrix.getUpperLeft3x3Matrix().getInverse().getTranspose(); shader.setMatrix3x3Uniform("normalMatrix", normalMatrix, false); // Set the vertex color openglframework::Color currentColor = mBody->isSleeping() ? mSleepingColor : mColor; openglframework::Vector4 color(currentColor.r, currentColor.g, currentColor.b, currentColor.a); shader.setVector4Uniform("vertexColor", color, false); // Bind the VAO mVAO.bind(); mVBOVertices.bind(); // Get the location of shader attribute variables GLint vertexPositionLoc = shader.getAttribLocation("vertexPosition"); GLint vertexNormalLoc = shader.getAttribLocation("vertexNormal", false); glEnableVertexAttribArray(vertexPositionLoc); glVertexAttribPointer(vertexPositionLoc, 3, GL_FLOAT, GL_FALSE, 0, (char*)NULL); mVBONormals.bind(); if (vertexNormalLoc != -1) glVertexAttribPointer(vertexNormalLoc, 3, GL_FLOAT, GL_FALSE, 0, (char*)NULL); if (vertexNormalLoc != -1) glEnableVertexAttribArray(vertexNormalLoc); // For each part of the mesh for (unsigned int i=0; i<getNbParts(); i++) { glDrawElements(GL_TRIANGLES, getNbFaces(i) * 3, GL_UNSIGNED_INT, (char*)NULL); } glDisableVertexAttribArray(vertexPositionLoc); if (vertexNormalLoc != -1) glDisableVertexAttribArray(vertexNormalLoc); mVBONormals.unbind(); mVBOVertices.unbind(); // Unbind the VAO mVAO.unbind(); // Unbind the shader shader.unbind(); }
// Render the sphere at the correct position and with the correct orientation void Line::render(openglframework::Shader& shader, const openglframework::Matrix4& worldToCameraMatrix) { // Bind the shader shader.bind(); // Set the model to camera matrix shader.setMatrix4x4Uniform("localToCameraMatrix", worldToCameraMatrix); glBegin(GL_LINES); glVertex3f(mWorldPoint1.x, mWorldPoint1.y, mWorldPoint1.z); glVertex3f(mWorldPoint2.x, mWorldPoint2.y, mWorldPoint2.z); glEnd(); // Unbind the shader shader.unbind(); }
// Render the sphere at the correct position and with the correct orientation void Sphere::render(openglframework::Shader& shader, const openglframework::Matrix4& worldToCameraMatrix) { // Bind the shader shader.bind(); // Set the model to camera matrix const openglframework::Matrix4 localToCameraMatrix = worldToCameraMatrix * mTransformMatrix; shader.setMatrix4x4Uniform("localToCameraMatrix", localToCameraMatrix); // Set the normal matrix (inverse transpose of the 3x3 upper-left sub matrix of the // model-view matrix) const openglframework::Matrix3 normalMatrix = localToCameraMatrix.getUpperLeft3x3Matrix().getInverse().getTranspose(); shader.setMatrix3x3Uniform("normalMatrix", normalMatrix); glEnableClientState(GL_VERTEX_ARRAY); glEnableClientState(GL_NORMAL_ARRAY); if (hasTexture()) { glEnableClientState(GL_TEXTURE_COORD_ARRAY); } glVertexPointer(3, GL_FLOAT, 0, getVerticesPointer()); glNormalPointer(GL_FLOAT, 0, getNormalsPointer()); if(hasTexture()) { glTexCoordPointer(2, GL_FLOAT, 0, getUVTextureCoordinatesPointer()); } // For each part of the mesh for (unsigned int i=0; i<getNbParts(); i++) { glDrawElements(GL_TRIANGLES, getNbFaces(i) * 3, GL_UNSIGNED_INT, getIndicesPointer()); } glDisableClientState(GL_NORMAL_ARRAY); glDisableClientState(GL_VERTEX_ARRAY); if (hasTexture()) { glDisableClientState(GL_TEXTURE_COORD_ARRAY); } // Unbind the shader shader.unbind(); }